<prompt> Loose body in joint most common site is -KneeHipElbowAnkle  <response>: Ans. is a i.e., Knee Loose body in jointo A loose body is a free-floating piece of bone, cartilage or foreign object in a joint,o The knee is the most common joint where one would find a loose body.o Causes of loose bodies include :-OsteoarthritisOsteochondritisdessicansOsteochondral fractureinjuryCharcots diseaseSynovial chondromatosis 