Rotational osteotomy of the humerus for posterior instability of the

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shoulder. Surin-V; Blader-S; Markhede-G; Sundholm-K Department of Orthopaedic Surgery, Boras Central Hospital, Sweden. J-Bone-Joint-Surg-Am. 1990 Feb; 72(2): 181-6 We evaluated twelve shoulders (ten patients) that had recurrent, painful posterior instability and were treated by external rotational osteotomy of the humerus. The length of follow-up ranged from two to twelve years. The patients rated the result as excellent or good in ten of the twelve shoulders. Objectively, two shoulders were rated as excellent; eight, as good; and two, as fair. There was recurrent instability in one shoulder that had had multidirectional instability. One pseudarthrosis, which persisted for ten years, was revealed on the follow-up radiographs.