Validation of a new protocol for navigated intraoperative assessment of knee kinematics
Background: This study describes a novel method for accurate evaluations of knee kinematics during arthroscopic reconstructions of anterior cruciate ligament (ACL). Methods: Quantitative evaluation of knee stability was estimated by experimental validation on 30 volunteers and by statistical analysis of test repeatability. Results: Proposed method present short learning time, is minimally invasive and thus suitable for arthroscopic techniques. Computed laxity showed a repeatability of 1.5 for varusvalgus, 3 for internalexternal, and 2mm for anteroposterior tests. Conclusions: This method represents a reliable quantification of knee kinematics in surgery, able to improve present intra-operative assessment of knee stability.
navigation knee kinematics acl stability laxity computer-assisted surgery kinematic evalution