Distinct fusion intersegmental parameters regarding local sagittal balance provide similar clinical outcomes: a comparative study of minimally invasive versus open transforaminal lumbar interbody fusion

Abstract

Background: Most contemporary studies suggested that intersegmental parameters including disc height and local lordosis contribute to the sagittal balance of fused lumbar. Although similar clinical outcomes following MIS-and Open-TLIF were reported essentially at the early postoperative time, the comparison of local balance variables after these two different techniques was lack. The radiological differences maybe not relevant to the postoperative efficacy at an earlier post-operation stage. But during the long-term follow-up, the complications with regards to the sagittal imbalance might occur due to the distinct biomechanical properties of fusion level after MIS-and Open-TLIF. Methods: The patients who underwent a single-level MIS-and Open-TLIF were reviewed retrospectively. The anterior disc height (ADH), posterior disc height (PDH), and segmental lordosis (SL) of the fusion segment were measured using recognition technical fluoroscopy. The mean disc height (MDH) was calculated by (ADH + PDH)/2. The relative DH was normalized by the anterior height of the upper vertebrae. The body mass index (BMI), the pain score of low back and leg visual analogue scale (VAS), Oswestry disability index (ODI), estimated blood loss, and hospital stay length was collected.

Clinical efficacy and complications of MIS-TLIF and TLIF in the treatment of upper lumbar disc herniation: a comparative study

“…With the development and advancement of surgical techniques, the applications of minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) have expanded. Several clinical studies have confirmed that MIS-TLIF achieves comparable results to traditional intervertebral decompression and fusion in terms of postoperative clinical efficacy but has the advantages of less bleeding and less soft tissue damage [ 5 , 6 ]. However, there are limited reports of studies related to MIS-TLIF for the treatment of ULDH.…”