PATHOLOGY

Detailed explanation-1: -Primary bone healing is the reestablishment of the cortex without the formation of a callus. It occurs if a fracture is adequately “fixed” through reduction, immobilization, and rehabilitation. Secondary bone healing, as described above, occurs through the formation of a callus and subsequent remodeling.

Detailed explanation-2: -There are four stages in the repair of a broken bone: 1) the formation of hematoma at the break, 2) the formation of a fibrocartilaginous callus, 3) the formation of a bony callus, and 4) remodeling and addition of compact bone.

Detailed explanation-3: -Stage 2: Repair phase, the granulation tissue is replaced by soft (cartilaginous) and then hard callus of woven bone at the fracture site.

Detailed explanation-4: -A fibrocartilage or fracture callus is a temporary formation of fibroblasts and chondroblasts that form at the area of a bone fracture as the bone attempts to heal itself.

Detailed explanation-5: -Five Stages of Healing a Fracture. First stage: Hematoma formation. Second stage: Development of fibrocartilaginous callus. Third Stage: Development of bony calluses. Fourth Stage: Bone remodeling. Fifth Stage: Bone support and recovery. 21-Jan-2023