1. Supra condylar fracture of humerus bone / Tight plaster
2. Due to supra condylar fracture / tight plaster brachial artery damage (artery compress, tear)
3. Blood flow decrease (Ischaemia) – Volkmann’s ischaemia
4. If Ischaemia persist for long time – It cause muscle necrosis
5. Contracture (short and hard) and fibrosis of muscle – Volkmann’s Ischaemia Contracture (also called volkmann’s contracture)
6. Deformity in muscle