| 摘要 |
<p>A unilateral external fixation device (10) comprises a distal frame (12) and a proximal frame (14) interconnected by a hinge (16) formed of mating, partially spherical-shaped surfaces (22), (30) which permits relative movement of the distal frame and proximal frame. Each of the frames includes one or more pin clamps (58) which mount half pins (56) inserted with the proximal or distal segments (52), (54) of a fractured bone (48) to immobilize the bone segments and permit reduction of the fracture (50). The focal point (51) of the partially spherical-shaped surfaces of the hinge is positioned in direct alignment with the fracture, preferably in a vertical plane passing through the fracture transverse to the longitudinal axis of the bone, so that manipulation of one or both of the distal and proximal frames permits a relatively slight and precise movement of the bone segments connected thereto by the half pins to ensure proper reduction of the fracture.</p> |
