The circular arc shaped nail for fixing the tibiotalocalcaneal arthrodesis. After clinical results

Injury
Kaj KlaueThomas Mittlmeier

Abstract

Tibiotalocalcaneal arthrodesis is commonly considered a salvage option for a variety of hindfoot disorders involving the ankle and subtalar joint mostly with concomitant deformity. Retrograde interlocking nailing represents one of the biomechanically most stable fixation modes after reduction of hindfoot geometry. The considerable complications, non-union and revision rates at a moderate outcome reported even with modern retrograde nails underscore the idea that the development of an optimized retrograde nail may be warranted. A novel circular shaped nail was designed with a perfect fit to the reamed canal and the implant geometry which respects physiologic hindfoot anatomy and alignment. The present clinical series reports the experience and the clinical and radiographic outcomes after application of the implant in the first 30 consecutive patients. Assessments included validated versions of the AOFAS Ankle/Hindfoot Score and the Foot Function Index. Anatomical alignment was achieved and maintained in 29/30 cases with a single case of later loss of reduction due to a technical error which led to surgical reintervention two months after the index procedure. The overall union rate reached 93%. Two non-unions (one ankle, one subt...Continue Reading

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Citations

Oct 24, 2019·Foot & Ankle Specialist·John R SteeleJames K DeOrio

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