You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is In rheumatoid arthritis which part of spinal column is involved - and explain in detail?
Ans. is 'a' i.e., Cervical Articular manifestations in rheumatoid arthritis* Rheumatoid arthritis can affect any of the synovial joints.* Most commonly the disease starts classically in the joints of hand and feet i.e. PIP, MCP and MTP with involvementof large joints occurring later.A) The hands# These are the major site of involvement in almost all patients with rheumatoid arthritis.# Of particular importance is the sparing of distal interphalangeal joint# Most commonly the disease starts in proximal interphalangeal joint. (PIP), and metacarpophalangeal joint (MCP).B) The Feet# Metatarsophalangeal joints are particularly involved in almost all cases of rheumatoid arthritis and are second only to hand involvement.C) Wrist# Involved in most patients; radial deviation is the rule.D) Large joints# Involvement of large joint (knee, elbows, hips and shoulders) is common but occurs somewhat later than small joint.E) Other joints# Upper cervical spine (facet joint) with atlantoaxial subluxation and temporomandibular joint.Symmetric involvement of the joint is also an important feature of articular involvement in rheumatoid arthritis.