The cubital tunnel syndrome may occur if one or more conditions are present, resulting in compression of the ulnar nerve.


Cubital tunnel: delimited by the epicondylo-olecranon ligament (cubital tunnel retinaculum)


Conditions that can result in the cubital tunnel syndrome:

(1) sport or exercise overuse injury

(2) congenital laxity of fibrous connective tissue, with subluxation of the nerve

(3) fracture of the distal humerus

(4) bone spur from the olecranon or epicondyle

(5) muscle anomaly

(6) soft tissue tumor (lipoma, etc)

(7) bone tumor (osteochondroma, etc)

(8) ganglion or other cyst

(9) synovitis

(10) infection

(11) hemorrhage

(12) external compression, including perioperative compression

(13) repetitive/vibration trauma

(14) compression by a ligament of the flexor carpi ulnaris muscle

(15) tumor of the ulnar nerve


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