title: Development and application of an inside-to-out drill bit for anterior cruciate ligament reconstruction.
abstract: We report a novel drilling device for anterior cruciate ligament (ACL) reconstruction that has been developed. We invented a special inside-to-out drill bit that can make a bone socket in an inside-to-out fashion. A blade at the tip of a 4.5-mm diameter drill bit closes when the drill bit is in orthograde rotation, but the blade opens when the drill bit is in reverse rotation. The special drill bit is introduced into the joint through a 4.5-mm diameter bone tunnel rotating the bit in the orthograde direction. Then the drill bit is switched to reverse rotation and is pulled backward so that it bores the bone from the inside out. We have used this special drill bit in treating 31 ACL-injured knees and have experienced no problems or complications with the procedure.
authors.affiliation: Department of Orthopaedics, Juntendo University School of Medicine, Tokyo, Japan. s-kim@med.juntendo.ac.jp
authors.forename: Sung-Gon
authors.initials: SG
authors.lastname: Kim
authors.forename: Hisashi
authors.initials: H
authors.lastname: Kurosawa
authors.forename: Keishoku
authors.initials: K
authors.lastname: Sakuraba
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ikeda
authors.forename: Shunji
authors.initials: S
authors.lastname: Takazawa
authors.forename: Yuji
authors.initials: Y
authors.lastname: Takazawa
mesh_terms: D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D004867:Equipment Design; D005260:Female; D005269:Femur / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D019637:Orthopedic Procedures / Q000295:instrumentation*; D013710:Tendons / Q000637:transplantation; D013977:Tibia / Q000601:surgery*; D016896:Treatment Outcome