Long-Term Durability of the CLS Femoral Prosthesis in Patients with Osteonecrosis of the Femoral Head

Abstract Ninety-five hips with cementless wedge-shaped tapered CLS stem were evaluated with a mean duration of 12.7 years (range, 10.7–17.3 years). All patients were young and diagnosed with osteonecrosis of the femoral head. The Harris hip score was 92 at the latest follow-up. A subsidence greater...

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Veröffentlicht in:The Journal of arthroplasty 2013-05, Vol.28 (5), p.828-831
Hauptverfasser: Han, Su-Il, MD, Lee, Ji-Ho, MD, Kim, Jun Woo, MD, Oh, Chang Wug, MD, Kim, Shin-Yoon, MD, PhD
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Sprache:eng
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Zusammenfassung:Abstract Ninety-five hips with cementless wedge-shaped tapered CLS stem were evaluated with a mean duration of 12.7 years (range, 10.7–17.3 years). All patients were young and diagnosed with osteonecrosis of the femoral head. The Harris hip score was 92 at the latest follow-up. A subsidence greater than 3 mm was found in 3 hips (3.2%). Focal femoral osteolysis was found in 12 hips (12.6%). Endosteal bone formation and bony pedestal were observed in 94 hips (98.9%) and in 26 hips (27.4%), respectively. With revision for stem loosening as the end point, the survivorship showed 98.9% (95% CI, range 96.9%–100%) at 13 years. Stem alignment and proximal femur morphology did not influence loosening of the stem ( p > 0.05).
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2012.09.017