Pathophysiology

  • Neoplasm within the vertebral column and or spinal cord
  • Classified as:
    • Extradural - most commonly metastatic malignancy, frequently from breast, prostate, thyroid, kidney, lung (2 lobed things..), and stomach.  
    • Intradural - Meningioma, ependymomas, astrocytomas

Red flags

  • Age > 50 years
  • Gradual, insidious onset of symptoms which have not improved with 4-6 weeks
  • Severe back pain, often worse at night disrupting sleep
  • Back pain exacerbated by increased by valsalva (e.g. sneezing, defaecation)
  • Localised pain on palpation
  •  Systemic features - weight loss
  • History of malignancy 

If there is suspicion of spinal tumour

  • Arrange urgent referral to a spinal surgery service, or perform urgent MRI (within 2 weeks) 

Management of spinal metastases

  • Analgesia as per WHO 3-step ladder
  • Bisphosphonates 
    • For all patients with vertebral involvement from  myeloma or breast cancer
    • Consider in prostate cancer if other analgesia fails
  • Radiotherapy or surgery 

Metastatic spinal cord compression

  • Compression of the spinal cord which occurs as a result of either direct pressure from a tumour, fracture/collapse of invaded vertebrae with resultant neurological compromise. 
  • Clinical features: Back pain with red flags as above with neurological symptoms such as:
    • Upper/lower limb weakness 
    • Sensory disturbance
    • Radicular pain
    • Autonomic features - bladder/bowel dysfunction
    • Features of cord/compression or CES
  • Investigations: MRI of whole spine within 24 hours of symptoms 
  • Immediate management
    • Flat bed rest
    • Corticosteroids - 16mg daily of dexamethasone 
      • PPI cover should be co-prescribed
      • Monitor BMs for steroid-induced hyperglycaemia 
      • Contraindicated if significant suspicion of lymphoma
    • Further management - radiotherapy or surgery