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Orthopedics. 2000 Jun;23(6):597-601.

The impact of loading on deformation about posteromedial meniscal tears.

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Children's Hospital of Philadelphia, PA, USA.


To simulate the effects of partial weight bearing on meniscal repair, full-thickness tears were produced in the posteromedial aspect of seven ACL-intact cadaveric knees. Following suture repair, metal markers were imbedded to index the position of the tear. A radiolucent chamber was used to position and load each knee for computed tomography scanning at flexion angles of 0 degrees, 30 degrees, and 60 degrees with and without a load force of 100 lb. Sutures were removed and the tests repeated. Changes in marker distances were obtained for each test condition. Loading produced average dimensional changes of < or =0.5 +/-0.6 mm in either sutured or unsutured menisci. Based on the Friedman test, neither flexion angle, loading, nor suture exerted a significant impact (P> or =.52). These data support clinical accelerated rehabilitation programs previously published. Therefore, partial weight bearing during convalescence is tenable.

[Indexed for MEDLINE]

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