發(fā)布時間：2018-03-05 11:28

  本文選題：腰椎　切入點：微創(chuàng)　出處：《中國矯形外科雜志》2017年15期 　論文類型：期刊論文

【摘要】：[目的]對一種新型的腰椎后路可經(jīng)皮微創(chuàng)置入的動態(tài)內(nèi)固定系統(tǒng)的動態(tài)棒進行力學(xué)測試,探討其臨床應(yīng)用的理論基礎(chǔ)。[方法]提出新型動態(tài)內(nèi)固定棒的設(shè)計思路,委托器械公司加工制造樣品,進行新型腰椎后路微創(chuàng)動態(tài)內(nèi)固定棒與堅強內(nèi)固定棒的力學(xué)測試,分組進行抗壓、拉伸、扭轉(zhuǎn)試驗(包括正轉(zhuǎn)與反轉(zhuǎn)),記錄微創(chuàng)動態(tài)內(nèi)固定棒與堅強內(nèi)固定棒在不同程度載荷下的位移程度、扭轉(zhuǎn)程度,比較其差異。[結(jié)果]加載生理負荷范圍下,微創(chuàng)動態(tài)內(nèi)固定棒的屈曲活動度、位移活動度及扭轉(zhuǎn)活動度分別為15°、0.48 mm及6°,與堅強固定棒相比均存在顯著差異,有統(tǒng)計學(xué)意義(P0.05)。[結(jié)論]該系統(tǒng)符合微創(chuàng)與動態(tài)固定理念,并具有良好的穩(wěn)定性,同時可部分保留固定節(jié)段的活動度。
[Abstract]:[Objective] to a new lumbar posterior by minimally invasive percutaneous implantation of dynamic dynamic rod fixation system for mechanical testing, to explore the theoretical basis for its clinical application. Methods presented new design idea of dynamic internal fixation instrument manufacturing company, commissioned by mechanical test samples, a new dynamic posterior lumbar fixation stick with strong internal fixation, packet compression, tension and torsion tests (including forward and reverse), the degree of displacement of minimally invasive internal fixation with dynamic recording strong internal fixation in different degree under load, torsion degree, compare the difference. The loading range under physiological load, minimally invasive dynamic internal fixation best flexion, displacement activity and torsional activity of 15 degrees respectively, 0.48 mm and 6 degrees, compared with rigid bars were significantly different, with statistical significance (P0.05). Conclusion the system meets the micro The concept of dynamic setting and dynamic fixation has good stability, while the activity of fixed segment can be partially retained.

【作者單位】： 南華大學(xué)附屬第一醫(yī)院脊柱外科;
【分類號】：R318.01;R687
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本文編號：1570078