Measurement of acetabular cup anteversion with the circle theorem.


OBJECTIVE Malposition of the acetabular cup is the major risk factor of dislocation after total hip arthroplasty. Postoperatively, measuring of acetabular cup anteversion is very difficult. The new method for measuring acetabular cup anteversion on the plain radiograph of the hip with one of the circle theorems in the basic geometry was created. MATERIAL… (More)


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