• J Díaz Heredia, M A Ruiz Iban, R Cuéllar Gutiérrez, R Ruiz Diaz, I Cebreiro Martinez del Val, and L Turrion Merino.
• Department of Orthopaedic Surgery, Hospital Universitario Ramón y Cajal, Cta Colmenar Km 9.100, 28034, Madrid, Spain, drdiazheredia@gmail.com.
• Arch Orthop Trauma Surg. 2014 Jun 1; 134 (6): 829-34.

IntroductionThis is a retrospective case report of three cases with an early postoperative transtibial fistula after anterior cruciate ligament reconstruction (ACL).Materials And MethodsThe patients had undergone ACL reconstruction and complained of fluid drainage through the not-healed wound or swelling localized on the anteromedial aspect of the ipsilateral proximal tibia during the early postoperative. Magnetic resonance imaging showed a multilocular fluid-filled cyst arising from the distal hole of the tibial bone tunnel. Open resection of the fistula and the cyst was performed in all cases and communication between the tibial tunnel and the joint space was confirmed. During revision surgery the distal hole of the tibial tunnel was covered with a fascio-periosteal flap.ResultsAll wounds healed without complications. There was no recurrence of drainage or cyst formation. At 2 years follow-up the knee function was normal and was not affected by the complication in any of the patients. Early postoperative transtibial fistulae after ACL reconstruction are rare complications that clinically present either as anterior tibial cysts or persistent wound drainage. Surgical treatment is required, and some delay in the rehabilitation routine is required, but the final outcome is not affected.

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