Zunaira saleh3 months ago

Fracture healing.

A, Haematoma formation and local inflammatory response at the fracture site. B, Ingrowth of granulation tissue with formation of soft tissue callus. C, Formation of procallus composed of woven bone and cartilage with its characteristic fusiform appearance and having 3 arbitrary components—external, intermediate and internal callus. D, Formation of osseous callus composed of lamellar bone following clearance of woven bone and cartilage. E, Remodelled bone ends; the external callus cleared away. Intermediate callus converted into lamellar bone and internal callus developing bone marrow cavity.