[Dissociation of a modular acetabular component in an uncemented total hip prosthesis. Effect of the modular design and anti-luxation rim. A case report].
We report a case of dissociation between polyethylene and metal-backing of the acetabular component of a total hip prosthesis after reduction of a late dislocation. We refer to advantages and disadvantages of an elevated-rim acetabular liner in total hip arthroplasty. The position of the metallic markers of the polyethylene and/or excentric situation of the neck-head complex from the metal-back allowed us to diagnose it. An appropriate surgical technique avoiding the joint laxity, firm assembly of the modular components when they are implanted, gentle reduction of an eventual dislocation and fluoroscopic control, are factors which can avoid this rare complication.
Blanco Blanco
J
J
Service de Traumatologie et de Chirurgie Orthopédique, Hôpital Virgen de la Vega, Salamanque, Espagne. jblanco@slm.servicom.es
Tapia Casado
L
L
Ramos Galea
R
R
Léon Vasquez
F
F
D005260:Female; D005471:Fluoroscopy; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D007430:Intraoperative Care / Q000379:methods; D007593:Joint Instability / Q000000981:diagnostic imaging* / Q000209:etiology* / Q000517:prevention & control; D008349:Manipulation, Orthopedic / Q000379:methods; D008875:Middle Aged; D011095:Polyethylenes; D011474:Prosthesis Design; D011475:Prosthesis Failure
D011095:Polyethylenes
Dissociation du composant acétabulaire modulaire d'une prothèse totale de hanche non scellée. Effet de la modularité et du rebord anti-luxation. A propos d'un cas.