Micro tears in which muscle tendon are most commonly associated with medial epicondylitis?

Medial epicondylitis, often referred to as "golfer's elbow," involves the degeneration and microtears of the tendons that attach to the medial epicondyle of the humerus. The condition primarily affects the tendons of the forearm muscles responsible for flexing the wrist and fingers. The proximal flexor carpi ulnaris tendon is one of the key structures involved in this condition, as it originates from the medial epicondyle.

In medial epicondylitis, the repetitive overuse of the forearm muscles, particularly those that facilitate wrist flexion, leads to microtrauma in these tendons. The proximal flexor carpi ulnaris tendon plays a critical role because it is one of the tendons that commonly undergoes stress and strain from activities that cause excessive wrist flexion, such as golfing or gripping. This results in inflammation and pain at the site of tendon attachment to the bone.

Understanding the anatomy and functional biomechanics of the forearm muscles illustrates why the proximal flexor carpi ulnaris tendon is central to the pathophysiology of medial epicondylitis, highlighting its significance in the injury. This also differentiates it from other tendons, such as those attached to the