Results of Cementless Total Hip Arthroplasty using Osteonics Prosthesis.

DOI 9 References
  • Yamaguchi Tetsuo
    Department of Orthopaedic Surgery, Nagasaki Chuo National Hospital
  • Ide Syuya
    Department of Orthopaedic Surgery, Nagasaki Chuo National Hospital
  • Kushida Manabu
    Department of Orthopaedic Surgery, Nagasaki Chuo National Hospital
  • Maeda Kazushige
    Department of Orthopaedic Surgery, Nagasaki Chuo National Hospital
  • Sumi Mitsuhiro
    Department of Orthopaedic Surgery, Nagasaki Chuo National Hospital
  • Motokawa Satoru
    Department of Orthopaedic Surgery, Nagasaki Chuo National Hospital

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  • Ｏｓｔｅｏｎｉｃｓ型人工股関節の術後成績　　ステム側について

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We present the results of 42 total hip arthroplasties using Osteonics femoral components with a mean follow-up period of 25 months (range, 12 to 60 months). Femoral components with arc deposition (AD) have been evaluated in 14 patients, while those with hydroxyapatite (HA) coating in 28 patients. The clinical results of both femoral components were excellent. The average Japan Orthopaedic Association hip score increased from 44 prior to the operation to 90 at the time of the last follow-up. All radiographs of both groups were measured to examine the presence of reactive line, cancellous condensation and subsidence. The reactive line occurred in 2 hips (14%) of the AD group at zones I and VII which contain a porous coating of the stem, but none in the HA group after 1 to 2 years. Cancellous condensation occurred in the HA group, more than the AD group, significantly at zone II. Our radiological results show that the HA coating can provide durable implant fixation.

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