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To quantify the long-term prevalence of game-related Lisfranc trauma in college football on artificial turf and natural grass. 32 universities were evaluated over 10 competitive seasons across all Football Bowl Subdivision (FBS) conferences. Outcomes of interest included injury severity, injury category, primary type of injury, player and skill position, injury mechanism and situation, elective imaging and surgical procedures, and field conditions. Injury incidence rates (IIR) were calculated using injuries per 10 games = (number of injuries) number of games) × 10. Of the 1577 games documented, 783 games (49.7%) were played on a 3-layer artificial turf (≥9.0 lbs/ft2) infill system versus 794 games (50.3%) played on natural grass. In sum, 78 Lisfranc cases were documented with 34 (43.6%) occurring on artificial turf, and 44 (56.4%) on natural grass. MANOVAs indicated significant main effects by injury category (F3,74 = 6.439; P =.001), and injury mechanism (F5,72 = 3.372; P =.009) observed between surfaces, but not by injury severity (F2,75 = 0.720; P =.490), primary type of injury (F4,73 = 0.772; P =.547), overall player (F2,75 = 0.219; P =.804) and skill positions (F8,69 = 0.850; P =.563), injury situation (F10,67 = 1.030; P =.428), elective imaging and surgical procedures (F3,74 = 0.515; P =.673), or field conditions (F2,75 = 0.375; P =.688). Post hoc analyses indicated significantly greater incidences (P <.05) of Lisfranc trauma on natural grass attributed to shoe:surface interaction during noncontact play, and during no contact, foot rotation or planting. Ligament tears (n = 8; 57.1%), with minimal cases of subluxation/dislocations (n = 4; 28.6%) and fractures (n = 2; 14.3%) comprised grade 3 cases across both surfaces. In regards to Lisfranc trauma, a 3-layer, heavyweight artificial infill surface is as safe or safer than natural grass. The findings of this study may be generalizable only to this level of football competition. [ABSTRACT FROM AUTHOR]

Background: Hallux valgus (HV) is a common condition causing substantial morbidity. Radiographic assessment is the gold standard for grading severity but is not always feasible in clinical/research settings. HV line‐drawings, consisting of five drawings for each foot depicting a sequential increase in HV angle of 15°, have been clinically validated for self‐reporting severity. We aimed to undertake radiographic validation of this self‐report instrument. Methods: Adults aged ≥50 from four GP practices were sent a health survey. Responders self‐reported HV severity for each foot using the line‐drawing instrument. Those reporting foot pain in the last year had radiographs taken at a research clinic from which intermetatarsal, hallux abductus and hallux interphalangeal abductus angles were calculated. Ten feet were randomly selected for each HV line‐drawing grade for both feet. Associations between self‐reported HV line drawings and radiographic measurements were assessed using Spearman's ρ correlation coefficients, mean radiographic angle measurement (95% confidence interval) and one‐way analysis of variance. Results: Increasing HV line‐drawing grade was positively correlated with radiographic measurements for intermetatarsal and hallux abductus angles (Spearman's ρ = 0.602, p < 0.001; 0.821, p < 0.001, respectively). Hallux interphalangeal abductus angle showed an inverse correlation with increasing line‐drawing grade (−0.204, p = 0.053). Differences in radiographic measures between HV line drawing grades were significant for intermetatarsal (F = 13.98, p < 0.001) hallux abductus (F = 38.90, p < 0.001) but not hallux interphalangeal abductus angle (F = 2.21, p = 0.075). Conclusion: Grading HV severity by self‐reported HV line‐drawings provides a valid representation of deformity determined from radiographic measurements and is a useful screening/self‐reporting tool. [ABSTRACT FROM AUTHOR]

Background: Radiographic measurements are an essential tool to determine the appropriate surgical treatment and outcome for Hallux Valgus (HV). HV deformity is best evaluated by weight-bearing computed tomography (WBCT). The objective was (1) to assess the reliability of WBCT computer-assisted semi-automatic imaging measurements in HV, (2) to compare semi-automatic with manual measurements in the setting of an HV, and (3) to compare semi-automatic measurements between HV and control group.Methods: In this retrospective IRB (ID# 201904825) approved study, we assessed patients with hallux valgus deformity. The sample size calculation was based on the hallux valgus angle (HVA). Thus to obtain the 0.8 power, including 26 feet with HV in this study, was necessary. Our control group consisted of 19 feet from 19 patients without HV. Raw multiplanar data was evaluated using software CubeVue®. In the axial plane, hallux valgus angle (HVA), intermetatarsal angle (IMA), and interphalangeal angle (IPA) were measured. The semiautomatic 3D measurements were performed using the Bonelogic®Software. Inter-rater reliabilities were performed using ICC. Agreement between methods was tested using the Bland-Altman plots. The difference between Patologic and Control cases using semi-automatic measurements was assessed with the Wilcoxon signed-rank test. Alpha risk was set to 5% (α = 0.05). P ≤ 0.05 were considered significant.Results: Reliabilities utilizing ICC were over 0.80 for WBCT manual measurements and WBCT semi-automatic readings. Inter and intraobserver agreement for Manual and Semi-automatic WBCT measurements demonstrated excellent reliability.Conclusions: Semi-automatic measurements are reproducible and comparable to measurements performed manually. The software differentiated pathological from non-pathological conditions when subjected to semi-automatic measurements. The development of advanced semi-automatic segmentation software with minimal user intervention is essential for the establishment of big data and can be integrated into clinical practice, facilitating decision-making. [ABSTRACT FROM AUTHOR]

Metatarsalgia defined as pain at the plantar aspect of the forefoot. Intermetatarsal bursitis is considered one potential soft-tissue cause of metatarsalgia that is presumably under-estimated, under-investigated, and, consequently, often misdiagnosed. To assess the role of MRI in the elucidation of the cause of metatarsalgia in patients with different autoimmune disorders presenting primarily with this symptom and to present the accompanying clinical and radiological findings of intermetatarsal bursitis. Retrospective evaluation of the medical records of patients with different rheumatological conditions claiming primarily of pedal pains suggests metatarsalgia and who underwent, therefore, all magnetic resonance imaging between March 2010 and April 2018. Of them, six patients fulfilled these criteria and were diagnosed subsequently with intermetatarsal bursitis. Several underlying autoimmune conditions were diagnosed. All patients were clinically assessed by the squeeze test and radiologically investigated with MRI; three patients underwent additional sonography. All patients presented intermetatarsal bursitis as first disease manifestation. The number of involved bursae ranged from one to three on one side. The main MR findings were distension of the intermetatarsal bursa with increased signal intensity on T2-weighted and post-contrast fat saturation T1-weighted images. Most frequent locations were the second and third intermetatarsal spaces. The size of the intermetatarsal bursitis and its plantar extension were correlated in all patients. Intermetatarsal bursitis can potentially be the first manifestation of different rheumatological diseases. Awareness of this potential association as well as cognizance of its imaging findings can help for making a more accurate and prompt earlier diagnosis of the underlying disease changing also the therapeutic approach. [ABSTRACT FROM AUTHOR]

Background: Recurrence is relatively common after surgical correction of hallux valgus. Multiple factors are discussed that could have an influence in the loss of correction. The aim of this study was to determine preoperative radiological factors with an influence on loss of correction after distal chevron osteotomy for hallux valgus. Methods: Five hundred twenty-four patients who underwent the correction of a hallux valgus by means of distal chevron osteotomy at our institution between 2002 and 2012 were included. We assessed weightbearing x-rays at 4 time points: preoperatively, postoperatively, and after 6 weeks and 3 months. We investigated the intermetatarsal angle (IMA), the hallux valgus angle (HVA), the distal metatarsal articular angle (DMAA), joint congruity, and the position of the sesamoids. Results: At all points of the survey, significant correction of the IMA and HVA was detected. The IMA improved from 12.9 (± 2.8) to 4.5 (± 2.4) degrees and the HVA from 27.5 (± 6.9) to 9.1 (± 5.3) degrees. Loss of correction was found in both HVA and IMA during follow-up with a mean of 4.5 and 1.9 degrees, respectively. Loss of correction showed a linear correlation with preoperative IMA and HVA, and a correlation between preoperative DMAA and sesamoid position. Conclusion: The chevron osteotomy showed significant correction for HVA, IMA, and DMAA. Preoperative deformity, in terms of IMA, HVA, DMAA, and sesamoid position, correlated with the loss of correction and could be assessed preoperatively for HVA and IMA. Loss of correction at 3 months persisted during the follow-up period. Level of Evidence: Level IV, retrospective case series. [ABSTRACT FROM AUTHOR]

An intermetatarsal coalition is an uncommon pathologic entity, previously reported in published studies as being primarily unilateral, most commonly between the first and second metatarsals and less so between the third and fourth metatarsals. We report an unusual case of a bilateral coalition of the third and fourth metatarsals in a 43-year-old male who presented with nonspecific dorsolateral foot pain. Conservative therapy initially failed, and resolution of pain was noted bilaterally after coalition resection. [ABSTRACT FROM AUTHOR]

The chevron osteotomy is a standard procedure by which bunions are corrected. One of us routinely performs a distal oblique osteotomy, which, to the best of our knowledge, has not been described for the correction of bunion deformities. The purpose of the present study was to compare the short- and medium-term results of the distal oblique and chevron osteotomies for bunion correction. We performed a retrospective clinical and radiographic comparison of patients who had undergone a distal oblique or chevron osteotomy for the correction of bunion deformity. In addition, a prospective patient satisfaction survey was undertaken. A total of 55 patients were included in the present study and were treated from January 2012 to November 2014. Of the 55 patients, 27 (49.2%) were in the chevron group and 28 (50.8%) in the distal oblique group. Radiographically, no statistically significant difference was found between the 2 groups with respect to postoperative first intermetatarsal angle ( p < .0001) and hallux valgus angle ( p < .0001), but a greater change was found in the intermetatarsal angle in the distal oblique group ( p = .467). Prospective patient satisfaction scores were available for 33 patients (60%), 16 (29%) in the chevron group and 17 (31%) in the distal oblique group. When converting the satisfaction score to a numerical score, the chevron group scored 3.3 ± 1.1 and the distal oblique group scored 3.2 ± 0.8 ( p = .812). We found that the distal oblique osteotomy used in the present study is simple and reliable and showed radiographic correction and patient satisfaction equivalent to those in the chevron osteotomy. [ABSTRACT FROM AUTHOR]

Hallux valgus is a common cause of foot pain and deformity in the adult and adolescent population, which often requires surgical treatment when nonsurgical treatments fail. When the condition is associated with an increased intermetatarsal angle, a surgical technique using a proximal first metatarsal osteotomy is often indicated. A proximal opening wedge osteotomy stabilized with a wedge and plate configuration offers a stable, reliable means to correct the increased intermetatarsal angle. This article describes a technique for surgical correction of hallux valgus with an increased metatarsal angle, using a 3-incision technique that includes: (1) a medial bunionectomy with capsular imbrication, (2) a lateral soft-tissue release, and (3) a proximal metatarsal osteotomy fixed with a 4-hole L-shaped plate with a wedge spacer. [Copyright &y& Elsevier]

The purpose of this investigation was to conduct a prospective trial to assess the effectiveness of a 4% sclerosing alcohol injection in a small group of patients with intermetatarsal neuromas who had failed previous conservative therapies including corticosteroid injections. Six patients with 8 neuromas were followed for a mean 346 days. A weekly series of 3–9 injections containing 1 mL of the 4% alcohol sclerosing solution were given based on patient response to treatment. Pre- and posttreatment surveys consisting of both objective and subjective findings including a visual analog pain scale were collected. The average pretreatment visual analog pain rating was 7.5 ± 1.14. The average posttreatment visual analog pain rating was 1.38 ± 2.39 with an average reduction of 6.13. The average reported improvement in symptoms was 73%. Five of the 6 patients would recommend the treatment to a friend or family member. No complications were encountered. Two neuromas in 2 patients failed the sclerosing injection course: 1 ultimately responded to antiinflammatory use and the other underwent excision. [Copyright &y& Elsevier]

Background: Hallux valgus deformity is the lateral deviation of the metatarsophalangeal (MTP) joint and is the most common pathology of the great toe, affecting 2%-4% of the population. It is commonly believed that the condition progresses over time both in the magnitude of deformity and development of arthritic changes. To our knowledge, there are rare studies describing the rate of deformity progression and the development of arthritic changes. Our aim is to quantify the progression of hallux valgus and associated arthritic changes in an adult population using radiographs., Methods: Patients who are 18 years of age and older (mean age: 61.7 years and range: 18.6-94.2) who presented to our institutions between January 1, 2004, and December 1, 2019, were included. Patients were included in the study if they had hallux valgus on weight-bearing radiographs and two such radiographs at least six months apart. Hallux valgus angle (HVA), intermetatarsal angle (IMA), metatarsophalangeal (MTP) arthritis, tarsometatarsal (TMT) osteoarthritis, Hardy-Clapham sesamoid position, and round sign were collected per patient in the initial and final radiographs. Included cases were first studied together in a whole group. Then, cases were separated into three groups based on the time between initial and final radiographs., Results: A total of 52 radiographic records for 43 patients were included. HVA and IMA progress with time; however, progression does not follow a direct relationship with the time elapsed between initial and final radiographs (p = 0.92 and p = 0.35, respectively). The progression of TMT osteoarthritis, sesamoid position, and round sign do not show a dependence on the time elapsed (p = 0.20, p = 0.11, and p = 0.42, respectively). An increase of one sesamoid unit position over baseline is associated with a 0.85-degree increase in IMA. A one-unit progression of sesamoid position at baseline raises the odds of MTP osteoarthritis progression at the follow-up visit by 2.14 (OR = 2.14, p = 0.0007, CI = [1.35, 3.83]). A HVA increase of one degree increases the odds of TMT osteoarthritis progression at follow-up by a factor of 1.17 (OR = 1.17, p = 0.0005, CI = [1.07, 1.34]). Patients with MTP arthritis at the initial visit have 3.77 times higher odds of round sign progression on their follow-up visit (OR = 3.77, p = 0.027, CI = [1.16, 13.13])., Discussion: Hallux valgus progression can be quantified. Upon their first visit, a patient's hallux valgus parameters can be utilized to demonstrate expected progression. Progression of the deformity and arthritic changes is slow. Nonetheless, the results should be considered by surgeons and patients when developing a treatment plan with patients., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2022, Kukushliev et al.)

Objective: Central metatarsalgia relates to abnormalities of the second, third, and fourth metatarsals and their respective metatarsophalangeal joints. A variety of disorders present with central forefoot pain; they range from traumatic lesions (acute or chronic repetitive), inflammatory and infective disorders, nonneoplastic soft-tissue lesions, and benign tumors to malignant lesions. Patients often present with symptoms of localized pain in the forefoot that worsens on weight bearing (walking or running), which can be sharp or dull and often is perceived as a lump felt inside or underneath the foot and described as walking on a marble or pebbles. These patients are labeled as having central metatarsalgia and are further evaluated with ultrasound or MRI to establish a diagnosis., Conclusion: In this article, we review metatarsal and intermetatarsal lesions of the foot that present with central forefoot pain and a sensation of walking on pebbles, focusing on conditions mimicking Morton neuroma clinically or on imaging. We also briefly review some other plantar lesions and arthropathy that can present with awareness of lump underneath the foot.