Orthopaedics A child with Supracondylar fracture is unable to flex his interphalangeal joint of thumb. Which nerve is most likely injured ? A Median nerve B Deep branch of ulnar nerve C Posterior Interosseus nerve D Anterior Interosseus nerve 💡 Explanation A child with Supracondylar fracture is unable to flex his interphalangeal joint of thumb. Which nerve is most likely injured ? ✓ Correct Answer: D. Anterior Interosseus nerve