Rheumatoid Arthritis of the Foot and Ankle - OrthoInfo - AAOSHow It Happens. The joints of your body are covered with a lining — called synovium — that lubricates the joint and makes it easier to move.Foot and Ankle Conditions: Rheumatoid ArthritisRheumatoid Arthritis Rheumatoid Arthritis can have significant effects on the feet and the ankle. These range from swelling of the toe joints ...Foot Arthritis - Rheumatoid and Osteoarthritis of the Foot ...foot arthritis,rheumatoid arthritis,osteoarthritis,foot joint arthritis,arthrtis pain,arthirits