title: Aseptic loosening of cemented total arthroplasties of the hip in relation to positioning of the prosthesis. New utilization of the Tschuprow-Cramer statistical test.
abstract: A statistical study of 1200 McKee-Farrar cemented total prostheses of the hip demonstrated the importance of a horizontal position of the cup and a valgus position of the prosthetic stem, in avoiding aseptic loosening of the prosthetic parts. A new test (the Cramer test) showed that a statistical bond exists between the position of the prosthesis and the occurrence of aseptic loosening.
mesh_terms: D001843:Bone Cements; D005500:Follow-Up Studies; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D011183:Postoperative Complications; D011187:Posture; D013223:Statistics as Topic
chemical_list: D001843:Bone Cements