[Shoulder dislocation in the newborn. Report of 12 cases and review of the literature].

Shoulder dislocation in the newborn is a rare entity. Therefore, a therapeutic regimen does not exist. This retrospective clinical study (1967-2003) includes 9 newborns with 12 dislocations of the shoulder. The data focus in particular on the therapeutic strategy and its success. The position of the joint and its functionality were monitored with a questionnaire. Publications from 1904 to 2003 were reviewed and served for comparison. Results of calculations showed that 0.018-0.07% of newborns suffer from shoulder dislocations. The diagnosis was made on average at the age of 22 days. Our data include four cases each of congenital and paralytic and two cases each of spastic and traumatic shoulder dislocations. All of them were initially treated conservatively, but because of inadequate results one patient finally had to be operated. In the follow-up of 19.4 years, none of them developed a redislocation and all shoulder functions were suitable for daily life. We propose that patients primarily be treated conservatively; however, if therapy fails, surgery has to be performed.