compartment syndrome Flashcards

1
Q

what is compartment syndrome?

A

A rise in pressure within a compartment due loss of blood supply to the muscle and nerve within compartment

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2
Q

cause

A

any injury leading to oedema
fracture
ischaemia to the compartment leading to muscle oedema

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3
Q

eaton and green cycle for compartment syndrome?

A

trauma — muscle ischaemia —histamine release —increased capillary permeability— intramuscular oedema (venous occulsion)—increased intramuscular pressure—venous lymphatic obstruction—arterial ovculsion/spasm —muscle ischaemia

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4
Q

diagnosis

A

excessive pain
not relieved with usual dose of analgesics
stretch test: passive moving the joint in direction opposite to that of the damage muscle action
tense compartment
hypothesia in the distribution of involved nerve
muscle weakness
pressure <30 mmhg
<20 mmhg indicate intercompartmental pressure is suggestive of compartment syndrome

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5
Q

treatment

A

limb elevation
active finger movement
fasciotomy
fibulectomy

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6
Q

pt mgt (lower extremity compartment syndrome)

A

Conservative therapy

  • Conservative treatment of CECS mainly involves a decrease in activity or load to the affected compartment.
  • Aquatic exercises, such as running in water, can maintain/improve mobility and strength without unnecessarily loading the affected compartment.
  • Massage/ Massage therapy can also help by patients with mild symptoms or people who have declined surgical intervention, enabling them to engage in more exercise without pain
  • stretching exercises

Pre-surgical therapy
•Pre-surgical therapy in CECS includes reduction of activity, with encouragement of cross-training and muscle stretching before initiating exercise.
•Other preoperative measures are rest, shoe modification, and the use of nonsteroidal anti-inflammatory medications (NSAIDs) to reduce inflammation.
•It is recommended to avoid casting, splinting, or compression of the affected limb.

Post-surgical therapy

  • assisted weight bearing with some variation, depending on surgical technique.
  • Early mobilisation is recommended as soon as possible to minimise scarring, which can lead to adhesions and a recurrence of the syndrome.

•Activity can be upgraded to stationary cycling and swimming after healing of the surgical wounds
•Isokinetic muscle strengthening exercises can begin at 3-4 weeks.
•Running is integrated into the activity program at 3-6 weeks
•Full activity is introduced at approximately 6-12 weeks, with a focus on speed and agility
•The following are recommendations for a full recovery and to avoid recurrence;
-Wearing more appropriate footwear to the terrain
-Choosing more appropriate surfaces and terrain for exercise
-Pacing your activities
-Avoiding certain activities altogether
-Mastering strategies for recovery and maintenance of good health (e.g, appropriate rest between sessions)
-Modifying the workplace to lower the risk of injury

•restore range of motion, mobility, strength and function.[

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7
Q

What are the 5 P’s of compartment syndrome?

A

pain,
pallor (pale skin tone),
paresthesia (numbness feeling), pulselessness (faint pulse) and
paralysis (weakness with movements)

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8
Q

why pressure increase in the compartment syndrome?

A

Because the fascia does not stretch, this can cause increased pressure on the capillaries, nerves, and muscles in the compartment. Blood flow to muscle and nerve cells is disrupted.

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9
Q

Compartment Syndrome

Lower Extremity

A

It is a condition in which increased pressure (usually due to fracture haematoma) within the osteo-musculo-facial space compromises the circulation of the contents of that space and thereby causes damage to the tissues in the compartment.
It mainly occurs in forearm and leg

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10
Q

pathophysiology

A

normal tissue pressure
0-4 mmhg
8-10 with extension

absolute pressure theory
30 mmhg -mubarak
45 mmhg -masten

pressure gradient theory
<30 mmhg of diastolic pressure
-whitesides, mcqueen

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11
Q

tissue survivals

A

muscle

3-4 hours - reversible changes
6 hours - variable damage
8 hours-irreversible change

nerve

2 hour-loose nerve conduction
4 hour-neuropraxia
8 hour- irreversible changes

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12
Q

delayed diagnosis

A

contracture
infection
amputation
permanent sensory & motor deficit

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13
Q

how we diagnose 6ps?

A
  • pain out of proportion
  • palpably tense compartment
  • pain with passive stretch
  • parasthesia
  • paralysis
  • pulselessness/ pallor
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14
Q

tYpes

A

A - anterior tibial syndrome or compartment syndrome
B-lateral compartment syndrome (peroneal compartment syndrome)
C- posterior compartment syndrome
1-superficial posterior compartment syndrome
2-Deep posterior compartment syndrome

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