Lateral epicondylitis, also known as tennis elbow, is an overuse syndrome of the common extensor tendon and predominantly affects the extensor carpi radialis brevis (ECRB) tendon. Epidemiology Lateral epicondylitis occurs with a frequency seven...
Increased signal intensity of the origin of the extensor carpi radialis brevis tendon, consistent with tendinosis, commonly known as Tennis Elbow.
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Lateral epicondylosis (also referred to as lateral epicondylitis or tennis elbow) is the most common cause of elbow pain and is frequently seen in athletes who throw, most commonly adults over 35 years of age (59,60).
MRI. Described features on MRI include 2: thickening and increased signal intensity on both T1 and T2 weighted sequences of the common flexor tendon. soft tissue edema around the common flexor tendon - peritendonitis. marrow edema in the medial epicondyle. muscle atrophy may occur in longstanding cases.
Tennis elbow is caused by the tendons overloading due to the repetitive motions of the arms and wrist (21). It is a more severe strain injury due to the frequent contraction of the forearm muscles (22). This injury may induce a series of small tears in the tendons attached to the muscles (23). Tennis elbow is most common in carpenters, butchers, plumbers, and painters (24).
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Medial epicondylitis, although commonly termed golfer’s elbow, may occur in throwing athletes, tennis players, and bowlers, as well as in workers whose occupations (eg, carpentry) result in similar repetitive motions ( 7, 9 ). Lateral epicondylitis occurs with a frequency seven to 10 times that of medial epicondylitis ( 4, 9 ). Both lateral and medial epicondylitis most commonly occur in the 4th and 5th decades of life, without predilection with regard to sex.
Lateral epicondylitis is also known as the tennis elbow, although in 95% of cases it is seen in non-tennis players. It is due of chronic stress to the common extensor tendon, which results in partial tearing and tendinosis. Typically, the extensor carpi radialis brevis is the component that is involved.
While lateral epicondylitis is overwhelmingly encountered in the workplace, it is popularly associated with tennis and is thus often referred to as “tennis elbow”. 1. Lateral epicondylitis is a degenerative condition, which affects the extensor tendons of the hand and wrist at their origin.