Failed anterior reconstruction for shoulder instability

We report a retrospective study of 46 patients with continuing difficulties after anterior reconstruction of a shoulder for instability. In 31 patients instability was still present; in 12 of these, posterior or multidirectional instability had not been recognised and a further 11 had an uncorrected anatomical defect. In 20 patients with significant pain there was often more than one cause: impingement syndrome was seen in nine, osteoarthritis in seven, implant irritation in four and instability alone in two. A disabling medial rotation contracture was seen in 10 patients, four of whom had painful osteoarthritis. We conclude that recurrence of symptoms may imply that the direction of the instability was not recognised, that an anterior repair should not be too tight, and that pain after successful stabilisation is often due to impingement.

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				N. L. Millar and G. A. C. Murrell The effectiveness of arthroscopic stabilisation for failed open shoulder instability surgery J Bone Joint Surg Br, June 1, 2008; 90-B(6): 745 - 750. [Abstract] [Full Text] [PDF]