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: Orthopaedics
Essex Lopresti lesion in upper limb 
Select and explain. 
A. Injury to interosseous membrane, B. Radial head and DER fracture, C. Radial shaft, D. Radial shaft and radio-ulnar joint fracture
A: Injury to interosseous membrane
Answer: A: Injury to interosseous membrane 
Explanation: A Kelly hemostat is passed from distal ulna to proximal radius at a 21° angle to the shaft to replicate the fibers of the central band.
Injury to the interosseous membrane of the forearm typically occurs in conjunction with disruption of the radial head and the distal radioulnar joint.