A small gait tweak eased knee arthritis pain — no drugs or surgery

In a 68-person, placebo-controlled trial, adjusting the foot's angle by a few degrees while walking reduced knee-osteoarthritis pain significantly more than a sham gait; researchers put the size of the effect somewhere between an over-the-counter painkiller and a strong one. MRI also showed slower decline in a marker of cartilage health — pointing to a non-surgical option for mild-to-moderate knee pain.