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lumbar disc disease
Common cause of chronic or recurrent low back pain & leg pain. Most common locations L4-L5 & L5-S1. Severe disc disease can result in herniation. Lumbar disc disease is generally unilateral.
Etiology:
- increased BMI increases risk [3]
Genetics:
- defects in CILP gene may be a cause of susceptibility to lumbar disc disease
- susceptibility to intervertebral disc disease & lumbar disk herniation may be associated with defects in COL9A2, COL9A3
Clinical manifestations:
1) ruptured or herniated disc
- pain
- abnormal posture
- limitation of spine movement
- radicular pain (sciatica)
2) no disc herniation
a) back pain
- frequent episodes of severe, but brief pain
- episodes precipitated by sudden movements of spine
b) leg pain (sciatica)
c) no signs of nerve root involvement
3) lumbar spinal stenosis
- pain with standing & walking, relieved by sitting, bending foward
- pain takes several minutes to resolve when induced by walking
- pain is relieved by spinal flexion
- pain is aggravated by extension of the spine
- wide-based gait
- neuromuscular deficits of the lower extremity
- weakness of L4-S1 innervated muscles
- hallux extensors, hip abductors, hip extensors
Differential diagnosis:
- sacral fracture, especially sacral insufficiency fracture
- lumbar spinal stenosis (see Clinical manifestations above)
- sciatica
Management:
1) Surgery:
- indications for disc surgery
- progressive motor weakness from nerve root injury
- progressive impairment demonstrated by EMG & nerve conduction studies
- abnormal bowel or bladder function or other signs of spinal cord disease
- incapacitating nerve root pain despite conservative treatment for >= 4 weeks
2) glucocorticoid injection
- benefit at 1 month in 55% vs 33% of controls
- at 3 months increases in pain reported
- at 12 months, no difference in groups [5]
Related
cauda equina syndrome
herniated disc
low back pain (LBP)
General
disc disease
Database Correlations
OMIM 603932
References
- Harrison's Principles of Internal Medicine, 14th ed.
Fauci et al (eds), McGraw-Hill Inc. NY, 1998, pg 77
- UCLA Intensive Course in Geriatric Medicine & Board Review,
Marina Del Ray, CA, Sept 12-15, 2001
- Samartzis D et al.
The association of lumbar intervertebral disc degeneration
on magnetic resonance imaging with body mass index in
overweight and obese adults: A population-based study.
Arthritis Rheum 2012 May; 64:1488
PMID: 22287295
- Kabir SM1, Gupta SR, Casey AT.
Lumbar interspinous spacers: a systematic review of clinical
and biomechanical evidence.
Spine (Phila Pa 1976). 2010 Dec 1;35(25):E1499-506
PMID: 21102279
- Nguyen C, Boutron I, Baron G et al
Intradiscal Glucocorticoid Injection for Patients With Chronic
Low Back Pain Associated With Active Discopathy: A Randomized
Trial.
Ann Intern Med. 2017. March 21.
PMID: 28319997
http://annals.org/aim/article/2612231/intradiscal-glucocorticoid-injection-patients-chronic-low-back-pain-associated-active
- Kennedy DJ, Schneider BJ
The Challenges of Research on Interventions for Low Back Pain.
Trial.
Ann Intern Med. 2017. March 21.
PMID: 28319999
http://annals.org/aim/article/2612725/challenges-research-interventions-low-back-pain