she is having osteoporosis
[brittle bones], which are prone for fractures on-off.
simultaneously, she might be having O.A of knee joint, for which she may/ may not need knee replacement
, depending on her condition & her tolerence.
she needs to be on calcium supplements
Yes, u sholud visit ur doc, for check-up once in a while. For D-12 # she needs complete bed rest
& day care.