| 摘要 |
A cannulated screw is employed to fasten an intramedullary nail to a bone of a patient. A guide is disposed within the intramedullary nail and registered with a preformed securing hole in the nail. Preferably, the guide is fabricated from a bio-absorbable material such as polyglycolic acid and fixedly registered to the distal securing holes. A flexible drill shaft is directed to the selected securing hole by the guide. The drill is operated to drill through the bone cortex and soft tissue of the patient to exit the skin of the patient. A cannulated fixation screw is fitted over the exposed drill bit and is then driven into the patient, guided by the drill bit back to the selected securing hole. The drill bit is then extracted and the cannulated screw is driven through the intramedullary nail into the opposite cortex of the bone. After all of the fixation screws have been placed, the intramedullary nail is fastened to the bone.
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