Micah (he/him) had a brain tumor excised 4 months ago, and n…

Micah (he/him) had a brain tumor excised 4 months ago, and now has significant spasticity in his right quadriceps. As a result, he walks with a stiff-leg gait and has difficulty descending stairs. His neurologist is monitoring his medication levels to help manage spasticity. Which intervention would reflect current best PT practice for addressing spasticity?