My 84 Yo Mother With History Of DDD, Spinal Stenosis

My 84 yo mother with history of DDD, spinal stenosis has fallen 5 times in the last 4 days. Had been doing PT. She walks in the pool daily, grocery shops etc. Legs randomly get weak and buckle. Says R>L leg weakness. She is now walking with a walker, and it is not much help as if her legs buckles down she goes.