Resumo

TORRES, Tiago Pinheiro et al. Complicações associadas a extension block pinning no tratamento de ?mallet finger?. Rev. Port. Ortop. Traum. [online]. 2015, vol.23, n.2, pp.135-142. ISSN 1646-2122.

Introduction: Mallet finger is a common deformity. Treatment is usually conservative. However, in cases of acute situations with a fracture with an avulsion greater than 1/3 of the articular surface and subluxation of the distal phalanx surgical treatment is mandatory. One of the most common techniques used today was described by Ishigura and consists of an extension block pinning with the use of two K wires. The purpose of this study was to evaluate the complications of a series of patients operated between 2009 and 2014. The starting point for this work is notion of an inconsistency of the results and consequent demand for reasons that could justify this inconsistency results. It is not the aim to discuss surgical indications or make comparisons with other techniques. Material and Methods: Retrospective study of a series of 15 patients undergoing surgical treatment in our institution with the technique referred previously. Results: All patients were operated in the emergency room. The average waiting time was 8 hours. 9 patients were male. Technical errors were: Kirshner wires with a diameter greater than assumed; flexion of DIF; failure of reduction; failure of the trans-articular nailing. There was need for reintervention in 2 patients with conversion to an open surgery and fixation of the tendon with an anchor. Discussion / Conclusion: The treatment of this type of deformity remains controversial. There is no method (open or closed) where there is excellent results consistently. The method described in this paper has theoretically good results, provided it is used in patients with good indication, by surgeons experienced and skilled in the art. Small residual deformities are well tolerated by the patient, so you can justify a higher prudence in the placement of surgical indication.

Palavras-chave : mallet finger; extension block pinning; hand.

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