Botulinum toxin injections in CP are typically used for which type of spasticity?

• A. Used for generalized spasticity across all limbs.
• B. It cures CP.
• C. It's contraindicated in CP.
• D. Used for focal spasticity in CP.

Answer: (D)

Botulinum toxin works by temporarily blocking acetylcholine release at the neuromuscular junction, producing a focused decrease in tone in the injected muscles. In cerebral palsy, spasticity is often localized to specific muscle groups rather than spread evenly across the body, so targeting those particular muscles can reduce resistance to movement and stretching where it matters most. This targeted reduction allows more effective use of therapy, casting, and orthoses to improve alignment, range, and function—for example relaxing plantar flexors to improve gait or elbow/wrist flexors to aid reaching and hand use. The effect lasts for several months, after which repetitions may be needed as part of a broader rehab plan. It is not a cure for CP and is not used to treat generalized spasticity across all limbs. It is not contraindicated; rather, it’s a well-established option for managing focal spasticity in CP.