This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Complications In  Orthopedics, Subject name: Orthopaedics
Most common muscle involved in volkmamTs ischemic contracture is 
Select and explain. 
A. Flexor- pollicis longus, B. Flexor-digitorum profunds, C. Flexor-indicis, D. Abductor pollicis
B: Flexor-digitorum profunds
Answer: B: Flexor-digitorum profunds 
Explanation: Ans is 'b' i.e. flexor digitorum profundus The below given lines from Turek confirm the answer."Within a few fays pain and swelling su6sides and the voler aspect of the forearm develops a wooden induration. The resulting deformity represents contractual plus paralytic origin. Where it is mild, the deep flexor muscle are partially involved particularly the flexor digitorum profundus, producing a flexion contracture deformity of 1 or more finger."