The Short Term Evaluation of Accolade TMZF Cementless Hip System

PurposeAccolade TMZF® has the wedged taper shape and is fixed at the middle part. We testified the short term result of Accolade® and investigated the factor of subsidence.Materials and MethodsWe treated 21 hips in 20 patients (6 males and 15 females) with Accolade stem. The mean age was 61.2 years old (40–79 years old). The mean follow-up period was 11.1 months (6–23 months), and those within 5 months after operation were excluded. We measured the width of the stem and the canal of femur at the level of the upper and the lower end of lesser trochanter, and 1 cm above the tip of the stem at operation and at the last follow-up, then calculated the canal fill ratios. We also measured the distance between the tip of the stem and the proximal end of greater trochanter, then calibrated it by directly sizing the acetabular component. The value that subtracted the distance at the last follow-up from the distance at operation meant subsidence. We performed multiple regression study about weight and the canal fill...