Objective To investigate the curative effect of Quadrant channel transforaminal lumbar interbody fusion(TLIF) in the treatment of recurrent lumbar disc herniation(RLDH).Methods Seventy-six cases patients with RLDH were divided into traditional TLIF group(36 cases) and Quadrant group(40 cases) by the different operation modes.The operation,VAS scores and ODI scores were compared between the two groups.Results Operation time((98.2±18.1) min vs.(118.5±27.2) min,t=3.79,P<0.05),incision length((2.7±0.6) cm vs.(5.5±1.0) cm,t=14.97,P<0.05),intraoperative blood loss((90.7±20.1) ml vs.(170.3±33.5) ml,t=12.71,P<0.05) and intraoperative drainage((43.8±12.4) ml vs.(117.1±28.9) ml,t=14.62,P<0.05) in Quadrant group were less than that in traditional TLIF group.The ambulation time((2.8±0.6) d vs.(6.8±1.1) d,t=19.95.P<0.05) and hospitalization time((7.1±2.0) d vs.(14.2±2.7) d,t=13.11,P<0.05) of Quadrant group were shorter than those of TLIF group.VAS scores in both groups were significantly decreased.VAS in Quadrant group was significantly lower than that in traditional TLIF group from 3 d to 6 months after operation((4.4±1.0,3.9±1.2,3.4±0.8,1.9±0.6,1.3±0.4) points vs.(5.0±1.4,4.5±1.1,4.1±0.9,3.6±0.7,2.5±0.6) points,P<0.05).ODI scores in both groups were significantly decreased.ODI in Quadrant group was significantly lower than that in traditional TLIF group from 1 d to 6 months after operation((36.7±7.1,33.4±6.2,30.7±4.1,27.8±5.3,24.5±5.4,18.4±4.7) points vs.(39.8±6.0,36.8±5.8,33.5±6.6,31.3±5.1,28.9±6.6,22.3±5.2) points,P<0.05).Conclusion The treatment of RLDH by Quadrant channel TLIF has obvious curative effect,short operation time,less trauma,faster recovery and shorter hospital stay.

Objective To observe the effect of drug combinations on the blood flow after reduction of the testicular torsion in rabbits.Methods From October 2014 to June 2015,36 male rabbits (weighing 1.8-2.4 kg,10-14 months of age) were randomly divided into experimental group and control group,18 in each group.Produced by surgical testicular torsion model (720° counterclockwise rotation of the left side testicle),every rabbit was accepted surgery reset after 9 hours and found all twisted testicles were dark.After fomentation with warm salt water,all the testicles were observed no significant improvement in colors,and no fresh blood flow after opening tunica albuginea,then all the testicles were retained and fixed.Low molecular dextran(5 ml/kg,ear marginal vein injection,1/d),papaverine(1.5 mg/kg,intramuscular,3/d) and low molecular weight heparin sodium (200 IU/kg,subcutaneous,l/d) were applied to promote testicular revascularization for 5 days in experimental group,and penicillin (40 000 U/kg,intramuscular,1/d) for 7 days.Control group was only given penicillin (40 000 U/kg,intramuscular,1/d) to prevent wound infection.Then Color Doppler ultrasound was used to observe the testicular blood flow siganals that were divided into 0,1,2,3 classes.Class 2 and class 3 could be considered as testicular survival.After each scrotum was opened,according to color,texture of testicle and whether the fresh blood flowing out when tunica albuginea was opened,to determine whether the testicle was alive.The testicle was ruddy,flexible,and fresh blood was observed,which could prove testicular survival.Results In experimental group,the testicular blood flow siganals:0 class 4 cases,1 class 3 cases,2 class 4 cases,3 class 7 cases.In control group,the testicular blood flow siganals:0 class 9 cases,1 class 2 cases,2 class 4 cases,3 class 3 cases.Surgical exploration found 11 cases of testicular survival in experimental group and 7 cases in control group,which was significantly difference (P ＜ 0.05).Conclusions The combined application of low molecular dextran,papaverine,low molecular weight heparin sodium can promote the recovery of testicular blood after reduction of testicular torsion,and improve testicular survival rate.