title: [Biomechanical considerations concerning the use of internal fixator systems in spinal interventions].
abstract: Three different internal fixateurs ("Dick", "Kluger", "SOCON") were investigated in an in-vitro setting. The systems showed nearly identical deformation under physiological loads. A new definition for the stabilizing capacity indicated a distinct weakness under compressive and torsional loading. In order to avoid early failure of the implant and/or the vertebra-implant interface bracing and a restricted mobilisation is recommended until healing of the fracture/fusion has taken place.
authors.affiliation: Orthopädische Universitätsklinik, St. Josef-Hospital, Ruhr-Universität Bochum.
authors.forename: R
authors.initials: R
authors.lastname: Steffen
authors.forename: L P
authors.initials: LP
authors.lastname: Nolte
authors.forename: M
authors.initials: M
authors.lastname: Jergas
mesh_terms: D000328:Adult; D006801:Humans; D016268:Internal Fixators; D008159:Lumbar Vertebrae / Q000502:physiology* / Q000601:surgery; D009068:Movement; D016059:Range of Motion, Articular; D013123:Spinal Fusion / Q000295:instrumentation* / Q000379:methods; D013718:Tensile Strength; D014102:Torsion Abnormality
vernacular_title: Biomechanische Uberlegungen zur Anwendung von Fixateur interne Systemen bei Wirbelsäuleneingriffen.