Extra-acetabular resection of a protruding transacetabular screw after total hip arthroplasty for developmental dysplasia: A case report

Figure 1 Serial pelvic radiographs. A: Anteroposterior pelvic radiograph showing bilateral developmental dysplasia of the hip; B: Postoperative anteroposterior pelvic radiograph after left total hip arthroplasty (THA); C: Immediate postoperative anteroposterior pelvic radiograph after the right THA illustrating mild acetabular penetration by the transacetabular screw; D: A new postoperative anteroposterior pelvic radiograph on the same day after the right THA showing protrusion of the transacetabular screw into the greater sciatic notch.

Figure 2 Resected screw tip using a Gigli saw and a bolt cutter.

Figure 3 Postoperative and long-term radiographic follow-up after acetabular screw trimming. A: Immediate postoperative anteroposterior pelvic radiograph showing the trimmed acetabular screw. No implant was revised; B: Anteroposterior pelvic X-ray at 3 years after surgery. No implant migration or loosening is apparent.