The Role of Dual-Mobility Components in Total Hip Arthroplasty.

Autor:	Manson TT; Department of Orthopaedic Surgery, University of Maryland, Baltimore, Maryland., Adrados M; Department of Orthopaedic Surgery, Virginia Tech Carilion School of Medicine, Roanoke, Virginia.; Department of Orthopaedic Surgery, Carilion Clinic Institute of Orthopaedics and Neurosciences, Roanoke, Virginia., Gililland JM; Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah., Mahmood BM; Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah., Samuel LT; Department of Orthopaedic Surgery, Carilion Clinic Institute of Orthopaedics and Neurosciences, Roanoke, Virginia., Moskal JT; Department of Orthopaedic Surgery, Virginia Tech Carilion School of Medicine, Roanoke, Virginia.; Department of Orthopaedic Surgery, Carilion Clinic Institute of Orthopaedics and Neurosciences, Roanoke, Virginia.
Jazyk:	angličtina
Zdroj:	The Journal of bone and joint surgery. American volume [J Bone Joint Surg Am] 2023 Feb 01; Vol. 105 (3), pp. 250-261. Date of Electronic Publication: 2022 Dec 06.
DOI:	10.2106/JBJS.22.00185
Abstrakt:	➤: Dual mobility (DM) refers to a now widely available option for total hip articulation. DM implants feature a small inner head, a hard bearing, that connects via a taper fit onto the femoral trunnion. This head freely rotates but is encased inside a larger, outer polyethylene head that articulates with a smooth acetabular component. ➤: DM acetabular components are available in the form of a monoblock shell or as a liner that is impacted into a modular shell, providing a metal articulation for the polyethylene outer head. ➤: DM is designed to increase hip stability by providing the arthroplasty construct with a higher jump distance, head-to-neck ratio, and range of motion prior to impingement. ➤: The use of DM in total hip arthroplasty continues to increase in the United States for both primary and revision arthroplasty. Surgeons should be aware of the potential benefits and pitfalls. ➤: Long-term data are lacking, especially for modular DM implants. Points of concern include a potential for accelerated polyethylene wear, intraprosthetic dislocation, and modular backside fretting corrosion. Competing Interests: Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article ( http://links.lww.com/JBJS/H349 ). (Copyright © 2022 by The Journal of Bone and Joint Surgery, Incorporated.)
Databáze:	MEDLINE
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