Correlation of atrophy and fatty infiltration on strength and integrity of rotator cuff repairs: a study in thirteen patients
Publisher DOI
PubMed ID
17931904
Abstract
In 13 patients, the development of supraspinatus muscle atrophy and fatty infiltration after rotator cuff tendon repair was quantified prospectively via magnetic resonance imaging. Intraoperative electrical nerve stimulation at repair showed that the maximal supraspinatus tension (up to 200 N) strongly correlated with the anatomic cross-sectional muscle area and with muscle fatty infiltration (ranging from 12 N/cm(2) in Goutallier stage 3 to 42 N/cm(2) in Goutallier stage 0). Within 1 year after successful tendon repair (n = 8), fatty infiltration did not recover, and atrophy improved partially at best; however, if the repair failed (n = 5), atrophy and fatty infiltration progressed significantly. The ability of the rotator cuff muscles to develop tension not only correlates with their atrophy but also closely correlates with their degree of fatty infiltration. With current repair techniques, atrophy and fatty infiltration appear to be irreversible, despite successful tendon repair. Unexpectedly, not only weak but also very strong muscles are at risk for repair failure.
Date Issued
2007
Publication Type
Article
Language(s)
en
Author(s)
Gerber, Christian | |
Schneeberger, Alberto G | |
Meyer, Dominik C |
Additional Credits
Journal
Journal of shoulder and elbow surgery
Publisher
Elsevier
ISSN
1058-2746
ISBN
17931904
Access(Rights)
metadata.only