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Volume 5
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10.3390/prosthesis5040075
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Review

Radiographic Analysis of Grammont-Style and Lateralized Reverse Shoulder Arthroplasty in Gleno-Humeral Osteoarthritis

by
Giovanni Merolla
1,2,*,
Giuseppe Sircana
1,
Antonio Padolino
1,
Francesco Fauci
1,
Carlo Alberto Augusti
1,
Marco Saporito
1 and
Paolo Paladini
1
1
Shoulder and Elbow Unit, Cervesi Hospital, AUSL Romagna, 47841 Cattolica, Italy
2
Biomechanics Laboratory, Cervesi Hospital, AUSL Romagna, 47841 Cattolica, Italy
*
Author to whom correspondence should be addressed.
Prosthesis 2023, 5(4), 1075-1092; https://doi.org/10.3390/prosthesis5040075
Submission received: 31 August 2023 / Revised: 30 September 2023 / Accepted: 4 October 2023 / Published: 19 October 2023
(This article belongs to the Special Issue State of Art in Hip and Knee Replacement)
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Abstract

Reverse shoulder arthroplasty (RSA) has transformed the management of shoulder pathologies, including cuff tear arthropathy and osteoarthritis. The innovative design principles of RSA, such as the medialization and inferiorization of the joint center of rotation, distalization of the humerus, and a semi-constrained construct, enable effective deltoid compensation for rotator cuff deficiency. The Grammont-style RSA demonstrated excellent clinical outcomes. However, complications like instability and scapular notching prompted the exploration of lateralized designs. The radiographic evaluation of RSA is paramount for understanding the biomechanics of the implant and to foresee possible complications. Radiographic assessments encompass glenoid and humeral component positions, identifying features like scapular notching, radiolucent lines, heterotopic ossifications, bone adaptations, and humeral lengthening. Lateralized designs alter muscle moment arms and improve deltoid efficiency, influencing abduction and adduction mechanics. Despite the reduction in scapular notching, lateralized RSA introduces new challenges, such as increased risk of scapular spine and acromial fractures. Understanding the radiographic features and biomechanics of lateralized RSA is crucial for optimizing patient outcomes and mitigating potential complications.
Keywords: reverse shoulder arthroplasty; RSA lateralization; postoperative radiology reverse shoulder arthroplasty; RSA lateralization; postoperative radiology

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MDPI and ACS Style

Merolla, G.; Sircana, G.; Padolino, A.; Fauci, F.; Augusti, C.A.; Saporito, M.; Paladini, P. Radiographic Analysis of Grammont-Style and Lateralized Reverse Shoulder Arthroplasty in Gleno-Humeral Osteoarthritis. Prosthesis 2023, 5, 1075-1092. https://doi.org/10.3390/prosthesis5040075

AMA Style

Merolla G, Sircana G, Padolino A, Fauci F, Augusti CA, Saporito M, Paladini P. Radiographic Analysis of Grammont-Style and Lateralized Reverse Shoulder Arthroplasty in Gleno-Humeral Osteoarthritis. Prosthesis. 2023; 5(4):1075-1092. https://doi.org/10.3390/prosthesis5040075

Chicago/Turabian Style

Merolla, Giovanni, Giuseppe Sircana, Antonio Padolino, Francesco Fauci, Carlo Alberto Augusti, Marco Saporito, and Paolo Paladini. 2023. "Radiographic Analysis of Grammont-Style and Lateralized Reverse Shoulder Arthroplasty in Gleno-Humeral Osteoarthritis" Prosthesis 5, no. 4: 1075-1092. https://doi.org/10.3390/prosthesis5040075

APA Style

Merolla, G., Sircana, G., Padolino, A., Fauci, F., Augusti, C. A., Saporito, M., & Paladini, P. (2023). Radiographic Analysis of Grammont-Style and Lateralized Reverse Shoulder Arthroplasty in Gleno-Humeral Osteoarthritis. Prosthesis, 5(4), 1075-1092. https://doi.org/10.3390/prosthesis5040075

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