Supracondylar fracture is usually caused by: (A) Hyperflexion injury, (B) Axial rotation, (C) Extension injury, (D) Hyperextension injury
Answer is D. supracondylar fracture of the humerus is the most serious fracture in childhood. Mechanism: The fracture is caused by a fall on an outstretched hand.As hand strikes the ground the elbow is forced into hyperextension resulting in fracture of humerus above the condyles. Ref: Essential Ohopaedics, Maheswari & Mhaskar, Edition 5, Page no: 97