Case Report
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jun 26, 2021; 9(18): 4760-4764
Published online Jun 26, 2021. doi: 10.12998/wjcc.v9.i18.4760
Minimally invasive removal of a deep-positioned cannulated screw from the femoral neck: A case report
Zhao-Hui Yang, Fu-Shan Hou, Yun-Sheng Yin, Lei Zhao, Xiao Liang
Zhao-Hui Yang, Fu-Shan Hou, Yun-Sheng Yin, Lei Zhao, Xiao Liang, Department of Orthopaedics, Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
Author contributions: Liang X and Zhao L designed the research study; Yin YS performed the research; Yang ZH and Hou FS analyzed the data and wrote the manuscript; All authors have read and approved the final manuscript.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
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: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Fu-Shan Hou, PhD, Associate Professor, Department of Orthopaedic, Second Hospital of Shanxi Medical University, No. 382 Wuyi Road, Xinghualing District, Taiyuan 030001, Shanxi Province, China. houfushan3482@163.com
Received: December 16, 2020
Peer-review started: December 16, 2020
First decision: January 10, 2021
Revised: January 14, 2021
Accepted: April 23, 2021
Article in press: April 23, 2021
Published online: June 26, 2021
Abstract
BACKGROUND

Clinical femoral neck fracture is common. Based on patient age and fracture type, different surgical methods can be selected, including cannulated screw fixation of the femoral neck and artificial total hip joint or semi-hip joint replacement. When patients with femoral neck fracture are treated with cannulated screw fixation, a cannulated screw may be positioned too deep. The excessively deep-placed screw is difficult to remove and causes major trauma to the patient.

CASE SUMMARY

A patient with poliomyelitis and femoral neck fracture was treated with a cannulated screw that was placed too deep. A self-made auxiliary tool (made of a steel sternal wire) was used to remove the cannulated screw near the pelvic cavity.

CONCLUSION

The depth of the cannulated screw can be estimated before screw placement using an improved hollow screwdriver with a scale mark, thus improving the safety of screw placement and facilitating clinical use.

Keywords: Cannulated screw, Excessively deep-position, Femoral neck fracture, Minimally invasive removal, Case report

Core Tip: A patient with poliomyelitis and femoral neck fracture was treated with a cannulated screw that was placed too deep. A self-made auxiliary tool (made of a steel sternal wire) was used to remove the cannulated screw near the pelvic cavity. The depth of the cannulated screw can be estimated before screw placement using an improved hollow screwdriver with a scale mark.