A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design

The purpose of this study was to compare the short-term clinical and radiographic outcomes of a lateralized glenoid construct with either a central screw or post. <b>Methods:</b> A multicenter retrospective study was conducted of reverse shoulder arthroplasties (RSAs) with minimum 2-year...

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Main Authors: Michael J. Bercik, Brian C. Werner, Benjamin W. Sears, Reuben Gobezie, Evan Lederman, Patrick J. Denard
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/11/13/3763
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author Michael J. Bercik
Brian C. Werner
Benjamin W. Sears
Reuben Gobezie
Evan Lederman
Patrick J. Denard
author_facet Michael J. Bercik
Brian C. Werner
Benjamin W. Sears
Reuben Gobezie
Evan Lederman
Patrick J. Denard
author_sort Michael J. Bercik
collection DOAJ
description The purpose of this study was to compare the short-term clinical and radiographic outcomes of a lateralized glenoid construct with either a central screw or post. <b>Methods:</b> A multicenter retrospective study was conducted of reverse shoulder arthroplasties (RSAs) with minimum 2-year clinical followup. All RSAs implanted had a 135° neck shaft angle (NSA) and a modular circular baseplate. The patients were divided into two cohorts based on the type of central fixation for their glenoid baseplates (central post (CP) vs. central screw (CS)). The clinical outcomes, rates of revisions, and available radiographs were evaluated. <b>Results:</b> In total, 212 patients met the study criteria. Postoperatively, both groups improved over their preoperative baseline. There were no significant differences between the cohorts in any PROs at 2 years postoperatively. No findings of gross loosening were identified in either cohort. Implant survival was 98.6% at 2 years. <b>Conclusions:</b> When using a lateralized glenoid implant with a 135° NSA inlay humeral component, both central post and central screw baseplate fixation provide good clinical outcomes, survivorship, and improvements in ROM at 2 years. There is no difference in loosening or revision rates between the types of baseplate fixation at a minimum of 2 years postoperatively.
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spelling doaj.art-9fd7cfdccd3947838274ddd78bf9c5ae2023-12-03T14:08:06ZengMDPI AGJournal of Clinical Medicine2077-03832022-06-011113376310.3390/jcm11133763A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid DesignMichael J. Bercik0Brian C. Werner1Benjamin W. Sears2Reuben Gobezie3Evan Lederman4Patrick J. Denard5Lancaster Orthopedic Group, Lancaster, PA 17601, USADepartment of Orthopaedic Surgery, University of Virginia, Charlottesville, VA 22903, USAWestern Orthopaedics, Denver, CO 80218, USAThe Cleveland Shoulder Institute, Beachwood, OH 44194, USABanner Health, Phoenix, AZ 85012, USAOregon Shoulder Institute, Medford, OR 97504, USAThe purpose of this study was to compare the short-term clinical and radiographic outcomes of a lateralized glenoid construct with either a central screw or post. <b>Methods:</b> A multicenter retrospective study was conducted of reverse shoulder arthroplasties (RSAs) with minimum 2-year clinical followup. All RSAs implanted had a 135° neck shaft angle (NSA) and a modular circular baseplate. The patients were divided into two cohorts based on the type of central fixation for their glenoid baseplates (central post (CP) vs. central screw (CS)). The clinical outcomes, rates of revisions, and available radiographs were evaluated. <b>Results:</b> In total, 212 patients met the study criteria. Postoperatively, both groups improved over their preoperative baseline. There were no significant differences between the cohorts in any PROs at 2 years postoperatively. No findings of gross loosening were identified in either cohort. Implant survival was 98.6% at 2 years. <b>Conclusions:</b> When using a lateralized glenoid implant with a 135° NSA inlay humeral component, both central post and central screw baseplate fixation provide good clinical outcomes, survivorship, and improvements in ROM at 2 years. There is no difference in loosening or revision rates between the types of baseplate fixation at a minimum of 2 years postoperatively.https://www.mdpi.com/2077-0383/11/13/3763reverse shoulder arthroplastybaseplate fixationlongevityclinical outcomes
spellingShingle Michael J. Bercik
Brian C. Werner
Benjamin W. Sears
Reuben Gobezie
Evan Lederman
Patrick J. Denard
A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design
Journal of Clinical Medicine
reverse shoulder arthroplasty
baseplate fixation
longevity
clinical outcomes
title A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design
title_full A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design
title_fullStr A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design
title_full_unstemmed A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design
title_short A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design
title_sort comparison of central screw versus post for glenoid baseplate fixation in reverse shoulder arthroplasty using a lateralized glenoid design
topic reverse shoulder arthroplasty
baseplate fixation
longevity
clinical outcomes
url https://www.mdpi.com/2077-0383/11/13/3763
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