A Comprehensive Testing Program for Shoulder Implant Assessment

肩部植入物评估的综合测试计划

• 批准号: RGPIN-2015-03965
• 负责人: Johnson, James
• 金额: $ 4.01万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638643
• 关键词: Comprehensive; Testing; Program; Shoulder; Implant

Failure of shoulder implants is a growing concern for both the anatomic and reverse designs – this is where the “ball and socket” is reversed to increase muscle moment arms and reduce joint loads. While there are a number of potential failure modes, loss of the structural integrity of the polyethylene liner component due to creep and wear is a most pressing problem. This is likely due to the excessive loads that occur on the articular surfaces.

肩部植入物的失败是解剖学和反向设计中越来越令人担忧的问题--这是为了增加肌肉力矩臂和减少关节负荷而颠倒的“球和窝”。虽然有许多潜在的失效模式，但由于蠕变和磨损而导致的聚乙烯衬里组件的结构完整性损失是最紧迫的问题。这很可能是由于关节表面的负荷过大造成的。