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The biomechanics of reverse shoulder arthroplasty

2020; Elsevier BV; Volume: 8; Issue: 1 Linguagem: Inglês

10.1016/j.jajs.2020.12.009

2542-6001

Sanjeeve Sabharwal, Steve Bale,

Nerve Injury and Rehabilitation

Reverse total shoulder arthroplasty has become an increasingly popular surgical procedure over the last 25 years. Since its initial conception as an implant that would address the limitations of anatomic shoulder arthroplasty in a rotator cuff deficient shoulder, the science behind its design has grown and as a result the implant has evolved rapidly. Numerous reverse shoulder arthroplasty prostheses are currently available with subtle modifications in implants potentially impacting on clinical outcomes. It is important that shoulder surgeons understand the biomechanical principles that drive these design nuances so that implant selection is better informed, and patient outcomes can be optimised. This review article examines the biomechanical principles on which the first prosthesis was based, and further evaluates the development of newer designs and the evidence that supports their application in modern clinical practice.