<prompt> In which of the following deformities is the distal interphalangeal joint flexed and proximal interphalangeal joint extended?Boutonierre DeformitySwan neck deformityZ deformityClaw hand  <response>: Boutonniere deformity: flexion contracture of PIP joint and extension of DIP jointSwan neck deformity: Hyperextension of PIP joint and flexion at DIP jointZ-deformity: radial detion of the wrist with ulnar detion of fingersRefer: Mohindras Fundamentals of Ohopedics, 2nd edition, pg no. 420 