Improved results with the "inverted T" modification of the Bristow procedure.

The results of two modifications of the Bristow procedure in 21 patients were compared an average of 53 months after surgery. Twelve patients had an "inverted T" modification (group T) and nine patients had May's modification (group M). Recurrence rates and functional limitation were determined, as well as range of motion, pain, and apprehension with abduction and external rotation. Preoperative instability was classified according to the method of Protzman. Surgical outcome was graded using the rating scale devised by Rowe in 1978. There were no postoperative dislocations. Overall results were 16 excellent, three good, one fair, and one poor. All 12 patients in group T had an excellent result. In group M, there were four excellent, three good, one fair, and one poor result. Clinical score was 95 in group T and 75 in group M. Pre- and postoperative external rotation at 90 degrees abduction were 91 and 89 degrees in group T, and 99 and 77 degrees in group M.