Display options
Cite
Khan MB, Bashir MU, Kumar R, et al. Enduring improvement in Oswestry Disability Index outcomes following lumbar microscopic interlaminar decompression: An appraisal of prospectively collected patient outcomes. J Craniovertebr Junction Spine. 2015;6(4):195-9doi: 10.4103/0974-8237.167881.
Khan, M. B., Bashir, M. U., Kumar, R., & Enam, S. A. (2015). Enduring improvement in Oswestry Disability Index outcomes following lumbar microscopic interlaminar decompression: An appraisal of prospectively collected patient outcomes. Journal of craniovertebral junction & spine, 6(4), 195-9. https://doi.org/10.4103/0974-8237.167881
Khan, Muhammad Babar, et al. "Enduring improvement in Oswestry Disability Index outcomes following lumbar microscopic interlaminar decompression: An appraisal of prospectively collected patient outcomes." Journal of craniovertebral junction & spine vol. 6,4 (2015): 195-9. doi: https://doi.org/10.4103/0974-8237.167881
Khan MB, Bashir MU, Kumar R, Enam SA. Enduring improvement in Oswestry Disability Index outcomes following lumbar microscopic interlaminar decompression: An appraisal of prospectively collected patient outcomes. J Craniovertebr Junction Spine. 2015 Oct-Dec;6(4):195-9. doi: 10.4103/0974-8237.167881. PMID: 26692698; PMCID: PMC4660497.
Copy Download .nbib Format: NLM
Share it on

J Craniovertebr Junction Spine. 2015 Oct-Dec;6(4):195-9. doi: 10.4103/0974-8237.167881.

Enduring improvement in Oswestry Disability Index outcomes following lumbar microscopic interlaminar decompression: An appraisal of prospectively collected patient outcomes.

Journal of craniovertebral junction & spine

Muhammad Babar Khan, Muhammad Umair Bashir, Rajesh Kumar, Syed Ather Enam

Affiliations

  1. Department of Surgery, Section of Neurosurgery, Aga Khan University Hospital, Karachi, Sindh, Pakistan.

PMID: 26692698 PMCID: PMC4660497 DOI: 10.4103/0974-8237.167881

Abstract

OBJECTIVES: Our present study aims to assess the short and long-term postoperative outcome of microscopic interlaminar decompression from a neurosurgical center in a developing country and also aims to further determine any predictors of functional outcome.

MATERIALS AND METHODS: All patients with moderate to severe symptomatic stenosis undergoing elective posterior lumbar spinal decompression were prospectively enrolled in a database. Preoperative, 2 weeks and 2 years postoperative Oswestry Disability Index (ODI) scores were determined for all patients. These scores were retrospectively compared using repeated measures analysis of variance. Further, linear regression modelling was applied to determine the effect of preoperative ODI, body mass index, age, prior physiotherapy, duration of symptoms, and single or multiple level decompression on the change in ODI at 2 weeks and 2 years follow-up respectively.

RESULTS: A total of 60 consecutive patients (40 males, 20 females) were included for statistical analysis. The percentage of patients with a minimum clinically important difference (MCID), using an ODI threshold value of 10, was 86.7% (n = 52) at the 2 weeks postoperative follow-up. At the 2 years follow-up assessment, 3.3% (n = 2) patients who had earlier not achieved MCID did so, 78.3% (n = 47) of patients were found to have a change in ODI score of <10 or no change, while 18.3% (n = 11) reported a deterioration in their ODI scores. The preoperative ODI score was an independent predictor of change in ODI score at 2 weeks and 2 years respectively (P < 0.0005). The duration of symptoms prior to surgery was found to predict the change in ODI at 2 years follow-up (P = 0.04).

CONCLUSION: The evidence regarding the long-term and short-term efficacy of microscopic interlaminar decompression in symptomatic lumbar stenosis is overwhelming. Preoperative ODI scores and duration of symptoms prior to surgery can predict postoperative outcomes.

Keywords: Functional outcome; Oswestry Disability Index; interlaminar decompression; lumbar spinal stenosis; microscope; minimally invasive surgery; spinal decompression

References

  1. Spine (Phila Pa 1976). 1995 May 15;20(10):1155-60 - PubMed
  2. Acta Neurochir (Wien). 1998;140(7):637-41 - PubMed
  3. Neurosurg Rev. 2001 Jul;24(2-3):80-2 - PubMed
  4. J Neurosurg. 2002 Jan;96(1 Suppl):122-6 - PubMed
  5. J Bone Joint Surg Br. 1992 Nov;74(6):862-9 - PubMed
  6. Eur Spine J. 2007 Feb;16(2):199-206 - PubMed
  7. Spine (Phila Pa 1976). 2005 Jun 15;30(12):1441-5; discussion 1446-7 - PubMed
  8. Ann Intern Med. 1985 Aug;103(2):271-5 - PubMed
  9. BMC Surg. 2010 Nov 22;10:34 - PubMed
  10. Neurosurgery. 1982 Oct;11(4):546-9 - PubMed
  11. Acta Neurochir (Wien). 1997;139(5):397-403 - PubMed
  12. Acta Orthop Scand Suppl. 1993;251:67-8 - PubMed
  13. Acta Neurochir (Wien). 1997;139(5):392-6 - PubMed
  14. Semin Neurol. 2002 Jun;22(2):157-66 - PubMed
  15. Spine (Phila Pa 1976). 1997 Dec 15;22(24):2932-7 - PubMed
  16. Spine (Phila Pa 1976). 1995 Feb 15;20(4):449-53 - PubMed
  17. Spine (Phila Pa 1976). 1991 Jun;16(6):615-9 - PubMed
  18. Lyon Chir. 1954 Jan;49(1):92-5 - PubMed
  19. Acta Orthop Scand Suppl. 1993;251:78-80 - PubMed
  20. Acta Neurochir (Wien). 1994;131(1-2):130-6 - PubMed

Publication Types