Abstract |
Total hip arthroplasty (THA) longevity is the primary concern in young patients. Metal-on- metal articulations were reintroduced to reduce polyethylene particle-induced osteolysis and improve survivorship; to date, based on issued reports, this strategy appears to have been successful. In this study, the authors investigated metal-on- metal articulation survivorship and osteolysis incidence in young patients (19-50 years old at index operations) and retrospectively reviewed cementless metal-on- metal THAs in 70 patients (78 hips) with a mean follow-up of 12.4 years. Metasul articulation was used with the Wagner acetabular component in all. Survivorship with revision for any cause was 98.7% (95% confidence interval, 98%-100%), and survivorship due to the development of osteolysis for any lesion was 97.5% (95% confidence interval, 95%-99%). Mean Harris hip score improved from 51 to 95 points at final follow-up. The findings of this study indicate that outcomes of cementless THA with a metal-on- metal bearing in young patients are satisfactory. However, longer-term studies in larger cohorts are required to determine whether metal-on- metal articulations are really a favorable option in young patients.
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Authors | Kyu-Tae Hwang, Young-Ho Kim, Yee-Suk Kim, Il-Yong Choi |
Journal | The Journal of arthroplasty
(J Arthroplasty)
Vol. 26
Issue 8
Pg. 1481-7
(Dec 2011)
ISSN: 1532-8406 [Electronic] United States |
PMID | 21414748
(Publication Type: Journal Article)
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Copyright | Copyright © 2011 Elsevier Inc. All rights reserved. |
Chemical References |
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Topics |
- Adult
- Age Factors
- Arthritis, Rheumatoid
(surgery)
- Arthroplasty, Replacement, Hip
(instrumentation, methods)
- Cohort Studies
- Female
- Femur Head Necrosis
(surgery)
- Follow-Up Studies
- Hip Joint
(diagnostic imaging, surgery)
- Hip Prosthesis
- Humans
- Incidence
- Male
- Metals
- Middle Aged
- Osteoarthritis, Hip
(surgery)
- Osteolysis
(epidemiology, surgery)
- Osteonecrosis
(surgery)
- Prosthesis Design
- Radiography
- Reoperation
- Retrospective Studies
- Treatment Outcome
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