Efficiency and safety of sliding osteotomy of the lateral femoral condyle in total knee arthroplasty in patients with fixed valgus deformity (Krackow type III)

Abstract

Introduction This article is devoted to the problem of total knee arthroplasty in patients with severe valgus deformity (Krackow type III). Methods We analyzed mid-term results of 12 total knee arthroplasties combined with sliding osteotomy of the lateral femoral condyle and distalization of the lateral collateral ligament. Treatment results were measured with KSS and WOMAC scores. Results We had excellent and good results in 11 cases but one was complicated with periprosthetic fracture of the femur. Discussion Up-to-date, there are various techniques of soft-tissue release in total knee arthroplasty proposed. These techniques differ in the point of release and the power of effect. However, an adequate balance is not always achievable in severe valgus deformity. Therefore, implants providing enhanced frontal stabilization are required (CCK/VVC).