<p>Two types of regional anesthesia do not make patients more prone to falls in the first days after having knee replacement surgery as some have previously suggested, according to a study based on nearly 200,000 patient records. Regional forms of anesthesia – spinal or epidural (neuraxial) anesthesia and peripheral nerve blocks (PNB) – which only numb the area of the body that requires surgery, provide better pain control and faster rehabilitation and fewer complications than general anesthesia, research shows. But some surgeons avoid using them due to concerns regional anesthesia may cause motor weakness, making patients more likely to fall when they are walking in the first days after knee replacement surgery.</p>