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A. Anatomicnavigator

  1. Muscular
  2. Nerve compression (pain, paresthesias, sensory loss, weakness, incontinence)
  3. Skeletal
    1. Degenerative Joint Disease
    2. Slipped Disk (esthesia)
    3. Fracture (vertebral): body, spinous / transverse process, pars interarticularis

B. Inflammatorynavigator

  1. Osteomyelitis (blood cultures should be obtained especially in elderly patients)
  2. Nonbony Infection: Soft Tissue Abscess, Pyelonephritis, Pyomyositis
  3. Neoplastic Infiltration
  4. Hyperplastic Bone Marrow - including sickle cell disease, myeloproliferative disease
  5. Spondyloarthropathy, especially ankylosing spondylitis
  6. Scleroderma

C. True Sciaticanavigator

  1. Increased pain on straight leg raise, radiating down back of leg to foot (heal)
  2. Sensory decrease or loss in dermatomal distribution
  3. Herniated nucleus pulposus
  4. Lateral or foraminal stenosis
  5. Intraspinal mass - tumor or infection
  6. Piriformis syndrome - buttock and leg pain, low back pain
  7. Lumbar canal stenosis

D. Pseudosciatica navigator

  1. Osteoarthritis - hip disease
  2. Trochanteric bursitis
  3. Meralgia paresthetica
  4. Diabetic amyotrophy
  5. Vascular Claudication - pseudoclaudication
  6. Malingering