Fluoroscopic imaging of acetabular cup position during THA through a direct anterior approach.

Mobile image intensifiers are more readily used to assess acetabular cup placement when performing a total hip arthroplasty through a direct anterior approach. However, patient positioning affects pelvic tilt and rotation, which in turn requires proper C-arm fluoroscopy adjustments for image interpretation. The authors provide insight into the interpretation of acetabular cup positioning based on the fluoroscopic images obtained to ensure appropriate cup positioning using the direct anterior approach for total hip arthroplasty.