Ghafil D, Putz P
Hôpital Universitaire Brugmann, Bruxelles, Belgique.
Acta Orthop Belg. 1998 Sep;64(3):339-42.
The incidence of posterior shoulder dislocation ranges between 2 and 5% of glenohumeral dislocations. The mechanisms most frequently involved are trauma, grand-mal seizures and electrocutions. This lesion remains a diagnostic trap, due to paucity or even lack of clinical signs, and to the apparent normality of the anteroposterior radiograph of the shoulder. Nevertheless, careful clinical examination and an axillary radiograph often allow for a correct diagnosis. We report a case of traumatic posterior dislocation, unnoticed for 7 weeks. A satisfactory functional adaption of the dislocated shoulder to everyday life and the general condition of the patient lead us to select the notreatment option.
肩关节后脱位的发生率占盂肱关节脱位的2%至5%。最常见的病因是创伤、癫痫大发作和触电。由于临床症状稀少甚至缺乏，且肩部前后位X线片看似正常，这种损伤仍然是一个诊断陷阱。然而，仔细的临床检查和腋位X线片通常能做出正确诊断。我们报告一例创伤性后脱位病例，7周未被发现。脱位肩部对日常生活的功能适应良好以及患者的一般状况，使我们选择了不治疗方案。
