Management of Lumbar Spondylosis
Begin with conservative treatment including physical therapy and NSAIDs for at least 6 weeks; if symptoms remain refractory and imaging confirms 1- or 2-level degenerative disc disease without stenosis or spondylolisthesis, proceed with either lumbar fusion or a comprehensive rehabilitation program incorporating cognitive behavioral therapy. 1
Initial Conservative Management
Start all patients with lumbar spondylosis on a trial of nonoperative management:
- NSAIDs or COX-2 inhibitors for pain control 2
- Physical therapy as first-line treatment
- Prostaglandin E1 preparations for neurogenic symptoms
- Epidural or transforaminal steroid injections for radicular leg pain or claudication 2
- Muscle relaxants and judicious narcotic use when needed 3
The majority of patients respond adequately to this approach and surgery should be reserved only for those who fail conservative measures 2, 4.
When Conservative Treatment Fails
After 6 weeks of failed conservative management, reassess the patient's specific pathology:
For Isolated Spondylosis (No Stenosis or Spondylolisthesis)
Two equivalent treatment options exist 1:
Lumbar fusion (Grade B recommendation) - Provides 33% reduction in back pain versus 7% with traditional physical therapy, with 25% improvement in Oswestry Disability Index versus 6% in controls 1
Comprehensive rehabilitation with cognitive behavioral therapy (Grade B recommendation) - Equally effective as fusion in multiple Level II studies 1
The evidence shows these approaches produce equivalent outcomes, so patient preference, surgical candidacy, and functional goals should guide the decision. However, limit fusion to 1- or 2-level disease only 1.
For Stenosis Without Spondylolisthesis
Perform decompression alone without fusion (Grade B/C recommendations) 5:
- Surgical decompression is recommended for symptomatic neurogenic claudication when patients elect surgery
- Fusion does not improve outcomes in isolated stenosis without deformity or instability and is therefore not recommended 5
- This is a critical distinction: adding fusion increases costs and complications without clinical benefit
Important Caveats
Beware of the "comprehensive medical management trap": Research shows that continued medical management beyond 6 weeks in surgically eligible patients provides minimal value - it fails to achieve minimum clinically important differences in pain, disability, or quality of life while accumulating costs of $6,600-$7,700 over 2 years 3. Don't let patients languish in ineffective conservative care indefinitely.
The imaging-symptom mismatch problem: Degenerative changes on MRI are often nonspecific and may not correlate with the pain source 1. This makes accurate diagnosis challenging and contributes to variable surgical outcomes.
Age considerations: Most evidence applies to patients aged 18-65 years 1. Elderly patients require individualized risk-benefit assessment given higher surgical risks.
Surgical Technique Considerations
When fusion is indicated:
- Instrumented fusion produces higher fusion rates than non-instrumented approaches, though clinical outcome improvements are marginal and complication rates may be higher 6
- Minimally invasive TLIF shows promise for better functional outcomes and lower complications compared to traditional approaches 7
- No clear superiority exists between anterior, posterior, or circumferential fusion approaches 6