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Kaplan Qbank USMLE



Author7 Posts
  #1

please help me diff causes for low back pain

1.lumbar stenosis
2.lumbar compression
3.lumbar muscle strain
4.osteomyelitis
5.lumbar discitis
6.metastasis
7.ankylo spondiolitis
8.disc prolapse
9.vertebre #fracture

wat are the buzz word for the above that i should note in a question???


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  #2

With my little knowledge,

1. pain varies with position ( relieved with body incline forward)
2. lower limb and sphincter neurologic sign
3. ? history of muscle overuse, relieved by rest/at night
4. infection somewhere, HIV, at risk of TB, pain is constant, also occur at night
5. ??? septic features
6. metastasis: constant pain, age, h/o cancer or prostatism
7. age around 30, male, morning stiffness, restricted spine movement
8. sudden onset over background chronic pain, exaggerated by coughing, straight leg raising test
9. at risk of osteoporosis, trivial trauma, constant pain, not relieved by rest /at night

Please correct me if I m wrong.

Edited by nyimalay on 02/14/08 - 02:02 PM. Reason: correction

  #3

I'll try to fill in what I know has been useful for me.


1.lumbar stenosis
-worse on extension, standing and leaning back
-better on flexion, sitting and leaning forward

(NOTE: Disc herniation is the opposite of above. so:
Disc Herniation:
-better on extension, standing and leaning back
-worse on flexion, sitting and leaning forward


3.lumbar muscle strain
-look for actual MUSCLE tenderness. they may say something about the paraspinal muscles being sore or tender. It may be seen after trauma.


4.osteomyelitis
-Look for fever. MRI for vertebral osteo. S. aureus.


6.metastasis
-look for history of cancer -breast, lung, or prostate are the most common.

7.ankylo spondiolitis
-Key word: sacroiliac joints or sacroilitis. HLA-B27 positive

9.vertebre #fracture
Could also happen due to mets if hx of cancer or also due to osteoporosis or a person on corticosteroids long term (look for hx of SLE, Temporal arteritis, or Cushings -as UW had these examples!)


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  #4

thanks...which are tender..

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  #5

on local examination findings??? thanks

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  #6

I would say 3, 4, 9 . May be 6 too. What about 5?

  #7

ad 5: the patient is usually in a real distress (fever, leukocytosis, elevated levels of CRP/IL-6/Procalcitonin), sometimes even septic.







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