Which term is typically used to describe the outcome of severe brain injury?

Which term is typically used to describe the outcome of severe brain injury?

• A. Posturing
• B. Spasticity
• C. Rigidity
• D. Contracture

Answer: (A)

Abnormal body positions, or posturing, are a classic sign seen after severe brain injury. When control over muscles is disrupted, the body can assume fixed, stereotyped positions in response to stimuli or spontaneously. The two well-known patterns are decorticate posturing (arms flexed and drawn toward the body with the legs extended) and decerebrate posturing (arms and legs extended with the body rigid). This kind of posturing reflects damage to higher brain centers and brainstem, signaling a severe level of injury. Spasticity, while common after brain injury, describes a velocity-dependent increase in muscle tone with passive movement, not a fixed posture. Rigidity is a tone issue usually seen in conditions like Parkinson’s disease, characterized by uniform increase in resistance to movement regardless of speed. Contracture refers to permanent shortening of muscles or soft tissues from disuse or long-term spasticity, not the immediate descriptive outcome of the injury itself. Thus posturing is the term that best captures the typical outcome described after severe brain injury.

Abnormal body positions, or posturing, are a classic sign seen after severe brain injury. When control over muscles is disrupted, the body can assume fixed, stereotyped positions in response to stimuli or spontaneously. The two well-known patterns are decorticate posturing (arms flexed and drawn toward the body with the legs extended) and decerebrate posturing (arms and legs extended with the body rigid). This kind of posturing reflects damage to higher brain centers and brainstem, signaling a severe level of injury.

Spasticity, while common after brain injury, describes a velocity-dependent increase in muscle tone with passive movement, not a fixed posture. Rigidity is a tone issue usually seen in conditions like Parkinson’s disease, characterized by uniform increase in resistance to movement regardless of speed. Contracture refers to permanent shortening of muscles or soft tissues from disuse or long-term spasticity, not the immediate descriptive outcome of the injury itself. Thus posturing is the term that best captures the typical outcome described after severe brain injury.