Osteochondrosis of the primary ossification center (Köhler's disease of the patella), however, is infrequently described in the literature. Our case seems to be the first case of isolated painful ...

In the heterotopic ossification model ... whereas considerable chondrocyte formation and evidence of endochondral ossification were observed 4 weeks after implantation into the bone defect site.

In general, hyperactivation of bone morphogenetic protein (BMP) and consequent cascading activation of activin type-1 receptor (ACVR1) is thought to lead to abnormal endochondral osteogenesis, ...

Repeat radiographs showed heterotopic ossification anterolateral to the lateral epicondyle, and the patient was referred to our office 6 months after the surgery (Fig 1). A three-phase bone scan ...