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Background: The spring ligament fibrocartilaginous complex (SLFC), which is essential for stabilizing the medial longitudinal arch, features a little-explored fibrocartilaginous facet within its superomedial aspect, articulating with the talar head. This research aimed to provide a detailed anatomical description of this facet, designated as the spring ligament articular facet (SLAF). Methods: Nine normally aligned cadaveric lower limbs were dissected, approaching the SLFC from a superior direction. Following talus disarticulation, high-resolution images of the ligament complex were captured and analyzed. ImageJ software was used to determine the areas and dimensions of the superomedial calcaneonavicular (SMCN) spring and SLAF. Results: The fibrocartilage facet exhibited a trapezoid shape in all specimens. The mean area for SMCN spring was 280.39 mm², and for SLAF, it was 200 mm². The proximal-to-distal length for SLAF averaged 11.78 mm at its longest and 5.34 mm at its shortest. Attachment of the SLAF to the calcaneum and the navicular showed robust fibrous structures, with average measurements of 3.75 and 1.75 mm at the medial and lateral calcaneal margins, and 2.75 and 2.98 mm at the medial and lateral navicular margins, respectively. Conclusion: This study clearly delineated the individual structural components of the SLFC articulating with the talar head and detailed its dimensions, emphasizing the need for more specific anatomical terminology that respects the intricate anatomy of the SLFC. Level of Evidence: Level III, descriptive study.

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Stage 4 flatfoot represents only a small proportion of flatfoot cases and is likely to become even rarer. The evidence base to guide treatment is limited to case series and expert opinion. Therefore, a pragmatic approach to treatment must be taken. Low-demand individuals may manage well with conservative treatment. Surgical management is complex, likely to require staging, and has a significant complication profile. Patients should be fully informed and understanding of this. First principles of surgery should be followed, including restoring hindfoot and ankle joint alignment, appropriate soft tissue balancing, and optimizing function by limiting arthrodeses and subsequent stiffness.

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Nonunion after a proximal fifth metatarsal fracture can cause considerable pain, with high morbidity and loss of work. Although many authors advocate early surgical management of zone 3 injuries (Jones fractures), zone 1 and 2 fractures are generally expected to heal with conservative management. Uncommonly, zone 1 and 2 fractures can develop nonunions. The aim of this study was to evaluate the efficacy of closed intramedullary screw fixation for nonunions of the fifth metatarsal base. We performed a prospective study involving all fifth metatarsal base nonunions treated in our department over 2 years. Only minimally displaced adult fractures were considered for this study. The fracture pattern was categorized using the Dameron classification (zone 1, styloid process; zone 2, metadiaphyseal area; zone 3, proximal diaphysis). All nonunions were fixed percutaneously under radiographic guidance, without fracture site preparation. Zone 1 injuries were fixed using a 3-mm headless compression screw, and those of zones 2 and 3, with an intramedullary 4-mm screw. Of 30 patients included in this study, a minimum 6-month clinical follow-up was obtained. The average time from injury to treatment was 5.9 months (range 3 to 36). There were no smokers in this patient cohort. There were 12 zone 1 injuries, 9 zone 2 injuries, and 9 zone 3 injuries. All patients achieved union by 3 months after screw fixation, with 29 of 30 achieving union by 6 weeks. All patients had resolution of symptoms. There were no complications. We conclude that percutaneous fixation of fifth metatarsal base nonunions, without fracture site preparation, achieves excellent results. We believe that the screw alters the strain of the fracture, thus promoting fibrous-to-osseous conversion and therefore union.

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Health care costs are increasing. Funding is not increasing at a commensurate rate. Demonstrable cost-effectiveness is critical when selecting operation and implant type. Clinicians must justify their decision on surgery and implant type, providing patient-reported outcome measures (PROM). Providing such data on cost and PROM forms the basis of future cost-effectiveness analysis (CEA). Such analysis is complex. Future research should analyze cost variables individually. Day case surgery, multimodal analgesia, and simultaneous surgery for bilateral cases show promise in reducing cost. With evidence of increased recurrence, requirement for additional equipment and more expensive implants it is unlikely to demonstrate superior cost-effectiveness.

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The scarf osteotomy has become the workhorse procedure for a large proportion of foot and ankle surgeons, especially in Europe, in the treatment of hallux valgus. Such a versatile procedure should not be underestimated, and planning and thought should precede any such procedure. The angle of bone cuts and magnitude of translation dictate the final position, and all movement axes should be given equal attention.

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PURPOSE: The purpose of this study is to propose recommendations for the treatment of patients with chronic lateral ankle instability (CAI) based on expert opinions. METHODS: A questionnaire was sent to 32 orthopaedic surgeons with clinical and scientific experience in the treatment of CAI. The questions were related to preoperative imaging, indications and timing of surgery, technical choices, and the influence of patient-related aspects. RESULTS: Thirty of the 32 invited surgeons (94%) responded. Consensus was found on several aspects of treatment. Preoperative MRI was routinely recommended. Surgery was considered in patients with functional ankle instability after 3-6 months of non-surgical treatment. Ligament repair is still the treatment of choice in patients with mechanical instability; however, in patients with generalized laxity or poor ligament quality, lateral ligament reconstruction (with grafting) of both the ATFL and CFL should be considered. CONCLUSIONS: Most surgeons request an MRI during the preoperative planning. There is a trend towards earlier surgical treatment (after failure of non-surgical treatment) in patients with mechanical ligament laxity (compared with functional instability) and in high-level athletes. This study proposes an assessment and a treatment algorithm that may be used as a recommendation in the treatment of patients with CAI. LEVEL OF EVIDENCE: V.

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OBJECTIVE: Sports people always strive to avoid injury. Sports shoe designs in many sports have been shown to affect traction and injury rates. The aim of this study is to demonstrate the differing stiffness and torque in rugby boots that are designed for the same effect. METHODS: Five different types of rugby shoes commonly worn by scrum forwards were laboratory tested for rotational stiffness and peak torque on a natural playing surface generating force patterns that would be consistent with a rugby scrum. RESULTS: The overall internal rotation peak torque was 57.75±6.26 Nm while that of external rotation was 56.55±4.36 Nm. The Peak internal and external rotational stiffness were 0.696±0.1 and 0.708±0.06 Nm/deg respectively. Our results, when compared to rotational stiffness and peak torques of football shoes published in the literature, show that shoes worn by rugby players exert higher rotational and peak torque stiffness compared to football shoes when tested on the same natural surfaces. There was significant difference between the tested rugby shoes brands. CONCLUSION: In our opinion, to maximize potential performance and lower the potential of non-contact injury, care should be taken in choosing boots with stiffness appropriate to the players main playing role.

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Ankle lateral ligament injuries are one of the most common sporting injuries, with the majority being successfully treated conservatively. However, reconstruction is required if this fails. We present the clinical results of a newly described surgical technique of triple-breasting the lateral ligament complex using suture anchors. Sixteen patients (18 ankles) were treated with this new technique. The mean duration of symptoms was 77 months. The mean follow-up was 25 months. All patients underwent an arthroscopy followed by lateral ligament reconstruction by this new technique. Additional pathology included osteoarthritis (2), ankle impingement due to anterior cheilus (2), osteochondral defects (3) and non-union of fracture of anterior process of calcaneus. Additional procedures above diagnostic arthroscopy, soft tissue debridement and modified Broström-Gould repair included debridement and microfracture (3), open excision of anterior calcaneal process (1) and arthroscopic anterior ankle cheilectomy (2). At final follow-up, all ankles were subjectively and objectively stable. Mean AOFAS score improved from 53 to 88. This was statistically significant (p<0.05). Eight patients had resumed normal pre-injury level of activities (including sports), 8 had some reduction in normal level of activity. The early results of our modification show it to be safe, successful and comparable with previously published series with all patients having objectively and subjectively stable ankles at final follow-up.

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The term scarf osteotomy was first used by Weil when presenting his results from more than 1000 cases. Scarf is a carpentry term describing beveling the ends of 2 pieces of wood and securely fastening them so that they overlap to create one continuous piece. This technique was popularized by Weil and Barouk as a versatile method of correcting hallux valgus while maintaining the blood supply to the metatarsal head. It also has rigid fixation, allowing early mobilization. This article addresses the surgical technique of the scarf osteotomy together with the results and complications of hallux valgus correction.

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BACKGROUND: Patient reported outcome measures are becoming more popular in their use. Retrospective scoring is not yet a validated method of data collection but one that could greatly decrease the complexity of research projects. We aim to compare preoperative and retrospective scores in order to assess their correlation and accuracy. METHODS: 36 patients underwent elective foot and ankle surgery. All patients were scored preoperatively using the SF-12 (including both the physical and mental subsets) and FFI. Patients then recorded both PROMs at the 3-month follow up (av. 139 days). Results were then analyzed for statistical significance. RESULTS: 36 patients (av. age 54.6): completed both sets of questionnaires. There were 15 hindfoot and 21 forefoot procedures. No retrospective scores were identical. The mean percentage difference between the preoperative scores was -7.9% (-17.3 to 1.6%, 95% CI) for Physical Component of SF12, -3.2% (-10.3 to 3.9%, 95% CI) for mental component of SF12 and 40.7% (25.3 to 56.1%, 95% CI) for FFI. This retrospective accuracy was statistically significant (p<0.001). When the scores were plotted against each other, the outcome measurements showed positive correlations (Physical SF 12 p=0.48, Mental SF 12 p=0.80 and FFI p=0.81). With both PROMs mean percentage differences combined, patients undergoing hindfoot procedures (3.5%; -5.0 to 12.1%, 95% CI) were more accurate with retrospective scoring than their forefoot counterparts (17.5%; 5.0 to 30.0%, 95% CI). This was not statistically significant (p=0.07). Using regression analysis, we found no significant statistical difference in the retrospective accuracy when compared against both time to retrospective scoring and the outcome measure at 3 months post operatively. CONCLUSION: Retrospective scoring appears to lack accuracy when compared to prospective methods. However, our data shows the SF12 is recalled more accurately than the FFI (p<0.001) and both the mental and physical components are recalled to within 10% of the pre-operative score. These results show patients tend to recall their symptoms at a worse level preoperatively than originally described, especially those with forefoot problems.

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BACKGROUND: Benefits of day case foot and ankle surgery include reduced hospital stay, cost savings, high patient satisfaction, quicker recovery with no increased complications. The preoperative foot and ankle group was set up in 2007 to reduce inpatient hospital stays and increase the rate of day case procedures. METHODS: We evaluated length of stay and physiotherapy intervention for all our patients during the first three months of 2007-2011. RESULTS: Median length of stay was statistically significant (p<0.05) in all groups apart from the ankle group. Day case surgery rates increased in all groups apart from hindfoot group but the result was only significant for forefoot and midfoot groups. CONCLUSION: The results show that the setting up our group has resulted in reduced inpatient stay, increase in day case surgery rates with significant cost savings.

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BACKGROUND: Previous studies of orthopaedic learning curves have largely described the introduction of new techniques to experienced consultants. End points have usually involved technical considerations. A paucity of evidence surrounds foot and ankle surgery. This study investigates the learning curve during a foot and ankle surgeon's first year, defined by functional outcome. METHODS: 150 patients underwent elective foot or ankle surgery during the whole period. Preoperative and 6 month postoperative functional scores were compared between the first and second 6 month groups. RESULTS: Functional improvement was greater, approaching significance, in the second group (p=0.0605). There was no difference for forefoot cases (p=0.345). Functional improvement was significantly greater in the second group with forefoot cases removed (p=0.0333). CONCLUSIONS: A learning curve exists in the first year of practice of foot and ankle surgery, demonstrated by functional outcome. This is confined to ankle, hindfoot and midfoot, but not forefoot surgery.

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Massive bone loss following calcaneal fractures is a challenging condition to treat, especially if nonunion is present. Meticulous preoperative examination and imaging are crucial for accurate preoperative planning. If performed, successful outcomes can be achieved with the strategies outlined in this article.

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Since the first reports in the medical literature of treatment of the Achilles tendon, complications have been recognized from both non-operative and operative techniques. These include tendon rerupture, sural nerve morbidity, wound healing problems, changes in tendon morphology, venous thromboembolism, elongation of the tendon, complex regional pain syndrome, and compartment syndrome. This article delineates the incidence for each of these complications, with differing techniques, methods of avoiding these complications and treatment methods if they occur.

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BACKGROUND: The progression of subtalar and midfoot arthritis is well documented following ankle arthrodesis, and gait analysis has suggested that a functional gait pattern following arthrodesis may be due to tarsal hypermobility compensating for lost tibiotalar motion. We present a prospective radiographic study comparing the pre- and postoperative range of motion of the foot following ankle arthrodesis utilizing reliable anatomic landmarks to measure the sagittal range of motion. MATERIALS AND METHODS: Between 2002 and 2006, we performed 154 arthrodesis procedures of the ankle. Patients were suitable for inclusion in this study if an isolated arthrodesis of the ankle was performed for post traumatic arthritis only with a minimum of 1-year followup and who had not undergone any prior nor subsequent hindfoot surgery. Standardized pre- and postoperative passive plantar- and dorsiflexion radiographs were obtained, and reproducible anatomic landmarks were then used to measure and compare tibiotalar, subtalar and medial column (talonavicular, naviculo-middle cuneiform and middle cuneiform-first metatarsal) motion. These measurements were repeated at 6, 12, and a mean of 33 months at final followup evaluation. The SF-36, calcaneal pitch, and the presence of radiographic and symptomatic hindfoot arthritis were noted for each patient pre and postoperatively. RESULTS: There were 48 patients who met the inclusion criteria. The mean preoperative sagittal motion (tibiotalar, medial column and subtalar combined) was 37.2 degrees, of which 17.8 degrees was tibiotalar motion. This decreased to a mean of 22.6 degrees postoperatively. The postoperative mean subtalar range of motion increased by 4.1 degrees (from 5.2 degrees to 9.3 degrees) (p < 0.0001), and the medial column motion increased by 2.1 degrees postoperatively (from 14.3 degrees to 16.4 degrees) (p < 0.003). Both of these results were statistically significant. There was a compensatory increase of the combined subtalar and medial column motion after arthrodesis of 10.8%. Using regression analysis, there was a significant correlation between the preoperative tibiotalar motion and the final difference in the subtalar range of motion (p = 0.03) and the combined motion of the medial column and the subtalar joint (p < 0.0001). Quality of life was positively associated with increased compensatory motion of the hindfoot and midfoot after ankle arthrodesis. There was an inverse association between the calcaneal pitch angle and the range of motion postoperatively. CONCLUSION: This prospective study demonstrated a statistically significant relative hypermobility of the subtalar and medial column joints following ankle arthrodesis, and may account for the functional gait which can be achieved following ankle arthrodesis. The significantly increased subtalar range of movement appeared to cause impingement of the posterior part of the posterior facet of the subtalar joint which may account for the increased incidence of subtalar arthritis following arthrodesis. Preoperative arch height can be used to predict both residual motion and function after ankle arthrodesis.

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We prospectively reviewed 22 patients (31 feet) who underwent a scarf osteotomy between January 2001 and March 2002. There were 20 females and 2 males. Ages ranged from 35 to 77 years (mean = 57 years). American Orthopedic Foot and Ankle Society (AOFAS) scores improved from a preoperative mean of 47.94 +/- 13.57 and increased significantly to 96.10 +/- 6.15 (P < .01) after 12 months. The hallux valgus angle improved in all patients from a preop mean of 31.4 +/- 8.0 degrees to 11.0 +/- 10.8 degrees at 12 months. The intermetatarsal angle improved from 13.0 +/- 4.2 degrees to 6.1 +/- 3.2 degrees. All of these changes were significant. Bony union was achieved in all patients. There were no significant changes in peak pressure, pressure/time, or force/time pedobarography noted after 12 months. Significant improvement in pain scores from preoperative mean of 21.29 +/- 11.0 to 32.90 +/- 9.57 at 5 years (P < .01) was noted and 90.9% of patients remained satisfied with the operation and would recommend the procedure. There were 2 complications. One patient experienced a traumatic neuroma and another avascular necrosis of the first metatarsal head. The scarf osteotomy is a safe and effective procedure with reproducible and excellent medium-term results.

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