“…Various methods have been proposed for the surgical treatment of chronic mallet deformity include tendon plication, tendon repair with tendon graft, threading of a strip of the lateral band into the distal phalanx, tenodermodesis [2] , [8] , [9] . These surgeries aim to reconstruct the disrupted extensor mechanism and correcting the mallet deformity [8] . However, they often result in restricted DIP flexion and even boutonniere deformity due to the overtightened DIP.…”