跟骨载距突螺钉导向器基础与临床上的准确性评价

doi:10.13418/j.issn.1001-165x.2015.05.008

Abstract

Abstract:

Objective　To discuss the accuracy of the self-manufactured guider of the calcaneous sustentaculum tali screw for the fixation of the calcaneous sustentaculum tali in the calcaneous specimens and the clinical.　Methods　(1) 15 pairs of calcaneous specimens were collected for this study. A 2.5 mm Kirschner-wire was drilled into each of the cadaveric feet according to the guider and the position of the Kirschner-wire. (2) 25 cases (28 feet) of calcaneal fracture were enrolled in this study. According to Sanders classification, there were 9 cases falling into type-II，11 cases type-III and 8 cases type-IV. The guider of the calcaneous sustentaculum tali screw was used in each case and the sustentaculum tali screw position was evaluated by X-ray postoperatively.　Results　(1) In the specimens, all of the 30 Kirschner-wires were implanted into the calcaneous sustentaculum tali and 29 Kirschner-wires were passed though the middle of the sustentaculum tali; However, 1 Kirschner-wire was passed through the anteroinferior part of the sustentaculum tali. The accurate rate by this guider was 96.7%. (2) A total of 28 sustentaculum tali screws were implanted in 25 patients, and 27 screws were passed thoughthe middle of the sustentaculum tali. However, 1 screw was passed through the anterior part of the sustentaculum tali. The accuracy rate was 96.4%.　Conclusion　The self-manufactured guider of the calcaneous sustentaculum tali screw can significantly improve the accuracy of the screw or Kirschner-wire being implanted into the sustentaculum tali, which can avoid the artificial iatrogenic complications caused by the position deviation of the sustentaculum tali screw. Therefore, it is appropriate to be promoted widely in clinical practice.

Key words: Calcaneal, Fracture, Sustentaculum tali, Screw with director

References

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The accuracy of evaluation in the foundation and clinical application of the self-manufactured guider of the calcaneous sustentaculum tali screw for the fixation of the calcaneous sustentaculum tali

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