Document Detail

Biomechanical evaluation of a high tibial osteotomy with a meniscal transplant.
MedLine Citation:
PMID:  21618938     Owner:  NLM     Status:  In-Process    
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.
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:
Type:  Journal Article    
Journal Detail:
Title:  The journal of knee surgery     Volume:  24     ISSN:  1538-8506     ISO Abbreviation:  J Knee Surg     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-05-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137599     Medline TA:  J Knee Surg     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  45-53     Citation Subset:  IM    
Division of Sports Medicine, Department of Orthopedics, Rush University Medical Center, 1611 W. Harrison Street, 2nd Floor, Chicago, IL 60612, USA.
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