TOPIC: FOOT & ANKLE
A classic ‘claw toe’ deformity is distinguished pathomechanically from a hammertoe or mallet toe by the involvement of specific joints. Which of the following defines the exact structural presentation of a true claw toe?
A
Hyperextension of the metatarsophalangeal (MTP) joint coupled with flexion of both the proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints
B
Flexion of the proximal interphalangeal (PIP) joint with a neutrally aligned or extended distal interphalangeal (DIP) joint
C
Isolated flexion deformity of the distal interphalangeal (DIP) joint with a neutral proximal interphalangeal (PIP) joint
D
Medial deviation of the proximal phalanx with overlapping of the adjacent toe, secondary to plantar plate rupture