<prompt> Feature of osteoarthritis is -Heberden nodeIncreased ESROnycholysiZ deformity  <response>: Ans. is a i.e.. Heberden nodeJoint involvement in QAo Common joints : Knee, Hip, Spine cervical, lumbosacral, Hand PIP, DIP, first carpometacarpal, first tarsometatarsal.o Uncommon joint: Shouldero Spared : Wrist, elbow, ankle, metacarpophalangeal.o In osteoarthritis of hand :Distal interphalangeal joint Heberdens node.Proximal interphalangeal jointBouchards node 