title: Tibial Tunnel Cyst Formation after Anterior Cruciate Ligament Reconstruction Using a Non-Bioabsorbable Interference Screw.
abstract: Tibial cyst formation following the use of bioabsorbable interference screws in anterior cruciate ligament (ACL) reconstruction is well-described; however, cyst formation after the use of metallic interference screws is not well-documented. We describe a case of osteolytic lesion of the proximal tibia presenting to us 20 years after ACL reconstruction using an autologous bone-tendon-bone graft. The original graft fixation technique was interference fixation with a metal screw in the tibial and femoral tunnels. A two-stage revision reconstruction of the ACL was undertaken with curettage and bone grafting of the tibial lesion in the first stage and reconstruction using a four-strand hamstring tendon in the second stage. The patient recovered satisfactorily with complete healing of the cyst and returned to pre-injury level of activities. We have reviewed case reports and case series that describe the aetiology of intra-osseous cyst formation following ACL reconstruction.
authors.affiliation: Department of Trauma and Orthopaedics, North Manchester General Hospital, Manchester, UK.
authors.forename: Yogesh V
authors.initials: YV
authors.lastname: Joshi
authors.affiliation: Department of Trauma and Orthopaedics, Blackpool Victoria Hospital, Blackpool, UK.
authors.forename: Deepu
authors.initials: D
authors.lastname: Bhaskar
authors.affiliation: Department of Trauma and Orthopaedics, North Manchester General Hospital, Manchester, UK.
authors.forename: Padmanabh M
authors.initials: PM
authors.lastname: Phaltankar
authors.affiliation: Department of Trauma and Orthopaedics, Blackpool Victoria Hospital, Blackpool, UK. ; School of Medicine and Dentistry, University of Central Lancashire, Preston, UK. ; Institute of Inflammation and Repair, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK.
authors.forename: Charalambos P
authors.initials: CP
authors.lastname: Charalambous
keywords: Anterior cruciate ligament reconstruction; Interference screw; Knee; Metal; Tibial cyst