INTRODUCTION: Interbody fusion is the gold standard treatment for the management of numerous diseases of the spine. Minimally invasive techniques may be more beneficial than conventional techniques. The main goal of this study was to report the one-year postoperative results of a series of posterior lumbar interbody fusions by a minimally invasive technique in relation to improvement in functional outcome, interbody fusion and morbidity. MATERIALS AND METHODS: Between January 2012 and May 2013, 182 @entity1 treated by minimally invasive posterior @entity2649 ( @entity2649 ) were included in this prospective multicenter study. Clinical assessment was based on a comparison of the preoperative and one-year postoperative Oswestry (ODI), SF-12 and Quebec Scores and the Visual Analog Scale (VAS). Surgical and postoperative follow-up data were evaluated. Radiological assessment was based preoperative and one-year postoperative full spine teleradiographs. Interbody fusion at one-year was systematically evaluated by CT scan. RESULTS: One hundred and eighty-two @entity1 were included, mean age 58.9 years old. Surgery lasted a mean 101minutes, mean preoperative bleeding was 143mL, and  mean radiation exposure was 247.4  cGy/cm(2). The rate of @entity260 was 7.7%. The ODI, the Quebec Score, the SF-12 and the VAS were all significantly improved at one-year (P<0.0001). The rate of fusion was 72.6% at the final follow-up. There was no significant difference in functional outcome between @entity1 with and without fusion. DISCUSSION: The one-year postoperative radiological results and functional outcome of minimally invasive posterior lumbar fusion are satisfactory. The benefits of this minimally invasive approach are mainly found in the first 6 postoperative months. Successful radiological interbody fusion was not correlated to functional outcome at the final follow-up. LEVEL OF EVIDENCE: IV.

Minimally invasive posterior XXXX : One-year postoperative morbidity, clinical and radiological results of a prospective multicenter study of 182 cases.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity2649 :: ('MESH:C563613', 'Disease') :: ['transforaminal lumbar interbody fusion', 'TLIF'] @entity260 :: ('MESH:D011183', 'Disease') :: ['postoperative complications']
@entity2649 :: (MESH:C563613,Disease) :: ['transforaminal lumbar interbody fusion']
