13 results on '"Freek Hollman"'
Search Results
2. Reducing Our Carbon Footprint By Using Reusable Navigation In RTSA. First Study Comparing The Accuracy Of Freehand Navigation With Reusable
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Janneke Crutzen, Esther Janssern, Freek Hollman, and Okke Lambers Heerspink
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Orthopedic surgery ,RD701-811 ,Diseases of the musculoskeletal system ,RC925-935 - Published
- 2024
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- View/download PDF
3. Trustworthy Deep Learning For The Automated Quantification Of The Fatty Infiltration Of The Rotator Cuff Muscles Using MRI
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Laith Alzubaidi, Asma Salhi, Roberto Pareyon, Helen Ingoe, Freek Hollman, Jashint Maharaj, Yuantong Gu, Ruth Delaney, Kenneth Cutbush, and Ashish Gupta
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Orthopedic surgery ,RD701-811 ,Diseases of the musculoskeletal system ,RC925-935 - Published
- 2024
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4. MRI-Based Reliability And Validity Of Goutallier Classification For Grading Fatty Infiltration Of The Rotator Cuff Across The Whole Scapula
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Freek Hollman, Ashish Gupta, Ruth Delaney, and Kenneth Cutbush
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Orthopedic surgery ,RD701-811 ,Diseases of the musculoskeletal system ,RC925-935 - Published
- 2024
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5. Trustworthy deep learning framework for the detection of abnormalities in X-ray shoulder images
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Laith Alzubaidi, Asma Salhi, Mohammed A.Fadhel, Jinshuai Bai, Freek Hollman, Kristine Italia, Roberto Pareyon, A. S. Albahri, Chun Ouyang, Jose Santamaría, Kenneth Cutbush, Ashish Gupta, Amin Abbosh, and Yuantong Gu
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Medicine ,Science - Published
- 2024
6. Blount disease and familial inheritance in Ghana, area cross-sectional study
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Freek Hollman, Niels Jansen, Frans Bovendeert, Prosper Moh, Alexander Stegmann, and Heleen M Staal
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Pediatrics ,RJ1-570 - Abstract
Objective The objective of this study is to study familial inheritance for Blount disease to create better understanding of the aetiology of Blount disease.Methods After reviewing patient files and conventional roentgenologic imaging, 139 patients with Blount disease were included in this cross-sectional study, of which 102 patients were interviewed. During the interviews, patient characteristics and family history were collected. Blood samples were taken from five patients and three families and a whole exome sequencing was performed.Results Although patients came from all over the country, 90% of the patients belonged to the Akan tribe. A positive family history was found in 63 families (62%), of which, almost two-third had a positive family history in a first-degree family member. In most of the cases (64%), the varus legs resolved over time. In 9%, severe bowing remained ‘just like the patient’. The results of the whole exome sequencing did not show a genetic predisposition.Conclusion This study describes a large group of Blount patients. Because of the high numbers of positive family history and the centralisation of patients in the Akan region, a familial predisposition is suggested. Further genetic research is essential for better understanding of the possible multifactorial aetiology in Blount disease.
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- 2021
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7. Interchangeability of Diverse Analog Scales Used Within the Constant–Murley Score
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Freek Hollman, M.D., Wanda M. de Raadt, M.Sc., Nienke Wolterbeek, Ph.D., Lodewijk W. van Rhijn, Ph.D., M.D., and Kiem G. Auw Yang, Ph.D., M.D.
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Sports medicine ,RC1200-1245 - Abstract
Purpose: To assess the interchangeability of various existing answering scales within the subjective part of the Constant–Murley Score (CMS) and to determine the effect of the different answering scales on the inter- and intraobserver reliability. Methods: In this prospective, single-center, cross-sectional trial, patients with shoulder problems were included from June to September 2018. Subjects recruited were 18 years or older, presented various shoulder complaints, e.g., diagnosis of osteoarthritis, subacromial pain syndrome, rotator cuff or biceps tendon problems, or frozen shoulder. An extended version of the CMS was prepared including the same questions multiple times but with varying answer scales. Six versions were made with random order of the questions. The answering scales were a verbal and paper based visual analog scale (VAS), smiley face scale, Numeric Rating Scale (NRS), and categories. Internal consistency of the various CMS, Spearman correlation coefficients, intraobserver, and interobserver agreement was assessed (ICC). Results: In total, 93 patients were included. The total CMS using the paper-based VAS, smiley face score, and NRS were 46.9 ± 19.4, 45.2 ± 18.5, and 45.0 ± 18.7. Correlations of the total scores of the different versions varied from 0.98 to 0.99. CMS-category versus CMS-smiley face score and CMS-category versus CMS-NRS pain were significantly different (P = .02 and P = .01). Good internal consistency (0.76-0.79) and acceptable inter- and intraobserver reliability were found (ICC: 0.89-0.97, 0.98-0.99; P < .001). Conclusions: The different answering scales for the subjective subscales within the CMS for pain, work, and recreational activity were not interchangeable on item level and significantly influenced the total CMS score. Differences were below the smallest detectable change and interpreted as not clinically relevant. Particularly on item level, data from different studies cannot be pooled and compared when different answering scales are being used. The inter- and intraobserver reliability were excellent. Level of Evidence: Level I, prospective cross-sectional study.
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- 2021
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8. Non-inferiority and cost-effectiveness trial of isolated biceps tenotomy versus tenotomy with rotator cuff repair in patients with stage 2–3 Goutallier fatty degenerative cuff lesions (TenCuRe study): protocol of a multicentre randomised controlled trial
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Freek Hollman, Nienke Wolterbeek, and Gie Auw Yang
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Medicine - Abstract
Introduction For patients who are diagnosed with lesions of the rotator cuff that present advanced levels of fatty degeneration, arthroscopic repair of the rotator cuff remains controversial. This controversy can be attributed to the frequently reported high failure rate of the tendon fixation and the fact that it remains unclear why repair for these tears results in significant clinical improvement independent of the occurrence of such a re-tear. Recent publications have reported comparable clinical improvements when merely a tenotomy of the long head of the biceps tendon was performed and the rotator cuff tear was left untreated. These observations raise questions on the value of performing the more extensive cuff repairs in degenerative cuff tears. Even more, rehabilitation after an isolated tenotomy is much less cumbersome as compared with rehabilitation after rotator cuff repair and, therefore, might result in improved patient satisfaction. The goal of this trial is to study function and quality-of-life of patients undergoing arthroscopic biceps tenotomy with or without an additional cuff repair and to include an economic evaluation.Methods and analysis This multicentre randomised controlled non-inferiority trial, including an economic evaluation, is designed to compare the short-term and long-term outcome of patients who underwent an arthroscopic tenotomy of the long head of the biceps tendon with or without a cuff repair. We will include 172 patients with stage 2–3 Goutallier fatty infiltration cuff tears and with clinical symptoms of biceps pathology. Primary outcome is the rotator cuff specific quality-of-life (Western Ontario Rotator Cuff index) on the short term (6 months postoperatively). Secondary outcomes are quality-of-life 1, 2 and 5 year postoperatively and function (Constant-Murley score, glenohumeral range of motion), recovery status, pain (visual analogue scale), economic evaluation, satisfaction of treatment on the short-term and long-term and re-tear rate at 6 months determined with an ultrasound.Ethics and dissemination This trial has been approved by the Medical Research Ethics Committees United (MEC-U), Nieuwegein, the Netherlands (NL54313.100.15) and will be performed in accordance with the Declaration of Helsinki with the Medical Research Involving Human Subjects Act (WMO). The results of this study will be reported in peer-reviewed journals and at (inter)national conferences. Furthermore, we will share our findings with the appropriate guideline committees.Trial registration number The Dutch Trial Registry (NL4010).
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- 2020
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9. Insight into the possible aetiologies of Blount's disease
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Pascal Vroemen, Prosper Moh, Freek Hollman, Radjen R. Banwarie, Nandi Meijs, Jacobus J. Arts, and Heleen M. Staal
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Pediatrics ,medicine.medical_specialty ,GROWTH-PLATE ,MEDLINE ,CHILDREN ,Disease ,Cochrane Library ,bowed leg ,Deformity ,medicine ,Genetic predisposition ,Humans ,Osteochondrosis ,Orthopedics and Sports Medicine ,Blount's disease ,DEFORMITIES ,BIOMECHANICAL ANALYSIS ,Bone Diseases, Developmental ,business.industry ,aetiology of Blount's disease ,Evidence-based medicine ,medicine.disease ,ONSET TIBIA VARA ,CAPITAL FEMORAL EPIPHYSIS ,Causality ,BODY-MASS INDEX ,OBESITY ,Pediatrics, Perinatology and Child Health ,Etiology ,KNEE ,medicine.symptom ,business - Abstract
Blount's disease or bowed leg deformity, is a unilateral or bilateral growth deformity of the medial proximal tibia that leads to a tibial varus deformity. A distinction can be made in an early and late onset type. The disease seems to have a predisposition for certain descends. Since the first publication of Blount's disease, different hypotheses on the aetiology are proposed but no consensus exists. The objective of this study is to provide an overview of the available hypotheses on the aetiology of Blount's disease since its first description and assessment of the available level of evidence, the quality of evidence and the occurrence of bias supporting these individual hypotheses. A systematic search according to the PRISMA statement was conducted using PubMed, MEDLINE, EMBASE and the Cochrane Library using a broad combination of terminology to ascertain a complete selection. Proper MESH search criteria were formulated and the bibliographic search was limited to English and Dutch language articles. Articles with no mention of aetiology or a disease related to Blount's were excluded. Level of evidence and types of bias were assessed. Thirty-two articles that discuss the aetiology of Blount's disease were selected. A variety of hypotheses was postulated in these articles with most research in the field of increased mechanical pressure (obesity, early walking age) and race (descend). Blount's disease most likely has a multifactorial origin with influence of genetic and racial predisposition, increased mechanical pressure on the growth plate as a consequence of obesity or early walking age and possibly also nutrition. However, the exact aetiology remains unclear, the probable explanation is that multifactorial factors are all contributing to the development of Blount's disease. Histological research has shown that a disorganization of bone and cartilage structures on the medial side of the proximal tibial physis is present in patients with Blount's disease. Based on the available evidence on the aetiology of Blount's disease, we conclude that it is multifactorial. Most papers focus only on one hypotheses of Blount's disease occurrence and all are characterized as low level of evidence. There seems to be a preference for certain descends. Further research on especially genetic predisposition is needed to provide more insight in this factor of Blount's disease.
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- 2020
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10. Interchangeability of Diverse Analog Scales Used Within the Constant-Murley Score
- Author
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Wanda M. de Raadt, Nienke Wolterbeek, Freek Hollman, Kiem G. Auw Yang, Lodewijk W. van Rhijn, Orthopedie, MUMC+: MA AIOS Orthopedie (9), RS: CAPHRI - R3 - Functioning, Participating and Rehabilitation, MUMC+: MA Orthopedie (3), MUMC+: Centrum voor Bewegen (3), and MUMC+: MA Orthopedie (9)
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medicine.medical_specialty ,Visual analogue scale ,business.industry ,Rehabilitation ,Intraobserver reliability ,Public Health, Environmental and Occupational Health ,Frozen shoulder ,Physical Therapy, Sports Therapy and Rehabilitation ,medicine.disease ,Interchangeability ,Spearman's rank correlation coefficient ,medicine.anatomical_structure ,Constant murley score ,Sports medicine ,Numeric Rating Scale ,medicine ,Physical therapy ,Orthopedics and Sports Medicine ,Rotator cuff ,Original Article ,business ,RC1200-1245 ,health care economics and organizations - Abstract
Purpose: To assess the interchangeability of various existing answering scales within the subjective part of the Constant-Murley Score (CMS) and to determine the effect of the different answering scales on the inter- and intraobserver reliability.Methods: In this prospective, single-center, cross-sectional trial, patients with shoulder problems were included from June to September 2018. Subjects recruited were 18 years or older, presented various shoulder complaints, e.g., diagnosis of osteoarthritis, subacromial pain syndrome, rotator cuff or biceps tendon problems, or frozen shoulder. An extended version of the CMS was prepared including the same questions multiple times but with varying answer scales. Six versions were made with random order of the questions. The answering scales were a verbal and paper based visual analog scale (VAS), smiley face scale, Numeric Rating Scale (NRS), and categories. Internal consistency of the various CMS, Spearman correlation coefficients, intraobserver, and interobserver agreement was assessed (ICC).Results: In total, 93 patients were included. The total CMS using the paper-based VAS, smiley face score, and NRS were 46.9 ± 19.4, 45.2 ± 18.5, and 45.0 ± 18.7. Correlations of the total scores of the different versions varied from 0.98 to 0.99. CMS-category versus CMS-smiley face score and CMS-category versus CMS-NRS pain were significantly different (P = .02 and P = .01). Good internal consistency (0.76-0.79) and acceptable inter- and intraobserver reliability were found (ICC: 0.89-0.97, 0.98-0.99; P < .001).Conclusions: The different answering scales for the subjective subscales within the CMS for pain, work, and recreational activity were not interchangeable on item level and significantly influenced the total CMS score. Differences were below the smallest detectable change and interpreted as not clinically relevant. Particularly on item level, data from different studies cannot be pooled and compared when different answering scales are being used. The inter- and intraobserver reliability were excellent.Level of Evidence: Level I, prospective cross-sectional study.
- Published
- 2021
11. Blount disease and familial inheritance in Ghana, area cross-sectional study
- Author
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Prosper Moh, Heleen M. Staal, Niels Jansen, Freek Hollman, Alexander P.A. Stegmann, Frans Bovendeert, Orthopedie, RS: CAPHRI - R3 - Functioning, Participating and Rehabilitation, MUMC+: MA AIOS Orthopedie (9), and MUMC+: MA Orthopedie (9)
- Subjects
Pediatrics ,medicine.medical_specialty ,Cross-sectional study ,media_common.quotation_subject ,growth ,CHILDHOOD ,CHILDREN ,Orthopaedics ,Ghana ,RJ1-570 ,03 medical and health sciences ,0302 clinical medicine ,HISTORY ,Genetic predisposition ,Familial predisposition ,Humans ,Osteochondrosis ,Medicine ,genetics ,030212 general & internal medicine ,Family history ,Exome sequencing ,media_common ,Bone Diseases, Developmental ,030222 orthopedics ,business.industry ,ONSET TIBIA VARA ,ETIOLOGY ,Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10] ,Cross-Sectional Studies ,Pediatrics, Perinatology and Child Health ,Blount disease ,Etiology ,Inheritance ,business - Abstract
ObjectiveThe objective of this study is to study familial inheritance for Blount disease to create better understanding of the aetiology of Blount disease.MethodsAfter reviewing patient files and conventional roentgenologic imaging, 139 patients with Blount disease were included in this cross-sectional study, of which 102 patients were interviewed. During the interviews, patient characteristics and family history were collected. Blood samples were taken from five patients and three families and a whole exome sequencing was performed.ResultsAlthough patients came from all over the country, 90% of the patients belonged to the Akan tribe. A positive family history was found in 63 families (62%), of which, almost two-third had a positive family history in a first-degree family member. In most of the cases (64%), the varus legs resolved over time. In 9%, severe bowing remained ‘just like the patient’. The results of the whole exome sequencing did not show a genetic predisposition.ConclusionThis study describes a large group of Blount patients. Because of the high numbers of positive family history and the centralisation of patients in the Akan region, a familial predisposition is suggested. Further genetic research is essential for better understanding of the possible multifactorial aetiology in Blount disease.
- Published
- 2021
12. Optimizing care on rotator cuff pathology
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Freek Hollman, van Rhijn, Lodewijk, Wolterbeek, N., Auw Yang, K.G., RS: CAPHRI - R3 - Functioning, Participating and Rehabilitation, and Orthopedie
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medicine.medical_specialty ,medicine.anatomical_structure ,business.industry ,shoulder ,Medicine ,degeneration ,Rotator cuff ,business ,rotator cuff ,biceps ,Surgery - Abstract
This dissertation was conducted to optimise the care of rotator cuff pathology and to offer some tools for the daily orthopaedic practice. Suggestions are made for optimising the treatment of degenerative rotator cuff tears, visualising shoulder pathology and accurately analysing results with the appropriate measuring instruments. The importance of identifying the source of pain in degenerative rotator cuff tears and the scientific evidence that justifies certain treatment options are emphasised. Rotator cuff tears, particularly in their degenerative form, are common in our population and understanding all aspects associated with these tears is of great importance in optimising shoulder function and keeping people physically active. This dissertation provides insight into the optimisation of diagnostics, treatment, aftercare and shoulder-specific patient outcome measures with regard to rotator cuff pathology.
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- 2021
13. W/M serrated osteotomy for infantile Blount's disease in Ghana: Short-term results
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L W van Rhijn, P. Moh, J. Korpisah, P. J. J. M. Rompa, Heleen M. Staal, A. H. Ismail, Freek Hollman, Promovendi PHPC, Orthopedie, MUMC+: MA Orthopedie (3), RS: CAPHRI - R3 - Functioning, Participating and Rehabilitation, MUMC+: MA Orthopedie (9), and MUMC+: MA AIOS Orthopedie (9)
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Male ,medicine.medical_specialty ,complications ,medicine.medical_treatment ,tibia vara ,Osteotomy ,Ghana ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,High tibial osteotomy ,Deformity ,medicine ,Internal fixation ,Humans ,Osteochondrosis ,Blount's disease ,In patient ,Tibia ,Child ,infantile ,Varus deformity ,030222 orthopedics ,Bone Diseases, Developmental ,business.industry ,General Medicine ,medicine.disease ,Surgery ,Treatment Outcome ,Child, Preschool ,Female ,medicine.symptom ,business ,Blount’s disease, complications, infantile, osteotomy, tibia vara ,osteotomy - Abstract
Purpose: The W/M serrated high tibial osteotomy is a not frequently described surgical technique for simultaneously correcting the varus and torsional deformity in patients with Blount’s disease. Without the need for internal fixation, this surgical treatment is well suited for developing countries. This study describes the short‑term results of the bilateral and unilateral W/M serrated osteotomy in patients with infantile Blount’s disease. Methods: Between May 2008 and January 2013, 52 patients were treated with uni‑ ( n = 22) or bi‑lateral ( n = 30) W/M serrated osteotomy of the proximal tibia due to a tibial varus deformity in two district hospitals in Ghana. Other causes than infantile Blount’s disease were excluded from the analysis. Pre‑ and post‑operative clinical and radiological measurements were done, and complications were monitored up to 12 weeks after surgery. Results: Seventeen patients (five males, 12 females; mean age 4.9 [standard deviation: 2.10]) were included, which underwent a total of 25 W/M serrated osteotomies. The femorotibial angle was corrected from 34.1° ([mean] range: 6 68°) to − 7.1° ([mean] range: −28–5°). Only one patient had developed a wound infection, and all reached full consolidation. Conclusions: The W/M serrated osteotomy seems a profitable alternative technique for treating the varus and torsional deformity in patients with Blount’s disease in the circumstances of developing countries. The short‑term outcomes are good and promising with a low complication rate and good consolidation. Long‑term follow‑up results of these patients are needed to observe possible complications. Level of Evidence: IV, therapeutic case series. Keywords: Blount’s disease, complications, infantile, osteotomy, tibia vara
- Published
- 2016
- Full Text
- View/download PDF
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