The periosteum, endosteum, and Haversian canals are the resources of pluripotent mesenchymal stem cells that initiate the development with the healing tissues. The bridging callus found on radiographs predominantly occurs with the periosteum. The severity of ankle fractures will increase with the volume of fracture traces, with trimalleolar and pilon https://www.theorthopaedicandpainpractice.com/what-is-a-long-bone-fracture/