BACKGROUND To systematically compare the short- to midterm effectiveness of stemless prostheses to that of stemmed prostheses for patients who underwent total shoulder arthroplasty (TSA) and to provide a guideline for clinical decision-making. METHODS PubMed, the Cochrane Library, and Web of Science were searched with the given search terms until July 2019 to identify published articles evaluating the clinical outcomes for stemless prostheses compared with stemmed prostheses for patients who underwent TSA. Data extraction and the quality assessment of the included studies were independently performed by two authors. Stata software 14.0 was used to analyze and synthesize the data. RESULTS Two randomized controlled trials and six case-controlled studies with a total of 347 shoulders were included in this meta-analysis. The results of this meta-analysis showed that there were no significant differences between the stemless and stemmed prostheses in terms of the Constant score, pain score, strength, activities of daily living, postoperative range of motion (ROM), and postoperative maximum active ROM. CONCLUSIONS This is the first meta-analysis reporting the clinical results of stemless TSA in the short- to midterm follow-up period. Both types of shoulder prostheses were similar in achieving satisfactory clinical outcomes.

中文翻译：

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对于接受全肩关节置换术的患者，无柄假体与有柄假体相比的短期至中期疗效：一项荟萃分析。

背景 系统地比较接受全肩关节置换术（TSA）的患者无柄假体与有柄假体的短期至中期疗效，并为临床决策提供指南。方法 使用给定的搜索词对 PubMed、Cochrane 图书馆和 Web of Science 进行搜索，直至 2019 年 7 月，以识别已发表的文章，这些文章评估了接受 TSA 的患者无柄假体与带柄假体的临床结果。纳入研究的数据提取和质量评估由两位作者独立进行。采用Stata软件14.0对数据进行分析和综合。结果 本荟萃分析纳入了两项随机对照试验和六项病例对照研究，共涉及 347 个肩膀。这项荟萃分析的结果表明，无柄假体和有柄假体在恒定评分、疼痛评分、力量、日常生活活动、术后活动范围（ROM）和术后最大活动 ROM 方面没有显着差异。结论 这是第一个报告无茎 TSA 中短期随访临床结果的荟萃分析。两种类型的肩假体在获得满意的临床结果方面相似。