Mallet finger (dedo en martillo): tratamiento percutáneo con doble botón. reporte de caso

Background:Mallet finger is a common injury of the terminal extensor tendon that results in loss of active extension of the distal interphalangeal joint. Although conservative treatment is usually the first-line option, subacute or chronic cases may present unsatisfactory outcomes, making surgical management necessary. Case Presentation:We report the case of a 35-year-old male patient with a mallet finger deformity of the fifth finger of the left hand following a sports-related injury, with subacute evolution and persistent extension deficit. A percutaneous surgical technique using a double-button fixation (dorsal and volar) was performed. Nonabsorbable suture material was passed percutaneously with the aid of a needle, maintaining the distal interphalangeal joint in hyperextension for six weeks. Results:At the end of the treatment period, the patient achieved functional recovery of distal interphalangeal joint extension, with satisfactory clinical outcome and no local or infectious complications. Conclusions:Percutaneous double-button fixation may represent a feasible therapeutic alternative in selected cases of subacute or chronic mallet finger. Further studies with larger sample sizes are required to evaluate the reproducibility and long-term outcomes of this technique