CAJ | 학술논문

目的测量骶髂螺钉不同进针点置钉对骨盆外旋不稳定的生物力学影响,为临床应用提供试验依据.方法 10具新鲜冰冻成人骨盆标本,骶髂关节拉力螺钉经进针点B(髂后下棘前2.5 cm与坐骨大切迹上4.0 cm的交点)、A(B点同一水平面前方1.0 cm)、C(B点同一水平面后方1.0 cm)固定骶髂关节.测量骶髂关节前韧带完整组、A进针点组、B进针点组、C进针点组在相同外旋应力下骶髂关节、耻骨联合的分离距离,从而比较不同进针点的固定强度.结果在对抗外旋力上,韧带完整组、C进针点组与A/B组差异均具有统计学意义(P<0.05);A、B进针点组之间差异无统计学意义(P>0.05).在骶髂关节稳定性上,除韧带完整组、B进针点组之间差异无统计学意义(P>0.05)外,余各组间差异均具有统计学意义(P<0.05).结论对骶髂关节稳定性B进针点更为优越,更为安全、有效.
목적 측량저가라정불동진침점치정대골분외선불은정적생물역학영향,위림상응용제공시험의거.방법 10구신선빙동성인골분표본,저가관절랍력라정경진침점B(가후하극전2.5 cm여좌골대절적상4.0 cm적교점)、A(B점동일수평면전방1.0 cm)、C(B점동일수평면후방1.0 cm)고정저가관절.측량저가관절전인대완정조、A진침점조、B진침점조、C진침점조재상동외선응력하저가관절、치골연합적분리거리,종이비교불동진침점적고정강도.결과 재대항외선력상,인대완정조、C진침점조여A/B조차이균구유통계학의의(P<0.05);A、B진침점조지간차이무통계학의의(P>0.05).재저가관절은정성상,제인대완정조、B진침점조지간차이무통계학의의(P>0.05)외,여각조간차이균구유통계학의의(P<0.05).결론 대저가관절은정성B진침점경위우월,경위안전、유효.
Objective To observe the biomechanical effect of sacroiliac screw fixation with dif-ferent needling points in treatment of extorsion pelvic instabihty so as to provide experimental basis for clinical application. Methods Ten fresh adult pelvis specimens were fixated by sacroiliac screw with needling points B (2.5 cm anterior to posteroinferior iliac spine and 40. cm posterior to greater sciatic notch), A (0.1 cm anterior to the same horizontal plane of point B) and C ( 1.0 cm posterior to the same horinzontal plane of point B). The shifting of the pubic symphysis diastasis and the sacroiliac joint crack under the same extorsion force was measured in integrity ligament group, point A group, point B group and point C group to compare the stability of different needling points. Results In confronting extor-sion force, integrity ligament group and point C group were obviously inferior to point A group and point B group (P<0.05 ) but there was no statistical difference between point B group and point A group (P > 0.05). As for the stability of the sacroiliac joint, there was statistical difference among all groups ( P < 0.05 ), while there was no statistical difference between integrity ligament group and point B group ( P > 0.05). Conclusion Point B is the most stable, safe and effective needling point.