Resection Of Coalition Research Articles

PO 18244 - Arthroscopic subtalar arthrodesis in tarsal coalition

Objective: To describe the technique and results of arthroscopic arthrodesis through lateral portals in clinical cases of medial subtalar coalition. The posterior arthroscopic technique is considered the most difficult method for coalition resection. Methods: Five patients were operated on from April 2015 to July 2018, a study period of approximately 2 years and 3 months. The patients’ age ranged from 37 years and 6 months to 58 years and 1 month, with a mean age of 44 years and 5 months. All patients were operated on through 2 lateral portals using an eyepiece and knee and shoulder arthroscopic surgery instruments, and fixation was performed using 6.5- and 7.0-mm screws. The use of osteotomes was combined with curettes for coalition osteotomy and fusion release. An accessory lateral posterior portal was also used in one patient. Results: The patients were evaluated at 1, 2, 4 and 6 weeks and subsequently at 3 months, when computed tomography was performed to confirm the fusion. The final evaluations were performed at 6 months and 1 year. At the initial evaluation, the mean American Orthopedic Foot and Ankle Society Score (AOFAS) score was 56.7 points preoperatively; it increased to 87.4 after the blocked inversion/eversion was addressed through arthrodesis. Conclusion: This coalition osteotomy and curettage technique involving the release of the blocked subtalar motion to achieve fusion of the posterior, anterior and medial portions of the subtalar joint was found to be feasible through arthroscopic lateral portals. We recommend this procedure as long as no valgus deformity or significant abduction is present.

Functional and Radiological Outcomes After Tarsal Coalition Resections: A Minimum 5-Year Follow-Up

Few studies have evaluated the long-term functional and radiological outcomes of tarsal coalition resections. This study aimed to report and compare the functional and radiological outcomes after talocalcaneal (TC) and calcaneonavicular (CN) coalition resections. Thirty-three patients between 12 and 35 years old with symptomatic tarsal coalitions participated, each undergoing tarsal coalition resections (24 TC and 9 CN). The range of motion, visual analog scale score, American Orthopedic Foot and Ankle Society hindfoot scale, Maryland foot score, tripod index, and modified Kellgren-Lawrence scale for subtalar osteoarthritis were used to evaluate the functional and radiological outcomes. The mean age at the time of surgery and mean follow-up in the TC group were 17.8 ± 5.6 years (range 13 to 35) and 6.2 ± 1.7 years (range 5 to 12), respectively, and 16.0 ± 4.4 years (range 12 to 23) and 7.7 ± 3.0 years (range, 5 to 12) in the CN group. There was no difference in the range of motion, outcome scores, tripod index score, and modified Kellgren-Lawrence scale score between patients in the 2 groups. A positive correlation was noted between the size of the TC coalition, coalition/joint surface ratio, and hindfoot valgus angle regarding outcome scores. However, there was no association between the modified Kellgren-Lawrence scale score and outcome scores. At the minimum 5-year follow-up, the functional and radiological outcomes were similar between TC and CN resections. Subtalar joint osteoarthritis developed in all patients with TC resections and most patients with CN resections, but patients did not have functional impairment.

Talocalcaneal Coalition Resection with Corrective Osteotomies in Symptomatic Adolescents

Category:HindfootIntroduction/Purpose:Resection of a symptomatic talocalcaneal coalition in an adolescent without correction of the planovalgus deformity aggravates the problem because the tight peroneal tendons and triceps surae pull the heel into more valgus after release of the subtalar joint. This study aims to evaluate the clinical results of resection of symptomatic talocalcaneal coalition in adolescents with simultaneous correction of the planovalgus deformity using combined bony and soft tissue procedures.Methods:In 24 feet in 21 adolescents (age 13 to 17) with symptomatic talocalcaneal coalition and planovalgus deformity, resection of the coalition was performed together with simultaneous medial displacement calcaneal osteotomy, lateral column lengthening, Cotton osteotomy if needed, gastrocnaemius recession, and peroneal tendon fractional lengthening. Follow up evaluation was done using the AOFAS hindfoot score and subjective patient satisfaction. Complications and reoperation were reported.Results:After a minimal follow up of one year (range 1 to 5 years), the results were classified excellent in 12 feet, good in 8 feet, and fair in four feet using the AOFAS hindfoot score. Subjective patient satisfaction was graded excellent in 14 feet, good in 6 feet and fair in four feet. Two patients underwent subsequent subtalar fusion with subsequent improvement and satisfaction. Other complications included superficial wound problems in 5 feet, and talar incomplete fracture during coalition resection which was fixed in one foot.Conclusion:Resection of a symptomatic talocalcaneal coalition with simultaneous correction of pes planovalgus deformity is a good option for management of such problem in adolescents.

Technique Article: Tarsal Coalition Resection Using Kirschner Wires Across the Subtalar Joint in a Two-Incision Approach

Subtalar coalitions are a significant cause of morbidity, especially in the pediatric population. Arthrodesis was considered the standard of care, with coalitions involving >50% of the joint until the mid-1990s. Today, some are recommending resection of the coalition first and to save hindfoot arthrodesis as a salvage procedure. As a result, resection of talocalcaneal coalitions is becoming more common, and optimizing the surgical technique is a necessity in the field of orthopedics. We present a technique to optimize surgical resection of talocalcaneal coalitions by using Kirschner wires inserted from the lateral side, which allows us to demarcate the coalition. This gives us a greater ability to perform a more complete resection and also helps prevent iatrogenic trauma to the articulating surface.

3D Printing Surgical Guide for Talocalcaneal Coalition Resection: Technique Tip.

3D Printing Surgical Guide for Talocalcaneal Coalition Resection: Technique Tip.

Resection of Medial Talocalcaneal Coalition With Interposition of a Pediculated Flap of Tibialis Posterior Tendon Sheath.

The purpose of the study was to present a novel operative technique in the management of medial talocalcaneal coalition (TC) and to report our clinical and radiologic results after interposition of a pediculated flap (PF) of the tibialis posterior tendon sheath. Twelve feet of 10 patients with a medial TC were treated with the interposition of PF of the tibialis posterior tendon sheath following resection. Pre- and postoperative clinical examinations were performed to evaluate the range of motion and the function of the tibialis posterior muscle of the affected foot. Pain was registered by visual analog scale (VAS) and the function of the foot by the American Orthopaedic Foot & Ankle Society (AOFAS) hindfoot score. The mean follow-up duration was 57.2 months (SD ±37.2 range 12-128) after surgery. Magnetic resonance imaging (MRI) was carried out to assess the outcome. All patients reported a significant reduction of pain ( P = .002) at the final follow-up. The activity level had improved since the operation, and the subtalar joint motion was increased, but no weakness of the tibialis posterior muscle could be observed. The AOFAS hindfoot score was significantly improved ( P = .002). MRI did not reveal any migration of the tibialis posterior tendon sheath, and the interposed PF was confirmed at the resection zone. Furthermore, no TC relapse or ruptures of the functional anatomical structures could be observed. The resection combined with the interposition of a PF of the tendon sheath seems to avoid relapse of TC and improves symptoms and the function of the foot. Level IV, case series.

Subtalar coalition resection utilizing live navigation: a technique tip.

PurposeDescribe the surgical technique of talocalcaneal coalition resection using live CT navigation.MethodsA ten-year-old female with left talocalcaneal coalition hindfoot pain refractory to conservative management underwent surgical coalition resection using live CT navigation. The procedure and discussion of this technique is described in detail.ResultsWith minimal radiation exposure to the patient, CT navigation for this complex talocalcaneal coalition was both helpful and potentially timesaving by allowing immediate localization and guided resection of the coalition.ConclusionIn the case of a complex subtalar coalition resection, CT navigation poses minimal patient radiation exposure and allows immediate localization and guided resection of the coalition.Level of EvidenceLevel V

Osseous bridge resection for the treatment of adult talocalaneal coalitions without arthritis

To analyze clinical outcomes of osseous-bridge resection for the treatment of adult symptomatic talocalcaneal coalitions without arthritis. The clinical data of 12 patients (15 feet) with symptomatic talocalcaneal coalitions without arthtitis from January 2013 to June 2016 were respectively analyzed. All cases were secondary talocalcaneal coalition. There were 9 males (11 feet) and 3 females (4 feet) with a mean (26.6±3.3) years old (ranged, 18 to 33 years old). According to the Rozansky classification, there were 4 (6 feet) type I, 3 (3 feet) type II, 2 (2 feet) type III, 1 (1 feet) type IV, and 2 (3 feet) type V. All patients received coalition resection and interposition of fat graft. Complication, recurrence and range of motion was regularly recorded after operation. Clinical efficacy was evaluated according to the visual analogue scale (VAS) and the American Orthopedic Foot and Ankle Society (AOFAS) ankle hindfoot scale. All patients were followed up for an average duration of (28.7±18.3) months (ranged, 12 to 48 months). All the incisions were primarily healed. There were no wound necrosis, infection, neurovascular or tendon injuries. Range of motion was improved in 13 feet. All patients returned back to work. Recurrence happened in 1 case 2 years after surgery, the patient received a secondary coalition resection. At the latest follow-up, VAS was 2.1±0.8 and AOFAS score was 82.7±7.2, were siginificantly improved when compared with the preoperative scores(8.2±0.7, t=6.233, P<0.01; 48.4±6.8, t=5.747, P<0.01). For adult patients with symptomatic talocalcaneal coalitions without arthritis, simple coalition resection could provide good clinical outcomes with minimal complications.

Fat Graft and Bone Wax Interposition Provides Better Functional Outcomes and Lower Reossification Rates Than Extensor Digitorum Brevis After Calcaneonavicular Coalition Resection.

Calcaneonavicular coalitions are the most common form of tarsal coalitions. The prefered treatment for symptomatic coalitions is surgical resection; however, there are no published studies that directly compare different interposition techniques. The purpose of the present study was to retrospectively compare pain relief, functional outcomes, and complications of children and adolescents who had a resection of a symptomatic calcaneonavicular coalition with interposition of fat graft, bone wax, or extensor digitorum brevis (EDB). In total, 48 patients (56 ft) underwent calcaneonavicular coalition resection-interposition at 3 institutions from July 2008 to July 2015. There were 23 feet in group 1 (fat graft), 18 feet in group 2 (bone wax), and 15 feet in group 3 (EDB). Patient demographic characteristics were similar between all groups for age, sex, coalition type, and symptoms onset. Data concerning clinical and radiographic features, surgical technique, and postoperative complications were obtained from all available medical records. Radiographs were evaluated at last follow-up to determine coalition regrowth. Preoperative and postoperative pain was assessed with the visual analog scale, and function was assessed with use of the American-Orthopaedic-Foot and Ankle Society (AOFAS) score. Pain improved to an average of 0.5 in the first group (range, 0 to 6), 0 in group 2, and 1.7 in group 3 (range, 0 to 5) (P=0.033). The average AOFAS score improved from 59 (range, 33 to 71 points) to 98 points (range, 62 to 100 points) in the fat graft group, from 50 (range, 34 to 62 points) to 98 points (range, 88 to 100 points) in the bone wax group, and from 48 (range, 30 to 60 points) to 75 points (range, 70 to 95 points) in the EDB group (P<0.001). Eight feet had regrowth of the coalition on the postoperative radiographs: 1 in group 1 (4%), 1 in group 2 (6%), and 6 in group 3 (40%) (P=0.004). Five feet from the third group developed progressive symptoms. In our study, autogenous fat graft and bone wax interposition techniques provided better pain relief, gave better functional scores, and avoided more effectively coalition reossification than EDB technique. Further studies are required to evaluate safety of bone wax as an interposition material. Level III-therapeutic.

Intraoperative Three-Dimensional Navigation for Talocalcaneal Coalition Resection

Talocalcaneal tarsal coalitions are a common source of foot pain, stiffness, and deformity. These coalitions are treated symptomatically with rest and periods of immobilization. When those measures fail, surgical resection is attempted. This procedure is an anatomic challenge with the consequence of leaving residual coalition. The residual coalition primarily results from difficulty with intraoperative imaging because fluoroscopy does not provide adequate detail of this area. Some investigators have recommended intraoperative computed tomography after resection with reasonable results. We describe the combination of an intraoperative computed tomography with a navigated instrument system for resection of talocalcaneal coalitions. The use of a navigated probe and burr aids in defining the most anterior, posterior, and medial extents of the coalition. This technique reduces the morbidity, with less bone removed and preservation of intact subtalar articulations and allows for an efficient, thorough, and controlled resection.

Surgical Reconstruction for Talocalcaneal Coalitions With Severe Hindfoot Valgus Deformity.

Coalition resection can restore motion, and improve pain in patients with talocalcaneal coalitions (TCCs) and an aligned foot. However, there is some debate regarding appropriate treatment of patients with associated valgus deformity. The purpose of this study was to present the outcomes and complications following surgical reconstruction, with or without coalition resection, in a series of patients with TCC and severe hindfoot valgus. Thirteen consecutive patients (14 feet) were evaluated. Eleven patients were male. Mean age was 14 years. Mean follow-up was 43.8 months. Seven patients (8 feet) underwent simultaneous resection of the coalition and reconstruction, and 6 patients (6 feet) isolated reconstruction. The talar-first metatarsal angle, the talar-horizontal angle, and calcaneal pitch were measured preoperatively and postoperatively. Clinical evaluation was made according to the American Orthopaedic Foot and Ankle Society ankle-hindfoot score. All radiographic values improved significantly and were within the normal ranges postoperatively. The average American Orthopaedic Foot and Ankle Society ankle-hindfoot score had improved from 45 to 98 points (P<0.001) in the group of simultaneous resection and reconstruction, and from 60 to 92.3 points (P=0.002) in the group of isolated reconstruction. All patients were asymptomatic at the last follow-up and were satisfied with the procedure. Surgical reconstruction with or without coalition resection can achieve significant functional and radiographic improvements, and symptoms relief in selected patients with TCCs and severe valgus deformity. Level IV-therapeutic study.

The Use of Cryo-Preserved Umbilical Cord Plus Amniotic Membrane Tissues in the Resection of Tarsal Coalition

Category: Hindfoot Introduction/Purpose: Tarsal coalition can be a common underlying cause of painful flatfoot deformity in adolescent and adult patient populations. When conservative options fail, surgical resection becomes the mainstay of treatment. Adequate resection leaves a void, often filled with bone wax, fat graft or adjacent muscle or tendon. Interposition grafting is designed to provide a physical barrier between the ends of the excised segment and deter recurrence or bony overgrowth. No definitive graft choice has been shown to be superior to another. The goal of this study was to evaluate the use commercially available umbilical cord plus amniotic membrane tissues as an interposition graft with functional and radiological outcomes at one year follow-up. Methods: Retrospective review was performed of patients who had resection of tarsal coalition at our institution. Patients who had interposition of umbilical cord plus amniotic membrane tissues (Amniox Medical, Atlanta GA) at the site of the resection were included in this review. Postoperative data collection included VAS scores, Foot Function index scores, and radiographic review. Radiographic review included postoperative CT scans in all patients. Assessment of hindfoot ROM was noted on physical examination at last follow up visit. Results: Fourteen patients (8 male and 6 female; median age 28.5 years at time of evaluation) were enrolled in the study. Of these patients, 7 were calcaneonavicular coalitions and 7 were talonavicular coalitions. Average follow up occurred at 18 months (range 9-32 months). Interposition of umbilical cord plus amniotic membrane tissues was performed at the site of the resection. Median improvement in pain visual analog score (VAS) was 89.75%, with no post-operative infection or wound complications. Post-operative CT scan review demonstrated evidence of osteoarthritis in two patients (one at talonavicular and one subtalar joint). Four of 14 patients (29%) were found to have recurrence at follow-up. The median post-operative Foot Function Index score was 46 (range 30-110) and 64% of patients had improvement in range of motion. Conclusion: Based on radiological and functional outcomes at an average 19 month follow up, the interposition of umbilical cord plus amniotic membrane tissues after tarsal coalition resection appears to be a viable option in treating these patients. No adverse reactions were found and recurrence rate was noted to be 29%.

Endoscopic Resection for Talocalcaneal Coalition Using Posteromedial Approach

Category: Hindfoot Introduction/Purpose: Initial treatment of symptomatic talocalcaneal coalition (TCC) is reduced activity or cast immobilization. If these conservative treatments does not relieve symptoms, surgical treatment is recommended. The operation for TCC is usually treated by an open procedure. We report the results of the three cases by endoscopic resection using posteromedial approach. Methods: Three consecutive patients (3 feet, 2 men and 1 female) who underwent surgery for TCCs were reviewed. Patient’s age at the time of surgery were 12, 13, 19 years respectively. All patients suffered from a foot pain after ankle sprain. Two patients didn’t play sports because of this pain. This operation is performed in the supine position. Two portals are each created at the proximal and distal to the vertex of the medial malleolus. Portal positions are marked by use of sonography to avoid the injury of tendons and neurovascular. By use of a shaver a radiofrequency device, as much soft tissue must be removed as possible to allow easy coalition resection, the surgeon performs sufficient resection of the coalition using an abrader until the normal articular surface can be confirmed. Movements of ankle and toes are encouraged from immediately post-operatively. Weight bearing is permitted 1 week after surgery. Results: All patients had a relief of pain. The mean preoperative and final follow-up AOFAS ankle-hind foot scale scores were from 65.3 to 92.3. Two patients returned to playing sports by three months. The mean operation time was 123 minutes (range: 97–148 minutes). However, compared with the initial cases, recent cases tended to have shorter surgical times. No complications occurred. Conclusion: A posteromedial approach for TCC is a useful technique because the advantage of allowing (1) a direct approach to both the middle- and posterior-facet coalitions without obstruction, (2) the creation of sufficient working space, (3) the obtuse insertion angle between the endoscope and instrument. On the basis of these advantage, endoscopic resection of a TCC using the posteromedial approach is considered a useful technique. To decrease the risk of neurovascular damage and tendon injury, portal positions are marked in advance by use of sonography, so that, a safe endoscopic resection of the coalition is performed.

Surgical navigation in paediatric orthopaedics.

Computer-assisted orthopaedic surgery was born in the 1990s. Nowadays, computer-assisted orthopaedic surgery is used for transpedicular screw fixation and for total knee arthroplasty.Patient-specific instrumentation is one type of computer-assisted surgery based on volumetric images, such as computed tomography or magnetic resonance imaging.In this article, possible applications of patient-specific instruments in paediatric orthopaedics are described. The use of patient-specific instrumentation for the correction of cubitus varus is given as an example with complex osteotomy. Another application for tarsal coalition resection is shown.A last example of using patient-specific instrumentation for both tumour resection and allograft reconstruction is illustrated.Patient-specific instruments based on computed tomography of the bone can increase peri-operative accuracy and decrease operative time. They are very helpful for the surgeon. Other applications are possible and will be probably developed in the future.Cite this article: Docquier PL, Paul L, TranDuy V. Surgical navigation in paediatric orthopaedics. EFORT Open Rev 2016;1:152-159. DOI: 10.1302/2058-5241.1.000009.

Calcaneonavicular Coalition Resection With Pes Planovalgus Reconstruction

Calcaneonavicular coalitions can lead to a painful, rigid pes planovalgus deformity. Historical treatment of coalitions recommends resection. A newer concept in coalition treatment includes concomitant flatfoot reconstruction. In the present study, we hoped to demonstrate the ability to reconstruct a flatfoot deformity with concomitant calcaneonavicular coalition resection. We performed a retrospective comparative study of patients undergoing isolated calcaneonavicular bar excision (group A) with those undergoing calcaneonavicular bar excision and concomitant pes planovalgus reconstruction (group B). The radiographic parameters of pes planovalgus correction were measured on the pre- and postoperative radiographs, including talar head uncoverage, calcaneal inclination, and anteroposterior and lateral talo-first metatarsal angle. Calcaneonavicular coalition resection was performed using a standard technique with or without biologic spacers. Associated flatfoot reconstruction included posterior muscle group lengthening, calcaneal osteotomy, and/or midfoot osteotomy. Of the 27 patients, 20 were included in group A and 7 in group B. Their mean age was 18.1 years. Improvement was seen in the radiographic parameters for patients undergoing calcaneonavicular bar excision with concomitant flatfoot procedures, with statistical significance found in the calcaneal inclination (p = .013). Talar head uncoverage improved in both groups (p = .011). No change was found in the radiographic angles in patients undergoing isolated calcaneonavicular bar excision. No patients in either group developed recurrence of the coalition. The results of the present study demonstrated radiographic improvement in patients undergoing calcaneonavicular bar excision with concomitant pes planovalgus reconstruction. Hindfoot reconstruction with joint sparing osteotomies during coalition excision is a reasonable option to improve alignment and avoid arthrodesis.

Cuboid-Navicular Tarsal Coalition in an Adolescent Female Athlete: A Case Report.

A fourteen-year-old female shot-putter developed midfoot pain with activity that initially responded to nonoperative care. However, the symptoms subsequently returned and became persistent. Advanced imaging demonstrated a fibrous cuboid-navicular tarsal coalition. Surgical resection of the tarsal coalition was performed when the patient was seventeen years old, and she returned to sports activities postoperatively with no pain. Although fibrous cuboid-navicular tarsal coalition is a very rare condition, it should be considered as one cause of persistent midfoot pain in an adolescent athlete. Surgical resection of the tarsal coalition can lead to a resolution of symptoms.

Patient-reported Outcomes of Tarsal Coalitions Treated With Surgical Excision.

There are little patient-reported data on functional outcomes of tarsal coalition resection in children and adolescents. The purpose of this study is to evaluate the medium-term (>2 y) outcomes in patients who have had surgical excision of their symptomatic tarsal coalition and to compare patient-based outcomes in patients who have calcaneonavicular (CN) coalitions to those with talocalcaneal (TC) coalitions. A billing query was conducted to identify patients who had surgical excision of their tarsal coalition between 2003 and 2008. Eligible patients were mailed questionnaires consisting of a modified American Orthopaedic Foot and Ankle Society (AOFAS) score and the University of California at Los Angeles (UCLA) activity scale. Patients were also specifically asked if their activity level was limited by their foot pain. Only patients who returned questionnaires were included. Demographics and diagnostic images were reviewed. A nonresponder analysis was completed. Complications such as infection and reoperation were reported. Sixty-three patients (22 females, 41 males) who returned questionnaires were included in the analysis. Twenty-four patients had bilateral surgery. TC coalitions were present in 20 patients (32%); CN coalitions were present in 43 patients (68%).Overall, mean modified AOFAS score was 88.3 and mean UCLA activity score was 8.33 at an average of 4.62 years after surgery. Patients who had TC coalitions had similar modified AOFAS scores (88.4) and UCLA activity scores (8.4) when compared with those with CN coalitions (88.0 and 8.3, both not significant).Of the 73% (46/63) patients who reported that their activity levels were not limited by their foot pain, the mean AOFAS score was 93.9 and the mean UCLA activity score was 8.9; 32 of these were CN and 14 were TC coalitions. Of the 27% (17/63) patients who reported that their activity levels were limited by their foot pain, the mean AOFAS score was 72.9 and the mean UCLA activity score was 6.9; 11 of these were CN and 6 were TC coalitions. There was a statistically significant difference in these groups both in modified AOFAS score (P<0.0001) and UCLA activity score (P=0.006). There was no difference in outcomes between those who were treated for a TC and CN coalition. Patient-reported outcomes after surgical excision of tarsal coalition reveal that >70% of patients' activities are not limited by pain and their functional outcome is terrific. A few patients continue to have problems with ongoing foot pain and activity limitations. The type of coalition does not seem to be an indicative factor in determining outcome.

Arthroscopic Talocalcaneal Coalition Resection in Children

To present the technique and outcomes of arthroscopic talocalcaneal coalition (TCC) resection in pediatric patients. We performed a prospective study of 16 consecutive feet with persistent symptomatic TCCs in 15 children. The mean age was 11.8 years (range, 8 to 15 years), and the mean follow-up period was 28 months (range, 12 to 44 months). A posterior arthroscopic TCC resection was performed. The plantar footprint, subtalar motion, pain, and the American Orthopaedic Foot & Ankle Society Ankle-Hindfoot scale score were evaluated preoperatively and postoperatively. Preoperative computed tomography (CT) scans were used to classify the coalition according to the Rozansky classification, to measure the percentage of involvement of the surface area, and to determine the degree of hindfoot valgus. Postoperative CT scans at 1 year (n= 15) and 3 years (n= 5) were used to assess recurrences. Patient satisfaction was also evaluated. The TCC distribution according to the Rozansky classification was type I in 7 cases, type II in 3, type III in 3, and type IV in 3. In all cases the arthroscopic approach enabled complete coalition resection. All patients increased by at least 1 stage in the footprint classification and showed clinical subtalar mobility after surgery. All patients showed a statistically significant improvement in pain after surgery except for 1 patient in whom complex regional pain syndrome developed (P < .001). The mean American Orthopaedic Foot & Ankle Society score was 56.8 (range, 45 to 62) preoperatively versus 90.9 (range, 36 to 100) postoperatively, showing a statistically significant increase (P < .001). Preoperative CT scans showed that all TCCs involved the medial subtalar joint facet, with mean involvement of 40.8% of the articular surface. All postoperative CT scans showed complete synostosis resections with no recurrences at final follow-up. At final follow-up, all patients were either satisfied (n= 4 [27%]) or extremely satisfied (n= 10 [67%]) with the outcome, except the 1 patient (7%) in whom complex regional pain syndrome developed. Arthroscopic TCC resection provides good outcomes (symptom relief and restoration of subtalar motion), with no recurrence of the coalition. Level IV, therapeutic case series.

Experimental model in cadavera of arthroscopic resection of calcaneonavicular coalition and its first in-vivo application

Experimental model in cadavera of arthroscopic resection of calcaneonavicular coalition and its first in-vivo application

Tarsal Coalitions: Preliminary Results After Operative Excision andSilicone Sheet Interposition in Children.

Symptomatic tarsal coalitions that begin in early adolescence are usually treated by resection and interposition (fat, muscle, or bone wax) to prevent recurrence. The purpose of the present retrospective study was to describe our operative technique and report our clinical and radiologic outcomes with sterile silicone sheet interposition after resection of painful tarsal coalitions in 4 children (4 feet). The present series included 1 case of talocalcaneal synchondrosis and 3 of synostosis (2 talocalcaneal and 1 cuboid-navicular). Two validated functional scales were used to assess the patients' overall outcome and satisfaction with the procedure: the American Orthopaedic Foot and Ankle Society ankle-hindfoot score and the Foot Function Index. Conventional radiography, computed tomography with 3-dimensional reconstruction, and magnetic resonance imaging were performed at the final follow-up visit. The mean follow-up period was 40 (range 12 to 80) months. The mean age at surgery was 10.5 (range 8 to 13) years. All patients had achieved their desired activity level at 6months postoperatively. The mean American Orthopaedic Foot and Ankle Society ankle-hindfoot score was 93.5 (range 74 to 100), and the mean Foot Function Index was 3.25% (range 0% to 13%). No recurrence of the coalition on imaging at the final follow-up visit was observed in this patient series. Sterile silicone sheet interposition can be used to prevent recurrence of tarsal coalition in symptomatic tarsal coalitions after failure of conservative management.