Background:. Avascular necrosis (AVN) of the talus is a painful condition caused by trauma, steroids, alcoholism and haematological disorders. It is difficult to treat and at present there is insufficient evidence in favour of any particular strategy. The aim of operative therapy should be to relieve symptoms, maintain the normal architecture of the talus and treat associated arthritis. Small case series have described early core decompression, retrograde tibiotalocalcaneal arthrodesies and open tibio-calcaneal arthrodesis. Open procedures risk further talar collapse by disrupting its blood supply, and tibiotalocalcanal fusion sacrifices both the ankle and subtalar joints. The hypothesis is that arthroscopic ankle fusion relieves symptoms of AVN talus while preserving the subtalar joint and preventing further collapse. Methods:. A case study was performed of 16 patients with AVN who underwent arthroscopic ankle fusion at the Nuffield Orthopaedic Centre, Oxford, UK between 1998 and 2012. Clinical notes, radiographs and MRI was used to investigate the cause, co-morbidities and treatment outcomes following arthroscopic ankle fusion. Our primary outcome was fusion rate. Secondary outcomes included peri-operative complications, ongoing pain and subsequent operative intervention. Results:. The average age at the time of operation was 53.5 years (range 17 to 69). The presumed causes of AVN talus were steroids (3 patients), trauma (3 patients), haematological (2 patients), and alcoholism. The aetiology was unknown in 7 patients. Clinical and radiological fusion at the ankle joint was confirmed in 14/16 patients (2 were followed elsewhere). 11 patients were satisfied with the result at discharge, reporting no post operative complications. 3 patients had ongoing pain. 2 patients reported metalware irritation. 2 patients underwent a subsequent subtalar fusion. Conclusions:. Arthroscopic ankle fusion is a safe and reliable treatment of symptomatic AVN talus. It is a minimally invasive procedure potentially improving blood supply to the the talus and sparing the subtalar joint

The August 2015 Foot & Ankle Roundup. 360 . looks at: Is orthosis more important than physio in tibialis posterior deficiency?; Radiographic evaluation of ankle injury; Sciatic catheter quite enough!; A fresh look at avascular necrosis of the talus; Total ankle and VTE; Outcomes of posterior malleolar fracture; Absorbable sutures in the Achilles tendon; Lisfranc injuries under the spotlight

Abstract. Background. Tibiotalocalcaneal (TTC) fusion is indicated for severe arthritis, failed ankle arthroplasty, avascular necrosis of talus and as a salvage after failed ankle fixation. Patients in our study had complex deformities with 25 ankles having valgus deformities (range 50–8 degrees mean 27 degrees). 12 had varus deformities (range 50–10 degrees mean 26 degrees) 5 ankles an accurate measurement was not possible on retrospective images. 10 out of 42 procedures were done after failed previous surgeries and 8 out of 42 had talus AVN. Methods. Retrospective case series of patients with hindfoot nails performed in our centre identified using NHS codes. Total of 41 patients with 42 nails identified with mean age of 64 years. Time to union noted from X-rays and any complications noted from the follow-up letters. Patients contacted via telephone to complete MOXFQ and VAS scores and asked if they would recommend the procedure to patients suffering similar conditions. 17 patients unable to fill scores (5 deceased, 4 nails removed, 2 cognitive impairment and 6 uncontactable). Results. In our cohort 33/38 of hindfoot nails achieved both subtalar and ankle fusion in a mean time of 7 months. 25 patients with 26 nails had mean follow up with post op scores of 4 years. Their Mean MOXFQ scores were (Pain: 12.8 Walking: 12 Social: 8) and visual analogue pain score was 3. 85% of patients wound recommend this surgery for a similar condition. 20 complications with 15 requiring surgery(5 screw removals, 1 percutaneous drilling, 1 fusion site injection, 8 nail revisions). Conclusion. In our experience hindfoot nail TTC fusion reliably improves the function of patients with severe symptoms in a variety of pathophysiological conditions and complex deformities. Most of our patients would recommend this procedure. There is a lack of studies with long-term follow-up

Introduction. Taylor Spatial Frame (TSF) has been designed to treat complex tibial, foot and ankle deformities using computer software. We have performed various osteotomies in combination with different soft tissue procedures, with the use of TSF. Material and Methods. A retrospective study of 20 consecutive patients operated by, senior author SSM, from 2004 onwards who underwent surgical correction of tibia, ankle, midfoot and hind foot including lateral column lengthening, calcaneal and midfoot osteotomies. Demographic details, diagnosis, procedures (including previous operations), length of follow-up, outcome and complications were recorded. Of the 20 patients, 13 were men and 7 women. The mean age was 39 years (range 18 to 70). 5 patients had TSF for malunion or non-union of ankle fractures, malunion of tibia (5), congenital talipes equino-varus(3), acute fracture of ankle (2), one patient each for spina bifida, Poliomyelitis, Charcot-Marie-Tooth disease, equino-varus due to periventricular leuco-encephalopathy and avascular necrosis of the talus. Bilateral TSF for torsional malalignment of tibia (1). Results. Follow up 6 to 54 months (mean 19.4). Patient based foot and ankle outcome criteria were used. Of the 20 patients, 16 had no pain and satisfactory range of movement and function at the last follow up. Post-operative complications included pin site infection(2) and frame hardware malfunction (2)patients, residual deformity requiring surgical correction at 22 months, (1) delayed union, neuropathic pain in (1), residual equinus deformity requiring Botox injections(1) and osteomyelitis requiring debridement(1). Conclusion. We present this series of complex congenital and acquired conditions of the foot and ankle treated with corrective osteotomies and Taylor Spatial Frame with good results

After gaining experience from 1990 to 2003 using the Cincinnati incision in the surgical treatment of congenital clubfoot, we were able to extend its use to the early surgical treatment of congenital vertical talus (CVT). Eight of the 172 feet were affected by CVT; four were idiopathic, three were associated with arthrogriposis and one with cerebral palsy. The average age of the six children at the time of the operation was 13.5 months (range 6–27 months). We performed a posterior, medial and lateral release of the subtalar joint and of the talona-vicular joint. The reduction of the talus was performed using a K-wire placed through the posterolateral aspect of the talus in its longitudinal axis. After the calcaneus was reduced from its everted position, a second K-wire was placed through the calcaneus and into the talus. The medial talonavicular joint capsule was opened and the redundant capsule reconstructed. Peroneal tendon lengthening was performed in five cases. The radiological evaluation, according to Hamanishi, showed preoperatively a talo-first metatarsal angle of 94° (NV: 3.3 ± 6.4 SD) and a calcaneal-first metatarsal angle of 54° (NV: −9 ± 4.5 SD); postoperatively the values were 24° and 7°, respectively. There were no wound complications or avascular necrosis of the talus. With the Cincinnati incision we were able to visualise the talo-calcaneal and talo-navicular dislocation in all three spatial planes. It also allowed us to correct the deformity in all three mentioned planes and in a single-step procedure

Purpose: The retrospective evaluation of the results of the application of the ring and hybrid systems of external fixation for the management of the high energy injuries of the talus. Material and Methods: Between 1990–2001, seventeen patients with complex injuries of the talus were treated with the application of ring or hybrid fixators. Eleven patients were males and six females. Isolated fracture of the talus was recorded in five patients, fracture- dislocation in four and pantalar dislocation in eight. The injury was open in twelve patients. Six patients had multiple injuries. To classify the talar injury we used the systems of Hawkins and Marti/Weber. Tension wire fixation with the use of either Ilizarov or hybrid frames was applied in all fractures. Additional internal fixation was performed in eleven fractures. The fixation was extended at the forefoot in all fractures. Results were assessed using Kiel’s evaluation system. Results: The mean follow up was 42 months (range, 25 to 96). We had no cases with deep infection, wound break down, osteomyelitis, or septic arthritis. We had five excellent, eight good, three fair and one poor result. The final radiographic appearance was not satisfactory in six fractures. Avascular necrosis of the talus was diagnosed in four fractures (23.5%). Conclusions: Using the ring and hybrid external fixation systems a satisfactory reduction of the high energy fractures and dislocations of the talus with the maximum respect of the anatomical architecture of the adjacent tissues can be achieved. The method offers an excellent stability of the fracture, diminishes the rate of the postoperative infection, and reduces significantly the risk of talus avascular necrosis

Purpose: Congenital insensitivity to Pain (CIP) is a rare peripheral neuropathy which may affect various sensory pathways and often affects the autonomic nervous system. Musculoskeletal manifestations include infections, fractures, growth disturbances, avascular necrosis, Charcot arthropathy, joint dislocations and heterotopic ossification. The purpose of the study was to review the orthopaedic problems in patients with Congenital Insensitivity to Pain and make treatment recommendations. Methods: Thirteen patients from eight families were examined and all charts and radiographs were reviewed. A quantitative sweat test was performed in five patients and an intradermal histamine test in ten. DNA was prepared in all patients and examined for specific mutations. Results: Three clinical presentations were found:. Type A – Five patients presented with multiple infections requiring many surgical procedures ranging from local debridement to below knee amputation. Type B – Three patients presented with fractures and growth disturbances of the lower limbs as well as avascular necrosis of the talus or femoral condyle. Two patients underwent corrective osteotomies due to deformities. Type C – Five patients presented with Charcot arthropathies, joint dislocations, fractures and infections. Four of them were mentally retarded. Patients underwent multiple surgical procedure to control infections. Attempts surgical stabilization of joints were unsuccessful. Mutations were found in four patients. Conclusions. Patient education, shoe ware and periods of non weight bearing are important in prevention and early treatment of decubitus ulcers. Differentiation between fractures and infections is difficult and should be based on aspiration and cultures in order to prevent unnecessary surgery. Established infections should be treated by wide surgical debridement. Deformities should be treated by corrective osteotomies and shortening should be treated with shoe lifts or epiphysiodesis. Joint dislocations should be treated non-operatively as attempts at surgical stabilization gave poor results

Congenital vertical talus is a rare deformity. Many different surgical procedures have been described, and there is debate about whether the correction should be done in one or two stages. We review the results of single stage surgical correction of congenital vertical talus. Between 1992 and 2000, five boys and seven girls were treated, ranging in age from eight months to two years. In six children both feet were involved, so there was a total of 18 feet. One child had spina bifida, four had arthrogryposis multiplex congenita and three had syndromes and chromosomal abnormalities. Four cases were idiopathic. Dorsolateral and medial incisions were used. Through the dorsolateral the sinus tarsus, calcaneocuboid and talonavicular joints were released and the extensors lengthened. Through the medial incision the navicula was reduced onto the talus, the tibialis posterior and talonavicular capsule were reefed and the tendo Achillis lengthened. The talonavicular and calcaneocuboid joints were pinned. The tibialis anterior was re-routed through the talar neck. Plasters were changed after two weeks and serial plasters were applied for four to six months. Follow-up ranged from one to seven years. Results were assessed clinically and radiologically, using the Adelaar 10 point scoring system. There were no wound complications or cases of avascular necrosis of the talus. Further surgery was required to correct cavus in two feet, to correct forefoot abduction in two, and to correct hindfoot valgus in one. Results were rated good in 12 feet and fair in six. Radiologically there was notable improvement in the anteroposterior and lateral talocalcaneal and tarso-first metatarsal angles. All patients were ambulant at last follow-up. In treating congenital vertical talus, good clinical and radiological results can be obtained with single stage correction of the hindfoot and midfoot deformities

Introduction. Ankle fusion presents a difficult problem in the presence of infection, inadequate soft tissue, poor bone stock and deformity. Nonunion and infection remains a problem even with internal fixation. Ilizarov frame provides an elegant solution to the problem with stable remote fixation while allowing lengthening, deformity correction and weight bearing. Patients and methods. Twenty-one consecutive patients were studied. The mean age at onset of disease was 52 years (range 4-70). Mean duration of the problem was 59.9 months (6-372). Aetiology included traumatic arthritis in 5, traumatic arthritis with osteomyelitis in 1, failed ankle fusion in 8, septic arthritis in 1, infected ankle fracture nonunion in 1, avascular necrosis of talus in 1, congenital deformity in 3 and failed ankle arthroplasty in 1. 15 patients had deformity of the ankle at the time of presentation. 15 of the 21 patients had either clinical or radiological evidence of infection. Treatment principles involved local excision, deformity correction with good alignment and soft tissue management. Static Compression was achieved with an Ilizarov frame while dynamic fixation was performed in 3 cases for lengthening. Antibiotics treatment was continued until union in the infected cases. On achieving union the frame was removed and a below knee cast was applied for 4 weeks. Results. Fusion was achieved in all cases at an average time of 5 months. One patient had below knee amputation for chronic pain. There was no recurrence of infection. Complications included pin site infection, lateral impingement, drug reaction and hind-foot pain. The results were assessed in terms of SF36 and Modified foot and ankle score. Conclusion. The Ilizarov ankle fusion is a reliable salvage procedure in difficult ankle problems

Tarsal fractures are rare in children. Clinical and radiographic evaluation of these injuries can be difficult. We present a retrospective study documenting all tarsal fractures presenting to an inner-city children’s hospital in the UK over a fifteen year period. Of 70 case notes retrieved from the hospital database, 7 patients were excluded due to inadequate data. This resulted in 69 tarsal injuries in 63 patients being included. Mean age at presentation was 9.3 years (2.5 – 13.9). 80% were male. 72% were calcaneal fractures, 12% cuboid, 9% navicular, 4% talus and 2% medial cuneiform. The main method of diagnosis was plain x-rays. Cause of injury was predominantly fall from height, crush or road traffic accident. 25% had another associated lower extremity injury. Three patients had bilateral tarsal injuries. Only 3% had upper limb injuries and there were no injuries with spinal involvement. Calcaneal fractures were treated with a short leg cast for a mean time of 4.1 weeks (2–6). Mean time to recovery was 5.7 weeks (2–20). Mean time to discharge from clinic was 7 weeks (2–40). There were two patients with open fractures requiring surgical debridement. One patient with a talar fracture had percutaneous fixation. Only one patient re-presented with pain following discharge. X-rays showed healing avascular necrosis of the proximal talus. Tarsal fractures are rare, usually benign and most require simple immobilisation for only a short period of time. Surgical intervention is only occasionally required in complex injuries. Complications and long term problems are rare, even following open injuries

Introduction: Ankle fusion presents a difficult problem in the presence of infection and poor bone stock. Ilizarov method provides stability with remote fixation and allows weight bearing. Patients and Methods: Fourteen consecutive patients were studied. The mean age at onset of disease was 50 years(range 4–70). 13 of the patients had either clinical or radiological evidence of infection prior to ankle fusion surgery. Mean duration of problem was 52 months(range 8–372). Aetiology included traumatic arthritis in 5, failed fusion in 6, septic arthritis in 1, infected ankle fracture nonunion in 1 and avascular necrosis of talus in 1. There were 10 males and 4 females. Local excision was followed by Ilizarov frame compression. Diagnosis of infection was based on microbiology and histology. Antibiotics treatment was continued until union. On radiological evidence of union the frame was dynamized and removed. Below knee cast was applied for 4 weeks. Results: 13 of 14 patients had complete ankle fusion at a mean period of 5 months. 1 patient who had partial fusion of the ankle had recurrence of infection requiring amputation. Complications included pin site infection, lateral impingement, deep infection, hind-foot pain and neuroma at amputation site. Conclusion: The Ilizarov ankle fusion is a reliable salvage procedure in difficult ankle problems

Introduction Ankle fusion presents a difficult problem in the presence of infection and poor bone stock. The Ilizarov method provides stability with remote fixation and allows weight bearing. Patients and method Fourteen consecutive patients were studied (10 males, 4 females). The mean age at onset of disease was 50 years (range 4–70). Thirteen of the patients had either clinical or radiological evidence of infection prior to ankle fusion surgery. Mean duration of problem was 52 months (range 8–372). Aetiology included traumatic arthritis in five, failed fusion in six, septic arthritis in one, infected ankle fracture non-union in one and avascular necrosis of talus in one. Local excision was followed by Ilizarov frame compression. Diagnosis of infection was based on microbiology and histology. Antibiotic treatment was continued until union. On radiological evidence of union the frame was dynamized and removed. A below-knee cast was applied for 4 weeks. Results At a mean period of 5 months, complete ankle fusion was found in 13/14 patients. One patient who had partial fusion of the ankle had recurrence of infection requiring amputation. Complications included pin site infection, lateral impingement, deep infection, hind-foot pain and neuroma at amputation site. Conclusion The Ilizarov ankle fusion is a reliable salvage procedure in difficult ankle problems

Introduction Pan-talar nailing for ankle arthrodesis has been advocated as a salvage procedure for post-traumatic arthrosis and Charcot’s joint. This study evaluates the outcome of pan-talar nails over a 4-year period. Method This is a retrospective study of 11 patients (13 ankles) who underwent pan-talar nailing between 2000 and 2004. Various factors including patient demographics, indications for surgery, operation details, complications, time to fusion and need for re-operation were recorded. Nine were reviewed at a mean follow-up of 22 months for clinical and radiological assessment; two patients had died. American Orthopaedic Foot and Ankle (AOFAS) hindfoot and SF-36 scoring systems were also used for evaluation. Results There were seven males and four females, with a mean age of 57 and 71 years, respectively. Eight patients had a pre-operative diagnosis of Charcot’s joint, one avascular necrosis of talus, one fixed deformity with polio, and one following fracture non-union. All 13 nails were locked at both ends. The average duration of operation was 2 hours and tourniquet time 1 hour 8 minutes. All patients were kept non-weight bearing in cast post-operatively for an average of 6 weeks. There were two cases of wound infection, one pulmonary embolism and one calcaneal fracture with infected non-union, which was treated with external fixation. There were no cases of nerve damage or septic arthritis. All nine patients were satisfied with the operation outcome at follow-up with a mean fusion duration of 28 weeks and an average AOFAS score of 75. Conclusion We conclude from this study that pan-talar nailing when performed for ankle arthrodesis as a salvage procedure produces a high rate of fusion with fewer complications

Introduction: Talus fractures are rare, but because of its peculiar anatomy the complications rate is high. Its arterial vascularisation can be compromised by trauma in displaced fractures or by the surgical approaches. Material and methods: Between 2001 and 2005, 30 patients with talus fractures were surgically treated in the Department of Orthopedics and Traumatology of Bucharest University Hospital. Sex ratio was 3 men/27 men. 27 fractures were closed. The mean age was 37 years (extremes: 17 – 54 years). Fractures were classified according to Hawkins classification: type I – 9 cases, type II – 13 cases, type III – 8 cases. All patients underwent clinical and radiological examinations at 3, 6 and 12 months and every year after this interval. Results: Hawkins type I fractures were treated by cast immobilization without weight bearing for 6 to 8 weeks. Orthopedic reduction was performed in emergency in order to avoid vascular and cutaneous complications. Hawkins type II and III fractures were surgically treated. Anterior or transmaleolar internal surgical approaches were used. After reduction, osteosynthesis with 2 or 3 compression screws was performed. Avascular necrosis of talus was observed in 6 cases (5 type III fractures, 1 type II case). Cutaneous complications were observed more frequently in type II and III fractures and in the neglected ones. Sepsis occurred in one case. 80% of cases with avascular necrosis developed osteoarthritic changes. Radiological union was observed in average at 6 months. Conclusions: The prognosis of fracture-dislocation of talus is reserved, because of the high rate of avascular necrosis and osteoarthritis. The most important factors associated with good results are short time interval between trauma and surgical treatment and a perfect reduction. The surgical approach must avoid extensive devascularization of talus neck. Prolonged cast immobilization and long time avoidance of weight bearing favourably influenced fracture union. The most important complication is avascular necrosis

Objective

The main object of this study was to use a geometric morphometric approach to quantify the left-right symmetry of talus bones.

The February 2013 Foot & Ankle Roundup³⁶⁰ looks at: replacement in osteonecrosis of the talus; ankle instability in athletes; long-term follow-up of lateral ankle ligament reconstruction; an operation for Stage II TPD; whether you should operate on Achilles tendon ruptures; Weil osteotomies and Freiberg’s disease; MRI scanning not sensitive for intra-articular lesions; and single-stage debridement and reconstruction in Charcot feet.