title: Comparison of two methods for reconstruction of the posterior cruciate ligament using a computer based method: quantitative evaluation of laxity, three-dimensional kinematics and ligament deformation measurement in cadaver knees.
abstract: The aim of this paper is to present a biomechanical comparison of two different methods for reconstruction of the posterior cruciate ligament in cadaver knees. We used an original computer-based method allowing precise calculation of three-dimensional (3D) knee kinematic parameters as well as the estimation of combined graft deformation (elongation-flexion-torsion). After isolated posterior cruciate ligament (PCL) dissection, double bundle and 'over-the-bottom' methods were performed successively on each knee using synthetic polyester ligaments. The effect of pre-tensioning was tested with the 'over-the-bottom' method. antero-posterior (A-P) and rotational laxity as well as 3D kinematics were recorded and analysed. Our computer based method allowed us to show that both reconstruction methods were equivalent in restoring A-P and rotational laxity as well as kinematic curves. Combined deformation of the prostheses was equivalent for both ligaments.
authors.affiliation: Laboratoire de recherche en Imagerie et Orthopédie, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Hôpital Notre-Dame, Pavillon J.A. de Sève, Montreal, Québec, Canada H2L 4M1. nicola.hagemeister@etsmtl.ca
authors.forename: N
authors.initials: N
authors.lastname: Hagemeister
authors.forename: N
authors.initials: N
authors.lastname: Duval
authors.forename: L 'H
authors.initials: L'
authors.lastname: Yahia
authors.forename: W
authors.initials: W
authors.lastname: Krudwig
authors.forename: U
authors.initials: U
authors.lastname: Witzel
authors.forename: J A
authors.initials: JA
authors.lastname: de Guise
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001696:Biomechanical Phenomena; D002102:Cadaver; D005269:Femur / Q000502:physiology; D006801:Humans; D021621:Imaging, Three-Dimensional; D007593:Joint Instability / Q000175:diagnosis; D007719:Knee Joint / Q000502:physiology; D008023:Ligaments, Articular / Q000601:surgery; D019637:Orthopedic Procedures / Q000379:methods*; D011091:Polyesters; D016119:Posterior Cruciate Ligament / Q000601:surgery*; D019736:Prostheses and Implants; D025321:Surgery, Computer-Assisted / Q000379:methods*; D013718:Tensile Strength; D013977:Tibia / Q000502:physiology; D014102:Torsion Abnormality
chemical_list: D011091:Polyesters