EDKP 206 Lecture Notes - Lecture 5: Gapping, Extensor Retinaculum Of The Hand, Medial Collateral Ligament

• School: McGill University
• Department: Kinesiology&Physical Education
• Course: EDKP 206
• Professor: David J Pearsall

Document Summary

Medial and lateral condyles: articular with tibia. Patella surface: inferior surface, articulates with the patella. Patella articulates with the anterior/interior surfaces of condyles. Condyle differences: medial: articulating surface is longer anterior/posterior. Screw home mechanism: lateral: further anterior projection. Medial tibial plateau > lateral tibial plateau: increased loading on the medial side, helps decrease stress (= force/area) Intercondylar space is where cruciate ligaments attach. Tibial tuberosity = attachment of patellar tendon. Function: primary: increase contact (~2x) area b/w tibia and femur to decrease stress b/w femur and tibia, other functions. Tears = meniscal lesions: will cause clicking and locking of joints. Caused by shear forces produced during rotary motions b/w femur and tibia. 2/21/2013 2:00:00 pm fmodified hing joint 2 degrees of freedom (dof) Flexion/extension (transverse axis/sagittal motion: flexion: lateral rotation of femur wrt tibia. Posterior translation of contact point: extension: medial rotation of femur wrt tibia. Medial/lateral rotation (longitudinal axis: keeping femur static you move the toe in and out.