Contribution of Axial Arm Rotation to Humeral Head Translation

Eiji Itoi, Neil E. Motzkin, Bernard F. Morrey, Kai Nan An

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The contribution of axial arm rotation to translation of the humeral head with the arm in the hanging position was examined using nine fresh-frozen cadaveric shoulders. Three standard clinical tests were simulated: anterior and posterior translation and sulcus tests. In both the anterior translation and sulcus tests, anterior and infe rior displacements were significantly restricted in inter nal rotation but not in neutral and external rotation. In the posterior translation test, no significant differences in displacement could be observed in internal, neutral, or external rotation. Since anterior and inferior translations of the humeral head were significantly affected by the rotation of the arm, we recommend that the anterior translation and sulcus tests be performed in various rotations.

Original languageEnglish (US)
Pages (from-to)499-503
Number of pages5
JournalThe American Journal of Sports Medicine
Volume22
Issue number4
DOIs
StatePublished - Jul 1994
Externally publishedYes

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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