[Chronic compartment syndrome of the flexor muscles in the forearm due to motocross].

A case of a mechanic and motorcyclist is reported who developed unilateral chronic exertional compartment syndrome of the flexor muscles in the forearm. After years of discomfort and medical check-ups, a subcutaneous fasciotomy of the superficial compartments of the flexor muscles in the forearm led to a complete relief of symptoms, which allowed the patient unrestricted activity.