| 摘要 |
The juxta-articular stabilisation system constitutes of a plate with integral pin and tail part, a plate specific jig, a plate and jig specific drill sleeve, a plate positioner, a slotted head screw, a pin bender, screws and pins. This system can be used for fixation of most types of fractures involving the juxta-articular radius. The plate has a most juxta-articular row of screw holes in individually bendable and detachable extensions especially designed for very distal fractures or the volar lip fractures. The plate and jig assembly have plate positioning apertures in its juxta-articular part to allow adjustment in position of plate in longitudinal, transverse and oblique directions after temporary fixation to the juxta-articular fragment with a pin prior to fixation to diaphyseal fragment. This allows a very precise placement of the plate in the most desirable position. The drill guiding jig can be assembled to the plate prior to surgery thus reducing surgical step and time. The specific orientation of the screws holes in the diaphyseal part of the plate orientates the screws such that when tendons apply forces across the fracture, the plate is wedged between screw and the bone rather than pushed away from the bone. Therefore, more aggressive physical therapy can be commenced earlier and plates with fewer screws in the proximal part can be used without compromising the strength of the fixation. The plate also has bendable and dividable pin part and tail parts on either ends that allows the plate to be used with a chuck or power tool as a pin or drill bit and also have longer purchase into the bone with minimal soft tissue exposure. |
