Three-Dimensional Finite Element Analysis of a Notched Insert Design for Reverse Total Shoulder Arthroplasty to Prevent Scapular Notching.

Autor: Ziroglu N; Department of Orthopedics and Traumatology, Acibadem University, Acibadem Atakent Hospital, Halkalı Merkez, Turgut Özal Bulvari No:16, 34303 Küçükçekmece/Istanbul, Turkey., Balin H; Mechanical Engineer, Mechanical Engineering, Istanbul Technique University, Istanbul, Turkey., Ucan V; Department of Orthopedics and Traumatology, Bezmialem Vakif University, Istanbul, Türkiye., Bozdag E; Mechanical Engineer, Mechanical Engineering, Istanbul Technique University, Istanbul, Turkey., Kapicioglu M; Department of Orthopedics and Traumatology, Bezmialem Vakif University, Istanbul, Türkiye., Bilsel K; Department of Orthopedics and Traumatology, Bezmialem Vakif University, Istanbul, Türkiye.
Jazyk: angličtina
Zdroj: Indian journal of orthopaedics [Indian J Orthop] 2023 Aug 21; Vol. 57 (11), pp. 1874-1880. Date of Electronic Publication: 2023 Aug 21 (Print Publication: 2023).
DOI: 10.1007/s43465-023-00975-7
Abstrakt: Purpose: Reverse total shoulder arthroplasty (RSA) is an effective treatment option for rotator cuff arthropathy. Scapular notching following RSA remains a major complication and has a high incidence. This finite element analysis (FEA) study provides a future reference for the optimal design of the insert component of RSA. This study aims to clarify the effect of a new design RSA with a notched insert on the range of adduction, scapular notching, and stress variation of its insert component using three-dimensional (3D) FEA.
Methods: 3D nominal Grammont-type monobloc RSA implant components are modeled on the sawbones glenohumeral joint. The polyethylene insert is redesigned with notching of the inferior part. The comparison of standard and notched designs was performed by FEA for stress pressure of scapular notching and the degree of adduction. 3D mesh models are created for stress analysis to compare the results between standard and notched inserts for the adduction.
Results: The redesigned notched inserts had an additional ~ 11.2° on adduction and prevented scapular notching. The stress analysis results for the notched insert design were lower than the standard ones (4.7 vs 22.4 Kpa).
Conclusions: Notched insert design of Grammont-type RSA could provide additional adduction with lower stress on the glenoid, leading to less scapular notching. Further experimental and clinical studies on different RSA types are needed to verify this effect.
Study Design: Basic Science Study; Biomechanics and Computer Modeling.
Competing Interests: Confilict of InterestThe authors report no potential conflicts of interest or sources of funding. The authors, their immediate families, and any research foundation with which they are affiliated did not receive any financial payments or other benefits from any commercial entity related to the subject of this article.
(© Indian Orthopaedics Association 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
Databáze: MEDLINE
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