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©2014 Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Jul 18, 2014; 5(3): 180-187
Published online Jul 18, 2014. doi: 10.5312/wjo.v5.i3.180
Published online Jul 18, 2014. doi: 10.5312/wjo.v5.i3.180
Dual mobility cups in total hip arthroplasty
Ivan De Martino, Georgios Konstantinos Triantafyllopoulos, Peter Keyes Sculco, Thomas Peter Sculco, Department of Orthopaedic Surgery, Division of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY 10021, United States
Author contributions: De Martino I, Triantafyllopoulos GK and Sculco PK performed the literature review and drafted the article; Sculco TP revised the article critically for important intellectual content; De Martino I, Triantafyllopoulos GK, Sculco PK and Sculco TP finally approved for print.
Correspondence to: Thomas Peter Sculco, MD, Department of Orthopedic Surgery, Division of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, United States. sculcot@hss.edu
Telephone: +1-212-6061475 Fax: +1-212-7349572
Received: January 6, 2014
Revised: February 21, 2014
Accepted: April 17, 2014
Published online: July 18, 2014
Revised: February 21, 2014
Accepted: April 17, 2014
Published online: July 18, 2014
Core Tip
Core tip: Instability remains a significant issue after both primary and revision total hip arthroplasty. Dual mobility or tripolar unconstrained acetabular components can provide a viable alternative in preventing and treating instability. Reported outcomes of several European studies using dual mobility cups with mid- to long-term follow up support their effectiveness. Concerns such as intra-prosthetic dislocation and accelerated wear have been emphasized, although they seem to be less significant in older, low-demand patients. The use of dual mobility cups in younger patients should be viewed with caution based on a lack of current data concerning this high demand patient population.