Are modern dual mobility cups a valuable option in reducing instability after primary hip arthroplasty, even in younger patients?
Hip instability after total hip replacement has been shown to be a critical cause of failure. The use of dual mobility has been classically restricted to patients "at risk", over 70 years of age. The question rises up about extended indications of so-called "modern" second generation dual mobility cups. This prospective multicenter study reports on first results at 2-5 years of the HA anatomical ADM cup upon two comparative groups of patients under 70 years (112 hips) vs. over 70 years of age (325 hips). No dislocation, migration, tilting, wear, or intra-prosthetic dislocation was recorded within each of the two cohorts. Survivorship for cup failures at this 4-year period was ideal at 100% in the younger patients, and 99.7% in the older group of patients.
Orthopaedic Research and Imaging Center in Arthroplasty Clinique Médico-Chirurgicale 200 rue d'Auvergne, Bruay-Labuissière, France.
Jean-Alain
JA
Epinette
Clinique Bonnefon 45 av Carnot, Alès, France.
Richard
R
Béracassat
Clinique Saint-Roch 235, route des Gordes, Cavaillon, France.
Philippe
P
Tracol
Clinique du Docteur Montagard 23 boulevard Gambetta, Avignon, France.
Gérard
G
Pagazani
Department of Orthopaedic Surgery, Hôpital Européen George Pompidou 20 rue Leblanc, Paris, France.
Eric
E
Vandenbussche
D000077:Acetabulum / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000295:instrumentation*; D005260:Female; D006617:Hip Dislocation / Q000209:etiology / Q000517:prevention & control; D006621:Hip Joint / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007593:Joint Instability / Q000209:etiology / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011475:Prosthesis Failure
ADM; dislocation; dual mobility; hip arthroplasty; instability