COMPLICATIONS IN THREE LUMBAR ARTHRODESIS TECHNIQUES: TLIF, MITLIF, PLIF

ABSTRACT Objective: To determine that minimally invasive transforaminal lumbar fusion has fewer complications of chronic lumbar instability compared with traditional open techniques. Methods: Retrospective, observational study of 132 patients with grade I and II lumbar spondylolisthesis with advanced disc degeneration. Forty-five patients operated by minimally invasive transforaminal lumbar interbody fusion (MITLIF), 45 patients operated by posterior lumbar interbody fusion (PLIF) and 42 patients operated by open transforaminal lumbar interbody fusion (TLIF). Results: Four patients had incidental durotomy, two in the TLIF group and two in the PLIF group. There were no cases of incidental durotomy in the minimally invasive transforaminal access group. No patient in the study presented an inadequate screw position, the lowest mean bleeding occurred in the group of minimally invasive instrumentation of one and two levels. There were 6.6% of infections for PLIF group and none in the other two groups. Conclusions: Arthrodesis techniques are not free of complications, however, the frequency is lower with minimally invasive techniques. Nonetheless, it requires training and does not dispense the need for a learning curve for the spine surgeon compared to open lumbar fusion techniques.