Surgery ‘Mallet finger’ is a common traumatic lesion resulting in flexion deformity of distal interphalangeal joint. The basic pathology of this condition is A Avulsion fracture of middle phalanx B Rupture of collateral slips of extensor expansion C Rupture of central slip of extensor expansion D Dislocation of distal interphalangeal joint 💡 Explanation 'Mallet finger' is a common traumatic lesion resulting in flexion deformity of distal interphalangeal joint. The basic pathology of this condition is ✓ Correct Answer: B. Rupture of collateral slips of extensor expansion