Long-Term Survivorship Analysis of the Cementless Spotorno Femoral Component

in Patients Less Than 50 Years of Age

J. Elizabeth Biemond, MD, Dean F.M. Pakvis, MD, Gijs G. van Hellemondt, MD, PhD, and Pieter Buma, PhD

The Journal of Arthroplasty, volume 26 No. 3 2011

Abstract: The long-term survival of the cementless Spotorno (CLS) femoral component (Zimmer Inc, Warsaw, USA) was evaluated in a consecutive series of 85 patients (100 hips) less than 50 years of age. The mean follow-up was 12.3 years. Two patients (3 hips) were lost to follow-up, and 3 (4 hips) died. The survival rate of the CLS stem was 96.9% (confidence interval [CI], 93.6%- 100%) after 13 years based on revision of the stem for any reason. The survival of the stem with revision for aseptic loosening as the end point was 97.9% (CI, 95.1%-100%) at 13 years. The mean Harris hip score at time of follow-up was 94. The long-term survival of the CLS stem is excellent in patients less than 50 years of age.