The figures demonstrate the skin incisions needed to release the shoulder (A) and brachial compartments (B). The cross-sectional image of the upper arm (C) illustrates that the anterior and posterior brachium can be released from a single medial incision.
Modified from: Giladi AM, Chung KC. Fasciotomy for compartment syndrome of the hand and forearm. In: Operative Techniques: Hand and Wrist Surgery, 3rd ed, Chung KC (Ed), Elsevier, Philadelphia 2017.