Orthopaedics In which of the following deformities is the distal interphalangeal joint flexed and proximal interphalangeal joint extended? A Boutonierre Deformity B Swan neck deformity C Z deformity D Claw hand 💡 Explanation In which of the following deformities is the distal interphalangeal joint flexed and proximal interphalangeal joint extended? ✓ Correct Answer: B. Swan neck deformity