RESUMO
Chronic exertional compartment syndrome is a reversible form of compartment syndrome that occurs with exertion and is relieved with rest. Chronic exertional compartment syndrome most commonly occurs in the lower leg and has only rarely been reported in the hand. We report a case of exertional compartment syndrome in the left hand of a 37-year-old male heavy equipment technician with concurrent carpal tunnel syndrome and ulnar neuropathy. Physical examination showed non-exertional numbness and tingling in all five digits while at rest with a reproducible Tinel's test over the carpal tunnel and Guyon's canal. Acute swelling and hand muscle weakness appeared after repetitive pinch and usage of the thenar and intrinsic musculature with acute sensory and motor changes in the ulnar nerve distribution. Elective fasciotomies were performed in the first dorsal interosseous and thenar compartments with concomitant release of the carpal tunnel and ulnar nerve at the wrist. The patient exhibited a full recovery from symptoms with no residual functional deficits. Although rare, patients that perform repetitive hand motions can develop chronic exertional compartment syndrome. To our knowledge, this is the first reported case of chronic exertional compartment syndrome in the hand that occurred with chronic overuse neuropathies and an acute ulnar neuropathy with intrinsic hand muscle weakness at the same time. It is important for providers to conduct a thorough history and physical examination to differentiate multiple hand pathologies that may present simultaneously.