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SUPERIOR MIGRATION OF THE HUMERAL HEAD

A Radiological Aid in the Diagnosis of Tears of the Rotator Cuff

Dennis S. Weiner 1; and Ian Macnab 2

1 Wellesley Hospital, Toronto; Akron, Ohio, United States Of America; Clinical Research Fellow, Workmen's Compensation Board, Ontario
2 Wellesley Hospital, Toronto; Ontario, Canada; Chief of Division of Orthopaedic Service

1. A radiological study of the acromio-humcral interval in sixty normal shoulders and in fifty-nine shoulders with known tears of the rotator cuff is reported.

2. The normal acromio-humeral interval was found to be seven to fourteen millimetres, a range that is consistent with previous observations.

3. Narrowing of this interval is a frequent concomitant of a tear of the rotator cuff.

4. An interval of five millimetres or less should be considered compatible with a tear of the rotator cuff until proven otherwise.

5. An explanation of the pathomechanics of the observation has been proposed.




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 J Bone Joint Surg BrHome page
U. Kandemir, R. B. Allaire, J. T. Jolly, R. E. Debski, and P. J. McMahon
The relationship between the orientation of the glenoid and tears of the rotator cuff
J Bone Joint Surg Br, August 1, 2006; 88-B(8): 1105 - 1109.
[Abstract] [Full Text] [PDF]


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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General