Effects of Continuous Passive Motion on Anterior Laxity Following ACL Reconstruction with Autogenous Patellar Tendon Grafts

in Journal of Sport Rehabilitation
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Continuous passive motion (CPM) is a modality used in the treatment, management, and rehabilitation of a variety of orthopedic problems. Recently, CPM devices have been therapeutically employed immediately after autogenous patellar tendon reconstruction of the anterior cruciate ligament (ACL). Whereas the concept of early motion is indicated, there is a concomitant concern that the implementation of immediate passive motion may stretch or rupture the graft. Twenty subjects scheduled to undergo ACL reconstruction were randomized into two groups (10 CPM and 10 non-CPM). All subjects performed the same postoperative rehabilitation with the exception of the CPM. Objective anterior tibial translation measurements were recorded with a KT-1000 for a 30-1b (133.5-N) Lachman test at 1 year postreconstruction. The results of this study indicated that the implementation of immediate continuous passive motion did not have any deleterious effects on the stability of the ligament reconstruction.

Michael R. McCarthy is with McCarthy Orthopedic Rehabilitation and Sports Medicine, Inc., 415 A Ulumiu St., Kailua, HI 96734. Barton P. Buxton is with the University of Hawaii at Manoa, 1337 Lower Campus Rd., Honolulu, HI 96822. Carlan K. Yates is with the Oklahoma Center for Athletes, 711 Stanton L. Young Blvd., Suite 310, Oklahoma City, OK 73104. Direct correspondence to Barton P. Buxton.

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