Revision, single-stage anterior cruciate ligament reconstruction with use of quadriceps free tendon autograft--a case report.

: A case of revision anterior cruciate ligament (ACL) reconstruction is described. A man presented at our clinic with knee pain when walking, knee extension deficit and giving way. Primary ACL renostruction was performed 17 months earlier in another clinic. During the arthroscopy ACL graft deficiency was confirmed, tibial hardware protrusion and the lateral meniscus tear was found. Tibial hardware was removed and meniscus tear was repaired. 10 weeks later revision ACL reconstruction was performed as single-stage procedure with use of quadriceps free tendon autograft. We belive that single-stage procedure following a divergent tunnel concept could be a valuable technique in revision ACL surgery.