Functional Outcomes After Lumbar Fusion for Degenerative Spine Using Oswestry Disability Index. A Retrospective Observational Study

Methods: Retrospective cohort data of 673 (out of which 597 were included in the data) patients was taken, with a diagnosis of degenerative spinal stenosis and had undergone spinal decompressive laminectomy with pedicle screw instrumentation. The data was taken from February 2007 till December 2017 of surgeries which took place in Dr. Ziauddin University hospital Karachi. The follow up of the patients was for up to 2 years. All patients were judged on the outcomes of satisfaction by using the Oswestry disability index (ODI) and those who had already filled the ODI pamphlet preoperatively. The data included of patients who had already filled the ODI Performa till 2 years postop for the assessment of patient’s disability. Factors evaluated and variables included were age, gender, BMI, comorbidities, smoking, spondylolisthesis, scoliosis, level of fusion and number of fused levels, S1 involved in fusion.

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