• Daniel A Fung, Steven Frey, and Robert B Grossman.
• Office of Medical Education, SW229, 300 2nd Ave, Long Branch, NJ 07740, USA.
• Orthopedics. 2008 May 1; 31 (5): 494.

AbstractWe present a case of upper arm compartment syndrome following a biceps tendon rupture in a 77-year old man on warfarin sodium. Compartment syndrome is common in the forearm and leg, but rare in the upper arm with only a handful of cases reported in the literature. Our patient's anticoagulated state predisposed him to the development of compartment syndrome. To the best of our knowledge there has been only one other case reported in the literature of upper arm compartment syndrome following biceps tendon rupture in a patient on warfarin sodium. Compartment syndrome of the upper arm is a rare occurrence. Previous cases have occurred due to malposition of blood pressure cuffs, injections, venepuncture, trauma, tourniquets, shoulder dislocation, surgical complication, subatmospheric pressure induced, biceps rupture, and triceps rupture. The fascia of the upper arm is relatively thinner and more distensible than the fascia of the leg or forearm. This creates more room for the compartment to swell before pressures builds up to a significant level. Thus, a significantly increased amount of pressure needs to build up before compartment syndrome will occur in the upper arm. Once the diagnosis was formed, the patient was treated with emergent fasciotomy and evacuation of hematoma. After a prolonged hospital stay, the patient was released with minor neurological deficits. At final follow-up, the patient was neurovascularly intact with no complaints of numbness or tingling, and he had regained full motor function throughout.

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