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KMID : 0386720080200010070
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Journal of the Korean Hip Society
2008 Volume.20 No. 1 p.70 ~ p.74
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Minimum 3 years Follow-up Results of Metal on Metal Hip Resurfacing Arthroplasty
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Park Jong-Seok
Woo Seung-Han
Choi Ho-Rim
Lee Sang-Seon
Hong Chang-Hwa
Kwon Sai-Won
Suh You-Sung
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Abstract
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Purpose: To present the survival of consecutive patients with a minimum of three years follow-up after undergoing a metal-on-metal hip resurfacing arthroplasty.
Materials and Methods: Twenty hips from twenty patients (male: 16, female: 4) who underwent metal-on-metal resurfacing arthroplasty between October 2001 and April 2004 were followed up for at least 3 years. The mean patient age was 49 years (range 23~70), and the mean follow-up period was 56 months (range 36~84 months). A clinical evaluation was performed using the Harris hip score, and radiologic evaluation was performed regularly after surgery with plain radiographs.
Results: The mean Harris hip score improved from 46 points (range 73~32) preoperatively to 94 points at final follow-up. There were no cases of radiolucency or osteolysis around the stem or acetabular cup, and there was no migration of the acetabular or femoral component. The average femoral stem-shaft angle was 135°(range 121°-139°), and at the final follow-up study, there was no change of the femoral stem.
Conclusion: In the short-term, metal-on-metal resurfacing arthroplasty performed on the basis of bone quality and patient selection, showed excellent clinical and radiological results. Hip resurfacing is an attractive option for young patients fearing a potentially difficult future revision or for more active patients with hip disease.
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KEYWORD
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Resurfacing arthroplasty, Metal-on-metal articulation
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