Heterotopic OssificationHeterotopic ossification has been reported in 24% of patients with total shoulder arthroplasties. This may be present in up to 50% of cases within 1-2 months of surgery and is not progressive. No identifiable risk factors are reported. Range of motion, pain and functional outcomes are similar to patients without hetertopic ossification.17
Heterotopic ossification medial to the proximal humeral shaft.