Medial epicondylitis

Medial epicondylitis (also known as golfer's elbow) is an angiofibroblastic tendinosis of the common flexor- pronator tendon group of the elbow.

It is less common than lateral epicondylitis. As with lateral epicondylitis, it typically occurs in the 4th to 5th decades of life. There is no recognized gender predilection.

Patients typically present with insidiously medial elbow pain. The pain can worsen with wrist flexion and forearm pronation activities. Patients may offer a history of sports activities, including golf, overhead throwing sports, and racket sports. The patient's history may include the occurrence of an acute sports injury or acute trauma.

It is thought to occur from valgus forces transmitted to the medial elbow during forearm pronation and wrist flexion may exceed the strength of the muscles, tendons, and supporting ligaments. Cumulative stress or overuse can lead to tendinosis involving the musculotendinous junction of the flexor-pronator muscle group at the medial epicondyle, with microtrauma and partial tearing that may progress to a full-thickness tendon tear.

MR imaging is the most widely used modality for assessment, although ultrasound also may be performed.

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May be identified as outward bowing, heterogeneous echogenicity, or thickening of the common tendon, with subjacent fluid collection and intratendinous calcification. Discrete tears appear as hypoechoic regions with adjacent tendon discontinuity.

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

Treatment starts with the application of cold packs to the elbow and oral NSAID therapy. Other clinical approaches include the use of a splint, one or more local corticosteroid injections, application of ultrasound waves and guided rehabilitation program. Surgery is often performed if there is no clinical response after 3 to 6 months of conservative treatment.

For a clinical differential diagnosis of medial elbow pain, consider:

  • occult fracture
  • medial osteoarthrosis
  • medial collateral ligament injury
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Article information

rID: 13230
Section: Gamuts
Tag: refs, cases
Synonyms or Alternate Spellings:
  • Golfers elbow
  • Golfer's elbow

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