Anterior Cruciate Ligament
نویسندگان
چکیده
Many methods of reconstruction for ACL deficiency have been described, but little is known about their biomechanical properties. We examined extra-articular (EA), intraarticular (IA) and combined (EA + IA) reconstructions in ten cadaver knees after the ACL had been ruptured by the performance ofa rapid anteriordrawer movement. Stabifity at each stage before and after rupture and reconstruction was tested by anterior drawer, Lachman, varus-valgus and tibial rotation tests. Both IA and IA + EA reconstructions restored normal stability, while EA reconstructions improved stabffity but did not restore it to normal. The addition of an EA procedure to an IA procedure made no difference to knee stabffity. We conclude that in cases of isolated ACL deficiency there is no biomechanicai basis for EA reconstruction, either alone orin addition to an IA reconstruction.
منابع مشابه
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