Research Article
Volume 12 Issue 8 - 2021
Functional Outcomes After Lumbar Fusion for Degenerative Spine Using Oswestry Disability Index. A Retrospective Observational Study
Saddam Mazar, Shahzaib Riaz Baloch*, Shahbaz Khan, Imtiaz A Hashmi and Mohammad Sohail Rafi
Department of Orthopedics and Spine Surgery, Dr. Ziauddin University Hospital, Karachi, Pakistan
*Corresponding Author: Shahzaib Riaz Baloch, Department of Orthopedics and Spine Surgery, Dr. Ziauddin University Hospital, Karachi, Pakistan.
Received: May 28, 2021; Published: July 27, 2021




Abstract

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.

Results: Total of 673 patients underwent posterior spinal instrumentation and fusion. No statistically significant results were found between other variables regarding patient outcomes. Higher ODI scores were found in desk job occupations. Significant improvements were observed in ODI scores of pre-op and 3 months post-op, 6 months to 12 months and 12 months to 24 months. VAS showed a significant improvement, P < 0.001, from a preoperative mean of 5.5 to a mean score of 1.7 at 6months postoperatively. Majority of patients 267 (44.7%) saw a major improvement from Severe Disability to Moderate disability, with a significant association was found between number of levels and ODI score (p < 0.05). Significant improvement found at 6month follow up (p < 0.05) with a 29.4% (n = 176) decrease in the frequency of severe disability and an improvement towards minimal disability of 45.4% (n = 271), in patients with Spondylolisthesis.

Conclusion: The Oswestry disability index is an excellent tool in measuring the patient’s outcomes of the level of satisfaction after undergoing a lumbar spinal decompressive laminectomy for spinal stenosis. Older age patients and those with long segment fusion fared far less than the patients with short segment fusions.

Keywords: Spinal Decompressive Laminectomy; Oswestry Disability Index; Spinal Stenosis; Pedicle Instrumentation; Fusion Levels; Transverse Processes

References

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Citation: Shahzaib Riaz Baloch., et al. “Functional Outcomes After Lumbar Fusion for Degenerative Spine Using Oswestry Disability Index. A Retrospective Observational Study”. EC Orthopaedics 12.8 (2021): 07-13.

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