Lumbar Disc Herniation · Conservative vs Minimally Invasive vs Fusion

Step-by-step decision

Choose step by step as prompted; reaching an endpoint gives the management recommendation. You can go back a step or restart anytime.

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Full pathway

1. [Decision] Cauda equina/progressive deficit? + course
   Cauda equina syndrome/progressive deficit? Course and response to conservative care?
   • Cauda equina syndrome (saddle anesthesia, bladder/bowel dysfunction, bilateral legs) or acute severe/progressive motor deficit (foot drop) → Cauda equina/severe deficit → emergency decompression
   • Radicular pain, no major deficit, <6–12 weeks → Radicular pain → conservative 6–12 weeks
   • Conservative 6–12 weeks failed or persistent disabling radicular pain → Conservative failed → discectomy (minimally invasive)
   • Associated segmental instability/spondylolisthesis/recurrence/deformity → Instability/spondylolisthesis → decompression + fusion
2. [End] Cauda equina/severe deficit → emergency decompression
   Cauda equina syndrome or acute progressive severe motor deficit → emergency MRI + surgical decompression as soon as possible (the earlier the better, ideally within 24–48 h); delay causes permanent bladder/bowel/motor dysfunction.
3. [End] Radicular pain → conservative 6–12 weeks
   Radicular pain, no major deficit → conservative first (6–12 weeks): analgesia/NSAIDs, activity modification, physiotherapy ± epidural steroid injection; most resolve spontaneously.
4. [End] Conservative failed → discectomy (minimally invasive)
   Conservative care for 6–12 weeks failed or persistent disabling radicular pain → discectomy (microdiscectomy or endoscopic minimally invasive); targets the herniation itself, preserves the segment, no routine fusion.
5. [End] Instability/spondylolisthesis → decompression + fusion
   Associated segmental instability/spondylolisthesis/recurrent herniation/deformity → decompression + fusion (e.g. TLIF/PLIF); a simple disc herniation does not warrant fusion.

Source guidelines & references

• Lumbar disc herniation with radiculopathy, NASS evidence-based guideline

This pathway is our own synthesis of the decision logic in the guidelines above (not the guideline verbatim); thresholds and workflows change as guidelines update — in practice follow the latest guideline, your institution's protocol and the individual patient.

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