Fig. 1

a Pre-operative radiograph showed osteonecrosis of the femoral head in patient with primary immune thrombocytopenia. b Preoperative transfusions of six units of platelet concentrate and two units of packed red blood cells were performed. Postoperatively, six units of platelet concentrates and four units of packed red blood cells were transfused. Post-operative radiograph of cementless total hip arthroplasty performed with ceramic-on-ceramic bearing. c Twelve-year follow-up radiograph showed a well-fixed prosthesis with no osteolysis