SummaryEarly evidence from two small retrospective cohort studies suggests that reverse shoulder arthroplasty appears similar to hemiarthroplasty for the treatment of proximal humeral fractures in an elderly population.One study found no significant differences for either functional outcomes or range of motion at follow-up.The other study found that Constant scores and range of motion may be better for reverse shoulder arthroplasty.However,only retrospective cohort studies were available,so no definitive conclusions can be drawn from these two small 2项小样本回顾性队列研究的结论认为,反置式人工全肩关节置换术(RSA)与人工肱骨头置换术(HA)在治疗老年性肱骨近端骨折方面疗效相当.其中1项研究发现,随访期间两种方法在功能恢复和活动范围改善方面无明显统计学差异.另1项研究则认为经过RSA治疗的患者,Constant肩部评分结果和肩部活动范围的改善要更好.但是,目前的研究结果来自于回顾性队列研究,因此并不能从中得出比较确切的结论。