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KMID : 0386720030150020100
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Journal of the Korean Hip Society
2003 Volume.15 No. 2 p.100 ~ p.107
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Total Hip Arthroplasty with Dual-Tapered Cementless Femoral Component: Minimal 7-Year Follow-up Results
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Hwang Sung-Kwan
Lee Phil-Eun
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Abstract
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Purpose: The purpose of this study was to assess the long term clinicoradiological results of a total hip replacement using the double tapered cementless Mallory-Head system.
Method: The study comprised of 47 patients that underwent 50 hip operations using the double tapered cementless Mallory-Head system. They were examined, clinicoradiologically, and followed up for a minimum of 7 years after the primary cementless total hip arthroplasty.
Result: The Harris hip scores for the 50 hips increased from 58 to 94 points at 2 years after the procedure, and to 91 at the final examination. Thigh pain was noticed in 5 cases. There were 42 cases (84%) of spot weld formation, 5 (10%) of stress shielding, 2 (4%) of cortical hypertrophy, 3 (6%) of pedestal formation and 1 (2%) of femoral radiolucency. There were also 4 cases (8%) of femoral osteolysis, of which three underwent a revisional operation.
Conclusion: The clinical and radiological evaluations of the total hip replacements, using the double tapered cementless Mallory-Head system 7 years postoperatively showed good results, but for longer period usage, further evaluations will be required.
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KEYWORD
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Mallory-Head, Tapered, Cementless, Total hip replacement(arthroplasty)
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