Life Sciences & Biomedicine Orthopedics Science & Technology Sport Sciences Surgery
Although rotator cuff repair is often successful at relieving pain, the repaired insertion site frequently fails. Mechanical properties of the repair improved when the shoulder was immobilized in an animal model, but joint stiffness and range of motion were not evaluated. The objective of this study was to measure rotational mechanics before and after shoulders were immobilized after cuff injury and repair, not immobilized after cuff injury and repair, and immobilized without injury and repair. Humeral rotation was significantly less 4 and 8 weeks after injury and repair but did not decrease significantly when the injured and repaired shoulder was immobilized. Rotational stiffness increased significantly 4 and 8 weeks after injury and repair and was significantly greater at 4, but not 8, weeks when the injured and repaired shoulders were immobilized. This study demonstrated that the increase in joint stiffness caused by immobilizing an injured and repaired shoulder was transient and, therefore, does not outweigh the long-term benefits of immobilization on improved tendon to bone healing.
After rotator cuff repair, stiffness-but not the loss in range of motion-increased transiently for immobilized shoulders in a rat model
Creators
Joseph J. Sarver - University of Pennsylvania
Cathryn D. Peltz - University of Pennsylvania
LeAnn Dourte - University of Pennsylvania
Sucheer Reddy - Univ Penn, Orthopaed Res Lab, Dept Orthopaed Surg, Philadelphia, PA 19104 USA
Gerald R. Williams - University of Pennsylvania
Louis J. Soslowsky - University of Pennsylvania
Publication Details
Journal of shoulder and elbow surgery, v 17(1), pp 108S-113S
Publisher
Elsevier
Number of pages
6
Grant note
R01AR051000 / NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Arthritis & Musculoskeletal & Skin Diseases (NIAMS)
P30 AR050950; P30 AR050950-01A1; P30 AR050950-02; R01 AR051000-01A2 / NIAMS NIH HHS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Arthritis & Musculoskeletal & Skin Diseases (NIAMS)
Resource Type
Journal article
Language
English
Academic Unit
School of Biomedical Engineering, Science, and Health Systems; Drexel University
Web of Science ID
WOS:000252883100019
Scopus ID
2-s2.0-38049165928
Other Identifier
991019323775904721
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