such as during growth in length of long bones. Endochondral ossification is hard to recapitulate with human cells. Here, the authors generated SOX9+ sclerotomal progenitors from hPSCs, modeling ...

Osteochondrosis of the primary ossification center (Köhler's disease ... this condition seems to be self-limited with a benign course; long-term follow-up, however, is certainly warranted.

T horacic ossification of the posterior longitudinal ligament (TOPLL) is a rare condition associated with ectopic bone formation in the thoracic spine. A long-term follow-up study from Japan shows ...