發(fā)布時間：2019-05-23 17:57

【摘要】：目的:通過生物力學(xué)測試研究腰椎間盤纖維環(huán)切口不同修復(fù)方法的生物力學(xué)強度。方法:選取小牛腰椎標(biāo)本制成50個脊柱功能節(jié)段,每個節(jié)段均在纖維環(huán)上作一10mm橫切口。按照不同修復(fù)方法隨機平均分為5組:粘合劑組(A組,選用DermaBond粘合切口)、簡單縫合組(B組,采用常規(guī)U型縫合法處理切口)、MPSS組(C組,采用改良荷包縫合法處理切口)、粘合劑+簡單縫合組(D組)及粘合劑+MPSS組(E組),然后進行纖維環(huán)抗靜水壓強度測試及疲勞測試,根據(jù)各組的泄露壓力和極限轉(zhuǎn)數(shù)來評價其修復(fù)效果。結(jié)果:A~E組的泄露壓力分別為(0.76±0.11)MPa、(1.66±0.11)MPa、(1.84±0.15)MPa、(1.88±0.13)MPa、(2.16±0.24)MPa。E組泄露壓力明顯高于其他組,差異有顯著性(P0.05)。在疲勞測試中,從A~E組各組最后的極限轉(zhuǎn)數(shù)分別為(4.42±0.59)萬次、(8.06±0.75)萬次、(8.44±1.01)萬次、(9.76±0.23)萬次、(9.88±0.21)萬次。E組與D組比較差異無顯著性(P0.05),與其他各組比較差異均有統(tǒng)計學(xué)意義(P0.05)。結(jié)論:應(yīng)用粘合劑+改良荷包縫合法處理纖維環(huán)切口,具有較高的生物力學(xué)強度。
[Abstract]:Objective: to study the biomechanical strength of different repair methods of lumbar disc fiber ring incision by biomechanical test. Methods: 50 spinal functional segments were made from calf lumbar vertebrae, each of which made a 10mm transverse incision on the annulus fibrosus. According to different repair methods, they were randomly divided into 5 groups: adhesive group (group A, DermaBond adhesive incision was selected), simple suture group (group B, conventional U-shaped suture method was used to treat incision), MPSS group), group C, simple suture group (group B), simple suture group (group B). The incision was treated by modified bag seam method, the adhesive simple suture group (group D) and adhesive MPSS group (group E) were used, and then the hydrostatic strength and fatigue test of fiber ring were carried out. The repair effect was evaluated according to the leakage pressure and limit rotation of each group. Results: the leakage pressure of group A 鈮，

本文編號：2484101