Influence of preoperative humeral head morphology on clinical and radiographic outcomes following total shoulder arthroplasty

Aspherical head morphology was associated with a higher incidence of male gender and B2 glenoid morphology; however, humeral head deformity alone was not shown to lead to diminished outcomes or worse COR restoration following TSA. Patients with aspherical preoperative humeral head morphology were not found to have worse clinical or radiographic outcomes compared to patients with spherical heads; however, patients with aspherical humeral heads did make significant improvements in rotational strength at 2-year follow-up.