This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
All are true Volkmann ischemic contracture except 
Select and explain. 
A. Ischemic muscle is replaced by fibrous, B. Ulnar nerve palsy may be present, C. Extension deformity of the wrist & fingers, D. Flexion at the metacarpophalangeal
C: Extension deformity of the wrist & fingers
Answer: C: Extension deformity of the wrist & fingers 
Explanation: Ans. c. Extension deformity of the wrist & fingersVOLKMANN'S ISCHEMIAEarly complication of supracondylar fracture.Ischemic injury to the muscles and nerves of the flexor compament of the fore arm.D/t occlusion of brachial aery.Tissue pressure readings within 30 mm Hg of the patient's diastolic blood pressure(perfusion pressureMuscles supplied by anterior interosseus aery are most susceptible, as it is an end aery.Most commonly affected muscle: flexor pollicis longus & medial half of flexor digitorum profundus.Median nerve is most commonly involved.Treatment: fasciotomy