Search

Purpose: The 3-category rating of volar plate prominence in relation to the most volar edge of the distal radius (the watershed line) on lateral radiographs was reliable among a small group of surgeons and associated with the probability of flexor tendon irritation and potential rupture. Classifications are often less reliable when tested among a large group of practicing surgeons in different environments. Methods: In this survey-based experiment, an international group of 115 fracture and upper extremity surgeons viewed 1 of 4 sets of 24 lateral radiographs (96 unique lateral radiographs) of patients with distal radius fractures who underwent volar plating in the practice of a single surgeon using 2 types of plates. Surgeons were asked to rate the following metrics: (1) the grade of plate prominence according to Soong, (2) whether the plate was more prominent than the watershed line, (3) whether the plate was separate from the bone distally, and (4) whether there is more than 5° of dorsal angulation of the distal radius articular surface. Results: The interobserver agreement of the classification was “fair” (κ = 0.32; 95% confidence interval [CI] = 0.27–0.36), and grading was more reliable among surgeons who do not supervise trainees. Volar prominence was less reliable (κ = 0.034; 95% CI = 0.013–0.055) than plate separation from bone (κ = 0.50; 95% CI = 0.42–0.59) and more than 5° of dorsal angulation (κ = 0.42; 95% CI = 0.35–0.48). Conclusions: Among a large number of international practicing surgeons, the classification of volar plate prominence in 3 categories was fair. Clinical Relevance: The diagnosis of plate prominence might develop toward criteria with moderate reliability, such as separation of the plate from the bone and residual angulation of the distal radius.

INTRODUCTION: This study was conducted to identify the patient characteristics, classification, treatment, complications, and functional outcomes of operatively treated displaced intra-articular calcaneal fractures (DIACFs) in a level-I trauma center over a 20-year period.METHODS: Patients with a DIACF classified as Sanders ≥2 and operatively treated with percutaneous reduction and screw fixation (PSF) or open reduction and internal fixation (ORIF) between 1998 and 2017 were identified. Pre- and postoperative radiological assessments were performed. Functional outcomes were evaluated using the American Orthopaedic Foot & Ankle Society (AOFAS) score and the Maryland Foot Score (MFS). General health and patient satisfaction were assessed using the Short Form-36 Health Survey (SF-36) and the visual analog scale (VAS).RESULTS: In total, 120 patients with a DIACF that were operatively treated with PSF or ORIF. Of these patients, 72 with a total of 80 DIACFs completed the questionnaires (60%). The average follow-up was 130 months. Mean scores for PSF and ORIF were 74 and 75 for AOFAS, 78 and 78 for MFS, 68 and 61 for SF-36, and 7.7 and 7.5 for VAS, respectively. An infection was the most common complication associated with ORIF (31%), and hardware removal (58%) was the most common complication in patients treated with PSF. Overall, 36 patients (68%) were able to return to work after a median time 6 months (IQR, 3-7) and 6 months (IQR, 3,25-6,75) for PSF and ORIF treated, respectively CONCLUSION: This long-term follow-up study reviews ORIF using ELA and PSF in the treatment of DIACFs. This study shows that both treatments are capable of restoring the Böhler angle and yield relatively good long-term functional outcomes. Differences in complication rates were apparent, infectious problems are inherent to ORIF using ELA, and hardware removal is associated with PSF.

Item does not contain fulltext AIMS: This study was conducted to determine long-term (5-10 years) health-related quality of life (HRQOL) and ceiling effects in patients with a pelvic ring fracture. PATIENTS AND METHODS: We identified all patients with pelvic ring fractures after high-energy trauma admitted at two level 1 trauma centres in the Netherlands from 2006 to 2011. Patients were asked to complete the Majeed Pelvic Score (MPS), EuroQol-5D (EQ-5D) and Short Musculoskeletal Function Assessment (SMFA) questionnaires. HRQOL analysis used a multiple linear regression model. RESULTS: In total, 136 patients returned the questionnaires. The median follow-up period was 8.7 years. The mean MPS and EQ-5D-VAS scores were 85.1 and 74, respectively. The mean EQ-5D index scores were 0.87, 0.81 and 0.82 in Tile B, A and C patients, respectively. The mean SMFA index was 24. A ceiling effect was observed for 1/3 of the patients. After multiple linear regression analysis, no differences were identified among the various fracture types for each questionnaire, with the exception of 2 subscales of the MPS. CONCLUSION: Patients who suffer pelvic ring fractures generally have good HRQOL outcomes after 5-10 years. No significant differences were found among different fracture types. Long-term follow-up of patients with Tile C fractures is warranted.

Item does not contain fulltext PURPOSE: Stable fixation of distal humerus fracture fragments is necessary for adequate healing and maintenance of reduction. The purpose of this study was to measure the reliability and accuracy of interpretation of postoperative radiographs to predict which implants will loosen or break after operative treatment of bicolumnar distal humerus fractures. We also addressed agreement among surgeons regarding which fracture fixation will loosen or break and the influence of years in independent practice, location of practice, and so forth. METHODS: A total of 232 orthopedic residents and surgeons from around the world evaluated 24 anteroposterior and lateral radiographs of distal humerus fractures on a Web-based platform to predict which implants would loosen or break. Agreement among observers was measured using the multi-rater kappa measure. RESULTS: The sensitivity of prediction of failure of fixation of distal humerus fracture on radiographs was 63%, specificity was 53%, positive predictive value was 36%, the negative predictive value was 78%, and accuracy was 56%. There was fair interobserver agreement (kappa = 0.27) regarding predictions of failure of fixation of distal humerus fracture on radiographs. Interobserver variability did not change when assessed for the various subgroups. CONCLUSIONS: When experienced and skilled surgeons perform fixation of type C distal humerus fracture, the immediate postoperative radiograph is not predictive of fixation failure. Reoperation based on the probability of failure might not be advisable. TYPE OF STUDY/LEVEL OF EVIDENCE: Diagnostic III.

Item does not contain fulltext PURPOSE: Surgical costs are under scrutiny and surgeons are being held increasingly responsible for cost containment. In some instances, implants are the largest component of total procedure cost, yet previous studies reveal that surgeons' knowledge of implant prices is poor. Our study aims to (1) understand drivers behind implant selection and (2) assess whether educating surgeons about implant costs affects implant selection. METHODS: We surveyed 226 orthopedic surgeons across 6 continents. The survey presented 8 clinical cases of upper extremity fractures with history, radiographs, and implant options. Surgeons were randomized to receive either a version with each implant's average selling price ("price-aware" group), or a version without prices ("price-naive" group). Surgeons selected a surgical implant and ranked factors affecting implant choice. Descriptive statistics and univariate, multivariable, and subgroup analyses were performed. RESULTS: For cases offering implants within the same class (eg, volar locking plates), price-awareness reduced implant cost by 9% to 11%. When offered different models of distal radius volar locking plates, 25% of price-naive surgeons selected the most expensive plate compared with only 7% of price-aware surgeons. For cases offering different classes of implants (eg, plate vs external fixator), there was no difference in implant choice between price-aware and price-naive surgeons. Familiarity with the implant was the most common reason for choosing an implant in both groups (35% vs 46%). Price-aware surgeons were more likely to rank cost as a factor (29% vs 21%). CONCLUSIONS: Price awareness significantly influences surgeons' choice of a specific model within the same implant class. Merely including prices with a list of implants leads surgeons to select less expensive implants. This implies that an untapped opportunity exists to reduce surgical expenditures simply by enhancing surgeons' cost awareness. TYPE OF STUDY/LEVEL OF EVIDENCE: Economic/Decision Analyses I.

Shock is defined as a change of circulation which results in hypoxia at the tissue level. Lactate and base deficit (BD) are associated with a high risk of multiple organ dysfunction in trauma patients. In this study we evaluated the influence of early recognition of shock in trauma patients.In a retrospective study, relevant data were collected from the Radboud University Nijmegen Medical Centre (RUNMC) database between January 2009 and December 2010. Vital parameters were taken at the accident scene, and patients were divided into four shock classes. Arterial blood gas analysis was performed on arrival in the emergency department. Statistical analysis was performed with SPSS version 17.0. Statistical significance was assumed at p ≤ 0.05.A total of 255 patients were included. Patients who suffered from prehospital shock, and those who were intubated prior to hospital admittance showed a bad outcome, presenting with a more severe metabolic acidosis, higher ISS and higher mortality. There was a significant difference for bicarbonate and BD between shockclass I + II and shockclass III + IV, respectively 22.7 vs. 19.7 and -3.4 vs. -6.9. Intubated patients had a decreased bicarbonate and BD compared to not intubated patients, respectively 21.81 vs. 23.24 and -5.08 vs. -2.38. Mortality and ISS were higher in patients in shock class III and IV. Significant differences in serum lactate levels were not found.Prehospital shock influences patient outcome; outcome of patients is related to initial shock classification. Further validation of our shock classification, however, is necessary.

Een manubriosternale dislocatie is een zeldzame aandoening die ontstaat bij een hoogenergetisch thoraxtrauma. Instabiliteit van deze dislocatie kan instabiliteit van de thorax veroorzaken met respiratoire problemen als gevolg. Dan is operatieve stabilisatie geindiceerd. In deze klinische les beschrijven wij twee casus van een 45-jarige en een 43-jarige patient met deze aandoening. Door de instabiliteit van de thorax na een luxatie en de gewrichtseigenschappen van de manubriosternale overgang is naar onze mening rigide plaatosteosynthese noodzakelijk.

Contains fulltext : 50271.pdf (Publisher’s version ) (Closed access) According to the Dutch medical education guidelines junior doctors are expected to be able to perform first aid and basic life support. A prospective study was undertaken to assess the level of first aid and basic life support (BLS) competence of junior doctors at the Radboud University Nijmegen Medical Centre (RUNMC), the Netherlands. Fifty-four junior doctors (18%), of the medical students in their final years, were submitted to a theoretical test, composed of multiple-choice questions concerning first aid and basic life support. This test was followed by a practical test consisting of two out-of-hospital first aid and basic life support scenarios including cardiopulmonary resuscitation (CPR). In total, 19% of the junior doctors passed the theoretical test. The first scenario was performed correctly in 11%. The CPR situation was correctly performed by 30% of the students as observed by the examiners but when assessed by the checklists of Berden only 6% of the students performed correct CPR. It is concluded that the level of first aid and basic life support of the junior doctors at the RUNMC is low and does not meet the required level as stated in the guidelines for practice of medical education in the Netherlands.

Contains fulltext : 50465.pdf (Publisher’s version ) (Closed access) BACKGROUND: Fatigue is one of the most frequently reported symptoms after Mild Traumatic Brain Injury (MTBI). To date, systematic and comparative studies on fatigue after MTBI are scarce, and knowledge on causal mechanisms is lacking. OBJECTIVES: To determine the severity of fatigue six months after MTBI and its relation to outcome. Furthermore, to test whether injury indices, such as Glasgow Coma Scale scores, are related to higher levels of fatigue. METHODS: Postal questionnaires were sent to a consecutive group of patients with an MTBI and a minor-injury control group, aged 18-60, six months after injury. Fatigue severity was measured with the Checklist Individual Strength. Postconcussional symptoms and limitations in daily functioning were assessed using the Rivermead Post Concussion Questionnaire and the SF-36. RESULTS: A total of 299 out of 618 eligible (response rate 52%) MTBI patients and 287 out of 482 eligible (response rate 60%) minor-injury patients returned the questionnaire. Ninety-five MTBI patients (32%) and 35 control patients (12%) were severely fatigued. Severe fatigue was highly associated with the experience of other symptoms, limitations in physical and social functioning, and fatigue related problems like reduced activity. Of various trauma severity indices, nausea and headache experienced on the ED were significantly related to higher levels of fatigue at six months. CONCLUSIONS: In conclusion, one third of a large sample of MTBI patients experiences severe fatigue six months after injury, and this experience is associated with limitations in daily functioning. Our finding that acute symptoms and mechanism of injury rather than injury severity indices appear to be related to higher levels of fatigue warrants further investigation.

Item does not contain fulltext OBJECTIVES: Intramedullary nailing has been accepted as the treatment of choice for femoral shaft fractures. The aim of our study was to determine the incidence and implications of rotational malalignment after intramedullary nailing using computed tomography measurements. DESIGN: Cohort study. SETTING: Patients who postoperatively visited the orthopaedic outpatient and radiology clinics. PATIENTS: Seventy-six patients, 59 men and 17 women, with a mean age of 28.4 years (15-88). INTERVENTION: Patients treated on a fracture table with an antegrade reamed AO nail (n = 46) or Grosse Kempf nail (n = 30) for a unilateral femoral shaft fracture between 1988 and 1998 were included in the study. MAIN OUTCOME MEASUREMENTS: Patients filled out a questionnaire concerning pain, daily activities, and sport. Oxford, Western Ontario and McMaster University osteoarthritis index, and Harris Hip and Knee Society scores were obtained. Physical exams and computed tomography measurements were established. RESULTS: Twenty-one patients (28%) were found to have a rotational malalignment of 15degrees or more. There was no significant difference in rotational deformity with either the AO or Grosse Kempf nail. The incidence of malrotation was independent of the fracture level. Patients with a torsional deformity had difficulties with more demanding activities like running, sports, and climbing stairs. Patients with an external rotational malalignment (n = 12) have more functional problems than patients with an internal rotational malalignment (n = 9). Clinically determined rotation differences are not accurate (+/-20degrees) compared with the established computed tomography measurements. CONCLUSIONS: Rotational malalignment after intramedullary nailing for femoral fractures is found in 28% of the patients in this study. These patients have difficulties with more demanding activities, especially when they have an external torsional deformity.

Objective: To study the ability of glial (glial fibrillary acidic protein [GFAP] and S100b) and neuronal (neuron specific enolase [NSE]) protein levels in peripheral blood to predict outcome after severe traumatic brain injury.Methods: Eighty-five patients with severe traumatic brain injury (admission Glasgow Coma Score [GCS] ≤ 8) were included. Blood samples taken at the time of hospital admission were analyzed for S100b, GFAP, and NSE. Data collected included demographic and clinical variables. Outcome was assessed using the Glasgow Outcome Scale (GOS) at 6 months post injury.Results: The median serum levels of S100b, GFAP, and NSE were raised 18.3 fold (S100b), 4.6 fold (GFAP), and twofold (NSE) compared to normal reference values. S100b, GFAP, and NSE serum levels correlated significantly with the injury severity score and CT findings but not with age, sex, or GCS. S100b, GFAP, and NSE levels were significantly higher in patients who died or had a poor outcome 6 months post injury than in those who were alive or had good outcome. S100b level >1.13 μg/L was the strongest predictor of death with 100% discrimination, but GFAP (>1.5 μg/L) and NSE (>21.7 μg/L) levels also strongly predicted death (adjusted odds ratios 5.82 [for GFAP] and 3.91 [for NSE]). S100b, GFAP, and NSE all strongly predicted poor outcome (adjusted odds ratios 5.12 [S100b], 8.82 [GFAP], and 3.95 [NSE]).Conclusions: These results suggest that determination of serum levels of glial and neuronal proteins may add to the clinical assessment of the primary damage and prediction of outcome after severe traumatic brain injury.

Item does not contain fulltext Documenting the timing and organisation of trauma resuscitation can be utilised to assess performance standards, and to ensure a high quality of trauma resuscitation procedures. Since there is no European literature available on trauma resuscitation time (TRT) in the emergency room, the aim of this descriptive study is to evaluate TRT in the Netherlands. The introduction of an ATLS-trained prehospital mobile medical team (MMT) in the Nijmegen area initiated the on-site advanced trauma life-support for the prehospital management of trauma patients. We studied TRT in two groups of patients, one with, the other without on-site care by a MMT. In the emergency room the use of videotape recording was chosen to document trauma resuscitation (22 actions) and TRT. A specially flow-chart was used to define the TRT-procedures. We studied 43 patients; 27 without MMT treatment and 16 with MMT treatment. The activities were divided into the ABCDE's of trauma care. Significant more patients of the MMT group were intubated before arrival in the hospital (12/16 (75%) versus 2/27 (2%), P

Purpose To address the null hypothesis that surgeons shown radiographs of little finger metacarpal neck fractures with measured fracture angulation would recommend surgery as often as surgeons shown unmarked radiographs. Methods Members of the Science of Variation Group, an international collaboration of fully trained orthopedic and trauma surgeons, were asked to review 20 little finger metacarpal neck fracture cases, which included a vignette and 3 high-quality radiographs. Members were then randomized to review radiographs with or without measured fracture angulation on the lateral view and select operative or nonoperative management. Results Surgeons shown radiographs with measured angulation were more likely to recommend surgery, and there was less variability among these surgeons, particularly for fractures with less angular deformity. Conclusions Measured fracture angulation has a small but significant influence on treatment recommendations for little finger metacarpal neck fractures. Copyright (C) 2014 by the American Society for Surgery of the Hand. All rights reserved

We describe a patient who was admitted to our hospital with an enlarged left lobe of the thyroid gland. Since fine-needle aspiration showed atypical follicular cells, a surgical exploration followed. Owing to extensive tumor infiltration into the surrounding tissues curative surgery was not possible, and only an incisional biopsy was taken. Histological examination of this biopsy revealed a mixed tumor composed of epithelial and myoepithelial cells. A primary thyroid tumor, metastasis of a salivary gland, and a skin appendage tumor could be excluded based on clinical examination, conventional histology, and immunohistochemistry. A tumor of the left breast treated 12 years earlier had originally been classified as an intraductal/intracystic carcinoma with focal invasion, but was re-examined. Using immunohistochemistry, the breast tumor was reclassified as a malignant adenomyoepithelioma. The current tumor was apparently a metastasis from this primary breast tumor. An updated review of the literature is given, including current knowledge on histological and immunohistochemical features of adenomyoepithelioma of the breast, with special attention to the reported pathological characteristics of recurrent and malignant tumors. Based on the reported pathological characteristics of recurrent and metastatic tumors we offer a diagnostic tool for identifying potentially malignant and recurrent tumors.

Bilateral carotid artery dissection is a rare and unusual complication of blunt cervicofacial trauma. The diagnosis of a carotid injury is rarely suspected in trauma patients with neurological deficits. Neurological symptoms may develop in a delayed fashion. Angiography should be considered in trauma patients with hemiplegia and a normal mental status and in patients with blunt cervical trauma with an abnormal neurological examination. Initial heparinisation can prevent arterial thrombosis and neurological deterioration.

Preoperative radiotherapy as an adjunct to surgery for rectal carcinoma is generally thought to impair the healing of colorectal anastomoses. To delineate the presumed hazards of preoperative irradiation, we investigated this effect in a new model where, in contrast to experiments reported so far, anastomoses were constructed using normal tissue for the proximal limb and irradiated tissue for the distal limb. A group of 120 male Wistar rats, divided randomly into 12 groups of 10 each, were used. In 60 animals, a colonic segment of 2.2 cm was irradiated with a single dose of 25 Gy X rays administered 28 or 5 days or 3 or 1 day(s) before colonic resection. For each experimental group, a control group was included which was sham-irradiated on the same preoperative day. The animals were sacrificed on the third or the seventh postoperative day, and healing of the anastomosis was evaluated by measurement of bursting pressure, breaking strength and hydroxyproline concentration and content. Comparison between each experimental group and its control group showed that preoperative irradiation did not reduce the strength of the anastomoses. Also, the concentration and content of hydroxyproline in the tissue of the anastomoses were unchanged. These data indicate that construction of a colonic anastomosis consisting of one irradiated bowel end in rats is not by definition detrimental to the development of early wound strength.

Purpose To address the factors that surgeons use to decide between 2 options for treatment when the evidence is inconclusive. Methods We tested the null hypothesis that the factors surgeons use do not vary by training, demographics, and practice. A total of 337 surgeons rated the importance of 7 factors when deciding between treatment and following the natural history of the disease and 12 factors when deciding between 2 operative treatments using a 5-point Likert scale between "very important" and "very unimportant." Results According to the percentages of statements rated very important or somewhat important, the most popular factors influencing recommendations when evidence is inconclusive between treatment and following the natural course of the illness were "works in my hands," "familiarity with the treatment," and "what my mentor taught me." The most important factors when evidence shows no difference between 2 surgeries were "fewer complications," "quicker recovery," "burns fewer bridges," "works in my hands" and "familiarity with the procedure." Europeans rated "works in my hands" and "cheapest/most resourceful" of significantly greater importance and "what others are doing," "highest reimbursement," and "shorter procedure" of significantly lower importance than surgeons in the United States. Observers with fewer than 10 years in independent practice rated "what my mentor taught me," "what others are doing" and "highest reimbursement" of significantly lower importance compared to observers with 10 or more years in independent practice. Conclusions Surgeons deciding between 2 treatment options, when the evidence is inconclusive, fall back to factors that relate to their perspective and reflect their culture and circumstances, more so than factors related to the patient's perspective, although this may be different for younger surgeons. Clinical relevance Hand surgeons might benefit from consensus fallback preferences when evidence is inconclusive. It is possible that falling back to personal comfort makes us vulnerable to unhelpful commercial and societal influences.

Background and purpose : Preoperative irradiation with direct postoperative chemotherapy could benefit patients undergoing surgery for colorectal cancer. This study was designed to examine, in an experimental model, if such treatment is feasible without detrimental effects on early anastomotic healing. Material and methods : A colonic segment was irradiated (25 Gy) in 3 groups ( n = 10 each) of male Wistar rats. After 5 days, a colonic resection was performed with anastomotic construction; only the distal limb consisted of irradiated bowel. Postoperatively, animals received daily intraperitoneal 5-fluorouracil (5-FU, group I/CH: 17.5 mg/kg; group I/CL: 12.5 mg/kg) or saline (group I). Three additional groups were treated similarly, but with sham-irradiation: CH, CL, and C, respectively. All rats were killed 7 days postoperatively. Parameters measured were: weight, serum albumin and protein, and anastomotic bursting pressure, breaking strength and hydroxyproline content. Results : Body weight was diminished significantly in rats receiving chemotherapy. Serum albumin and protein was significantly lower in irradiated groups. At sacrifice, 40% of I/CH rats had functional rectal stenosis. The average bursting pressure ( P = 0.0005) and the average breaking strength ( P = 0.012) were only reduced significantly in the CH group. The anastomotic hydroxyproline content was significantly higher in the I/CH and I/CL groups vs. the control group. Conclusion : High-dose direct postoperative 5-FU leads to reduced anastomotic strength. Although the combination of preoperative irradiation (25 Gy) and direct postoperative high-dose 5-FU does not reduce early anastomotic strength, some stenosis may occur. The combination of preoperative irradiation and low-dose 5-FU has no such effect.

A randomized two period crossover trial was performed at the Accident and Emergency (A & E) department of the University Hospital in Nijmegen (The Netherlands). We assessed what the impact was of (mandatory) consultation of a protocol for the management of isolated traumas on treatment decisions of residents. All eight surgical residents who regularly worked in the A & E department participated in the trial. All patients who entered the A & E department between October 13, 1992 and June 9, 1993, of age 16 years or older with an isolated fracture without concomitant lesions were admitted to the study. During the experimental periods, the management protocol was available on computer (using ProtoVIEW) and during the control periods on paper. Main measurements were treatment adjustments made by residents (after consulting different information sources), and their opinion about ProtoVIEW as an information source assessed by means of a questionnaire. When protocol consultation was mandatory, residents changed their treatments almost four times more often towards the protocol than during the control periods (P = 0.01 Chi-square test). Most residents found ProtoVIEW easy to use, liked it as a useful training source while half of them said they would use the system in daily clinical practice. We conclude that mandatory protocol consultation using ProtoVIEW influenced protocol adherence positively.

Objective. In prehospital emergency medicine, rapid transport to a hospital is often required. Transport can be done by ambulance or HEMS (Helicopter Emergency Medical Service). Factors influencing transport time are mostly unknown. This study aims to identify these factors and optimize prehospital transport times. Methods. This is a retrospective study with HEMS data from 2010-2011. Trauma mechanism, patient characteristics, and weather conditions were collected from each transport. Distance to the hospital, predicted transport time, and the actual transport time were calculated. Each factor was analysed to determine influence on transport time. Results. We analysed 732 cases (612 by ambulance and 120 by helicopter) and found no association between mechanism of trauma, age, time of day, or weather conditions on transport time. However, transport by HEMS helicopter was nearly always faster, even at short distances. The average transport time of ambulance transport was 79% (95% CI 77.1–80.3) of target time, while in helicopter transport this was 39% (95% CI 37.4–42.9). Conclusion. This study shows the advantage of the HEMS helicopter in rapid transport from the scene to the hospital. Transport by helicopter was twice as fast as ground transport, independent of trauma mechanism, distance to hospital, or weather conditions.

Contains fulltext : 87546.pdf (Publisher’s version ) (Closed access) BACKGROUND: In renal hyperparathyroidism, it remains unclear whether intraoperative parathyroid hormone (PTH) measurements can predict postoperative outcome and guide the extent of surgical exploration. METHODS: In 42 parathyroidectomies for renal hyperparathyroidism, we analyzed the predictive value of the Miami Criterion of 50% intraoperative PTH decrease. We used receiver operating characteristic (ROC) curves to find the criterion with the best diagnostic performance. We also investigated whether the whole PTH assay improved accuracy. RESULTS: Twenty-six operations (62%) resulted in normal postoperative PTH. With the Miami Criterion, cure was predicted with a sensitivity of 95% and specificity of only 8%. Specificity could be improved to 50% using a 70% PTH decrease as cut-off level. The whole PTH assay did not improve accuracy. CONCLUSION: Prediction of cure after parathyroidectomy for renal hyperparathyroidism might be improved with a criterion of 70% PTH decrease 10 minutes after excision of all parathyroid glands. Prospective analysis needs to validate this new criterion. 01 oktober 2010

Item does not contain fulltext

We report a lethal case of fat embolism syndrome in a nine-year-old child after a direct blunt trauma leading to a pelvic fracture. On the second day, signs of bowel perforation and septic shock led to an acute aggravation of the pulmonary symptoms, cardiac arrest and death. Fat embolism is seldom thought to occur in pediatric trauma patients; however, this case illustrates it can lead to disastrous sequela. Since there is no specific treatment for it, prevention by early fracture stabilization is the only option.

Analysis of the value of intraoperative parathormone (PTH) measurement in patients with primary hyperparathyroidism.Prospective study.Evaluation of the value of intraoperative measurement ofPTH in 75 patients (including 19 patients with multiple endocrine neoplasia(MEN)-1 syndrome) who underwent parathyroidectomy in 2001-2005.The so-called Miami-criterion (PTH concentration 10 min after excision at least 50% below the value measured prior to the first incision) correctly predicted the success of the operation in 91% of the subjects. The success rate was correctly predicted as follows: in subgroups of patients with MEN-1 syndrome, 85%, patients after exclusion of MEN-1, 94%, and patients in whom a solitary adenoma was likely after preoperative localization studies, 97%. In 13% of the total number of operations, PTH-measurements led to further exploration, removal of additional parathyroid tissue and normocalcemia postoperatively. In patients without MEN-1 syndrome, in whom a solitary adenoma was likely on the basis of preoperative investigations, it was possible to limit the operation to a unilateral procedure in 87%.In the majority of patients with primary hyperparathyroidism, intraoperative PTH-measurement in combination with preoperative imaging studies leads to patients being cured with a unilateral instead of a bilateral operation.

Item does not contain fulltext Computer-assisted orthopaedic surgery has developed considerably during the past few years. Several manufacturers produce hardware and software for use in trauma surgery. Validation of these systems before clinical application is mandatory to be sure they work accurately and safely. The accuracy of surgical performance is highly correlated with the cut-out percentages of hip screws. In a standardized operative setting, three cannulated hip screws were inserted in each of 20 sawbones. The screws were positioned either by fluoroscopic navigation technique or by conventional operative technique depending on randomization. Our primary aim was to assess whether computer-navigated screw fixation is equally safe compared with conventional screw fixation using fluoroscopy. To determine safety, we investigated number of drilling attempts, screw position, and radiation time. Secondary to these safety parameters, we also compared the operating time between the two procedures to assess the efficiency of computer navigation. Statistical analysis showed no differences regarding accuracy of screw position. Computer-assisted surgery resulted in fewer drilling attempts and less radiation time, with a similar operation time. We believe the currently used navigation system is safe and accurate.

In het algemeen kan worden gesteld dat spierscheuren in het gehele lichaam een gemeenschappelijke etiologie, klinisch beeld en behandelingsprincipe hebben. Specifieke verschillen treden op door de precieze plaats van de spierwond (1).

De luxatie van de proximale fibulakop is een uiterst zeldzaam letsel. In het Academisch Ziekenhuis Nijmegen St. Radboud zagen wij het de laatste 6 jaar eenmaal.

Een wondinfectie ontstaat indien de systemische en lokale afweermechanismen tekort schieten. Omstandigheden die dit bevorderen zijn een wond met veel necrotisch weefsel (debris en dikke korstvorming, hieronder hoopt zich vaak weer pus op) of de aanwezigheid van corpora aliena, zoals splinters en straatvuil.

Item does not contain fulltext Scedosporium apiospermum is a mold that is increasingly being recognized as an opportunistic pathogen in immunocompromised patients, and treatment is complicated by intrinsic resistance to several antifungal agents. In our hospital, two cases of S. apiospermum infection occurring within 2 weeks were successfully treated with voriconazole. Since both patients were infected with an uncommon pathogen, a search for a common nosocomial source was performed. As environmental cultures yielded no S. apiospermum, and random amplified polymorphic DNA (RAPD) fingerprinting showed that the patients' strains were genotypically unrelated, we considered a common nosocomial source of S. apiospermum to be unlikely.

Contains fulltext : 81741.pdf (Publisher’s version ) (Closed access)

Hyperthermia is a promising method for increasing the efficacy of radiation therapy of colorectal cancer. To study the histological aspects of healing of an anastomosis in the colon, after combined preoperative (sham) irradiation and (sham) hyperthermia treatment, 48 male Wistar rats were divided randomly into four groups. In each animal, a segment of the colon was treated successively by (sham) irradiation (single dose of 25 Gy X rays) and/or (sham) hyperthermia (44 degrees C, 30 min). After 5 days, a resection of the colon was performed by construction of an anastomosis: The distal limb consisted of (sham-) irradiated and/or (sham-) hyperthermia-treated bowel. Rats were killed 3 or 7 days after the surgical procedure. Evaluation of healing of the anastomosis was made by: (1) histological analysis of sections stained with hematoxylin and eosin, (2) semiquantitative measurement of collagen in the area of the anastomosis and (3) semiquantitative analysis of the number of macrophages by immunocytochemistry. Healing of the anastomoses in animals receiving irradiation or hyperthermia alone and in control animals was relatively uneventful. There were no differences between groups in formation of collagen or infiltration by macrophages in the area of the anastomosis. Animals treated with both radiation and hyperthermia showed marked necrosis, infiltration by polymorphonuclear leukocytes and rupture of the anastomosis. It is concluded that preoperative irradiation with a single dose of 25 Gy in combination with local hyperthermia at 44 degrees C for 30 min leads to disturbed repair of anastomoses.

Item does not contain fulltext

Purpose: to determine whether intraoperative radiotherapy causes long-term negative effects on the healing of colonic anastomoses in the rat. Methods and Materials: 175 rats were divided into seven equal groups. One group served as sham-irradiated control group. In the others, following a colonic resection, 1 or 2 cm of the distal bowel limb was irradiated with a single dose of 10, 15, or 20 Gy (groups 10/1, 15/1, 20/1, 10/2, 15/2, and 20/2, respectively). Subsequently, an anastomosis was constructed. The animals were killed after 6 ( n = 10 in each group) or 12 ( n = 15) months. The abdomen was inspected for abnormalities and the colonic diameter was measured. The anastomotic segment was analyzed biochemically (hydroxyproline) and histologically. Results: During the experimental period, 1 rat (group 15/1) died because of anastomotic leakage and 3 others died from unknown causes. There was no difference in colonic diameter between groups. Altogether 17 rats developed an adenocarcinoma in the irradiated area: 11 of these had received a dose of 20 Gy. Histological observation indicated that fibrosis was present only in a limited number of animals, mostly after irradiation with a dose of 15 or 20 Gy. All anastomoses were functional and showed normal histology. The hydroxyproline content of the anastomotic segment was increased—with respect to the control group—only in the 20/2 group after 6 months. After 12 months, the hydroxyproline concentration in the (irradiated) segment distal to the anastomosis proper was higher in the 10/1 and 15/1 groups than in the control group. Otherwise, there were no differences between groups. Conclusion: Intraoperative irradiation with a single dose of 10–20 Gy, delivered to the distal limb used for anastomotic construction, does not appear to constitute a threat to anastomotic integrity. Dose-related changes included formation of adenocarcinomas and fibrosis, but function and histology of the anastomosis proper remained unaffected.

Objective: To determine if a combination of preoperative irradiation and local hyperthermia of a colonic segment is detrimental to subsequent early anastomotic healing. Design: A prospective randomized experimental trial. Setting: An animal research laboratory. Interventions: Eighty male Wistar rats were randomly divided into 4 groups. In each animal, a segment of the colon was treated successively by (sham) irradiation and (sham) hyperthermia. After 5 days, a colonic resection was performed and an anastomosis was constructed; the distal limb consisted of (sham) irradiated, (sham) hyperthermia—treated bowel. The rats were killed 3 or 7 days after surgery. Main Outcome Measures: Body weight, serum albumin and protein levels, anastomotic bursting pressure, breaking strength, and hydroxyproline content. Results: All animals tolerated (sham) treatment well. Weight was diminished, though not notably, in treated animals vs the control group. After combined preoperative irradiation and hyperthermia, the frequency of local anastomotic complications increased: 4 of 20 animals had a covered perforation when they were killed. In this group, the bursting pressure was lower 3 days after the operation (P=.008). The breaking strength was also lower but not notably. The serum albumin level was significantly lower in this group vs the control group (P=.006); the serum protein level was not decreased. After 7 days, no differences existed between the groups. The hydroxyproline content of the anastomotic tissue was notably higher in rats treated with radiation plus hyperthermia vs control rats (in both the 3- and 7-day groups). The anastomotic hydroxyproline concentration did not differ between the groups. Conclusions: The combination of preoperative irradiation and hyperthermia results in increased local anastomotic complications. Anastomotic strength is at risk in the first days after the anastomotic reconstruction. Preoperative irradiation or hyperthermia alone does not lead to impaired anastomotic healing in the early phase. Arch Surg. 1996;131:1037-1042.

Femoral neck fractures in healthy young adults caused by a relatively low-energy trauma are uncommon. The cases are presented of four cyclists, men of 37, 42 (n = 2) and 43 years old, with a femoral neck fracture, in which so called clipless pedals played an important part. The shoes of the cyclist are affixed to these pedals, and the patients had been unable to remove their feet quickly when they fell. They were treated by osteosynthesis using screws, but one of them developed intra-articular infection which eventually necessitated implantation of a total hip prosthesis.

The in-hospital management of polytrauma patients can be divided into four periods [1]. In the acute period problems of the ABC (airway, breathing, circulation) are addressed. When vital functions have been stabilized, the primary period starts, with time for further diagnostic procedures and for a second series of operations, addressing injuries that may become life-threatening in the near future, or which may lead to severe disability if not treated early. The secondary period begins after 48–72 h, when the patient has been optimally stabilized. During the secondary period, operative reconstruction may be performed of major closed joint injuries (e.g., acetabular fractures) and closed fractures of the forearm. The tertiary period follows after 6–7 days and is determined by two events, septic complications and rehabilitation of the patient. Optimal rehabilitation can start after only operative stabilization of all major fractures, or consolidation of such fractures if treated conservatively.

Bei der Phenoplastbildung entstehen als primare Kondensationsprodukte bei saurer Reaktionsfuhrung Diphenylmethanabkommlinge, bei alkalischer Kondensation bilden sich Oxy-benzylalkohole und Diphenylmethanabkommlinge, je nach der Konzentration des Kondensationsmittels. Der Reaktionsverlauf ist also nicht nur abhangig von dem Mischungsverhaltnis der einzelnen Reaktionsteilnehmer, sondern wird auch vom Kondensationsmittel gesteuert. Dabei ist keine Beeintrachtigung des Hartungsvermogens der entsprechenden Reaktionsprodukte festzustellen.

Contains fulltext : 98469.pdf (Publisher’s version ) (Closed access) This study aimed to evaluate the intra- and interobserver agreement for both fracture classification according to Schatzker and treatment plan of tibial plateau fractures using plain radiographs alone and with computed tomography (CT) scans. The study was carried out prospectively to assess the impact of an advanced radiographic study on the agreement of treatment plan and fracture classification of tibial plateau fractures. Eight experienced observers (six surgeons and two radiologists) classified 15 tibial plateau fractures with plain radiographs and CT scans and set up a treatment plan. Agreement was measured using kappa coefficients. Using plain radiographs alone, the mean interobserver kappa coefficient for classification was 0.47, which decreased to 0.46 after addition of CT scans. Using plain films alone for formulating a treatment plan, the mean interobserver kappa coefficient was 0.40, which decreased to 0.30 after addition of CT scans. The mean intraobserver kappa coefficient for fracture classification using plain radiographs was 0.60, which decreased to 0.57 with addition of CT scans. The mean intraobserver kappa coefficient for treatment plan based on plain radiographs alone was 0.53, which decreased to 0.45 after addition of CT scans. In contrast with other recent publications, there is no increase in inter- and intra-agreement of a CT scan compared to plain radiographs for the classification and treatment plan in tibial plateau fractures. Routine CT scanning of the knee for tibial plateau fractures is not supported by this study.

Based on the case history of two patients, the problems of suspected familial colon carcinomas are discussed with special reference to screening policy and treatments. Upon identification of hereditary colon cancer (Lynch syndrome). treatment of the patient should consist of extensive resection and, if the patient is younger than 50 years, life-long careful follow-up.