Question

multiple choice question required which deformity is described as flexion of the proximal interphalangeal joint and extension of the distal interphalangeal joint? please select your answer. a mallet finger b boutonniere deformity c swan - neck deformity

Explanation:

Mallet finger is flexion of the distal interphalangeal joint. Boutonniere deformity is flexion of the proximal interphalangeal joint and extension of the distal interphalangeal joint. Swan - neck deformity is hyperextension of the proximal interphalangeal joint and flexion of the distal interphalangeal joint.

Answer:

B. Boutonniere deformity