PATHOLOGY OF FAILURE OF THE ROTATOR CUFF TENDON
Section snippets
INTRINSIC CAUSES
Processes starting inside the tendon are called primary changes as opposed to cuff changes induced by lesions originating in tissues surrounding the cuff and affecting it secondarily. Primary changes may be traumatic in nature; they can also be reactive, but, most often, they are of degenerative origin.
EXTRINSIC CAUSES
Structures contributing to cuff failure may be bones or soft tissues.
ACKNOWLEDGMENTS
The authors thank Clare Booth and Brigitte Eiselt for their technical assistance. Biomechanical testing was conducted by Alan Yeadon, MEng.
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Address reprint requests to Hans K. Uhthoff, MD, Division of Orthopaedic Surgery, Ottawa General Hospital, 501 Smyth Road, Ottawa, Ontario, Canada, K1H 8L6
This work was supported by the Medical Research Council of Canada.