Lower back pain: Difference between revisions

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== Causes  ==
==Background==
*Pain lasting >6wk is risk factor for more serious disease


{| style="width: 479px; height: 436px" border="1" cellpadding="1"
==Clinical Features==
|-
*Musculoskeletal pain
| '''Cause'''
**Located primarily in the back w/ possible radiation into the buttock/thighs
| '''Patient'''
*Sciatica
| '''Onset'''
**Refers to radicular back pain in the distribution of a lumbar or sacral nerve root
| '''Radiation'''
**Often accompanied by sensory or motor deficits
| '''Exam'''
**Occurs in only 1% of pts w/ back pain
| '''Evaluation'''
**95% of herniated disks occur at the L4-L5 or L5-S1 disk spaces
| '''Treatment'''
|-
| Fracture
|
Malignancy
 
Osteoporosis
 
| Acute-subacute
| Rare
| Localized pain  
| x-ray
|
Pain meds
 
Refer/admit
 
|-
| Malignancy
|
Hx of cancer
 
Age > 50
 
Pain > 1 mo
 
Incr. severity
 
| Subacute
| Yes with epidural mets
| +/- decr neuro
|
x-ray
 
ESR
 
MRI/CT-M
 
|
Steroids
 
Admit
 
|-
| Infection
|
Immunocomp
 
IVDA
 
Children
 
| Subacute
| Yes with epidural abscess
|
+/- decr neuro
 
Localized pain  
 
Fever in 50%  
 
|
x-ray
 
ESR
 
MRI/CT-M
 
|
Abx
 
Neurosx consult
 
|-
| Musc/skel
| Adults
|
Acute-subacute
 
| Yes if herniated disc
|
+/- decr neuro
 
+ SLR
 
|
Nothing
 
x-rays?
 
CT/MRI?
 
|
Pain meds
 
Modified activity
 
Referral
 
|-
| Cauda Equina
| Adults-elderly
| Acute-subacute
| colspan="2" |
Bilateral S/S
 
Urine/fecal changes
 
Decr rectal tone
 
Saddle anesthesia
 
| MRI/CT-M
| Neurosx
|}


== Work-Up  ==
== Work-Up  ==
#Pregnancy test  
#Pregnancy test  
#Straight leg raise testing
#Straight leg raise testing
##True sciatic tension should elicit pain before the hamstrings are stretched enough to move the plevis  
##True sciatic tension should elicit pain before hamstrings are stretched enough to move the plevis  
#X-rays* (if have red flag)  
#X-rays* (if have red flag)  
##Adults: AP + lateral of lumbar spine  
##Adults: AP + lateral of lumbar spine  
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##Rule-out AAA
##Rule-out AAA


=== CT/MRI INDICATIONS ===
=== CT/MRI Indications ===
#Suspect disc dis. w. severe motor impairment,
#Suspect disk disease w/ severe motor impairment
#Suspect abcess or mets w/ neuro involv.
#Suspect abcess or mets w/ neuro involvement
#Cauda equina syndrome.
#Cauda equina syndrome  
#Elevated ESR
#Elevated ESR


== Red Flags  ==
== Red Flags  ==
*See [[Back Pain (Red Flags)]]
*See [[Back Pain (Red Flags)]]
== DDX  ==
== DDX  ==
*AAA  
*AAA  
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== Cord Compression  ==
== Cord Compression  ==
 
*L4
L4: pain frnt leg, weak knee ext., sens. loss knee/medial foot, lose knee jerk.  
**pain frnt leg, weak knee ext., sens. loss knee/medial foot, lose knee jerk.  
 
*L5
L5: pain side leg, wk dorsiflex, sens. loss lat lo leg & web big toe, reflex intact.  
**pain side leg, wk dorsiflex, sens. loss lat lo leg & web big toe, reflex intact.  
 
*S1
S1: pain back leg, weak plantarflex, sens. loss calf/lat foot, ankle jerk gone.  
**pain back leg, weak plantarflex, sens. loss calf/lat foot, ankle jerk gone.  


-Straight leg raise most sens., crossed most specific.  
-Straight leg raise most sens., crossed most specific.  
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-Stenosis: back pain w/ walking, usually old person radiation to legs: Pseudo claudication. Usu. will curl after walking to get relief.  
-Stenosis: back pain w/ walking, usually old person radiation to legs: Pseudo claudication. Usu. will curl after walking to get relief.  


== Treatment (Pain)  ==
== Treatment ==
 
*Mild to mod:  
Mild to mod:  
**NSAIDs  
 
*Mod to Severe  
-NSAIDs  
**Non-narcotic(toradol/norflex), then 2-10 of MSO4 PRN  
 
**OPIOD (vicodin or percocet) & nonsteroidal for 2-3 dy, then NSAID alone.  
Mod to Severe  
 
-non-narcotic(toradol/norflex), then 2-10 of MSO4 PRN  
 
-OPIOD (vicodin or percocet) & nonsteroidal for 2-3 dy, then NSAID alone.  


-#1 NSAIDs: ibuprofen, naprosyn; #2 Valium first choice for spasm as muscle relaxant. #3 Narcotics w/ oxycodone (percocet) 10-15 tabs. (don't use flexoril)  
-#1 NSAIDs: ibuprofen, naprosyn; #2 Valium first choice for spasm as muscle relaxant. #3 Narcotics w/ oxycodone (percocet) 10-15 tabs. (don't use flexoril)  
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== See Also  ==
== See Also  ==
 
*[[Back Pain (Red Flags)]]  
[[Back Pain (Red Flags)]]  


== Source  ==
== Source  ==

Revision as of 05:02, 19 February 2012

Background

  • Pain lasting >6wk is risk factor for more serious disease

Clinical Features

  • Musculoskeletal pain
    • Located primarily in the back w/ possible radiation into the buttock/thighs
  • Sciatica
    • Refers to radicular back pain in the distribution of a lumbar or sacral nerve root
    • Often accompanied by sensory or motor deficits
    • Occurs in only 1% of pts w/ back pain
    • 95% of herniated disks occur at the L4-L5 or L5-S1 disk spaces

Work-Up

  1. Pregnancy test
  2. Straight leg raise testing
    1. True sciatic tension should elicit pain before hamstrings are stretched enough to move the plevis
  3. X-rays* (if have red flag)
    1. Adults: AP + lateral of lumbar spine
    2. Children: add oblique views (to evaluate for spondylolisthesis)
  4. Labs
    1. CBC/ESR/Chem 7/UA (if >50 yo)
  5. US
    1. Rule-out AAA

CT/MRI Indications

  1. Suspect disk disease w/ severe motor impairment
  2. Suspect abcess or mets w/ neuro involvement
  3. Cauda equina syndrome
  4. Elevated ESR

Red Flags

DDX

  • AAA
  • Cauda equina syndrome
  • Epidural abcess/hematoma
  • Spinal fracture with cord/nerve impingement
  • Back pain with neurologic def
  • Intervetebral disk herniation
  • Cancer
  • Meningitis
  • Sciatica
  • Spinal fracture
  • Spinal stenosis
  • Transverse myelitis
  • Vertebral osteo
  • Acute ligamentous injury
  • Acute muscle strain
  • Ankylosing spondylitis
  • Degeverative joint disease
  • Intervetebral disk disase
  • Pathologic fracture
  • Seropositive arthritis
  • Spondylolithesis
  • Cholecystitis
  • Esophageal disease
  • Pleural effusion
  • Pancreatic disease
  • Ulcer perforation
  • Retrocecal appendicitis
  • Large bowel obstruction
  • Renal disease
  • Pelvic disease
  • PID
  • Nephrolithiasis
  • PNA
  • PE
  • Pyelonephritis
  • Retroperitoneal hemorrhage/mass

Cord Compression

  • L4
    • pain frnt leg, weak knee ext., sens. loss knee/medial foot, lose knee jerk.
  • L5
    • pain side leg, wk dorsiflex, sens. loss lat lo leg & web big toe, reflex intact.
  • S1
    • pain back leg, weak plantarflex, sens. loss calf/lat foot, ankle jerk gone.

-Straight leg raise most sens., crossed most specific.

-Hypertrophic spur formation behind vert. is most likely non-disc cause of + SLR.

-Sciatica: impinged or irritated nerve. radicular distr., sharp, NO paresthesias/pain distal to knee/neuro impairment.

-Stenosis: back pain w/ walking, usually old person radiation to legs: Pseudo claudication. Usu. will curl after walking to get relief.

Treatment

  • Mild to mod:
    • NSAIDs
  • Mod to Severe
    • Non-narcotic(toradol/norflex), then 2-10 of MSO4 PRN
    • OPIOD (vicodin or percocet) & nonsteroidal for 2-3 dy, then NSAID alone.

-#1 NSAIDs: ibuprofen, naprosyn; #2 Valium first choice for spasm as muscle relaxant. #3 Narcotics w/ oxycodone (percocet) 10-15 tabs. (don't use flexoril)

-Bedrest 2-3 days

-Referral

See Also

Source

1/26/06 DONALDSON (adapted from Rosen, Lampe, Hock)