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Extensor compartments of the wrist. The ECRL and ECRB are contained within the second dorsal compartment. MC = metacarpal, APL = abductor pollicis longus, EPB = extensor pollicis brevis, EPL = extensor pollicis longus , EIP = extensor indicis proprius, EDC = extensor digitorum communis, EDM = extensor digiti minimi. (Reprinted with permission from Trumble T, Principles of hand surgery and therapy. Philadelphia: Saunders, 2000)
