Computer-Assisted Total Knee Arthroplasty: Comparisons with the Conventional Technique
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概要
- 論文の詳細を見る
For successful total knee arthroplasty (TKA), it is very important to gain an accurate grasp of the mechanical axis of the lower limb and establish a suitable ligament balance. Recently, TKA using navigation systems has been developed to accomplish more accurate component placement and to achieve a better understanding of the mechanical axis. The purpose of this study was to compare the radiological results of computer-navigated TKA with those of conventional TKA. We prospectively evaluated 75 primary TKAs (75 subjects) that were performed using a cruciate-retaining prosthesis of the same model at our institution. The subjects were allocated alternately to a navigation group (37 knees) and a conventional group (38 knees). Postoperative radiographs were taken in the standing position at 12 weeks after surgery, and were evaluated in accordance with the report of Bäthis et al. [1]. No significant difference in preoperative profiles was observed between the two groups. At the postoperative radiographic evaluation, significantly better results were obtained in the navigation group with regard to the mechanical axis and the component, but the results were less conclusive in the lateral femoral component position. Our findings suggest that computer-navigated TKA is useful for obtaining more accurate results. However, the present study was limited by the small number of subjects and short follow-up period, and therefore further study involving more subjects and a longer-term follow-up will be needed.
著者
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Hirai Yoshimasa
Department Of Chemistry Hiroshima University
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Okawa Takahiro
Department Of Applied Chemistry Keio University
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NAGATA Kensei
Department of Orthopaedic Surgery, Kurume University School of Medicine
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HIGUCHI FUJIO
Department of Orthopaedic Surgery, Kurume University Medical Center
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GOTOH MASAFUMI
Department of Orthopaedic Surgery, Kurume University Medical Center
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MITSUI YASUHIRO
Department of Orthopedic Surgery, Kurume University Medical Center
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NAGATA KENSEI
Department of Orthopaedic Surgery ,Kurume University School of Medicine
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SHINOZAKI TOSHIRO
Department of Orthopaedic Surgery, Kurume University School of Medicine
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MITSUI YASUHIRO
Department of Orthopaedic Surgery, Kurume University School of Medicine
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MITSUI YASUHIRO
Department of Orthopaedic Surgery, Kurume University Medical Center
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