New Test Method for Evaluation of Impingement-Free Range of Motion of Shoulder Replacements on Reconstructed CT models
1. Scope
This test method covers the procedure to simulate range of motion associated with a shoulder arthroplasty prosthesis (reverse or anatomic) when virtually implanted in three-dimensional (3-D) computed tomography (CT) reconstructed digital bone models from 4 unique glenohumeral joint anatomies.
This test method can be used to evaluate locations of impingement between the humeral component, glenoid component, and glenohumeral anatomic structures in the 3D CT reconstructed bone models.
Keywords
glenoid; scapula; humerus; reverse shoulder; anatomic shoulder; acromion
Rationale
Shoulder Arthroplasty implants have different locations of impingement and some designs are more prone to impingement than others. There is no current method to evaluate impingement and there is no established anatomical model to perform this range of motion analysis. Additionally, shoulder arthroplasty implants have different surgical techniques and/or recommendations for positioning the prostheses on the glenoid and humeral bone. There is no current method to evaluate and compare these implantation recommendations. Manufacturers of shoulder arthroplasty devices may use this test method to compare the range of motion and specific impingement points between devices.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 12-02-2025
Technical Contact: Sarah Fay
Item: 000
Ballot:
Status: