Please Help My Mother for her treatments due to her foot illnesses Operation

Since 2016 my mother suffered from Osteoarthritis is a degenerative type of arthritis that typically begins in middle age and slowly progresses. And she got The symptoms of ankle disorders like : pain
swelling
stiffness
problems moving the ankle also her knee joint
inability to put any weight on the ankle
difficulty walking. Now in this year 2021 the orthopedic surgeon wants to operation her knee joint . But she needs money for that operation in the Hospital. So please be kindly heart to raising the money for her knee joint operation. Thank You for your kindly heart and helping.