Observational Study
Copyright ©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Aug 18, 2024; 15(8): 764-772
Published online Aug 18, 2024. doi: 10.5312/wjo.v15.i8.764
Coronal plane stability of cruciate-retaining total knee arthroplasty in valgus gonarthrosis patients: A mid-term evaluation using stress radiographs
Pruk Chaiyakit, Pichayut Wattanapreechanon
Pruk Chaiyakit, Pichayut Wattanapreechanon, Department of Orthopaedics, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok 10300, Thailand
Author contributions: Chaiyakit P was the guarantor, designed the study and writing and revised the article critically for important intellectual content; Wattanapreechanon P participated in data acquisition, data analysis, and data interpretation, initial draft the manuscript, and submission process of the manuscript.
Institutional review board statement: This study was reviewed and approved by the institutional review board committee of Navamindradhiraj University (Bangkok, Thailand; COA157/2563).
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: There are no conflicts of interest to report.
Data sharing statement: No additional data are available.
STROBE statement: The authors have read the STROBE Statement—checklist of items, and the manuscript was prepared and revised according to the STROBE Statement—checklist of items.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (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: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Pichayut Wattanapreechanon, MD, Lecturer, Surgeon, Department of Orthopaedics, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Samsen Rd., Dusit, Bangkok 10300, Thailand. pichayut@nmu.ac.th
Received: April 16, 2024
Revised: July 1, 2024
Accepted: July 10, 2024
Published online: August 18, 2024
Processing time: 119 Days and 4.6 Hours
Core Tip

Core Tip: Cruciate-retaining total knee arthroplasty (CR-TKA) for knee valgus osteoarthritis (OA) has been associated with high rates of postoperative tibiofemoral instability. Our study utilized a digital ligament stress device to objectively measure the coronal stability of CR-TKA in patients with knee valgus OA at a mean follow of 3 years and found no significant instability, with a median varus and valgus gap change of < 2 mm. All patients were satisfied with their knee without revision due to instability, loosening, or patellar-related complication. We also describe the step-by-step details of the surgical technique used to ensure good exposure and soft tissue balance.