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© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Background and Objectives: Total hip arthroplasty (THA) is considered the most successful surgical procedure in orthopedics. However, dislocation remains the main indication for surgical revision. New designs of dual mobility cups (DMC) have lowered the classical complications and have extended the indications of DMC in elective surgeries. Our aim is to assess the trend of DMC indications in THA as well as the incidence of their dislocation. Materials and Methods: We retrospectively reviewed all patients undergoing THA with DMC during the years 2015 and 2021. The original indication for DMC included patients sustaining neck of femur fractures (NOF#) and associated risk factors for dislocations. Five years later, DMC was considered our standard of care in total hip arthroplasty. The approach (anterolateral or posterolateral) was chosen by the surgeon according to his/her preferences, as was the implant. Data collected included patients’ demographics, diagnosis, admission time, surgical approach, cup models, and inclination and complications. Patients sustaining a hip dislocation were prospectively reviewed and assessed for treatment received, new dislocations, and need for surgical revision. Two groups were created for the analysis according to the presence or absence of dislocation during follow-up. Results: In the analysis, 531 arthroplasties were included (mean age 72.2 years) with a mean follow-up of 2.86 years. The trend of indications for DMC increased from 16% of THA in 2015 to 78% of THA in 2021. We found a total of 8 dislocations (1.5%), none of them associated with elective surgery. Closed reduction was unsatisfactory in four cases (50%). There was one case of intraprosthetic dislocation. Dislocations were associated to smaller heads (22 mm) (1.5% vs. 25%, p = 0.008) and cups (51.2 mm vs. 48.7 mm, p = 0.038) and posterior approach (62.5% vs. 37.5%, p = 0.011). Conclusion: Dual mobility cups are a great option to reduce the risk of dislocation after a THA both in the neck of femur fractures and elective cases. The use of an anterolateral approach in THA after a neck or femur fracture might considerably decrease the risk of dislocation.

Details

Title
Dual Mobility Cups as the Routine Choice in Total Hip Arthroplasty
Author
Aguado-Maestro, Ignacio 1   VIAFID ORCID Logo  ; Inés de Blas-Sanz 1 ; Sanz-Peñas, Ana Elena 1   VIAFID ORCID Logo  ; Campesino-Nieto, Silvia Virginia 1 ; Diez-Rodríguez, Jesús 1 ; Valle-López, Sergio 1 ; Espinel-Riol, Alberto 1 ; Fernández-Díez, Diego 2 ; García-Alonso, Manuel 1 

 Department of Traumatology and Orthopaedic Surgery, Río Hortega University Hospital, 47012 Valladolid, Spain; [email protected] (I.d.B.-S.); [email protected] (A.E.S.-P.); [email protected] (S.V.C.-N.); [email protected] (J.D.-R.); [email protected] (S.V.-L.); [email protected] (A.E.-R.); [email protected] (M.G.-A.) 
 Department of Traumatology and Orthopaedic Surgery, Infanta Sofía University Hospital, 28703 Madrid, Spain; [email protected] 
First page
528
Publication year
2022
Publication date
2022
Publisher
MDPI AG
ISSN
1010660X
e-ISSN
16489144
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2653004817
Copyright
© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.