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Selected Instructional Course Lecture   |    
Repair of Complex and Avascular Meniscal Tears and Meniscal Transplantation
Frank R. Noyes, MD1; Sue D. Barber-Westin, BS1
1 Cincinnati Sportsmedicine Research and Education Foundation, 10663 Montgomery Road, Cincinnati, OH 45242. E-mail address for S.D. Barber-Westin: sbwestin@csmref.org
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Disclosure: The authors did not receive any outside funding or grants in support of their research for or preparation of this work. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity.

An Instructional Course Lecture, American Academy of Orthopaedic Surgeons
Printed with permission of the American Academy of Orthopaedic Surgeons. This article, as well as other lectures presented at the Academy's Annual Meeting, will be available in February 2011 in Instructional Course Lectures, Volume 60. The complete volume can be ordered online at www.aaos.org, or by calling 800-626-6726 (8 a.m.-5 p.m., Central time).

Copyright ©2010 American Society for Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2010 Apr 01;92(4):1012-1029
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Extract

The importance of the menisci in the human knee is well understood. The menisci occupy 60% of the contact area between the tibial and femoral cartilage surfaces and transmit >50% of joint compression forces. Following meniscectomy, the tibiofemoral contact area decreases by approximately 50%, while the contact forces increase two to threefold1-6. Removal of as little as 15% to 34% of a meniscus increases contact pressures by >350%7. Total lateral meniscectomy results in a 45% to 50% decrease in the total contact area and a 235% to 335% increase in the peak local contact pressure8.
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    Accreditation Statement
    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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