title: Biomechanical analysis of the trapeziometacarpal joint after surface replacement arthroplasty.
abstract: A biomechanical analysis of the trapeziometacarpal joint was performed in 7 fresh-frozen normal human cadaveric hands to compare the kinematics of the trapeziometacarpal joint before and after surface total joint replacement. Using a 3-space magnetic Isotrak system (Polhemus, Colchester, VT), which provides a 3-dimensional analysis of motion of joints as well as translation, we found that kinematics and stability of the trapeziometacarpal joint could be duplicated by joint surface replacement arthroplasty provided that normal ligament tensions were present.
authors.affiliation: Division of Orthopedic Research, Biomechanics Laboratory, Mayo Clinic/Mayo Foundation, Rochester, MN 55905, USA.
authors.forename: S
authors.initials: S
authors.lastname: Uchiyama
authors.forename: W P
authors.initials: WP
authors.lastname: Cooney
authors.forename: G
authors.initials: G
authors.lastname: Niebur
authors.forename: K N
authors.initials: KN
authors.lastname: An
authors.forename: R L
authors.initials: RL
authors.lastname: Linscheid
mesh_terms: D019643:Arthroplasty, Replacement; D001696:Biomechanical Phenomena; D005384:Finger Joint / Q000502:physiology / Q000601:surgery; D006801:Humans; D011184:Postoperative Period; D016059:Range of Motion, Articular; D013933:Thumb / Q000502:physiology / Q000601:surgery*; D016896:Treatment Outcome