Biomechanics of the elbow

This chapter introduces the anatomy, function, and pathomechanics of the elbow. First, the bone, joints, muscles, tendons, ligaments, and joint capsules in the elbow are reviewed. The normal functions of the elbow are introduced from aspects of kinematics, kinetics and joint stability and constraint. The elbow joint configuration, joint motion, and joint force are integrated to provide joint stability. The understanding of normal elbow function provides information and applications in investigation of the pathomechanics of the elbow. The abnormal joint motion and instability including valgus instability, posterolateral rotatory instability, varus posteromedial rotatory instability, elbow dislocation, elbow fracture, and elbow joint arthritis are examined. The tendinopathy and cubital tunnel syndrome are also important to be explained from pathomechanics point of view.