| Foot pressure distribution in patients with gonarthrosis. | |
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MedLine Citation:
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PMID: 22265447 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: When standing, leg alignment is controlled by supinating or pronating the subtalar joint, corresponding to valgus or varus deformity of the knee joint. However, in the gait cycle, it is not clear whether the abnormal alignment can be compensated. OBJECTIVE: The purpose of this study was to evaluate the control of leg alignment in the latter half of the gait cycle. METHODS: Forty-six patients (46ft) with unilateral gonarthrosis (16 men, 30 women; mean age, 69 years) were evaluated for foot pressure distributions of the forefoot and midfoot. The apparatus used was a walkway in which a tactile force- and pressure-measurement system was installed. Patients were classified by femorotibial angle, pronation-supination index (PSI), foot pressure distribution of the point of the metatarsal head, and passage point of the center of pressure (COP) at the toe. RESULTS: A larger femorotibial angle was associated with a larger PSI, and contact such that the load is applied more strongly to the pressure points of the metatarsal heads laterally. In addition, with a larger femorotibial angle, COP at the toe tended to pass through the second toe. In other words, foot sole contact is significantly more lateral with varus knee, whereas foot sole contact tends to be more medial with valgus knee. CONCLUSIONS: Analysis revealed that severe abnormal leg alignment was not sufficiently compensated for by the forefoot and midfoot in the latter half of the gait cycle. When treating the forefoot and midfoot, precautions are necessary in patients with knee deformities. |
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Authors:
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Tsutomu Motooka; Hirofumi Tanaka; Shuya Ide; Masaaki Mawatari; Takao Hotokebuchi |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-18 |
Journal Detail:
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Title: Foot (Edinburgh, Scotland) Volume: - ISSN: 1532-2963 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9109564 Medline TA: Foot (Edinb) Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Orthopedic Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga-shi, Saga 849-8501, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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