Orthopaedics Injury to radial nerve in the lower part of spiral groove – A Spares nerve supply to extensor carpi radialis longus B Results in paralysis of anconeus muscle C Leaves extensions at elbow joint intact D Weakens pronation movement 💡 Explanation Injury to radial nerve in the lower part of spiral groove - ✓ Correct Answer: C. Leaves extensions at elbow joint intact