Analysis of the Effect of Tibial Stem Length on Coronal Plane Deformity of the Tibial Component in Total Ankle Arthroplasty

Foot & Ankle International
Gregory BerletAllen M Ferrucci

Abstract

Coronal plane deformity is common in patients who undergo total ankle arthroplasty. The correction of this deformity is paramount to the long-term survival of the implant. Coronal plane correction is achieved with soft tissue balancing and, in some part, is maintained through articular geometry constraint. The purpose of this study was to assess the influence of tibial component stem length on the coronal plane stability. A consecutive case series of stemmed implants that met inclusion criteria were reviewed to determine the correction and maintenance of the correction of coronal plane deformity with special emphasis on the effect of modular tibial stem lengths of 2 and >2 segments. Twenty patients received a tibial component with 2 stem segments, and 23 patients received a tibial component with >2 stem segments. At an average patient age of 62.1 years at implantation, there was no significant difference between the 2 cohorts with respect to preoperative deformity or demographics. Our case series had a mean coronal deformity of 5.7 degrees, with valgus being more common than varus. At a mean final radiographic follow-up of 266.3 days after the first postoperative weightbearing radiography, coronal deformity increased by 0.4 deg...Continue Reading

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Citations

Nov 15, 2020·The Journal of Foot and Ankle Surgery : Official Publication of the American College of Foot and Ankle Surgeons·Eric SoGregory C Berlet

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Methods Mentioned

BETA
total ankle arthroplasty
total ankle

Software Mentioned

INBONE

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