Abstract:
BACKGROUND:Osteonecrosis of the talus is a well-recognized pathology, which can result in significant hindfoot collapse resulting in poor function and pain. Treatment with intramedullary tibiotalocalcaneal arthrodesis (IMTCA) using a retrograde intramedullary nail is widely utilized for severe concomitant tibiotalar and subtalar pathologies. This study reports the results of ankle and hindfoot arthrodesis in patients with arthritis and deformity caused specifically by talar osteonecrosis. METHODS:Fourteen ankle and hindfoot arthrodeses with retrograde intramedullary nail were studied, with a mean follow-up of 26 months. Medical records were reviewed for operative technique, concomitant procedures, bone graft used, and postoperative complications including nonunion, infection, nerve injury, wound healing issues, and the need for additional surgeries. Clinical outcomes included Visual Analogue Scale for pain, the AOFAS Ankle/Hindfoot Score, and the SF-36 questionnaire. RESULTS:Over 80% of cases had osteonecrosis involving the entire body of the talus. In 4 cases tibiocalcaneal arthrodesis was performed, with the remaining talar head-neck portion fused to anterior aspect of tibia. Union was achieved in all cases. The mean preoperative VAS score was 6.9 (range 5 to 9, SD ± 1.5) decreasing to 1.7 (range 0 to 6, SD ± 2.2) postoperatively (P = .00008). The mean preoperative AOFAS score was 32.7 (range 20 to 46, SD ± 8.7), increasing to 72.1 (range 46 to 86, SD ± 10.1, P = .00003). The mean preoperative SF-36 physical component score was 30.5 (range 21 to 42, SD ± 6.9) increasing to 42.8 (range 20 to 60, SD ± 11.4) postoperatively (P = .02). Complications included 1 stress fracture, 4 hardware removals, and 1 superficial infection. CONCLUSION:Ankle and hindfoot arthrosis due to extensive talar AVN can be successfully treated with IMTCA.
journal_name
Foot Ankle Intjournal_title
Foot & ankle internationalauthors
Tenenbaum S,Stockton KG,Bariteau JT,Brodsky JWdoi
10.1177/1071100714558506subject
Has Abstractpub_date
2015-03-01 00:00:00pages
282-7issue
3eissn
1071-1007issn
1944-7876pii
1071100714558506journal_volume
36pub_type
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