Journal
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
Volume 33, Issue 9, Pages 749-755Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0031-1298001
Keywords
shoulder instability; Bristow operation; Latarjet surgery; dislocation; external and internal rotator muscle strength
Categories
Funding
- Societe Francaise de Medecine Physique et de Readaptation (SOFMER)
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The purposes of this study were to prospectively determine changes in rotator cuff strength before and after surgical shoulder stabilization by Bristow-Latarjet procedure and to better estimate time needed for rotator cuff strength recovery. 20 patients with recurrent anterior posttraumatic shoulder dislocation underwent internal (IR) and external (ER) rotator isokinetic evaluation before and 3, 6 and 21 months after Bristow-Latarjet surgery. In a seated position with 45 degrees of shoulder abduction in the scapular plane, both shoulders were evaluated concentrically with a Con-Trex (R) isokinetic dynamometer at 180 degrees.s(-1), 120 degrees.s(-1) and 60 degrees.s(-1). 3 months post-surgery, IR and ER strength of the operated shoulder were significantly lower than before surgery (- 8 +/- 20 % for IR, -17 +/- 17 % for ER) (P < 0.05). At 6 and 21 months post-surgery, IR and ER strength were comparable to strength before surgery; strength recovery is seen at 6 months post-surgery with long-term maintenance at 21 months. Given the weakness 3 months postsurgery, return to sports (including overhead and contact sports) should be discussed, and 6 months post-surgery may be a better point for an athlete to resume practicing sports. Isokinetic rotator cuff strength evaluation appears to be relevant in helping to determine the need of continuing strength rehabilitation. Pre-surgical evaluation contributes to the relevance of later comparisons.
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