Studies of polyurethane urea bands for ACL reconstruction.

The present report describes the mechanical tests, in vitro and in vivo studies of a poly(urethane urea) (PUUR) intended for clinical use in anterior cruciate ligament (ACL) reconstruction. In the mechanical tests, no evidence of severe fatigue was observed after repeated cyclic loading. Testings for mutagenicity and delayed contact hypersensitivity were found negative.