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Table 1 Description of the different glenoid setups that were tested

From: Computer-assisted analysis of functional internal rotation after reverse total shoulder arthroplasty: implications for component choice and orientation

Name

Description

Transformation from Baseline Setup (No. 1)

Setup 1

posteroinferior flush baseplate on glenoid, 96° RSA angle

Baseline Setup

Setup 2

medialization and inferior tilt

3 mm medialization, 90° RSA angle (6° inferior tilt)

Setup 3

lateralisation and inferior tilt

3 mm lateralization, 90° RSA angle (6° inferior tilt) obtained with a wedge-shaped bone graft placed superiorly behind the baseplate

Setup 4

anterosuperior offset

2 mm anterosuperior, 96° RSA angle

Setup 5

BIO-RSA

6 mm lateralization, 90° RSA angle (6° inferior tilt)

Setup 6

Simulation of AltiVate (DJO Global)

6 mm lateralization, 1 mm inferoposterior (baseplate diameter 26 mm instead of 28 mm Zimmer BF), 96° RSA angle