Retrospective Study
Copyright ©The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Mar 18, 2016; 7(3): 195-201
Published online Mar 18, 2016. doi: 10.5312/wjo.v7.i3.195
Knee awareness and functionality after simultaneous bilateral vs unilateral total knee arthroplasty
Roshan Latifi, Morten Grove Thomsen, Thomas Kallemose, Henrik Husted, Anders Troelsen
Roshan Latifi, Morten Grove Thomsen, Thomas Kallemose, Henrik Husted, Anders Troelsen, Department of Orthopedic Surgery, Copenhagen University Hospital Hvidovre, DK-2650 Hvidovre, Copenhagen, Denmark
Thomas Kallemose, Clinical Research Center, Copenhagen University Hospital Hvidovre, DK-2650 Hvidovre, Copenhagen, Denmark
Author contributions: Latifi R performed the initial drafting of manuscript; Latifi R and Thomsen MG collected the data; Latifi R, Thomsen MG, Kallemose T, Husted H and Troelsen A performed the data analysis, interpretation, the revision and final approval of manuscript; Thomsen MG, Husted H and Troelsen A designed the study.
Institutional review board statement: According to the national laws, questionnaire surveys and retrospective studies are exempt from obtaining approval from the National Research Ethics Committee (equivalent to IRB) (see Committee Acts at http://www.dnvk.dk/).
Informed consent statement: According to the national laws, it is not required to obtain informed written consent prior to conducting questionnaire surveys. Subjects were sufficiently anonymized and cannot be identified. Data were handled according to the acts of the Danish National Data Protection Agency. The Danish National Data Protection Agency approved this study (AHH-2014-010).
Conflict-of-interest statement: There are no conflicts of interest related to the present study.
Data sharing statement: The technical appendix, statistical code, and dataset associated with the present study are available from the corresponding author at roshan_latifi@yahoo.com. The data used in this study were sufficiently anonymized, and the Danish National Data Protection Agency approved this study (AHH-2014-010).
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Roshan Latifi, MD, Orthopedic Surgery Registrar, Department of Orthopedic Surgery, Copenhagen University Hospital Hvidovre, Kettegaard Alle 30, DK-2650 Hvidovre, Copenhagen, Denmark. roshan_latifi@yahoo.com
Telephone: +45-52-404772 Fax: +45-38-623782
Received: December 11, 2015
Peer-review started: December 14, 2015
First decision: January 4, 2016
Revised: January 9, 2016
Accepted: January 27, 2016
Article in press: January 29, 2016
Published online: March 18, 2016
Processing time: 89 Days and 14.5 Hours
Core Tip

Core tip: We investigated the functional outcomes and knee awareness of patients who had undergone simultaneous bilateral compared with those who had undergone unilateral total knee arthroplasty (TKA). To accomplish this, we used the well-known Oxford Knee Score and the recently introduced Forgotten Joint Score (FJS). The FJS is based on a novel concept, or a patient’s ability to forget about an artificial joint as a result of successful treatment; this result is considered as the ultimate goal of joint replacement surgery. No differences in final outcomes were observed between the groups. Therefore, individuals for whom bilateral TKA is indicated should be offered this option.