title: Integration of hamstring tendon graft with bone in reconstruction of the anterior cruciate ligament.
abstract: Anterior cruciate ligament (ACL) reconstruction using four-strand hamstring graft with round-headed, cannulated, interference (RCI) screw fixation requires osteointegration of the tendon graft. This report describes the histology at the bone-tendon junction of two specimens retrieved from patients undergoing revision surgery after traumatic mid-substance ACL graft rupture at 6 and 10 weeks after initial reconstruction. Revision was performed at 12 and 15 weeks. Integration of the graft was evident by observation of collagen fiber continuity between bone and tendon. This histology plus the low incidence of early graft failure suggest that free tendon autograft attached to bone by RCI screw allows adequate osteointegration between 6 and 15 weeks after surgery.
authors.affiliation: North Sydney Orthopaedic and Sports Medicine Centre, Sydney, Australia.
authors.forename: L A
authors.initials: LA
authors.lastname: Pinczewski
authors.forename: A J
authors.initials: AJ
authors.lastname: Clingeleffer
authors.forename: D D
authors.initials: DD
authors.lastname: Otto
authors.forename: S F
authors.initials: SF
authors.lastname: Bonar
authors.forename: I S
authors.initials: IS
authors.lastname: Corry
mesh_terms: D016118:Anterior Cruciate Ligament / Q000502:physiology / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D001863:Bone Screws; D006801:Humans; D016348:Osseointegration / Q000502:physiology*; D012086:Reoperation; D013710:Tendons / Q000502:physiology / Q000637:transplantation*; D014182:Transplantation, Autologous