| The effects of different weight-bearing regimes on press-fit cup stability: a randomised study with five years of follow-up using radiostereometry. | |
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MedLine Citation:
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PMID:Â 22143314 Â Â Â Owner:Â NLM Â Â Â Status:Â MEDLINE Â Â Â |
Abstract/OtherAbstract:
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PURPOSE: There is little evidence to support immediate weight bearing after uncemented total hip arthroplasty (THA). METHODS: Thirty-seven patients with unilateral osteoarthritis of the hip received a press-fit cup. Cup stability was assessed with radiostereometry (RSA) over five years. Patients were randomised to immediate full weight bearing, or partial weight bearing for three months. RESULTS: At five years, we found no difference in micro-motion as assessed with radiostereometry. Numerically, there was more proximal translation and increased inclination with immediate weight bearing, but these values barely exceeded the precision limit for the method. Pooled data for the two groups revealed translations of 0.1-0.3 mm and rotations of 0.2-0.3° over the five year follow-up period. CONCLUSIONS: We found no adverse effects of immediate weight bearing after THA in relation to stability of these press-fit cups. Early mobilisation might have other advantages. |
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Authors:
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Olof Wolf; Per Mattsson; Jan Milbrink; Sune Larsson; Hans Mallmin |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial    Date: 2011-12-07 |
Journal Detail:
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Title: International orthopaedics    Volume: 36    ISSN: 1432-5195    ISO Abbreviation: Int Orthop    Publication Date: 2012 Apr |
Date Detail:
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Created Date:Â 2012-03-26 Â Â Â Completed Date:Â 2012-07-19 Â Â Â Revised Date:Â 2013-05-22 Â Â Â |
Medline Journal Info:
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Nlm Unique ID: 7705431    Medline TA: Int Orthop    Country: Germany    |
Other Details:
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Languages: eng    Pagination: 735-40    Citation Subset: IM    |
Affiliation:
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Surgical Sciences, Orthopaedic, Uppsala, Sweden, olof.wolf@akademiska.se |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Arthroplasty, Replacement, Hip / instrumentation*, methods*, rehabilitation Cementation Early Ambulation Female Hip Joint / physiopathology, radiography, surgery Hip Prosthesis* Humans Male Middle Aged Osteoarthritis, Hip / surgery* Prosthesis Design* Prosthesis Failure Radiostereometric Analysis Stress, Mechanical Treatment Outcome Weight-Bearing / physiology |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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