» The optimal amount of glenohumeral radial mismatch in anatomic shoulder arthroplasty remains undefined, but the consensus among multiple studies suggests between 4 and 8 mm. » Current implant designs offer mismatch of the radii of curvature between the humeral head and the glenoid ranging from 1 to 38 mm. » Clinically, conforming glenoids demonstrate greater loosening and lucency scores compared with nonconforming glenoid components; however, survivorship advantages have not been proven. » There remains a range of radial mismatch tolerances that improve glenohumeral kinematics and wear patterns, which appear to be greater when the glenoid is loaded centrally and is supported in neutral glenoid version.
Copyright remains with the authors and publisher.
» The optimal amount of glenohumeral radial mismatch in anatomic shoulder arthroplasty remains undefined, but the consensus among multiple studies suggests between 4 and 8 mm. » Current implant designs offer mismatch of the radii of curvature between the humeral head and the glenoid ranging from 1 to 38 mm. » Clinically, conforming glenoids demonstrate greater loosening and lucency scores compared with nonconforming glenoid components; however, survivorship advantages have not been proven. » There remains a range of radial mismatch tolerances that improve glenohumeral kinematics and wear patterns, which appear to be greater when the glenoid is loaded centrally and is supported in neutral glenoid version.
Copyright remains with the authors and publisher.