[Biomechanical investigations of different osteosynthesis procedures in the proximal tibia-introduction of a new measuring system].
In this article a new measuring system for biomechanical studies of various osteosynthesis procedures on the tibia is described. The paired tibias are osteotomized and embedded in PMMA in accordance with a randomization protocol. Testing is then carried out under nonaxial loading at 350 N, 600 N and 900 N, uniaxial bending applying a force of 12 Nm, and torsion at a force of 5 Nm in a universal pneumatic testing machine. Ultrasonic sensors pick up movement at the fracture gap under external loading. Testing of the measuring setup has been successful, and relevant results were obtained.
Mehler
D
D
Klinik und Poliklinik für Unfallchirurgie, Universitätsklinikum, Johannes Gutenberg-Universität Mainz. mehler@unfall.klinik.uni-mainz.de
Hansen
M
M
Rommens
P M
PM
D015519:Bone Density; D001846:Bone Development; D019544:Equipment Failure Analysis / Q000295:instrumentation* / Q000379:methods*; D005593:Fracture Fixation, Internal; D006801:Humans; D066298:In Vitro Techniques; D009984:Orthopedic Fixation Devices; D012680:Sensitivity and Specificity; D013977:Tibia / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D013978:Tibial Fractures / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D014159:Transducers; D014463:Ultrasonography