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Normal amplitudes of radioulnar pronation and supination in several genera of anthropoid primates

1979; Wiley; Volume: 51; Issue: 1 Linguagem: Inglês

10.1002/ajpa.1330510105

1096-8644

Brian L. O’Connor, Kyle E. Rarey,

Elbow and Forearm Trauma Treatment

Abstract The amounts of radioulnar pronation and supination occurring in five genera of Old World Monkeys ( Macaca , Papio , Cercopithecus , Theropithecus , and Erythrocebus ), three genera of hominoid primates ( Homo , Pongo , and Hylobates ), and one genus of New World monkey ( Cebus ) were compared in this investigation. The results indicate that radioulnar motion is significantly less in Macaca than in other cercopithecoid monkeys, that it is significantly less in all cercopithecoid monkeys than in Cebus , and that it is significantly less in Cebus than in the hominoid primates. The data support the contention that hominoid primates and (at least some) cercopithecoid monkeys possess fundamentally different ranges of radioulnar pronation and supination, and the contention that the morpological differences between the inferior radioulnar joints of hominoid and cercopithecoid primates reflect different ranges of motion which, in turn, are associated with either a quadrupedal or non‐quadrupedal lifestyle.