What is compartment syndrome?

What is compartment syndrome?

• A. A serious condition that may develop when swelling exists in limb compartments and can compromise circulation
• B. A mild soreness of muscle
• C. A skin rash from allergies
• D. A nerve root compression

Answer: (A)

Compartment syndrome is a serious condition in which swelling or bleeding within a closed muscle compartment raises the pressure inside that space. The surrounding fascia is inelastic, so the increased pressure can squeeze blood vessels and cut off blood flow, risking tissue death if not treated quickly. It often follows injuries like fractures, crush injuries, or after swelling with a tight cast or bandage. The hallmark is severe pain that’s out of proportion to what you see on examination and that worsens with movement or stretching of the affected muscle. The area may feel tense or firm, and numbness or tingling can occur as nerves become affected. As it progresses, weakness may appear. Pulses may still be present early, so relying on pulse checks alone isn’t enough to rule it out. Because it can cause permanent damage in a matter of hours, it’s treated as an emergency, typically with a fasciotomy to release the pressure. In the meantime, remove any constrictive dressings, keep the limb at heart level, and monitor neurovascular status closely. Other options describe less dangerous or unrelated conditions, such as mild muscle soreness or a skin rash, which do not involve the hazardous rise in pressure within a limb compartment.

Compartment syndrome is a serious condition in which swelling or bleeding within a closed muscle compartment raises the pressure inside that space. The surrounding fascia is inelastic, so the increased pressure can squeeze blood vessels and cut off blood flow, risking tissue death if not treated quickly. It often follows injuries like fractures, crush injuries, or after swelling with a tight cast or bandage.

The hallmark is severe pain that’s out of proportion to what you see on examination and that worsens with movement or stretching of the affected muscle. The area may feel tense or firm, and numbness or tingling can occur as nerves become affected. As it progresses, weakness may appear. Pulses may still be present early, so relying on pulse checks alone isn’t enough to rule it out. Because it can cause permanent damage in a matter of hours, it’s treated as an emergency, typically with a fasciotomy to release the pressure. In the meantime, remove any constrictive dressings, keep the limb at heart level, and monitor neurovascular status closely.

Other options describe less dangerous or unrelated conditions, such as mild muscle soreness or a skin rash, which do not involve the hazardous rise in pressure within a limb compartment.