Cubital Tunnel Syndrome
What is it: Cubital tunnel syndrome is a neuropathy of the ulnar nerve as it passes through the cubital tunnel (medial side of the elbow). It can be caused by compression of the nerve, trauma or subluxation of the nerve.
How does it present: Patients often present with medial elbow pain. They may also experience pain or parasthesis down the ulnar side of the forearm. In some cases patients may experience numbness in the ulnar distribution of the forearm and fourth and fifth fingers.
Common exam findings: On exam, you may appreciate worsening of symptoms with tapping along the cubital tunnel (view the Tinel's Sign YouTube video). In other cases full forced flexion of the elbow may recreate symptoms. They may experience some weakness in the intrinsic muscle of the hand and in long term cases intrinsic muscle atrophy may be appreciated.
Tests and treatment: An electromyography (EMG) may be considered if further studies are indicated. Initial treatment is generally conservative with wearing an elbow brace to prevent full flexion, modification of aggravating activities, resting, and icing. Physical therapy may be helpful. In recalcitrant cases or in cases affection strength and function, a surgical approach may be indicated.