Lateralization in Reverse Shoulder Arthroplasty

Indications for Reverse Shoulder Arthroplasty (RSA) have been extended over the last 25 years, and RSA has become the most frequently implanted shoulder arthroplasty worldwide. The initial Grammont design with medialization of the joint center of rotation (JCOR), placement of the JCOR at the bone–im...

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Autores principales:	Stefan Bauer, Jocelyn Corbaz, George S. Athwal, Gilles Walch, William G. Blakeney
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Reverse Shoulder Arthroplasty (RSA) lateralization bipolar lateralization BIO-RSA shoulder prosthesis ROM Medicine R
Acceso en línea:	https://doaj.org/article/3b573a616c8a4c1db7bf3b721fcd23af
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spelling	oai:doaj.org-article:3b573a616c8a4c1db7bf3b721fcd23af2021-11-25T18:02:15ZLateralization in Reverse Shoulder Arthroplasty10.3390/jcm102253802077-0383https://doaj.org/article/3b573a616c8a4c1db7bf3b721fcd23af2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0383/10/22/5380https://doaj.org/toc/2077-0383Indications for Reverse Shoulder Arthroplasty (RSA) have been extended over the last 25 years, and RSA has become the most frequently implanted shoulder arthroplasty worldwide. The initial Grammont design with medialization of the joint center of rotation (JCOR), placement of the JCOR at the bone–implant interface, distalization and semi-constrained configuration has been associated with drawbacks such as reduced rotation and range of motion (ROM), notching, instability and loss of shoulder contour. This review summarizes new strategies to overcome these drawbacks and analyzes the use of glenoid-sided, humeral-sided or global bipolar lateralization, which are applied differently by surgeons and current implant manufacturers. Advantages and drawbacks are discussed. There is evidence that lateralization addresses the initial drawbacks of the Grammont design, improving stability, rates of notching, ROM and shoulder contour, but the ideal extent of lateralization of the glenoid and humerus remains unclear, as well as the maximal acceptable joint reaction force after reduction. Overstuffing and spine of scapula fractures are potential risks. CT-based 3D planning as well as artificial intelligence will help surgeons with planning and execution of appropriate lateralization in RSA. Long-term follow-up of lateralization with new implant designs and implantation strategies is needed.Stefan BauerJocelyn CorbazGeorge S. AthwalGilles WalchWilliam G. BlakeneyMDPI AGarticleReverse Shoulder Arthroplasty (RSA)lateralizationbipolar lateralizationBIO-RSAshoulder prosthesisROMMedicineRENJournal of Clinical Medicine, Vol 10, Iss 5380, p 5380 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Reverse Shoulder Arthroplasty (RSA) lateralization bipolar lateralization BIO-RSA shoulder prosthesis ROM Medicine R
spellingShingle	Reverse Shoulder Arthroplasty (RSA) lateralization bipolar lateralization BIO-RSA shoulder prosthesis ROM Medicine R Stefan Bauer Jocelyn Corbaz George S. Athwal Gilles Walch William G. Blakeney Lateralization in Reverse Shoulder Arthroplasty
description	Indications for Reverse Shoulder Arthroplasty (RSA) have been extended over the last 25 years, and RSA has become the most frequently implanted shoulder arthroplasty worldwide. The initial Grammont design with medialization of the joint center of rotation (JCOR), placement of the JCOR at the bone–implant interface, distalization and semi-constrained configuration has been associated with drawbacks such as reduced rotation and range of motion (ROM), notching, instability and loss of shoulder contour. This review summarizes new strategies to overcome these drawbacks and analyzes the use of glenoid-sided, humeral-sided or global bipolar lateralization, which are applied differently by surgeons and current implant manufacturers. Advantages and drawbacks are discussed. There is evidence that lateralization addresses the initial drawbacks of the Grammont design, improving stability, rates of notching, ROM and shoulder contour, but the ideal extent of lateralization of the glenoid and humerus remains unclear, as well as the maximal acceptable joint reaction force after reduction. Overstuffing and spine of scapula fractures are potential risks. CT-based 3D planning as well as artificial intelligence will help surgeons with planning and execution of appropriate lateralization in RSA. Long-term follow-up of lateralization with new implant designs and implantation strategies is needed.
format	article
author	Stefan Bauer Jocelyn Corbaz George S. Athwal Gilles Walch William G. Blakeney
author_facet	Stefan Bauer Jocelyn Corbaz George S. Athwal Gilles Walch William G. Blakeney
author_sort	Stefan Bauer
title	Lateralization in Reverse Shoulder Arthroplasty
title_short	Lateralization in Reverse Shoulder Arthroplasty
title_full	Lateralization in Reverse Shoulder Arthroplasty
title_fullStr	Lateralization in Reverse Shoulder Arthroplasty
title_full_unstemmed	Lateralization in Reverse Shoulder Arthroplasty
title_sort	lateralization in reverse shoulder arthroplasty
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3b573a616c8a4c1db7bf3b721fcd23af
work_keys_str_mv	AT stefanbauer lateralizationinreverseshoulderarthroplasty AT jocelyncorbaz lateralizationinreverseshoulderarthroplasty AT georgesathwal lateralizationinreverseshoulderarthroplasty AT gilleswalch lateralizationinreverseshoulderarthroplasty AT williamgblakeney lateralizationinreverseshoulderarthroplasty
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Lateralization in Reverse Shoulder Arthroplasty

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