title: Quantitative comparison of three different types of anterior cruciate ligament reconstruction methods: laxity and 3-D kinematic measurements.
abstract: In this project, we compared knee laxity and 3-D knee kinematics after ACL reconstruction on cadaver knees using (1) bone-patellar tendon-bone two-tunnel; (2) synthetic ligament two-tunnel; and (3) synthetic ligament "over-the-top" technique. We used a computer assisted system, based on the acquisition of the knee's movement with magnetic sensors (Polhemus, Vermont, USA). The use of personalised three-dimensional (3D) models of the bones enabled us to ensure a reproducible measurement of three-dimensional kinematic and laxity parameters. Our results showed that even when knee laxity was restored to normal, 3D kinematic measurements revealed that the reconstructions tended to under or over-constrain the knee's movement. This study shows that 3D kinematics is a complementary measurement that can be useful to get a better comprehension of the knee's function after ligament reconstruction.
authors.affiliation: Laboratoire de recherche en Imagerie et Orthopédie (LIO), Centre de recherche du Centre hospitalier de l'Université de Montréal (CHUM), Hôpital Notre-Dame, Montreal, Quebec H2L 4M1, Canada. nicola.hagemeister@etsmtl.ca
authors.forename: Nicola
authors.initials: N
authors.lastname: Hagemeister
authors.forename: Raymond
authors.initials: R
authors.lastname: Long
authors.forename: L'Hocine
authors.initials: L
authors.lastname: Yahia
authors.forename: Nicolas
authors.initials: N
authors.lastname: Duval
authors.forename: Wilfried
authors.initials: W
authors.lastname: Krudwig
authors.forename: Ulrich
authors.initials: U
authors.lastname: Witzel
authors.forename: Jacques A
authors.initials: JA
authors.lastname: de Guise
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D016118:Anterior Cruciate Ligament / Q000502:physiology* / Q000601:surgery*; D001182:Arthroscopy / Q000379:methods; D001696:Biomechanical Phenomena; D002102:Cadaver; D003201:Computers; D006801:Humans; D007718:Knee Injuries / Q000601:surgery; D007719:Knee Joint / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D008953:Models, Anatomic; D019651:Plastic Surgery Procedures / Q000379:methods; D013696:Temperature