Short-term Results of Cementless Total Hip Arthroplasty in Rheumatoid Arthritis Results of Femoral Components

DOI 10 References
  • Tashiro Yasutaka
    Department of Orthopedic Surgery and Clinical Research Institute, National Kyushu Medical Center
  • Miyahara Hisaaki
    Department of Orthopedic Surgery and Clinical Research Institute, National Kyushu Medical Center
  • Esaki Yukio
    Department of Orthopedic Surgery and Clinical Research Institute, National Kyushu Medical Center
  • Hirata Goh
    Department of Orthopedic Surgery and Clinical Research Institute, National Kyushu Medical Center
  • Asakura Tohru
    Department of Orthopedic Surgery and Clinical Research Institute, National Kyushu Medical Center
  • Watanabe Tetsuya
    Department of Orthopedic Surgery and Clinical Research Institute, National Kyushu Medical Center

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Other Title
  • ＲＡ股に対するセメントレス人工股関節置換術の短期成績―ステム側のＸ線学的検討
  • Results of Femoral Components
  • — ステム側の X 線学的検討

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Abstract

Fifty-seven primary cementless total hip arthroplasties (THAs) were performed in 48 patients with rheumatoid arthritis. The average length of follow-up was 2.4 years (range; 1.1 to 4.4 years).<br>The average age of these 48 patients at the time of surgery was 56.9 years (range; 36 to 78 years). In all patients Kyocera Per Fix HA prosthesis was used.<br>Clinical evaluation based on the JOA score indicated significant improvement from 36.8 points preoperatively to 67.4 points postoperatively. Three patients (5%) complained of thigh pain. There was no evidence of roentgenographic failure such as femoral component subsidence, loosening or osteolysis. Spot welds contacting the porous surfaces were observed in 52 hips (91%). None of the hips showed radiolucent lines adjacent to the porous-surfaced portion of the stems. All femoral components showed bone ingrown fixation. These findings suggest that cementless stem may be successful in rheumatoid patients.

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