Anterior cruciate ligament reconstruction and the long-term incidence of gonarthrosis.

Journal and index pages often block iframe embedding. This reader keeps the evidence details in Orthonotes and leaves the source page one click away.

Abstract

[Indexed for MEDLINE] 16. Knee Surg Sports Traumatol Arthrosc. 2017 Apr;25(4):1316-1327. doi: 10.1007/s00167-016-4204-0. Epub 2016 Jun 21. Tunnel widening in single- versus double-bundle anterior cruciate ligament reconstructed knees. Aga C(1)(2)(3), Wilson KJ(4), Johansen S(5), Dornan G(4), La Prade RF(4), Engebretsen L(6)(7). Author information: (1)Martina Hansens Hospital, Pb 823, 1306, Sandvika, Norway. cathrineaga@gmail.com. (2)Orthopaedic Department Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway. cathrineaga@gmail.com. (3)Oslo Sports Trauma Research Center, Oslo, Norway. cathrineaga@gmail.com. (4)The Steadman Clinic, Steadman Philippon Research Institute, 181 W. Meadow Dr. Suite 1000, Vail, CO, 81657, USA. (5)Lovisenberg Diakonale Hospital, Pb 4970 Nydalen, 0440, Oslo, Norway. (6)Orthopaedic Department Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway. (7)Oslo Sports Trauma Research Center, Oslo, Norway. PURPOSE: The consequence of tunnel widening after ACL reconstructions is foremost of importance in case of revision surgery. Tunnel expansion leads to bone loss close to the joint, and additional surgery with bone grafting prior to revision surgery might be necessary. The purpose of the study was to measure widening of the tunnels in single-bundle (SB) and double-bundle (DB) ACL reconstructed knees during the first year after surgery, detected by a novel, semi-automated 3D CT imaging modality. Our hypothesis was that there would be a difference between the initial tunnel size and the size measured one year post-operatively due to the tunnel widening process. Further, the purpose was to evaluate whether there were any differences in the amount of tunnel widening between the two surgical techniques. METHODS: Twenty patients who underwent DB ACL reconstruction, and 22 patients who underwent SB ACL reconstruction, performed a CT scan of the bony tunnels, during their first days after surgery and one year post-operatively. The CT scans were transformed into 3D CT reconstructions, and the tunnels were measured with the "best-fit cylinder" method, measurements at the level of tunnel aperture and 10.0 mm from the joint line. RESULTS: All tunnels in the DB and SB ACL reconstructed knees exhibited widening during the first year after the operation (p