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Recurrent dislocation of extensor carpi ulnaris tendon

W A Eckhardt, A K Palmer

The Journal of Hand Surgery

|November 1, 1981

Summary

Symptomatic extensor carpi ulnaris (ECU) tendon subluxation, often missed, can result from ECU tendon sheath attenuation. Surgical sheath reconstruction effectively resolves wrist pain and restores function.

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Area of Science:

Orthopedic Surgery
Musculoskeletal Disorders
Wrist Anatomy

Background:

Extensor carpi ulnaris (ECU) tendon subluxation is a rare wrist condition.
Tendon sheath attenuation can lead to ECU subluxation.
Accurate diagnosis is often challenging.

Observation:

Four cases of symptomatic ECU tendon subluxation were identified.
The underlying cause was extensor carpi ulnaris tendon sheath attenuation.
Patients presented with wrist pain and dysfunction.

Findings:

Extensor carpi ulnaris tendon sheath attenuation is a cause of ECU tendon subluxation.
Surgical reconstruction of the tendon sheath successfully relieved symptoms.
Early diagnosis and intervention are crucial for positive outcomes.

Implications:

Increased awareness of this condition is needed among clinicians.
Tendon sheath reconstruction is a viable treatment option.
Further research may elucidate the etiology of sheath attenuation.

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