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Musculoskeletal infections are caused by disease-causing organisms invading an individual's muscles, bones or joints. Most infections are bacterial, but they can also be fungal, parasitic or viral. Muscles are relatively resistant to infection, but bacterial myositis can occur in the setting of muscular injury, surgery, ischemia or the presence of a foreign body. In some cases, the immune system mistakenly attacks a person's own healthy muscle fibres, causing muscle inflammation, weakness and fatigue.
| Characteristics | Values |
|---|---|
| Cause | Bacteria, white blood cells of the immune system |
| Spread | Through the bloodstream |
| Occurrence | Uncommon |
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What You'll Learn
- Musculoskeletal infections are caused by the invasion of an individual's muscles, bones, or joints by disease-causing organisms
- Bacterial infections involving muscle are uncommon and are often caused by penetrating wounds or vascular insufficiency
- Myositis is caused by white blood cells of the immune system, which mistakenly attack a person's own healthy muscle fibres
- Bacterial myositis often occurs in the setting of muscular injury, surgery, or the presence of a foreign body
- Fungal myositis is rare and usually occurs among immunocompromised hosts
Musculoskeletal infections are caused by the invasion of an individual's muscles, bones, or joints by disease-causing organisms
Septic arthritis, also known as infectious arthritis, is a painful infection of the joint. This infection can occur when bacteria spread through the bloodstream from another area of the body. Bacterial infections involving muscle are relatively uncommon, but they can occur in the setting of muscular injury, surgery, ischemia, or the presence of a foreign body.
Myositis, a muscle inflammation, is caused by white blood cells of the immune system, which are supposed to protect the body from infections. However, in people with myositis, these cells mistakenly attack a person's own healthy muscle fibres, injuring or destroying them. This affects muscle function and can lead to fatigue and weakness.
The infecting organism is related to the mechanism of the infection. For example, an acute bacterial infection of skeletal muscle resulting from hematogenous spread is most commonly due to *Staphylococcus aureus*. Infection in the setting of penetrating wounds or vascular insufficiency is often polymicrobial. Establishing the bacterial or other cause of myositis is crucial in the management of myositis cases.
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Bacterial infections involving muscle are uncommon and are often caused by penetrating wounds or vascular insufficiency
Bacterial infections involving muscle are relatively uncommon. This is due to the musculature's resistance to infection. However, bacterial myositis can occur in the setting of muscular injury, surgery, ischemia, or the presence of a foreign body.
Myositis may result from contiguous sites of infection, penetrating trauma, vascular insufficiency, or by hematogenous dissemination. The infecting organism is related to the mechanism of the infection. For instance, an acute bacterial infection of skeletal muscle that is the result of hematogenous spread is most commonly due to Staphylococcus aureus. Infection in the setting of penetrating wounds or vascular insufficiency is often polymicrobial.
In people with myositis, the white blood cells of the immune system, which are normally supposed to protect the body from infections, mistakenly attack a person’s own healthy muscle fibres. This can injure or destroy muscle fibres, affecting muscle function and causing fatigue and weakness.
Establishing the bacterial or other cause of myositis is crucial in the management of myositis cases. This should be accomplished by Gram and other microbiologic stains, followed by aerobic and anaerobic culture and sensitivity data.
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Myositis is caused by white blood cells of the immune system, which mistakenly attack a person's own healthy muscle fibres
Musculoskeletal infections are caused by the invasion of an individual's muscles, bones or joints by disease-causing organisms, which multiply and cause a reaction in the body's tissues. Most of these infections are caused by bacteria, which can spread through the bloodstream from another area of the body.
Myositis is a bacterial infection of the muscle, which is relatively uncommon due to the musculature's resistance to infection. It is caused by white blood cells of the immune system, which mistakenly attack a person's own healthy muscle fibres. This can be caused by penetrating trauma, vascular insufficiency or by haematogenous dissemination. In the case of penetrating wounds or vascular insufficiency, the infection is often polymicrobial.
The white blood cells of the immune system are supposed to protect the body from infections, but in people with myositis, they can injure or destroy muscle fibres, affecting muscle function and causing fatigue and weakness. It is not clear why this happens, but there are clues in some cases.
Fungal myositis is rare and usually occurs in immunocompromised hosts, while parasitic myositis is most commonly a result of trichinosis or cystericercosis.
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Bacterial myositis often occurs in the setting of muscular injury, surgery, or the presence of a foreign body
Musculoskeletal infections are the invasion of an individual's muscles, bones, or joints by disease-causing organisms, their multiplication, and the reaction of the individual's body tissues to these organisms and the toxins they produce. Most musculoskeletal infections are caused by bacteria, which can spread through the bloodstream from another area of the body.
Bacterial myositis is a relatively uncommon infection involving muscle. It often occurs in the setting of muscular injury, surgery, or the presence of a foreign body. This is because the musculature is resistant to infection. Myositis may result from contiguous sites of infection, penetrating trauma, vascular insufficiency, or by hematogenous dissemination. The infecting organism is related to the mechanism of the infection. For example, an acute bacterial infection of skeletal muscle that is the result of hematogenous spread is most commonly due to *Staphylococcus aureus*. Infection in the setting of penetrating wounds or vascular insufficiency is often polymicrobial.
The muscle inflammation in myositis is caused by white blood cells of the immune system, which are normally supposed to protect the body from infections. In people with myositis, however, these cells mistakenly attack a person's own healthy muscle fibres and can injure or destroy muscle fibres. This affects muscle function and can lead to fatigue and weakness.
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Fungal myositis is rare and usually occurs among immunocompromised hosts
Muscle infections are usually caused by bacteria, although they can also be caused by fungi, parasites, or viruses. Bacterial infections are uncommon, and usually occur in the setting of muscular injury, surgery, ischemia, or the presence of a foreign body.
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Frequently asked questions
Muscle infection, or myositis, is caused by white blood cells of the immune system, which mistakenly attack a person's own healthy muscle fibres. It can also be caused by bacteria, fungi, parasites, or viruses.
Muscle infection is relatively uncommon due to the musculature's resistance to infection.
Muscle infection can lead to fatigue and weakness, as well as muscle injury and destruction.
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