Avulsion of extensor tendon give rise to?
It is the flexion deformity of the distal interphalangeal joint usually due to avulsion of extensor tendon of distal phalanx. Ref: Current Diagnosis & Treatment in Ohopedics 3/e, page 538,564-65.
Mallet finger
Dupuytren's contracture
Trigger finger
Swan neck deformity