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"Reverse Bohlman" technique for the treatment of high grade spondylolisthesis in an adult population
Angel E Macagno1, Saqib Hasan2, Cyrus M Jalai2
1NY Spine Institute/NYU Medical Center Hospital for Joint Diseases, New York, NY, United States.
Background/Aims:
Surgical techniques for effective high-grade spondylolisthesis (HGS) remain controversial. This study aims to evaluate radiographic/clinical outcomes in HGS patients treated using modified "Reverse Bohlman" (RB) technique.
Methods:
Review of consecutive HGS patients undergoing RB at a single university-center from 2006 to 2013. Clinical, surgical, radiographic parameters collected.
Results:
Six patients identified: five with L5-S1 HGS with L4-L5 instability and one had an L4-5 isthmic spondylolisthesis and grade 1 L5-S1 isthmic spondylolisthesis. Two interbody graft failures and one L5-S1 pseudoarthrosis. Postoperative improvement of anterolisthesis (62.3% vs. 49.6%, p = 0.003), slip angle (10 vs. 5°, p = 0.005), and lumbar lordosis (49 vs. 57.5°, p = 0.049).
Conclusions:
RB technique for HGS recommended when addressing adjacent level instability/slip.
