Comparative functional analysis of the Bristow, Magnuson-Stack, and Putti-Platt procedures for recurrent dislocation of the shoulder

W D Regan, S Webster-Bogaert, R J Hawkins, P J Fowler
American Journal of Sports Medicine 1989, 17 (1): 42-8
Literature on anterior shoulder instability deals most often with elimination of recurrence following reconstruction. We analyzed the subjective function, loss of motion and shoulder strength of three operative procedures: Magnuson-Stack, Bristow, and Putti-Platt. A retrospective review of 27 patients, 9 in each surgical group, with no postoperative dislocations or on-going pain was performed. All patients were male, right hand dominant with the right shoulder affected. Average time of followup was 6.75 years (range, 4.2 to 10.3 years). All patients completed a questionnaire and had their range of motion measured by a hand-held goniometer and their shoulder strength tested on the Cybex II Dynomometer. Peak torque as a percent of body weight and side-to-side differences were calculated for six arm positions and compared to nine right hand dominant controls of similar age and recreational activity. Sixty percent returned to throwing sport. One Magnuson-Stack and Bristow patient felt full functional return to preinjury level. Three patients in each of these two groups returned to unmodified throwing sport whereas no Putti-Platt patient attained this level. Deficit of external rotation at shoulder neutral measured 4.7 degrees, Magnuson-Stack; 12.2 degrees, Bristow; and 21.8 degrees, Putti-Platt. At 90 degrees shoulder abduction, similar deficits in external rotation measured 6.4 degrees, 11.6 degrees, and 28.8 degrees respectively. These values were statistically significant employing analysis of variance. We compared the operative groups as a whole to the controls and compared the operative groups to each other.(ABSTRACT TRUNCATED AT 250 WORDS)

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