Dorsal calcaneal wedge removal in zadek osteotomy: A cadaveric study.

BACKGROUND: Insertional Achilles tendinopathy (IAT) is a common pathology with multiple surgical interventions available for treatment. The Zadek, dorsal closing wedge calcaneal osteotomy (ZO) has been demonstrated to be effective treatment of IAT. There have been various recommendations in the literature as to what measurement of wedge removal should be considered ideal to produce greatest postoperative range of motion (ROM), thus postoperative biomechanical potential. Accordingly, the purpose of this cadaveric study was to assess the range of motion achieved after various measurements of wedge removal by ZO. METHODS: The ZO was performed on six cadaveric specimens. A 7.5 mm and 15 mm wedge osteotomy was marked and sequentially completed on each specimen. Lateral fluoroscopic imaging was utilized to take preoperative and postoperative ROM measurements for each osteotomy. Dorsiflexion (DF) and plantarflexion (PF) ROM arcs were measured for each wedge size and compared by t-test. Effect sizes were calculated by Cohen's d analysis. RESULTS: Maximal DF was 110.87 ± 12.97 deg in the pre-osteotomy state. Removal of a 7.5 mm wedge improved DF by 8 deg to a mean 102.93 ± 13.81 deg (p = 0.08). Removal of a 15 mm wedge improved DF by 16 deg to a mean 95.96 ± 11.41 deg (p = 0.003). Cohen's d and effect size calculation demonstrated a 7.5 mm wedge to have a small effect on DF, while a 15 mm wedge had a medium effect (0.29, 0.52 respectively). Maximal PF did not change significantly amongst the pre-osteotomy, 7.5 mm wedge, or 15 mm wedge positions. ICC was 0.96. CONCLUSION: Based on the results presented in this study, removal of a 15 mm wedge with ZO yields significant and greater improvement in ROM than a 7.5 mm wedge. We hope the current study will better inform preoperative planning for ZO. STUDY TYPE: Prospective Cadaver Study. LEVEL OF EVIDENCE: V.

Percutaneous vs Open Zadek Osteotomy for Treatment of Insertional Achilles Tendinopathy and Haglund's Deformity: A Systematic Review.

Background: Percutaneous Zadek osteotomy (ZO) has emerged as a surgical treatment of insertional Achilles tendinopathy (IAT) over the last decade. Existing literature is limited regarding the comparison of this approach with the more established, open ZO technique. This systematic review aims to evaluate and compare the current data on open vs percutaneous ZO approaches to help set evidence-based guidelines. Methods: A systematic literature search was performed using the keywords (Zadek osteotomy) OR (Keck and Kelly osteotomy) OR (dorsal closing wedge calcaneal osteotomy) OR (Haglund Deformity) OR (Haglund Syndrome) OR (Insertional Achilles Tendinopathy) and MeSH terms Osteotomy, Calcaneus, Syndrome, Insertional, Achilles tendon, and Tendinopathy. Our search included the following databases: PubMed, Embase, and the Cochrane Library. The PRISMA protocol and the Cochrane Handbook guidelines were followed. All studies included were published from 2009 to 2024 and included the use of open or percutaneous approaches of ZO for the treatment of IAT with at least a 12-month follow-up. The MINORS score criteria were used to evaluate the strength and quality of studies. Results: A total of 17 studies were reviewed, including 611 subjects and 625 ZO procedures. Of these procedures, 81 (11%) subjects had a percutaneous and 544 (89%) subjects had an open ZO. The mean follow-up time was 16.1 months for patients treated with percutaneous ZO and 36.1 months for patients treated with open ZO. Both open and percutaneous studies included in this review showed postoperative improvements in AOFAS, FFI, VISA-A, and VAS scores in patients with IAT. The reported complication rate was 5.8% among patients treated with percutaneous ZO and 10.2% among patients treated with open ZO. Conclusion: Percutaneous ZO is an emerging approach with substantially fewer documented cases compared with the open ZO. Both percutaneous and open ZO appear to be relatively effective treatments for insertional Achilles tendinopathy with Haglund's deformity. The lower complication rates reported for percutaneous ZO is encouraging. Further investigation with more subjects undergoing percutaneous ZO is clearly needed.

How Have Patient Out-of-pocket Costs for Common Outpatient Orthopaedic Foot and Ankle Surgical Procedures Changed Over Time? A Retrospective Study From 2010 to 2020.

BACKGROUND: Out-of-pocket (OOP) costs can be substantial financial burdens for patients and may even cause patients to delay or forgo necessary medical procedures. Although overall healthcare costs are rising in the United States, recent trends in patient OOP costs for foot and ankle orthopaedic surgical procedures have not been reported. Fully understanding patient OOP costs for common orthopaedic surgical procedures, such as those performed on the foot and ankle, might help patients and professionals make informed decisions regarding treatment options and demonstrate to policymakers the growing unaffordability of these procedures. QUESTIONS/PURPOSES: (1) How do OOP costs for common outpatient foot and ankle surgical procedures for commercially insured patients compare between elective and trauma surgical procedures? (2) How do these OOP costs compare between patients enrolled in various insurance plan types? (3) How do these OOP costs compare between surgical procedures performed in hospital-based outpatient departments and ambulatory surgical centers (ASCs)? (4) How have these OOP costs changed over time? METHODS: This was a retrospective, comparative study drawn from a large, longitudinally maintained database. Data on adult patients who underwent elective or trauma outpatient foot or ankle surgical procedures between 2010 and 2020 were extracted using the MarketScan Database, which contains well-delineated cost variables for all patient claims, which are particularly advantageous for assessing OOP costs. Of the 1,031,279 patient encounters initially identified, 41% (427,879) met the inclusion criteria. Demographic, procedural, and financial data were recorded. The median patient age was 50 years (IQR 39 to 57); 65% were women, and more than half of patients were enrolled in preferred provider organization insurance plans. Approximately 75% of surgical procedures were classified as elective (rather than trauma), and 69% of procedures were performed in hospital-based outpatient departments (rather than ASCs). The primary outcome was OOP costs incurred by the patient, which were defined as the sum of the deductible, coinsurance, and copayment paid for each episode of care. Monetary data were adjusted to 2020 USD. A general linear regression, the Kruskal-Wallis test, and the Wilcoxon-Mann-Whitney test were used for analysis, as appropriate. Alpha was set at 0.05. RESULTS: For foot and ankle indications, trauma surgical procedures generated higher median OOP costs than elective procedures (USD 942 [IQR USD 150 to 2052] versus USD 568 [IQR USD 51 to 1426], difference of medians USD 374; p < 0.001). Of the insurance plans studied, high-deductible health plans had the highest median OOP costs. OOP costs were lower for procedures performed in ASCs than in hospital-based outpatient departments (USD 645 [IQR USD 114 to 1447] versus USD 681 [IQR USD 64 to 1683], difference of medians USD 36; p < 0.001). This trend was driven by higher coinsurance for hospital-based outpatient departments than for ASCs (USD 391 [IQR USD 0 to 1136] versus USD 337 [IQR USD 0 to 797], difference of medians USD 54; p < 0.001). The median OOP costs for common outpatient foot and ankle surgical procedures increased by 102%, from USD 450 in 2010 to USD 907 in 2020. CONCLUSION: Rapidly increasing OOP costs of common foot and ankle orthopaedic surgical procedures warrant a thorough investigation of potential cost-saving strategies and initiatives to enhance healthcare affordability for patients. In particular, measures should be taken to reduce underuse of necessary care for patients enrolled in high-deductible health plans, such as shorter-term deductible timespans and placing additional regulations on the implementation of these plans. Moreover, policymakers and physicians could consider finding ways to increase the proportion of procedures performed at ASCs for procedure types that have been shown to be equally safe and effective as in hospital-based outpatient departments. Future studies should extend this analysis to publicly insured patients and further investigate the health and financial effects of high-deductible health plans and ASCs, respectively. LEVEL OF EVIDENCE: Level III, economic and decision analysis.

Evaluating ChatGPT Performance on the Orthopaedic In-Training Examination.

Background: Artificial intelligence (AI) holds potential in improving medical education and healthcare delivery. ChatGPT is a state-of-the-art natural language processing AI model which has shown impressive capabilities, scoring in the top percentiles on numerous standardized examinations, including the Uniform Bar Exam and Scholastic Aptitude Test. The goal of this study was to evaluate ChatGPT performance on the Orthopaedic In-Training Examination (OITE), an assessment of medical knowledge for orthopedic residents. Methods: OITE 2020, 2021, and 2022 questions without images were inputted into ChatGPT version 3.5 and version 4 (GPT-4) with zero prompting. The performance of ChatGPT was evaluated as a percentage of correct responses and compared with the national average of orthopedic surgery residents at each postgraduate year (PGY) level. ChatGPT was asked to provide a source for its answer, which was categorized as being a journal article, book, or website, and if the source could be verified. Impact factor for the journal cited was also recorded. Results: ChatGPT answered 196 of 360 answers correctly (54.3%), corresponding to a PGY-1 level. ChatGPT cited a verifiable source in 47.2% of questions, with an average median journal impact factor of 5.4. GPT-4 answered 265 of 360 questions correctly (73.6%), corresponding to the average performance of a PGY-5 and exceeding the corresponding passing score for the American Board of Orthopaedic Surgery Part I Examination of 67%. GPT-4 cited a verifiable source in 87.9% of questions, with an average median journal impact factor of 5.2. Conclusions: ChatGPT performed above the average PGY-1 level and GPT-4 performed better than the average PGY-5 level, showing major improvement. Further investigation is needed to determine how successive versions of ChatGPT would perform and how to optimize this technology to improve medical education. Clinical Relevance: AI has the potential to aid in medical education and healthcare delivery.

Republication of "Treatment of Hallux Valgus Deformity Using a Suture Button Device: A Preliminary Report".

Background: Hallux valgus (HV) is commonly treated with proximal or distal first metatarsal osteotomy. Despite good correction, these procedures have inherent risks such as malunion, nonunion, metatarsal shortening, loss of fixation, and avascular necrosis. Suture button fixation has been used for HV treatment. It avoids the risks of corrective osteotomies while maintaining reduction of the intermetatarsal angle (IMA). The goal of this study was to assess the radiographic and functional outcomes of patients undergoing HV correction with a distal soft tissue procedure and proximal suture button fixation. Methods: The authors retrospectively reviewed the charts and radiographs of 22 patients who had undergone HV correction using a distal soft tissue correction and proximal fixation with a miniature suture button device (Mini TightRope; Arthrex, Inc, Naples, FL). Mean follow-up was 27.7 months. The IMA, hallux valgus angle (HVA), and sesamoid station were measured on radiographs obtained preoperatively as well as in the immediate postoperative period and at final follow-up. Preoperative and postoperative Short Form-36 (SF-36) and Foot and Ankle Ability Measure (FAAM) scores were collected. Postoperative complications, and any additional operative procedures performed were also recorded. Results: The mean preoperative IMA and HVA were 16.9 and 32.6 degrees, respectively. The mean immediate postoperative IMA was 5.2 degrees (P < .0001) and the mean HVA was 9.8 degrees (P < .0001). At final follow-up, the mean IMA was 8.2 degrees (P < .0001) and the mean HVA was 16.7 degrees (P < .0001). The average change in HVA from preoperative to final follow-up was 16.0 degrees and the average change in IMA from preoperative to final follow-up was 8.6 degrees (P < .0001). Sesamoid station assessment at the 2-week follow-up showed that 22 patients (100%) were in the normal position group; at final follow-up, 17 patients (77%) had normal position and 5 patients (23%) had displaced position. Although there were no clinically symptomatic recurrences, asymptomatic radiographic recurrence was noted in 5 patients (23%) who had a final HVA >20 degrees. All components of the FAAM and the SF-36 showed improvement from preoperative to final follow-up, although these changes were not statistically significant. Three patients experienced complications, including an intraoperative second metatarsal fracture, a postoperative second metatarsal stress fracture, and a postoperative deep vein thrombosis. Conclusion: The use of a distal soft tissue procedure in conjunction with proximal suture button fixation is a safe and effective procedure for treating symptomatic HV deformity. Our results show that this technique can correct the IMA, HVA, and sesamoid station without the need for osteotomy. Level of evidence: Level IV.

Opioid Usage After Hallux Valgus Correction Surgery.

BACKGROUND: Given the lack of objective data on opioid use and the difficulty of addressing a patient's postoperative pain, we sought to quantify patient's narcotic use after hallux valgus surgery. The purpose of our study was to determine the average quantity and type of postoperative opioids consumed after hallux valgus surgery and to assess potential predictive factors for increased opioid consumption. METHODS: At the preoperative visit, patients were consented and completed a demographical questionnaire. Data were collected from the operative record, 2, 6, and 12-week postoperative visits. Type and number of pills prescribed were recorded as well as number of pills consumed at each postoperative visit. A logistic regression was performed to determine the average quantity consumed postoperatively and any statistically significant correlations. RESULTS: The average number of opioid pills collectively consumed at the 2-week and 12-week postoperative visit was 20 and 23, respectively. At the 2-week postoperative visit, only patient body mass index (BMI) showed a correlation with increased opioid use. CONCLUSION: Patients consumed an average of 23 of 40 (57.5%) narcotic pain pills prescribed after hallux valgus reconstruction surgery through the 12-week postoperative period. Owing to the opioid epidemic and potential for narcotic diversion, surgeons should counsel their patients on proper nonopioid postoperative pain management. LEVEL OF EVIDENCE: II Therapeutic.

Summary Report of the Arthritis Foundation and the American Orthopaedic Foot & Ankle Society's Symposium on Targets for Osteoarthritis Research: Part 1: Epidemiology, Pathophysiology, and Current Imaging Approaches.

This first of a 2-part series of articles recounts the key points presented in a collaborative symposium sponsored jointly by the Arthritis Foundation and the American Orthopaedic Foot & Ankle Society with the intent to survey the state of scientific knowledge related to incidence, diagnosis, pathologic mechanisms, and injection treatment options for osteoarthritis (OA) of the foot and ankle. A meeting was held virtually on December 3, 2021. A group of experts were invited to present brief synopses of the current state of knowledge and research in this area. Part 1 overviews areas of epidemiology and pathophysiology, current approaches in imaging, diagnostic and therapeutic injections, and genetics. Opportunities for future research are discussed. The OA scientific community, including funding agencies, academia, industry, and regulatory agencies, must recognize the needs of patients that suffer from arthritis of foot and ankle. The foot and ankle contain a myriad of interrelated joints and tissues that together provide a critical functionality. When this functionality is compromised by OA, significant disability results, yet the foot and ankle are generally understudied by the research community. Level of Evidence: Level V - Review Article/Expert Opinion.

Summary Report of the Arthritis Foundation and the American Orthopaedic Foot & Ankle Society's Symposium on Targets for Osteoarthritis Research: Part 2: Treatment Options.

This second of a 2-part series of articles recounts the key points presented in a collaborative symposium sponsored jointly by the Arthritis Foundation and the American Orthopaedic Foot & Ankle Society with the intent to survey current treatment options for osteoarthritis (OA) of the foot and ankle. A meeting was held virtually on December 10, 2021. A group of experts were invited to present brief synopses of the current state of knowledge and research in this area. Topics were chosen by meeting organizers, who then identified and invited the expert speakers. Part 2 overviews the current treatment options, including orthotics, non-joint destructive procedures, as well as arthroscopies and arthroplasties in ankles and feet. Opportunities for future research are also discussed, such as developments in surgical options for ankle and the first metatarsophalangeal joint. The OA scientific community, including funding agencies, academia, industry, and regulatory agencies, must recognize the importance to patients of addressing the foot and ankle with improved basic, translational, and clinical research. Level of Evidence: Level V, review article/expert opinion.

Tranexamic Acid in Foot and Ankle Surgery: A Topical Review and Value Analysis.

Tranexamic acid (TXA) has become a commonly used perioperative intervention in total joint arthroplasty, shoulder and knee arthroscopy, and spinal procedures in order to minimize blood loss, hematoma formation, hemarthrosis, and wound healing complications. There is a potential role for TXA use in foot and ankle procedures, with limited studies suggesting a potential benefit in minimizing postoperative wound complications and blood loss without an increased risk of thromboembolic events. In light of the profound clinical and financial impact of TXA use in other orthopaedic subspecialties and the early successes in foot and ankle surgery, we aim to provide more information about TXA and its use in foot and ankle surgery. Therefore, the purpose of this review is to perform a comprehensive literature review on the topic of TXA use in foot and ankle procedures in order to describe the pertinent available literature on the use of TXA in orthopaedic surgery and its implications specifically in foot and ankle surgery. It is our aim to identify potential benefits and shortcomings in the available evidence on TXA use for foot and ankle surgery in hopes to (1) best inform foot and ankle surgeons where beneficial and safe and (2) inspire further research on this topic as it relates to clinical management for foot and ankle patients.Levels of Evidence: Level IV.

Adult Acquired Flatfoot Deformity.

Adult acquired flatfoot deformity (AAFD) is a condition commonly seen by orthopaedic surgeons. Posterior tibial tendon dysfunction is thought to be the initial pathoanatomic etiology that leads to this deformity. Successful resolution of the pain associated with AAFD can be achievable with nonsurgical methods. Patients who continue to have pain or functional limitations despite nonsurgical treatment can find improvement with appropriately selected surgical interventions. This article addresses new advances in treatment based on the stage of AAFD and will identify areas of continued development with a focus on surgical management. The literature continues to evolve as demonstrated by a recent update regarding the nomenclature and treatment of this condition to progressive collapsing flatfoot deformity. Future goals of research include understanding the natural history of the disease, from asymptomatic to symptomatic, and studying a wide array of newer treatments and implants that have not been prospectively evaluated.

Hallux Valgus Deformities: Preferred Surgical Repair Techniques and All-Cause Revision Rates.

INTRODUCTION: Hallux valgus is a commonly treated condition by foot and ankle surgeons with more than 200 different described correction techniques. Recurrence rates range from 5% to 50%, with increasing support of the theory that arthrodesis procedures may have a lower recurrence rate than osteotomies. Arthrodesis procedures to the first metatarsophalangeal (MTP) joint or tarsometatarsal (TMT) joint for correction of hallux valgus deformity are becoming more commonly utilized. The purpose of this study is to investigate the surgical incidence and revision rates of hallux valgus deformities corrected by arthrodesis compared to osteotomy in the state of South Carolina. METHODS: The South Carolina Revenue and Fiscal Affairs Office was queried from 2000 to 2017 to identify all surgically treated hallux valgus deformities. Data extraction included patient demographics, ICD-9 diagnoses, CPT procedure codes, and dates of surgery. A logistic regression model was used for statistical inference. RESULTS: A total of 22 199 feet had surgical treatment for hallux valgus during this time period, with 20 422 (92.0%), 592 (2.7%), and 1185(5.3%) receiving an osteotomy, arthrodesis, or other procedure at initial treatment, respectively. There was an all-cause revision rate of 5.6% in the osteotomy group and 6.4% in the arthrodesis group. Demographic factors such as female sex, white race, and surgery pre-2010 were associated with higher revision rates. Multiple comorbidities were correlated with higher revision rates such as tobacco use, hypothyroidism, osteoarthritis, recurrent dislocations, hallux rigidus, lesser toe deformities, metatarsus varus, and talipes cavus. CONCLUSION: Despite the recent increase in arthrodesis procedures for the treatment of hallux valgus deformity, our results suggest that osteotomy procedures are more commonly performed and there is no difference in all-cause revision surgery. However, there are multiple patient demographics and comorbidities that are associated with higher rates of revision surgery and should be considered and discussed during the preoperative planning period. LEVEL OF EVIDENCE: Level IV.

Tranexamic Acid in Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis.

BACKGROUND: Hemarthrosis after anterior cruciate ligament (ACL) reconstruction procedures can delay rehabilitation and have toxic effects on the cartilage and synovium. Tranexamic acid is widely used in adult reconstruction procedures; however, its use in ACL reconstruction is a novel topic of study. PURPOSE: To analyze the available literature on hemarthrosis, pain, functional outcomes, and complications after administration of tranexamic acid in ACL reconstruction procedures. STUDY DESIGN: Meta-analysis. METHODS: A literature search was performed to retrieve randomized controlled trials examining the use of tranexamic acid at the time of ACL reconstruction procedures. The studied outcomes included postoperative joint drain output, hemarthrosis grade, visual analog scale scores for pain, range of motion, Lysholm score, postoperative rates of deep venous thrombosis, and pulmonary embolism. Outcomes were pooled to perform a meta-analysis. RESULTS: Five prospective randomized controlled trials met inclusion criteria for analysis. Four studies administered intravenous tranexamic acid in bolus or infusion form before ACL reconstruction, while 2 studies administered tranexamic acid via intra-articular injection. Specifically, tranexamic acid was administered intravenously (preoperative 15-mg/kg bolus 10 minutes before tourniquet inflation with or without 10 mg/kg/h for 3 hours postoperatively) or intra-articularly (10 mL [100 mg/mL] intraoperatively), and 1 study consisted of tranexamic acid administration in combined intravenous and intra-articular forms (15-mg/kg bolus 10 minutes before tourniquet inflation and intra-articular 3 g 10 minutes before tourniquet deflation). Tranexamic acid use in ACL reconstruction cases resulted in a mean reduction of 61.5 mL in postoperative drain output at 24 hours (95% CI, -95.51 to -27.46; P = .0004), lower hemarthrosis grade (P < .00001), improved Lysholm scores, and reduction in visual analog scale scores for pain (-1.96 points; 95% CI, -2.19 to -1.73; P < .00001) extending to postoperative week 6. Range of motion was improved in the immediate postoperative period, and the need for joint aspiration within 2 weeks was reduced (P < .001). There was no difference in venous thromboembolic event rate between the experimental and control groups. CONCLUSION: The use of intravenous tranexamic acid in ACL reconstruction surgery results in reduced joint drain output and hemarthrosis and improved pain scores and range of motion in the initial postoperative period without increased complications or thromboembolic events.

18-Year Operative Incidence and Cost Analysis of the Treatment of Adult Acquired Flatfoot Deformity.

BACKGROUND: Adult acquired flatfoot (AAFD) is commonly treated by foot and ankle surgeons. Despite how commonly this disease presents, its incidence and economic impact have yet to be defined. We hypothesized that the operative incidence of AAFD and its economic burden would increase over the time period 1996 to 2014. METHODS: The South Carolina database was queried for data from acute care and ambulatory surgery centers. Bivariate descriptive statistics were used to analyze the data. Operative incidence was calculated and demographics and medical comorbidities of patients who progressed to operative intervention were analyzed. Costs associated with operative care episodes were calculated to determine the economic burden. RESULTS: A total of 1299 patients underwent AAFD corrective surgery between 1996 and 2014. Patients who underwent surgery for AAFD were most likely to be white, female, and in their fourth, fifth, and sixth decade of life. Operative incidence for AAFD rose from 0.26 per 100 000 covered lives in 1996 to 3.04 in 2014. The total health care costs associated with patients who underwent surgery for AAFD increased from $57 395.33 in 1996 to $6 859 723.60 in 2014. CONCLUSIONS: This data demonstrate that patients most commonly undergoing operative intervention for AAFD were white, female, and in their fourth, fifth, or sixth decade of life. There has been a significant increase in operative incidence, which may help direct attention to further exploration of outcome data in these patient populations, associated treatment costs, and preventative treatment options. LEVEL OF EVIDENCE: Level III, retrospective comparative study.

Minimally Invasive Dorsal Cheilectomy and Hallux Metatarsal Phalangeal Joint Arthroscopy for the Treatment of Hallux Rigidus.

BACKGROUND: Hallux rigidus (HR) is a common source of forefoot pain and disability. For those who fail nonoperative treatment, minimally invasive dorsal cheilectomy (MIDC) is an increasingly popular alternative to the open approach with early positive results. Early failures may be due to lose bone debris from the MIDC as well as other intra-articular pathology that cannot be addressed with MIDC alone. Metatarsophalangeal (MTP) arthroscopy can be used in addition to MIDC to assess the joint after MIDC and address any intra-articular pathology while still maintaining the benefits of minimally invasive surgery. We report our clinical outcomes following MIDC combined with MTP arthroscopy. METHODS: From November 2017 to July 2020, a retrospective analysis of all MIDC cheilectomies with MTP arthroscopy performed by the 2 senior authors was done. Wound complications, infections, revision rates, need for future surgery, conversion to fusion rates, pre- and postoperative range of motion, visual analog scale (VAS) scores, time to return to normal shoe, intraoperative arthroscopic findings, and operative time were collected. Follow-up average was 16.5 months (range 3-33 months). RESULTS: A total of 20 patients were included with an average follow-up of 16.5 months. The average VAS score improved from 7.05 preoperatively to 0.75 postoperatively (P < .05). Average range of motion in dorsiflexion increased from 32 to 48 degrees (P < .05) and plantarflexion increased from 15 to 19 degrees plantarflexion (P < .05). All patients were weightbearing as tolerated immediately after surgery in a postoperative shoe and transitioned to a regular shoe at average of 2.1 weeks. We had no wound infections, wound complications, revision surgeries, tendon injuries or nerve damage. One patient required conversion to a fusion 3 years after the index procedure. Average tourniquet time was 30.39 minutes (range 17-60 minutes) and total average operating room time was 59.7 minutes (range 40-87 minutes). On arthroscopic evaluation of the MTP joint after MIDC, 100% of patients had bone debris, 100% had synovitis, 10% had loose bodies, and 30% had large cartilage flaps within the joint. CONCLUSION: MIDC and first MTP joint arthroscopy for treatment of hallux rigidus provide improved pain relief with minimal complications while still maintaining the benefits touted for minimally invasive operative procedures. Additionally, we have shown a high rate of intra-articular debris along with intra-articular pathology such as synovitis, loose chondral flaps, and loose bodies that exist after MIDC. This combined procedure has the potential for improving patient outcomes and may minimize risk of future revision surgeries compared with MIDC alone. LEVEL OF EVIDENCE: Level IV, case series study.

Surgical Strategies: Necrotizing Fasciitis of the Foot and Ankle Treated With Dermal Regeneration Matrix for Limb Salvage.

Although necrotizing fasciitis is a life-threatening entity that needs expeditious treatment, cases involving the lower extremity are less commonly encountered than in the upper extremity. Surgical intervention is often required and likely lead to amputation (below-knee or above-knee) vs debridement in the lower extremity.Coverage options in the foot and ankle after serial debridements can present many challenges for limb salvage. Patients are often left with large soft tissue defects requiring coverage with a subsequent increase in relative morbidity. Treatment options for coverage in these cases include negative-pressure wound therapy, split-thickness skin grafting, free flap coverage, or higher-level amputation. In the diabetic population, who present with a lower extremity necrotizing infection, limb salvage is often a challenge given the multiple comorbidities associated with these patients including peripheral vascular disease, immunocompromised state, and neuropathy. Optimal treatment strategies for these necrotizing infections in the foot and ankle remain uncertain.We offer a technique tip for utilization of a dermal regeneration matrix to allow coverage of large soft tissue defect with exposed tendon and/or bone without the need for free flap coverage or higher-level amputation, thus allowing for an additional limb salvage option.Level of Evidence: Level V, expert opinion.

Plantar Medial Avulsion Fracture of the Calcaneus With Acute Tarsal Tunnel: Case Report and Technique Tip.

Level of Evidence: Level V, expert opinion.

Return to Sports and Activity After Total Ankle Arthroplasty and Arthrodesis: A Systematic Review.

BACKGROUND: There is no consensus regarding participation in sports and recreational activities following total ankle replacement (TAR) and ankle arthrodesis (AA). This systematic review summarizes the evidence on return to sports and activity after operative management with either TAR or AA for ankle osteoarthritis (OA). METHODS: A literature search of MEDLINE, EMBASE, CINAHL, and Cochrane Library databases was performed. Risk of bias of included studies was assessed using Methodological Index for Non-Randomized Studies (MINORS) criteria. Included studies reported sport and activity outcomes in patients undergoing TAR and AA, with primary outcomes being the percentage of sports participation and level of sports participation. RESULTS: Twelve studies met inclusion criteria for analysis. There were 1270 ankle procedures, of which 923 TAR and 347 AA were performed. The mean reported patient age was 59.2 years and the mean BMI was 28 kg/m2. The mean follow-up was 43 months. Fifty-four percent of patients were active in sports preoperatively compared with 63.7% postoperatively. The mean preoperative activity participation rate was 41% in the TAR cohort, but it improved to 59% after TAR, whereas the preoperative activity participation rate of 73% was similar to the postoperative rate of 70% in the AA cohort. The most common sports in the TAR and AA groups were swimming, hiking, cycling, and skiing. CONCLUSION: Participation in sports activity was nearly 10% improved after operative management of ankle OA with TAR and remains high after AA. The existing literature demonstrated a large improvement in pre- to postoperative activity levels after TAR, with minimal change in activity after AA; however, AA patients were more active at baseline. The most frequent postoperative sports activities after operative management of ankle OA were swimming, hiking, cycling, and skiing. Participation in high-impact sports such as tennis, soccer, and running was consistently limited after surgery. This review of the literature will allow patients and foot and ankle surgeons to set evidence-based goals and establish realistic expectations for postoperative physical activity after TAR and AA. LEVEL OF EVIDENCE: Level III, systematic review.

Biomechanical Comparison of Achilles Tendon Pullout Strength Following Midline Tendon-Splitting and Endoscopic Approaches for Calcaneoplasty.

BACKGROUND: Calcaneoplasty is a common procedure performed for the management of Haglund's syndrome when nonoperative management fails. Midline tendon-splitting and endoscopy are 2 common approaches to calcaneoplasty. Studies have suggested that an endoscopic approach may allow earlier return to activity and superior outcomes, but there are no biomechanical or clinical studies to validate these claims. The goal of this study was to quantify and compare Achilles tendon pullout strength following midline tendon-splitting and endoscopic calcaneoplasty in cadaveric specimens. METHODS: Twelve match-paired cadaveric specimens were randomly divided into 2 groups: endoscopic and midline tendon-split. Following calcaneoplasty, fluoroscopy was used to match bone resection and the Achilles was loaded to failure in a mechanical testing system. A paired-samples t test was conducted to compare bone resection height, bone resection angle, load to failure, and mode of failure. RESULTS: The endoscopic approach yielded a 204% greater postsurgical pullout strength for the Achilles tendon than the midline tendon-split (1368 ± 370 N vs 450 ± 192 N, respectively) (P < .05). There were no differences in resection angle or resection height. All specimens failed due to bone or tendon avulsion. CONCLUSION: Endoscopic calcaneoplasty had more than 3 times greater pullout strength than the midline tendon-splitting approach. CLINICAL RELEVANCE: This may allow earlier return to functional rehabilitation following endoscopic calcaneoplasty, but further studies are needed to determine if these differences are clinically significant. Further understanding of the time-zero biomechanics following calcaneoplasty may provide guidance regarding postoperative management with respect to surgical approach.