Lateral Epicondylitis and Lateral Collateral Ligament Injury

Epizondylus Radial

Lateral epicondylitis, also called tennis elbow, is caused by degeneration and tearing of the common extensor ten-don.22 This condition often occurs as a result of repetitive sports-related trauma to the tendon, although it is seen far more commonly in nonathletes.9 In the typical patient, the degenerated extensor carpi radialis brevis tendon is partially avulsed from the lateral epicondyle.22 Scar tissue FIGURE 4.4. Clinically suspected tennis elbow in a patient who did not respond to a local...

Biomechanics Of The Elbow During Underhand Throwing

Although the traditional view is that underhand pitchers have minimal risk for sustaining pitching-related injuries, Loosli et al. found a high incidence of injuries to underhand pitchers.58 Thirty-one percent of these injuries were at or distal to the elbow. Unfortunately, research investigating the motion involved in underhand throwing is limited. Barrentine et al. estimated the amount of force experienced at the elbow during underhand softball pitching.59 During the acceleration phase, a...