Location

Hip

Diagnosis

Loosening prosthesis

Discussion

The presence of radio-opaque lines within a radiolucent area, separated from the prosthetic tip by at least 2 mm, is defined as the “pedestal sign.” The pedestal sign is indicative of prosthetic loosening of the femoral stem in cementless total hip arthroplasty.

Reference

Jakim I, Barlin C, Sweet MB: Radiological signs of loosening of the femoral stem in cementless total hip arthroplasty S Afr J Surg 1989 Jul;27(3):78-83.

Figures

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Attachments:


hippedestallat.jpg (image/jpeg)


hippedestalap.jpg (image/jpeg)