Functional outcome of transforaminal lumbar interbody fusion for lytic and degenerative spondylolisthesis

Abstract

Introduction: Spondylolisthesis is defined as the forward displacement of one vertebra over the vertebra below. It is often accompanied by spinal canal stenosis and compression, which is the cause of all the symptoms. Aim: The aim of this prospective study is to analyze the Functional outcome of Transforaminal Lumbar Interbody Fusion in Spondylolisthesis. Methods: 20 patients of Isthmic spondylolisthesis grade I-III, patients who don’t respond to conservative treatment (6 months), Degenerative spondylolisthesis grade I-II, patients who don’t respond to conservative treatment (6 months), Traumatic spondylolisthesis were included in this study. Results: The most common level involved is L4-L5 in 55% of cases and L5-S1 in 40% of cases. The L4-L5 Level is most commonly affected in Degenerative type (80%). The L5-S1 level was most commonly affected in Lytic type (60%). The mean preoperative Visual analog score for Back pain was 10 which improved to 2(1-4) at final follow up implying better pain score postoperatively. The mean preoperative Visual analog score for Leg pain was 8 which improved to 1 (1-5) at final follow up implying better pain score postoperatively. The mean preoperative Oswestry Disability Index (ODI) Score was 64% (range from 56% -74%) which improved to 20% at final follow up which indicates improvement in daily activities of the patient. Conclusion: Transforaminal Lumbar Interbody Fusion is a safe and effective surgical procedure for the treatment of lytic and degenerative spondylolisthesis.