KNES 372 Lecture Notes - Lecture 5: Anterior Cruciate Ligament Injury, Hyaline Cartilage, Unhappy Triad
22 Sep 2018
School
Department
Course
Professor
Document Summary
Anterior cruciate ligament (acl) injury: acl 2 bundles: anteromedial bundle resists tibial anterior translation at 90 and posterolateral bundle resists tibial rotation. Prevention of knee ligament injuries: 64% reduction in the rate of acl injury (rr 0. 36 95% ci 0. 15 to 0. 85) was seen in the intervention group. Intervention = neuromuscular warm-up exercises before practices and games. Joint dislocation / joint subluxation: excessive load placed on the passive subsystem can cause the bones forming a joint to abnormally translate or luxate relative to one another, dislocation (complete dislocation, subluxation (partial dislocation) Invariably results in damage to passive subsystem structures: severity of damages depends on the direction + magnitude of luxation force and inherent stability of the joint. Shoulder dislocation: typical mechanisms resulting in the humeral head coming forward (ex: direct blow to the posterior aspect of the shoulder or landing on outstretched arm, diagnosis may be anterior dislocation or fracture dislocation, treatment begins with price/police.
