Case Report
Copyright ©The Author(s) 2019. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Nov 6, 2019; 7(21): 3562-3568
Published online Nov 6, 2019. doi: 10.12998/wjcc.v7.i21.3562
Re-revision surgery for re-recurrent valgus deformity after revision total knee arthroplasty in a patient with a severe valgus deformity: A case report
Yin-Qiao Du, Jing-Yang Sun, Ming Ni, Yong-Gang Zhou
Yin-Qiao Du, Jing-Yang Sun, Ming Ni, Yong-Gang Zhou, Department of Orthopedics, General Hospital of Chinese People’s Liberation Army, Beijing 100853, China
Author contributions: Du YQ wrote this paper. Sun JY was responsible for sorting the data. Ni M and Zhou YG designed this case report. Zhou YG performed the operation.
Supported by National Key Research and Development Program of China, No. 2017YFB1104104.
Informed consent statement: Informed consent was obtained from the patients included in this case report.
Conflict-of-interest statement: The authors declare that there is no conflict of interest involved.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscripts was prepared and revised according to the CARE Checklist (2016).
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/
Corresponding author: Yong-Gang Zhou, MD, PhD, Doctor, Department of Orthopedics, General Hospital of Chinese People’s Liberation Army, 28 Fuxing Road, Haidian District, Beijing, 100853, China. ygzhou301@163.com
Telephone: +86-10-66938404 Fax: +86-10-66938404
Received: July 17, 2019
Peer-review started: July 21, 2019
First decision: September 9, 2019
Revised: September 17, 2019
Accepted: September 25, 2019
Article in press: September 25, 2019
Published online: November 6, 2019
Processing time: 113 Days and 15.7 Hours
Abstract
BACKGROUND

A recurrent valgus deformity was a common complication after total knee arthroplasty (TKA) in patients with valgus deformity. However, re-revision surgery for re-recurrent valgus deformity after revision TKA in patients with valgus deformity before primary TKA was uncommon.

CASE SUMMARY

We reported a 72-year-old female patient with two recurrent valgus deformities after TKA for a valgus knee deformity who underwent two revision surgeries to rectify the deformity. In the re-revision surgery, bone defects were successfully reconstructed by the augments and cement in combination with screws and a sleeve. An appropriate neutral alignment of the lower limb was restored by the perfect femoral entry point and the long diaphyseal cementless stem. Adequate fixation of the metaphysis and diaphysis of the femur was obtained by the sleeve and long diaphyseal cementless stem. The patient was pain-free and deformity-free for 2.5 years.

CONCLUSION

The management of bone defects, the choice of the stem and the femoral entry point were of vital importance in the revision or re-revision TKA for a recurrent valgus deformity.

Keywords: Revision total knee arthroplasty; Valgus deformity; Bone defects; Recurrent; Case report

Core tip: Recurrent valgus deformity was a complication of total knee arthroplasty (TKA) in patients with a severe valgus deformity. It is very difficult to perform the revision TKA. The management of bone defects, the choice of the stem and the femoral entry point were of vital importance in the revision TKA.