Hello and welcome to HCM,
Arthritis is a degenerative disease and it does not spread to adjoining sites.
However, the degenerative process can involve some other joint also besides the lower back joints.
The arthritis is most common in the joints of lower back and is controlled by appropriate medication.
The drugs halt the ongoing degenerative process but do not reverse the disease process.
The arthritis has a waxing and waning course and long term treatment is required.
Osteoarthritis is also a degenerative condition which affects the knee joints.
This is an age related and degenerative disorder.
Osteoarthritis can also arise as a separate disease process unrelated to arthritis of lower spine.
In addition, I suggest you to get a
blood test for
HLA-B27 because this is the most common abnormality associated with arthritis of lower back.
Consult your orthopedician for prescription of this test.
Thanks and take care
Dr Shailja Puri