Chronic exertional compartment syndrome in the forearm: Ultrasound-guided surgical technique

Introduction

Chronic exertional compartment syndrome of the forearm is most commonly associated with exercise. It presents as cramping after a few minutes of activity, requiring cessation of exercise. We describe an ultrasound-guided surgical technique for the treatment of forearm chronic exertional compartment syndrome.

Anatomy and Pathophysiology

The forearm consists of three compartments: the anterior, lateral, and dorsal compartments. These compartments are formed by the muscles of the forearm and are surrounded by a fibroelastic membrane composed of connective tissue. Repetitive activity in the forearm leads to an increase in muscle volume within a non-extensible compartment. This increase in pressure causes pain and cramping, forcing the individual to stop the activity. Diagnosis is based on measurement of intramuscular compartment pressures.

Surgical Technique

Surgical treatment involves performing a fasciotomy. This can be done through an incision along the length of the forearm or through a minimally invasive approach using endoscopic or ultrasound guidance. The ultrasound-guided technique uses two small entry points and a specialized knife. No post-operative immobilization is required, allowing patients to quickly resume their activities.

Discussion

Chronic exertional compartment syndrome of the forearm is a condition that is particularly common among motorcyclists. Diagnosis is based on a combination of a suggestive clinical presentation and pathological intramuscular pressure. Treatment may be conservative or surgical (fasciotomy). Fasciotomy can be performed using an open approach or a minimally invasive ultrasound-guided technique. Published studies on ultrasound-guided treatment report excellent results with a rapid return to sports activities after surgery.