title: Stability comparison of anterior cruciate ligament between double- and single-bundle reconstructions.
abstract: The purpose of this study was to evaluate the intra-operative stability during double-bundle anterior cruciate ligament (ACL) reconstructions (20 knees) using a navigation system and compare the results with those obtained from single-bundle reconstructions (20 knees). After registering the reference points during ACL reconstruction, antero-posterior and rotational stability tests with 30 degrees knee flexion using a navigation system were measured before and after reconstructions on both groups. The change of antero-posterior translation after and before reconstruction was 12.5 mm in the double-bundle group and 10.5 mm in the single-bundle group, showing significant inter-group difference (p=0.014, from 17.5 mm to 5.1 mm in the double-bundle and from 16.6 mm to 6.1 mm in the single-bundle group). The mean rotational stability of the double-bundle group also showed more significant improvement after reconstruction compared to that of the single-bundle group (9.8 degrees in the double- and 5.6 degrees in the single-bundle groups, p<0.001). These findings suggest that a double-bundle ACL reconstruction restores greater knee stability with respect to the antero-posterior and rotational stability than a single-bundle reconstruction.
authors.affiliation: Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-gun, Jeonnam, South Korea.
authors.forename: Jong Keun
authors.initials: JK
authors.lastname: Seon
authors.forename: Sang Jin
authors.initials: SJ
authors.lastname: Park
authors.forename: Keun Bae
authors.initials: KB
authors.lastname: Lee
authors.forename: Taek Rim
authors.initials: TR
authors.lastname: Yoon
authors.forename: Hyoung Yeon
authors.initials: HY
authors.lastname: Seo
authors.forename: Eun Kyoo
authors.initials: EK
authors.lastname: Song
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D001182:Arthroscopy / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007593:Joint Instability / Q000517:prevention & control*; D007718:Knee Injuries / Q000175:diagnosis / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D011336:Probability; D011446:Prospective Studies; D016059:Range of Motion, Articular / Q000502:physiology; D019651:Plastic Surgery Procedures / Q000379:methods*; D020127:Recovery of Function; D018570:Risk Assessment; D025321:Surgery, Computer-Assisted / Q000379:methods; D013710:Tendons / Q000637:transplantation*; D014184:Transplantation, Homologous; D016896:Treatment Outcome; D055815:Young Adult