| No strength or gait benefit of two-incision THA: a brief followup at 1 year. | |
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MedLine Citation:
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PMID: 21076897 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Using comprehensive gait analysis and strength testing, we previously investigated the early (2-month) functional outcome after THA using two-incision and mini-posterior surgical approaches and found an advantage for the mini-posterior approach. Benefits included improved muscle strength, a less antalgic gait, and better hip function as reflected by changes in hip moments during level walking and stair climbing. We questioned how these differences in function would fare with longer followup. QUESTIONS/PURPOSES: We determined whether the observed early functional advantages for the mini-posterior technique over the two-incision technique were still present 1 year postoperatively. PATIENTS AND METHODS: We prospectively enrolled 22 patients with primary degenerative arthritis of the hip; of these, 21 completed gait and strength testing at 2 months, and 19 completed comprehensive gait and strength testing at 1 year (11 two-incision hips, eight mini-posterior hips). The 19 patients included 11 men and eight women with a mean age of 65 years (range, 40-85 years) and a mean (BMI) of 29 (range, 21-39). RESULTS: At 1 year postoperatively, the patients who had the mini-posterior THA had greater improvement in hip flexion strength and internal rotation strength, greater increase in hip flexor internal moment, and greater increase in single-leg stance time on level ground over the patients who had the two-incision THA. CONCLUSIONS: Compared with the two-incision approach, patients undergoing mini-posterior THA had persistently better function, including hip flexor and internal rotator muscle strength, hip flexor internal moment, and single-leg stance during level walking. LEVEL OF EVIDENCE: Level II, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence. |
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Authors:
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Aaron J Krych; Mark W Pagnano; Krista Coleman Wood; R Michael Meneghini; Kenton Kaufman |
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Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial Date: 2010-11-13 |
Journal Detail:
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Title: Clinical orthopaedics and related research Volume: 469 ISSN: 1528-1132 ISO Abbreviation: Clin. Orthop. Relat. Res. Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-03-04 Completed Date: 2011-05-12 Revised Date: 2012-09-20 |
Medline Journal Info:
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Nlm Unique ID: 0075674 Medline TA: Clin Orthop Relat Res Country: United States |
Other Details:
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Languages: eng Pagination: 1110-8 Citation Subset: AIM; IM |
Affiliation:
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Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Mayo Clinic, 200 First Street, SW, Rochester, MN 55905, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Arthroplasty, Replacement, Hip / methods* Biomechanics Female Gait* Hip Joint / physiopathology, surgery* Humans Male Middle Aged Minnesota Muscle Strength* Prospective Studies Range of Motion, Articular Recovery of Function Time Factors Torque Treatment Outcome Walking |
| Comments/Corrections | |
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