Objective: The purpose of this research study was to assess radiological as well as clinical outcome of TLIF.

Methodology: This is a retrospective research study which covered a time span from May 2018 to June 2021. In this research study, we included the patients who were suffering from chronic pain in their lower back because of degenerative disc disease (DDD), recurring herniation of lumber disc and degenerative spondylolisthesis. We performed a retrospective review of the record files to evaluate the pre-operative as well as post-operative outcomes. We used the fusion and Oswestry Disability Index (ODI) on already set standard for the evaluation of the outcomes.

Results: Total twenty-five patients diagnosed with DDD in which 64.0% (n: 16) patients were male and 36.0% (n: 9) patients were females. The average age of these patients was 40.90 years. Four patients were present with recurring disc herniation and twelve patients were suffering from degenerative spondylolisthesis. ODI and VAS (Visual Analogue Scale) for pain displayed the noteworthy improvement from pre-operatively 42.30 and 7.10 to 17.50 and 2.50 post-operatively. The observation of fusion was 92%.

Conclusion: There are very effective radiological and clinical results of TLIF in the treatment of chronic back pain in lower part.

Keywords: TLIF, radiological outcome, clinical outcome, Back pain.