<prompt> Pseudoflexion deformity of hip is seen in?Iliopsoas abcessTom smith arthritisRicketsPosterior dislocation of hip  <response>: ANSWER: A Iliopsoas abcessREF: Tuberculosis by tuli 3rd e p. 193Psoas abscess gives rise to pseudo hip flexion deformity, due to spasm of the illiopsoas muscles .ipsilateral flexion of hip joint relieves the pain and extension increases it. 