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Decorticate posture

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Decorticate posture

Definition:

Decorticate posture is an abnormal posturing indicated by rigidity, flexion of the arms, clenched fists, and extended legs. The arms are bent inward toward the body with the wrists and fingers bent and held on the chest. Presence of this type of posturing implies severe damage to the brain with immediate need for medical attention.

Considerations:

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Decorticate posture indicates damage to the corticospinal tract, the pathway between the brain and spinal cord. Although a serious sign, it is usually more favorable than decerebrate posture.

Decorticate posture may progress to decerebrate posture, or the two may alternate. The posturing may occur on one or both sides of the body.

Common Causes:

• Brain abscess
• Primary brain tumor
• Secondary brain tumor
• Increased intracranial pressure from any cause
• Stroke
• Head injury

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