Anterior Subluxation after Total Hip Replacement Confirmed by Radiographs: Report of Two Cases

Abstract

Demonstrable anterior subluxation of the femoral head after a total hip arthroplasty is a rare complication and is usually transient. Both a case of recurrent subluxation and a case of chronic subluxation are described in this paper, each one presenting with unexpected femoral head eccentricity in the acetabulum on radiograph. We show how this unusual complication can be successfully identified and treated.

The Value of the Direct Lateral Hip Radiograph in an Adult Reconstruction Practice

“…The ischio-lateral method relies on an internal reference (the ischial tuberosity) and has been shown to have good reproducibility, reliability, and less variation when performed on the direct lateral radiograph as compared with other methods of analyzing acetabular component position following arthroplasty. [2] Finally, anterior or posterior bearing surface subluxation or dislocation can be easily evaluated with the direct lateral x-ray [17,18].…”