—Kropp692 reported a communication between pisotriquetral and radiocarpal joints in 76 per cent of fifty-six joints examined in 28 subjects. Usually this joint is described as completely separated from the cavity of the radiocarpal joint. In only two anatomic atlases was he able to find evidence of the communication between pisotriquetral and radiocarpal joints.Sunderland693 made a study on the action of extensor digitorum communis, interosseous and lumbrical muscles. The purpose of this paper was to record observations on the actions of these muscles in cases of lesions of peripheral nerves in which conditions were favorable for examination of isolated and combined muscle action. The flexor action of the interossei at the metacarpophalangeal joint and the extensor action of the lumbrical muscles and the extensor digitorum at the interphalangeal joints are contentious points and are given special consideration. The lateral movements of the digits are not
GRAHAM WC. PROGRESS IN ORTHOPEDIC SURGERY FOR 1945 A Review Prepared by an Editorial Board of the American Academy of Orthopaedic Surgeons: XIX. CONDITIONS INVOLVING THE ELBOW, THE FOREARM, THE WRIST AND THE HAND. Arch Surg. 1947;55(1):64–76. doi:10.1001/archsurg.1947.01230080067006
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