<prompt> In supra condylar fracture of humerus, the nerve most commonly injured isRadial nerveUlnar nerveMedian nerveAuxiliary nerve  <response>: C i.e. Median nerve Anterior interosseous nerve is the most commonly injured nerve with loss of motor- power to flexor pollicis longus deep flexor to the index finger in extension type supracondylar fractureQ Over all involvement of peripheral nerve in fracture supracondylar humerus is AIN median nerve radial nerve ulnar nerveQ 