| High-flexion TKA in patients with a minimum of 120 degrees of pre-operative knee flexion: outcomes at six years of follow-up. | |
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MedLine Citation:
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PMID: 20972786 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We prospectively evaluated outcomes of high-flexion total knee arthroplasty in 165 patients who had advanced arthritis with a minimum 120-degree pre-operative knee flexion, with a mean follow-up of 77 months. Patients were divided into two groups according to their ability to perform full-range (heel-to-buttock) pre-operative knee flexion (group A) and the inability to do so (group B). The overall clinical rating was "excellent" in 96% of patients and "good" in 4% of patients. Mean maximum knee flexion decreased from 137.9° to 134.8°, with no statistical difference between pre- and post-operative knee flexion. However, patients in group A had significantly decreased knee flexion (146.2° vs. 135.0°, p < 0.001), whereas patients in group B exhibited no change in knee flexion (133.7° vs. 134.7°, p = 0.14). We found that 14.7%, 36.5% and 43.0% of the studied patients could engage in kneeling, Thai polite style sitting and cross-legged sitting, respectively, with no significant differences between groups A and B. The survival rates for any reoperation and prosthesis-related problem (such as early loosening) at six years were 98.3% and 100%, respectively. At six-year follow-up in patients with well preserved pre-operative knee flexion, the high-flexion knee prosthesis provided a favourable outcome without improving knee flexion. |
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Authors:
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Aree Tanavalee; Srihatach Ngarmukos; Saran Tantavisut; Arak Limtrakul |
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Publication Detail:
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Type: Journal Article Date: 2010-10-24 |
Journal Detail:
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Title: International orthopaedics Volume: 35 ISSN: 1432-5195 ISO Abbreviation: Int Orthop Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-08-22 Completed Date: 2011-12-15 Revised Date: 2012-09-28 |
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: 1321-6 Citation Subset: IM |
Affiliation:
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Department of Orthopaedics, Chulalongkorn University, Bangkok 10330, Thailand. areetana@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Arthroplasty, Replacement, Knee / methods*, rehabilitation Equipment Failure Analysis Female Humans Kaplan-Meier Estimate Knee Joint / physiopathology, surgery* Knee Prosthesis Male Middle Aged Osteoarthritis, Knee / physiopathology, surgery* Preoperative Period Prospective Studies Range of Motion, Articular / physiology* Treatment Outcome Weight-Bearing |
| Comments/Corrections | |
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