| Biomechanical evaluation of a high tibial osteotomy with a meniscal transplant. | |
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MedLine Citation:
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PMID: 21618938 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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This study determines the biomechanical advantage and the optimal configuration of a high tibial osteotomy (HTO) and meniscus transplantation performed concurrently. Six cadaver knees were placed in a spatial frame, and an HTO was completed. Loading points between a mechanical 6 degrees of varus and 8 degrees ofvalgus were loaded to 800 N for medial meniscal intact, meniscectomized, and transplanted states. Posterior slope was also increased by 3 degrees in these specimens. Contact data was recorded. Peak pressures significantly increased in the meniscectomized state in every degree of varus/valgus (p < 0.05). For both peak and total medial compartment pressures, there was a significant drop (p < 0.001) between neutral and 3 degrees of valgus. Lateral compartment pressures linearly increased from varus to valgus orientation. There was no significant change in the pressure profile of the knee with a 3-degree increase in posterior slope. This biomechanical study confirms the hypothesis that an HTO improves the peak pressures in the medial compartment at all degrees of varus/valgus alignment in the setting of meniscal transplantation. Furthermore, the largest decrease in medial pressures was between neutral and 3 degrees of valgus, suggesting that perhaps neutral aligned knees could benefit from an HTO. |
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Authors:
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Geoffrey S Van Thiel; Rachel M Frank; Aman Gupta; Neil Ghodadra; Elizabeth F Shewman; Vincent M Wang; Bernard R Bach; Nihkil N Verma; Brian J Cole; Matthew T Provencher |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The journal of knee surgery Volume: 24 ISSN: 1538-8506 ISO Abbreviation: J Knee Surg Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-05-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137599 Medline TA: J Knee Surg Country: Germany |
Other Details:
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Languages: eng Pagination: 45-53 Citation Subset: IM |
Affiliation:
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Division of Sports Medicine, Department of Orthopedics, Rush University Medical Center, 1611 W. Harrison Street, 2nd Floor, Chicago, IL 60612, USA. Geoffrey_vanthiel@rush.edu |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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