Foot and Ankle Surgery最新文献

Background: Literature regarding the feasibility of inexperienced surgeons using needle arthroscopy is limited. The present study aimed to clarify the feasibility of performing ankle needle arthroscopy for inexperienced surgeons.

Methods: Diagnostic needle arthroscopy was performed for 10 cadaveric ankles by two surgeons with different levels of experience in ankle arthroscopy (inexperienced and expert surgeons). The visibility of arthroscopy was assessed based on a 15-point checklist and compared between surgeons. In addition, iatrogenic articular cartilage injury created by the inexperienced surgeon was investigated.

Results: The number of visible points was significantly larger for the expert surgeon than for the inexperienced surgeon (14.1 ± 1.0 vs. 13.7 ± 1.0, P = 0.035). The location of cartilage injury was greatest on the medial talar dome when viewing from the anteromedial portal at a rate of 30%.

Conclusion: Ankle needle arthroscopy may be an option for surgeons in the future, however, differences in surgeon experience may impact effective visualization.

Background: This study aimed to explore the natural history of distal tibial deformity in varus ankle osteoarthritis and to identify risk factors for its progression.

Methods: This retrospective longitudinal observational study included 97 ankles with moderate to severe varus ankle osteoarthritis, monitored for > 2 years. Radiographic assessments were conducted on weightbearing plain radiographs at the initial and final visit.

Results: Significant tibial anterior surface angle reduction (p = 0.008), talus center medial migration (p = 0.038), and tibial lateral surface angle increase (p = 0.034) occurred. Multiple logistic analysis revealed an association between progression and coronal talar tilt angle at the first visit (odds ratio 1.17, p = 0.015) CONCLUSION: The progression of radiographic distal tibial deformity in varus ankle osteoarthritis was clarified, identifying the coronal talar tilt angle as a risk factor.

Level of evidence: Level IV, retrospective longitudinal observation study.

Background: The relationship between hallux valgus (HV) and pes planus remains unresolved. This study aims to determine the correlation between HV and pes planus using a deep learning (DL) model to measure radiographic angle parameters.

Methods: In total, radiographs of 212 feet detectable by the DL model were analyzed. HV was evaluated using the hallux valgus and intermetatarsal angles, while pes planus was assessed using the lateral talo-first metatarsal (Meary's) and calcaneal pitch angles. Correlation analyses were performed for each DL model-measured angle parameter. We investigated whether pes planus worsened with increasing severity of HV and vice versa.

Results: All parameters were significantly correlated with each other. Pes planus worsened with increasing severity of HV, and as the severity of pes planus increased, HV also worsened.

Conclusion: Utilizing the DL model-assisted radiographic angle measurements, this study established a significant correlation between HV and pes planus.

Level of evidence: III.

Background: While total ankle arthroplasty (TAA) has evolved over the years with improved designs and enhanced bony fixation methods, it remains a technically demanding procedure with a risk of early postoperative complications. One of the most common complications associated with TAA is medial and lateral gutter ankle impingement, which can lead to issues such as increased pain and decreased range of motion (ROM). However, there is a paucity of information in the literature discussing the impact of certain risk factors on gutter impingement complications.

Methods: A retrospective analysis was conducted on a cohort of patients who underwent a TAA at a single institution from 2003 to 2019 with a minimum of 2-year follow-up. Patient were identified as having gutter impingement based on diagnostic imaging and/or clinical examination. Data collection included demographics, implant type, follow-up time, and co-morbidities. Multivariate odds ratios (OR) of experiencing gutter impingement were calculated for perioperative variables.

Results: The study included a total of 908 patients who underwent TAA with a minimum of 2 year follow up and 121 patients (13.3 %) who subsequently experienced gutter impingement. The average follow-up time was 5.84 + /- 3.07 years. There were 178 patients under 55 years old, 495 patients aged 55 to 70, and 235 patients over 70 years old. A higher rate of gutter impingement was observed in patients under 55 years of age compared to those aged 55 to 70 and over 70 (20.8 % vs. 13.5 % vs. 7.2 %; p < 0.01). Multivariable logistic regression revealed that patient age was significantly correlated with gutter impingement following TAA, with an OR of 0.94 (CI: 0.91-0.98; p < 0.01).

Conclusion: This study demonstrated increased incidence of gutter impingement in younger patients who underwent TAA. Propensity for scar tissue formation may be higher in this population. Scar tissue deposition following TAA can cause narrowing of the medial and lateral clear spaces, potentially leading to gutter impingement. Additionally, younger patients may have increased activity demands, which subsequently may cause higher rates of symptomatic impingement. As increased impingement after TAA may require the need for additional debridement surgeries, it is important to understand the intricate relationship between age and gutter impingement for managing patient expectations following TAA.

Level of evidence: Level III.

Introduction: Foot and ankle pathology can often require complex surgical reconstruction. Until recently, circular external fixators such as the Ilizarov frame have proven to be useful, yet they fall short when progressive, precise corrections are required. Computer-assisted hexapod external fixators seek to address many of the shortfalls of traditional circular fixators. However, evidence for their use is scarce. The objective of this work was to evaluate the functional and quality of life outcomes and post-operative complications of patients treated with computer-assisted hexapod external fixation.

Methods: A retrospective, observational study was conducted. All cases were treated with either a TrueLok hex (TL-HEX) or a Taylor Spatial Frame (TSF) fixator. Primary outcomes were post-operative improvement in 12-Item Short Form Survey (SF12) and American Orthopaedic Foot and Ankle Score (AOFAS) scores, and complications following Paley's classification.

Results: A total of 59 patients with complex foot and ankle conditions using 64 external fixation frames were included. The median sum of both SF12 score domains improved from a preoperative score of 63.6 to 91.3 at last follow-up (p < 0.001). Median AOFAS improved from a preoperative score of 35 to 75.5 at last follow up (p < 0.001). Functional improvement was not affected by the choice of external fixator. Complications occurred in 49 cases (77 %). The most common post-operative complications included pin tract complications in 37 (58 %) cases, joint rigidity in 24 (38 %) and axial deviation in 9 (14 %).

Conclusions: Computer-assisted hexapod external fixation is an effective technique to correct complex foot and ankle deformities and leads to a marked improvement in post-operative functional and quality-of-life outcomes with a high minor complication rate.