The cubital tunnel syndrome refers to a compression of the cubital nerve (or ulnar nerve) at the elbow. More rarely, the compression of this nerve can occur at the wrist (Guyon's canal). The cubital nerve passes over the posterior surface of the elbow. It is therefore exposed to compression in the event of impact, prolonged supporting action or repeated flexing movements of the elbow.
Initially, the patient notices the onset of tingling in the little finger. Later, there is a decrease in the sensitivity of this finger.
There is then also a loss of strength of the hand associated with a "melting" of the musculature giving the hand an atrophic (emaciated) appearance.
Paresthesia (tingling) in the 5th and 4th fingers.
An additional examination (electromyography) enables the location and the amount of compression to be determined.
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