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I went through your query and understood your concern.
I went through her reports (the attachments removed to protect the patient's identity).
It seems she has osteoarthritis. Osteoarthritis is an age-related degenerative condition that affects the major joints like the knee joint. It is caused due to the constant friction that occurs between the bones when a person walks, runs, or sits which involves the joint. As this is age-related, it cannot be reversed. Treatment includes the use of painkillers and some specific medicines which helps to a moderate extent in repairing the joint surface. The definitive treatment remains knee replacement but this is too early for your mother.
I hope this has helped you.
Thanks and regards.