The surgical treatment for chronic mallet finger

Abstract

Objective To discuss the surgical procedures for chronic mallet finger without definite history of trauma. Methods From July 2014 to June 2016, 19 cases (20 fingers) of chronic mallet finger without definite history of trauma were received surgical treatment. The distal interphalangeal (DIP) joints of 16 cases were fixed in over-extension position with a kirschner wire combined with extensor tendon being sutured, while 1 case was treated with palmar longus tendon graft after being fixed. Postoperatively the proximal interphalangeal joint was fixed in 30° to 45° flexion by a splint for 6 weeks in these 17 cases. Fusion of the DIP joint was done in the other 2 cases. Results All the patients were follow-up for 3 to 24 months. According to Patel evaluation criteria, the results of those who obtained extensor tendon directly sutured were rated as excellent in 2 cases, good in 10 cases, fair in 2 cases and poor in 2 cases. The DIP joint of the patient who received palmar longus tendon graft had no active range of motion at 3-month follow-up. Bone union of the fracture was achieved in 2 cases of DIP joint fusion 6 weeks after surgery. Conclusion It is an effective way to treat chronic mallet finger using Kirschner wire fixation combined with extensor tendon being sutured. Key words: Tendon injuries; Treatment outcome; Surgical procedures,operative; Mallet finger