Single space transforaminal lumbar interbody fusion in spondylolisthesis: initial experience of 30 cases

Spondylolisthesis in adults is characterized by the loss of disc height across the affected segment with sagital translation. The goal of stabilizing the spine is accomplished by fusion. Transforaminal approach for lumbar interbody fusion is a very good approach and reduces the complications associated with traditional posterior approach. It has been reported to be safe and effective in the treatment of spondylolisthesis. It has done to assess the functional outcome of Transforaminal Lumbar Interbody Fusion (TLIF) in spondylolisthesis. This prospective interventional study was performed from July 2008 to June 2011 included 30 patients (male 07, female 23), within a age range of 30-59 years. Nineteen cases were lytic, 08 cases were degenerative, 02 were post-traumatic and 01 dysplastic variety of spondylolisthesis. Follow up ranged from 12 to 24 months and outcome assessed by VAS and ODI regarding pain and disability. Achievement of fusion and complications were documented accordingly. Statistical analysis was done by unpaired t-test and chi-squared test in appropriate instances. We included twenty One (70.00%) patient had Grade-II Spondylolisthesis and L4 over L5 had been the commonest level (53.33%) involved. Pain and disability improved significantly and 22 (73.33%) patients returned to their previous level of activity. One (03.33%) patient developed superficial wound infection and 01 (03.33%) had persistent low back pain. All patients had neurological improvement. We concluded that Transforaminal Lumbar Interbody Fusion is an effective alternative surgical procedure for the treatment of spondylolisthesis. Overall outcome is satisfactory in 93.33% cases.