HEALING IN SPECIALIZED TISSUES

Fracture healing-

• Healing of fracture by callus formation depends on-

1. Traumatic/ pathological
2. Complete/ incomplete
3. Simple/ compound 

Healing of any fracture takes place by-

1. Primary union of fracture
2.  Secondary union (more common)- it is described under 3 heading-

a) Procallus formation- it is as follows

1. Hematoma formation
2. Local inflammatory response- fragments of necrosed bone are scavenged by macrophages & osteoclasts
3. Ingrowth of granulation tissue- soft tissue callus formed
4. Callus composed of woven bone & cartilage

b) Osseous callus formation-

• Callus formation takes place- 4 to 12 weeks

c) Remodelling

• Osteoblast & osteoclast removes necrotic content, which results in remodelling of the united bone end into compact bone.

Don’t Forget to Solve all the previous Year Question asked on Healing of specialised tissue (fracture healing)