Oblique lumbar interbody fusion for adjacent segment disease after posterior lumbar fusion: A case-controlled study

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Abstract

Background: This study assessed clinical and radiographic outcomes of oblique lumbar interbody fusion (OLIF) in comparison with posterior reoperation for adjacent segment disease (ASD). Methods: A total of 26 patients with symptomatic ASD after lumbar fusion were included in this retrospective case-controlled study conducted from January 2013 to December 2018. Twelve patients underwent single-segment OLIF with or without posterior instrumentation (OLIF group), whereas 14 patients underwent posterior reoperation (posterior approach group). The clinical outcomes included operative time, blood loss, hospital stay, Visual Analogue Scale (VAS), Oswestry Disability Index (ODI), and complications. Preoperative and postoperative radiographic outcomes were compared. Results: The operative time (60.6 ± 16.1 min vs. 150.9 ± 28.5 min, respectively; P < 0.05) and the blood loss in the OLIF group 89.2 ± 49.0 ml vs. 340.7 ± 130.2 ml, respectively; P < 0.05) were significantly lower than those in the posterior group. The hospital stay was lower in the OLIF group than in the posterior approach group (6.6 ± 1.3 days vs. 9.5 ± 2.5 days, respectively; P < 0.05). In the posterior approach group, 6 of 14 patients (42.8%) had issue with dural tear, while none in the OLIF group had such issue (P < 0.05). The ODI score (13.2 ± 4.2 vs. 19.2 ± 7.2, respectively; P = 0.014) and the VAS back pain score were lower in the OLIF group postoperatively and at last follow-up. In the OLIF group, the radiographic outcomes were significantly improved postoperatively. Conclusions: Due to our results and early experiences, we proposed that OLIF was safe and effective for ASD. Compared with posterior reoperation, OLIF results in shorter operative time and hospital stay, lesser blood loss, and lower risk of dural injury.

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Jin, C., Xie, M., He, L., Xu, W., Han, W., Liang, W., & Qian, Y. (2019). Oblique lumbar interbody fusion for adjacent segment disease after posterior lumbar fusion: A case-controlled study. Journal of Orthopaedic Surgery and Research, 14(1). https://doi.org/10.1186/s13018-019-1276-9

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