Understanding Muscle Compartment Syndrome: Causes And Effects

what is muscle compartment syndrome

Compartment syndrome is a painful condition that occurs when there is a buildup of pressure around a group of muscles, nerves, and blood vessels. This pressure can decrease blood flow, preventing nourishment and oxygen from reaching nerve and muscle cells, causing permanent damage. Compartment syndrome can be acute, developing suddenly after severe injuries, or chronic, building up over time due to intense physical activities or exercise. Treatment for acute compartment syndrome is urgent and often requires surgery, while chronic compartment syndrome can usually be managed by adjusting one's workout routine.

Characteristics Values
Definition A painful condition that occurs when pressure within the muscles builds to dangerous levels
Compartments Groupings of muscles, nerves, and blood vessels in your arms and legs
Fascia A tough membrane that covers compartments; it does not stretch or expand easily
Causes Severe injuries, surgery complications, exercise, rhabdomyolysis, blocked circulation, anabolic steroid use, casts and tight bandages
Symptoms Intense pain, swollen muscles, visibly bulging muscles, muscle pain, weakness or numbness
Diagnosis Compartment pressure measurement, physical exam, symptoms
Treatment Surgery (fasciotomy), anti-inflammatory painkillers, rest, low-impact exercise
Prevention N/A

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Acute compartment syndrome

Compartment syndrome is a painful condition that occurs when there is a buildup of pressure around the muscles. This pressure can reduce blood flow, starving nerve and muscle cells of oxygen and nutrients.

The condition can occur in any muscle group but is most common in the legs, particularly the lower legs. It can also occur in the arms, abdomen, buttocks, shoulders, hands, and feet.

Symptoms of acute compartment syndrome include intense pain, swollen and visibly bulging muscles, severe pain when stretching, and a tingling or burning feeling under the skin.

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Chronic compartment syndrome

Compartment syndrome is a painful condition that occurs when there is a dangerous buildup of pressure around the muscles. This pressure can restrict blood flow, depriving nerve and muscle cells of oxygen and nutrients. Compartment syndrome can be acute, which is a medical emergency, or chronic, which develops over time and is usually not an emergency.

The symptoms of chronic compartment syndrome include pain, swelling, and sometimes disability in the affected muscles of the legs or arms. It is important to distinguish this condition from shin splints, a more common cause of leg pain in young people who engage in vigorous weight-bearing activities. While chronic compartment syndrome is not usually a medical emergency, it can be extremely painful and may require treatment such as rest, nonsurgical interventions, or surgery in some cases.

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Symptoms

Compartment syndrome is a painful condition that occurs when there is a dangerous buildup of pressure within the muscles. This pressure can decrease blood flow, which prevents nourishment and oxygen from reaching nerve and muscle cells. Compartment syndrome can be either acute (having severe symptoms for a short period of time) or chronic (long-lasting).

Acute compartment syndrome is a medical emergency that happens after severe injuries or as a surgery complication. It usually develops after a severe injury, such as a car accident or a broken bone. It can also occur after a relatively minor injury. It is extremely painful and can lead to permanent muscle damage, paralysis, or even death if not treated immediately. Symptoms of acute compartment syndrome include:

  • Intense pain
  • Swollen muscles
  • Visibly bulging muscles

Chronic compartment syndrome, also known as exertional compartment syndrome, is usually not a medical emergency. It is most often caused by athletic exertion and is reversible with rest. It is a musculoskeletal condition brought on by exercise, most commonly in the lower legs. Symptoms of chronic compartment syndrome include:

  • Pain and swelling in the muscles of the legs or arms during exercise
  • Recurring unusual pain, swelling, weakness, loss of sensation, or soreness while exercising or participating in sports activities
  • Pain, weakness, or numbness that prevents you from continuing to exercise or practice your sport at the same level of intensity
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Diagnosis

Compartment syndrome is a serious condition that requires prompt diagnosis and treatment. It occurs when excessive pressure builds up inside an enclosed muscle compartment, resulting in impaired circulation and a lack of blood, oxygen, and nutrients to the muscle tissues. The condition usually results from bleeding or swelling after an injury, and can be caused by fractures, severe trauma, or intense exercise. It can be acute or chronic.

Acute compartment syndrome is a medical emergency and requires immediate attention. If you suspect you have acute compartment syndrome, you should go to the emergency room or seek urgent care. The condition is diagnosed through a combination of physical examination and diagnostic tests. During the physical exam, a healthcare provider will examine the affected muscles and the surrounding area, evaluating symptoms such as intense pain, swollen muscles, visibly bulging muscles, and numbness. They may also rule out other conditions with similar symptoms, such as tendinitis or shin splints.

Diagnostic tests for acute compartment syndrome may include:

  • X-rays: X-rays can help rule out bone fractures and other injuries that could be causing the symptoms.
  • Compartment pressure measurement: This involves inserting a needle connected to a pressure monitoring device into the muscle before and after exercise to measure the pressure. This test is typically recommended when symptoms and other test results suggest compartment syndrome.
  • Radiographs: If a fracture is suspected, radiographs can be obtained to confirm the presence of a break.
  • Intracompartmental pressure measurement: While not always required, this measurement can aid in diagnosis if there is uncertainty. It is often measured with a manometer or a slit catheter, which is more accurate and allows for continuous monitoring.

Chronic compartment syndrome is less severe than acute compartment syndrome and usually develops over days or weeks. It is typically diagnosed by ruling out other conditions that could cause similar symptoms. Doctors may press on tendons to rule out tendinitis or order an X-ray to rule out a stress fracture.

Chronic compartment syndrome may be diagnosed based on:

  • Patient history: A doctor may suspect chronic compartment syndrome based on a patient's description of symptoms, including pain during exercise that goes away with rest.
  • Physical examination: A physical exam can help evaluate the affected muscles and identify any signs of swelling or muscle enlargement.
  • Laboratory and imaging tests: These may include X-rays or other imaging techniques to support the diagnosis and rule out other conditions.

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Treatment

Acute Compartment Syndrome Treatment

If acute compartment syndrome is suspected, it is crucial to seek immediate medical attention. The treatment for acute compartment syndrome involves surgery, known as a fasciotomy, to relieve the dangerous buildup of pressure in the muscle compartments. During a fasciotomy, a surgeon makes long incisions through the skin and the fascia layer to release the pressure. The procedure should ideally be performed within 6 hours of symptom onset to ensure optimal recovery. Without prompt treatment, acute compartment syndrome can lead to ischemia, necrosis, and even the need for amputation.

After a fasciotomy, patients typically require a month of rest before using the affected muscles again. In some cases, a skin graft may be necessary to close the incision site, and patients must be monitored for potential complications such as infection, acute renal failure, or rhabdomyolysis.

Chronic Compartment Syndrome Treatment

Chronic compartment syndrome is a manageable condition that usually does not require surgery. Treatment focuses on reducing pressure in the muscle compartments and preventing future pressure buildup. This can be achieved through various methods, including:

  • Rest: Allowing the affected muscle compartments to rest and avoiding overusing them is crucial for managing chronic compartment syndrome.
  • Medications: Anti-inflammatory medications, such as over-the-counter NSAIDs or acetaminophen, can help reduce inflammation and relieve pain associated with chronic compartment syndrome.
  • Exercise modification: Changing your exercise routine to include lower-impact activities or cross-training can help prevent stress and pressure buildup in the muscles.
  • Physical therapy: Working with a physical therapist can help improve strength and flexibility in the affected muscles, as well as provide guidance on modifying exercises to prevent further complications.
  • Orthotics: Shoe inserts, known as orthotics, can provide support for the feet and legs, which may be beneficial for individuals with chronic compartment syndrome in these areas.

In some cases, if other treatments are ineffective or the syndrome recurs, surgery (fasciotomy) may be considered for chronic compartment syndrome.

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