Management of Cervicalgia with Degenerative Disc Disease at C5-6 and C6-7
Initial conservative management with physical therapy, activity modification, and cervical immobilization is the appropriate first-line approach, as 75-90% of patients achieve symptomatic improvement without surgery. 1
Initial Conservative Treatment (6-12 Weeks Minimum)
Non-operative management should be the initial approach for all patients without progressive neurological deficits or myelopathic features. 1 This includes:
- Physical therapy focusing on strengthening neck muscles, improving posture, and stabilization exercises 2
- Activity modification with restriction of aggravating movements 3
- Cervical collar immobilization for symptom control during acute phases 4
- Anti-inflammatory medications for pain management 1
- Longitudinal cervical traction may provide additional benefit 5
The evidence strongly supports this conservative approach, with success rates of 75-90% for cervical radiculopathy 1 and improvement in 30-50% of patients with mild myelopathy 4.
Functional Outcome Assessment
Use validated outcome measures to objectively track treatment response:
- Neck Disability Index (NDI) for assessing functional limitations 6
- Patient-Specific Functional Scale (PSFS) for monitoring nonoperative therapy response 6
- North American Spine Society (NASS) scale as an alternative functional assessment tool 6
These measures are critical because physician-expected outcomes often disconnect from actual patient-reported functional outcomes regarding pain, work activities, and social/recreational function 6.
Indications for Advanced Imaging
Obtain MRI of the cervical spine if:
- Symptoms persist beyond 6 weeks of conservative treatment 1
- Progressive neurological deficits develop (motor weakness, sensory loss, reflex changes) 1
- Clinical examination suggests myelopathy (gait disturbance, upper motor neuron signs) 1
MRI is the preferred initial imaging modality for suspected cervical radiculopathy, while CT provides superior visualization of osseous structures 1, 2. Critical pitfall: MRI findings must always be correlated with clinical symptoms, as false positives and false negatives are common 1.
Surgical Indications
Surgery should be considered only after documented failure of at least 6 weeks of structured conservative therapy AND presence of:
- Persistent radicular pain with documented motor weakness, dermatomal sensory loss, or reflex changes that correlate with imaging findings 1
- Progressive neurological deficits despite conservative management 1
- Significant functional impairment affecting quality of life, activities, or sleep 1
- Radiographic confirmation of moderate-to-severe foraminal stenosis or canal stenosis on MRI 1
Surgical Options When Indicated:
Anterior cervical decompression and fusion (ACDF) provides:
- 80-90% success rate for arm pain relief 1, 2
- More rapid symptom relief (within 3-4 months) compared to continued conservative treatment 1
- 90.9% functional improvement in appropriately selected patients 1
Posterior laminoforaminotomy is appropriate for:
- Soft lateral disc displacement 1
- Cervical spondylosis with lateral recess narrowing 1
- Patients preferring motion preservation without anterior approach risks 1
- Success rates of 78-93% depending on patient factors 1
Long-Term Outcomes
At 12 months, physical therapy achieves comparable clinical improvements to surgical interventions, though surgery provides more rapid relief within 3-4 months. 1 This is critical information for shared decision-making with patients who have non-progressive symptoms.
Monitor for recurrent symptoms, which occur in up to 30% of patients after anterior cervical foraminotomy. 1, 2
Common Pitfalls to Avoid
- Premature surgical intervention: The 75-90% success rate with conservative management mandates an adequate trial before surgery 1
- Operating without clinical correlation: Anatomic findings on imaging must match the patient's clinical presentation 1
- Inadequate documentation: Formal documentation of conservative therapy duration, frequency, and response is required to establish medical necessity for surgery 1
- Ignoring natural history: For mild myelopathy from soft disc herniation, 59% show spontaneous regression of herniated mass with conservative treatment 3