title: Reverse Shoulder Arthroplasty Prosthesis Design Classification System.
abstract: Multiple different reverse total shoulder arthroplasty (rTSA) prosthesis designs are available in the global marketplace for surgeons to perform this growing procedure. Subtle differences in rTSA prosthesis design parameters have been shown to have significant biomechanical impact and clinical consequences. We propose an rTSA prosthesis design classification system to objectively identify and categorize different designs based upon their specific glenoid and humeral prosthetic characteristics for the purpose of standardizing nomenclature that will help the orthopaedic surgeon determine which combination of design configurations best suit a given clinical scenario. The impact of each prosthesis classification type on shoulder muscle length and deltoid wrapping are also described to illustrate how each prosthesis classification type impacts these biomechanical parameters.
authors.forename: Howard D
authors.initials: HD
authors.lastname: Routman
authors.forename: Pierre-Henri
authors.initials: PH
authors.lastname: Flurin
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Wright
authors.forename: Joseph D
authors.initials: JD
authors.lastname: Zuckerman
authors.forename: Matthew A
authors.initials: MA
authors.lastname: Hamilton
authors.forename: Christopher P
authors.initials: CP
authors.lastname: Roche
mesh_terms: D019643:Arthroplasty, Replacement / Q000009:adverse effects / Q000295:instrumentation*; D001696:Biomechanical Phenomena; D017076:Computer-Aided Design / Q000145:classification; D061165:Glenoid Cavity / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D006811:Humerus / Q000503:physiopathology / Q000601:surgery*; D007595:Joint Prosthesis / Q000145:classification*; D018579:Patient Selection; D011183:Postoperative Complications / Q000209:etiology; D011474:Prosthesis Design / Q000145:classification*; D020127:Recovery of Function; D018570:Risk Assessment; D012785:Shoulder Joint / Q000503:physiopathology / Q000601:surgery*; D009626:Terminology as Topic; D016896:Treatment Outcome; D014481:United States