Orthopaedics Swan neck deformity is: A Hyperextension at DIP, Flexion of PIP B Extension of DIP, Hyperflexion at PIP C Extension of both DIP & PIP D Flexion at DIP, Hyperextension at PIP 💡 Explanation Swan neck deformity is: ✓ Correct Answer: D. Flexion at DIP, Hyperextension at PIP