Geriatrics and Palliative Carecommon
A 74-year-old man is referred for six months of recurrent falls. He reports that his feet sometimes seem stuck to the floor when he starts walking, and he takes small steps when turning; he has no spinning sensation, syncope or sensory symptoms in his feet. Examination shows reduced arm swing and bradykinesia, but no limb dysmetria or postural blood pressure fall. Which one of the following is the most likely diagnosis?