Effect of lateral offset center of rotation in reverse total shoulder arthroplasty: a biomechanical study

2012 ◽  
Vol 21 (9) ◽  
pp. 1128-1135 ◽  
Author(s):  
Heath B. Henninger ◽  
Alexej Barg ◽  
Andrew E. Anderson ◽  
Kent N. Bachus ◽  
Robert T. Burks ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Biomechanical Study ◽  
Reverse Total Shoulder Arthroplasty ◽  
Center Of Rotation ◽  
Lateral Offset ◽  
Reverse Total Shoulder

Lateralized versus nonlateralized reverse total shoulder arthroplasty

2020 ◽  
pp. 175857322093741
Author(s):  
Yehia H Bedeir ◽  
Brian M Grawe ◽  
Magdy M Eldakhakhny ◽  
Ahmed H Waly
Keyword(s):  
Range Of Motion ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Shear Forces ◽  
Scapular Notching ◽  
Center Of Rotation ◽  
History Of ◽  
Lateral Offset ◽  
Reverse Total Shoulder

Throughout the history of reverse total shoulder arthroplasty, the extent of lateral offset has changed considerably from “too lateral” to “too medial” and has been lately swinging back towards a point somewhere in between. Nonlateralized designs minimize shear forces on the glenoid and decrease force required by the deltoid. Glenoid lateralization decreases impingement and scapular notching and improves range of motion. Humeral lateralization achieves a more anatomic position of the tuberosities while maintaining a nonlateralized center of rotation. Several factors play a role in choosing the extent of lateral offset and method of lateralization.

Determining Center of Rotation and Scapular Notching in Reverse Total Shoulder Arthroplasty

2015 ◽  
Vol 16 (2) ◽  
pp. 52-58
Author(s):  
William Bragg ◽  
Emily Niu ◽  
Alex H. S. Harris ◽  
Michael Nguyen ◽  
Emilie Cheung
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Scapular Notching ◽  
Center Of Rotation ◽  
Reverse Total Shoulder

Humeral component retroversion in reverse total shoulder arthroplasty: a biomechanical study

2012 ◽  
Vol 21 (9) ◽  
pp. 1121-1127 ◽  
Author(s):  
Lawrence V. Gulotta ◽  
Dan Choi ◽  
Patrick Marinello ◽  
Zakary Knutson ◽  
Joseph Lipman ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Biomechanical Study ◽  
Reverse Total Shoulder Arthroplasty ◽  
Humeral Component ◽  
Reverse Total Shoulder

Tuberosity Repair in Reverse Total Shoulder Arthroplasty for Fracture Using a Stem-based Double-row Repair: A Cadaveric Biomechanical Study

2020 ◽  
Vol 28 (23) ◽  
pp. e1059-e1065
Author(s):  
Brandon J. Erickson ◽  
Yousef Shishani ◽  
Meghan E. Bishop ◽  
Anthony A. Romeo ◽  
Evan Lederman ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Biomechanical Study ◽  
Reverse Total Shoulder Arthroplasty ◽  
Double Row ◽  
Reverse Total Shoulder ◽  
Double Row Repair

Reverse total shoulder arthroplasty component center of rotation affects muscle function

2014 ◽  
Vol 23 (8) ◽  
pp. 1128-1135 ◽  
Author(s):  
Heinz R. Hoenecke ◽  
Cesar Flores-Hernandez ◽  
Darryl D. D'Lima
Keyword(s):  
Shoulder Arthroplasty ◽  
Muscle Function ◽  
Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Center Of Rotation ◽  
Reverse Total Shoulder

scholarly journals Medialized versus Lateralized Center of Rotation in Reverse Total Shoulder Arthroplasty: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 10 (24) ◽  
pp. 5868
Author(s):  
Alessandra Berton ◽  
Lawrence Vicent Gulotta ◽  
Umile Giuseppe Longo ◽  
Sergio De Salvatore ◽  
Ilaria Piergentili ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Meta Analysis ◽  
Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder Arthroplasty ◽  
Cochrane Central Register ◽  
Complication Rates ◽  
Center Of Rotation ◽  
Humeral Component ◽  
Reverse Total Shoulder

One of the original biomechanical principles of reverse total shoulder arthroplasty (RTSA) is medialization of the center of rotation (COR) relative to the native level of the glenoid. Several authors have proposed the lateralized center of rotation, which is characterized by a lateralized (L) glenoid and medialized (M) humeral component. The aim of this review is to compare the clinical and functional outcomes of COR in medialized (M-RTSA) and lateralized (L-RTSA) RTSA in patients with uniform indications and treatment through a meta-analysis. A PRISMA-guided literature search of PubMed, Medline, Embase, Scopus, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews and Cochrane Clinical Answers was conducted from April to May 2021. Twenty-four studies were included in the qualitative synthesis, and 19 studies were included in the meta-analysis. Treatment with RTSA resulted in positive post-operative outcomes and low complication rates for both groups. Statistically relevant differences between L-RTSA group and M-RTSA group were found in post-operative improvement in external rotation with arm-at-side (20.4° and 8.3°, respectively), scapular notching rates (6.6% and 47.7%) and post-operative infection rates (1% and 7.7%). Both lateralized and medialized designs were shown to improve the postoperative outcomes. Nevertheless, a lateralized COR resulted in greater post-operative external rotation.

Effect of deltoid tension and humeral version in reverse total shoulder arthroplasty: a biomechanical study

2012 ◽  
Vol 21 (4) ◽  
pp. 483-490 ◽  
Author(s):  
Heath B. Henninger ◽  
Alexej Barg ◽  
Andrew E. Anderson ◽  
Kent N. Bachus ◽  
Robert Z. Tashjian ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Biomechanical Study ◽  
Reverse Total Shoulder Arthroplasty ◽  
Reverse Total Shoulder
Sign in / Sign up

Export Citation Format

Share Document