Journal
OPERATIVE TECHNIQUES IN ORTHOPAEDICS
Volume 15, Issue 1, Pages 29-35Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1053/j.oto.2004.10.009
Keywords
ACL; rotational laxity; measurement; biomechanics; kinematics
Categories
Funding
- Arthritis Research Campaign
- Singapore Government
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The anterior cruciate ligament (ACL) is the primary restraint to tibial anterior translation ( anterior draw). Tibial anterior draw is normally accompanied by a coupled tibial internal rotation. Both internal rotation and anterior translation can be increased by rupture of the ACL, resulting in a large movement of the mobile lateral tibial plateau. Arthroscopic ACL reconstruction adequately restores the anterior draw; however, the peripheral structures that are the primary restraints to tibial rotation often are neglected. Recent work has shown that a residual or mini pivot shift can remain after successfully restoring the anterior-posterior laxity of the knee. The search for a better restoration of normal kinematics has reawakened interest in double-bundle reconstructions. Although biomechanical studies have demonstrated that this type of reconstruction may better restore the normal kinematics, there is as yet no clinical evidence. Draw testing should now be superseded by kinematics measures of both rotations and translations of the knee with quantified loads to provide objective measures that better assess the efficacy of new surgical techniques. Oper Tech Orthop 15:29-35 (C) 2005 Elsevier Inc. All rights reserved.
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