Total Knee Replacement After High Tibial Osteotomy A Report of 3 Cases

Abstract

Three patients (four knees) with total knee replacement (TKR) following high tibial osteotomy (HTO) are reported. Mean age was 67 years and average period between HTO and TKR, 75 months.
Eversion of the patellar mechanism at operation had been diffcult, the primary reason being that the patellar tendon was abnormally short. Radiography indicated the average patellar index to be 0.91 (range, 0.84 to 1.09), as measured by the Insall-Salvati index. In two knees, lateral retinacular release was early required to facilitate eversion of the patella and patellar tendon.