title: 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 than 3mm 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).
authors: Department of Orthopedic Surgery, Daegu Woori Hospital, Daegu, Korea.
authors: Su-Il
authors: SI
authors: Han
authors: Ji-Ho
authors: JH
authors: Lee
authors: Jun Woo
authors: JW
authors: Kim
authors: Chang Wug
authors: CW
authors: Oh
authors: Shin-Yoon
authors: SY
authors: Kim
mesh_terms: D000328:Adult; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods; D005260:Female; D005271:Femur Head Necrosis / Q000473:pathology / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D012086:Reoperation; D055815:Young Adult