Curative effect of Quadrant channel transforaminal lumbar interbody fusion in the treatment of recurrent lumbar disc herniation

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. Key words: Quadrant channel; Transforaminal lumbar interbody fusion; Recurrent lumbar disc herniation