Mechanical analysis of Kirschner wire fixation in a phalangeal model.
Transverse divisions of the mid-shaft of freshly frozen pig metacarpals were fixed with Kirschner wires of two sizes and using four different configurations. Compared to the usual cross-pin fixation using wires of 0.889 mm. four wires (0.712 mm) eccentrically placed and with their ends hooked provided a 300% improvement in bending rigidity and 170% in bending movement.
D000818:Animals; D005383:Finger Injuries / Q000503:physiopathology / Q000601:surgery*; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000379:methods; D050723:Fractures, Bone / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008954:Models, Biological; D013314:Stress, Mechanical; D013552:Swine