The Most Common Joints Involved During the Course of Rheumatoid Arthritis

The Most Common Joints Involved During the Course of Rheumatoid Arthritis

MCP90%–95%Ankle/subtalar50%–60%
PIP75%–90%Cervical spine (esp. C1–C2)40%–50%
Wrist75%–80%Elbow40%–50%
Knee60%–80%Hip20%–40%
Shoulder50%–70%Temporomandibular10%–30%
MTP50%–60%

MCP , metacarpophalangeal joint; MTP , metatarsophalangeal joint; PIP , proximal interphalangeal joint.

Involvement of the thoracolumbar, sacroiliac, or hand DIP joints is very rare in RA and should suggest another diagnosis, such as a seronegative spondyloarthritis (sacroiliac joints), psoriatic arthritis (DIP joints) or OA (lumbar spine, DIP joints;

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