Joint LEAST involved in primary osteoahritis: March 2013 (b, h): (A) Hip, (B) Trapezio-metacarpal, (C) Knee, (D) Coraco-clavicular
Answer is D. Ans. D i.e. Coracoclavicular Osteoahritis Usually OA involves: - Hip, - Knee Does not affect MCP joint Interphalangeal joints & nodes: - DIP - Heberdens node; PIP - Bouchard nodes X-ray shows: Osteophyte formation, narrowing of joint space etc.