Rheumatoid arthritis commonly affects the -
Ans. is 'a' i.e., Cervical spine o In decreasing frequency, the metacarpophalangeal (MCP), wrist, proximal interphalangeal (PIP), knee, metatarsophalangeal (MTP), shoulder, ankle, cervical spine, hip, elbow and temporomandibular joints are most commonly affected.
Cervical spine
Thoracolumbar spine
Lumbar spine
Sacral spine
Rheumatoid Arthritis