<prompt> Joint not involved in osteoahritis ?PIPPIPMCPKnee  <response>: Ans. is c i.e., MCP Joint involvement in OA Common joints : Knee, Hip, Spine cervical, lumbosacral, Hand PIP, DIP, first carpometacarpal, first tarsometatarsal. Uncommon joint : Shoulder Spared : Wrist, elbow, ankle, metacarpophalangeal. 