On postoperative day three after cervical arthrodesis, I have radiculopathy affecting the thumb, index, and middle fingers; is this likely due to my pre‑existing cervical stenosis and herniated discs or to the recent arthrodesis procedure?

Postoperative Day 3 Radiculopathy After Cervical Arthrodesis

Your new radiculopathy affecting the thumb, index, and middle fingers (C6-C7 distribution) on postoperative day 3 is most likely related to the arthrodesis procedure itself—either from surgical manipulation, nerve root irritation during decompression, postoperative swelling/hematoma, or inadequate decompression—rather than simply your pre-existing stenosis and disc herniations.

Why the Surgery is the Likely Culprit

The timing is critical here. New or worsening radiculopathy appearing within the first few days after cervical arthrodesis represents a surgical complication until proven otherwise. Several mechanisms explain this:

Immediate Postoperative Causes (Days 1-7)

• Nerve root manipulation/traction injury during surgical exposure and decompression
• Epidural hematoma causing acute compression
• Postoperative edema at the surgical site compressing nerve roots
• Inadequate decompression of the neural foramen if the cage was placed too anteriorly or if posterior osteophytes weren't fully removed 1
• Graft/cage malposition reducing foraminal height, particularly at the posterior disc space 1
• Iatrogenic foraminal stenosis from loss of posterior disc height during fusion 1

What Your Surgeon Needs to Evaluate Immediately

Given the severity of your symptoms on day 3, your surgical team should:

1. Perform urgent neurological examination documenting:

   • Motor strength in thumb abduction (abductor pollicis brevis - C6/C7)
   • Index/middle finger extension and flexion strength
   • Sensory deficits in C6-C7 dermatomal distribution
   • Reflexes (biceps C5-C6, triceps C7)

2. Obtain imaging based on clinical findings 2:

   • CT cervical spine without contrast is superior for assessing hardware position, cage placement, foraminal dimensions, and bony alignment in the immediate postoperative period
   • MRI cervical spine without contrast if CT shows adequate hardware but symptoms persist—MRI detects epidural hematoma, nerve root compression, and soft tissue abnormalities despite metal artifact 2
   • CT myelography if MRI is contraindicated or nondiagnostic due to hardware artifact 2

Critical Surgical Pitfalls to Identify

Recent evidence highlights specific technical failures that cause postoperative radiculopathy 1:

• Posterior disc height loss: When the interbody cage is placed too anteriorly, the posterior disc space collapses, narrowing the neural foramen where your nerve roots exit
• Excessive focus on lordosis restoration rather than maintaining foraminal height and width
• Incomplete posterior osteophyte removal during decompression
• Vertebral slippage from inadequate distraction or cage subsidence

The Pre-existing Disease Question

While your pre-existing cervical stenosis and herniated discs created the substrate for radiculopathy, they were presumably addressed during your arthrodesis. The fact that new or dramatically worsened symptoms appeared immediately postoperatively points to a surgical issue rather than natural disease progression.

Adjacent segment disease—where untreated levels above or below the fusion develop symptomatic compression—occurs at 2.9% per year and affects 25.6% of patients within 10 years 3. However, this is a long-term complication, not something that manifests on postoperative day 3.

What Happens Next

If Imaging Shows a Correctable Problem

• Epidural hematoma: Urgent surgical evacuation
• Cage malposition/foraminal collapse: Revision surgery to reposition the cage more posteriorly and restore posterior disc height 1
• Inadequate decompression: Revision foraminotomy, potentially via anterior or lateral approach 4

If Imaging Shows Adequate Decompression

• Nerve root edema/neuropraxia: May improve with high-dose corticosteroids and time (weeks to months)
• Traction injury: Recovery depends on severity; mild cases resolve in 6-12 weeks

Red Flags Requiring Immediate Action

Contact your surgeon urgently if you develop:

• Progressive motor weakness (inability to lift thumb or fingers)
• Bilateral symptoms (both arms affected)
• Bowel/bladder dysfunction (suggests spinal cord compression)
• Severe, uncontrolled pain despite narcotics

Bottom Line

Do not accept "wait and see" on postoperative day 3 with new radiculopathy. Demand clinical evaluation and appropriate imaging today. Early identification of surgical complications (hematoma, malposition, inadequate decompression) allows for timely intervention that can prevent permanent neurological deficit. The 2025 ACR guidelines explicitly support MRI or CT in postoperative patients with new or worsening symptoms to detect adjacent level disease, hardware complications, and soft tissue pathology 2.

Your pre-existing pathology was the indication for surgery, but the timing and acuity of your symptoms implicate the surgical intervention itself as the proximate cause.