Related Experiment Video
Updated: Aug 2, 2026
05:50
A Mobile Outside-in Technique of Transforaminal Lumbar Endoscopy for Lumbar Disc Herniations
Published on: August 7, 2018
12.4K
Study of Clinical Variables Affecting Long Term Outcome after Microdisectomy for Lumbar Disc Herniation
D Shrestha1, R Shrestha1, D Dhoju1
1Department of Orthopedic and Truamatology Dhulikhel Hospital, Kathmandu University Hospital School of Medical Sciences Dhulikhel, Kavre, Nepal.
Kathmandu University Medical Journal (KUMJ)
|July 18, 2016
Summary
Predictors for lumbar disc herniation surgery outcomes vary in Nepal. Factors like age, gender, lifestyle, and education significantly influence patient recovery and disability scores post-microdiscectomy.
Area of Science:
- Neurosurgery
- Orthopedics
- Public Health
Background:
- Lumbar disc herniation outcomes are multifactorial, influenced by clinical, socioeconomic, and psychological elements.
- In Nepal, the absence of comprehensive insurance and sick leave necessitates understanding unique predictors for surgical outcomes.
- Previous research highlights diverse factors affecting recovery, but specific data from the Nepalese population is limited.
Purpose of the Study:
- To identify and evaluate clinical variables impacting surgical outcomes in Nepalese patients with lumbar disc herniation.
- To assess the correlation between various patient characteristics and post-operative results using Oswestry Disability Index (ODI) and Mcnab classification.
Main Methods:
- Retrospective evaluation of 63 patients (43 male, 20 female) who underwent microdiscectomy for lumbar disc herniation.
- Data collected included pre- and post-operative Oswestry Disability Index (ODI) scores and Mcnab outcome classifications.
- Analysis focused on clinical variables such as age, gender, lifestyle (alcohol, smoking), education, occupation, symptom presentation, and disc level (L4-L5).
Main Results:
- A significant reduction in mean ODI score was observed from pre-surgery (37.87) to final follow-up (7.78) (p=0.00).
- Success rates were high: 90.47% (ODI change ≥10), 93.65% (ODI <40%), and 85.71% (Mcnab excellent/good).
- Factors associated with better ODI scores included younger age, male gender, non-alcoholic status, lower education, numbness as primary symptom, and L4-L5 disc herniation.
Conclusions:
- Age, gender, smoking/drinking habits, education level, occupation, and MRI disc type are crucial variables influencing post-lumbar disc herniation surgery outcomes.
- These factors are important for interpreting ODI scores and predicting Mcnab outcomes in the Nepalese context.
- Understanding these predictors can help tailor patient management and expectations in healthcare systems lacking extensive social support.
Related Concept Videos
01:29Herniated Intervertebral Disc l: Introduction
Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
01:27Degenerative Disc Disease I: Introduction
Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
01:23Degenerative Disc Disease ll: Pathophysiology
The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...