Received: 10 March 2021
Accepted: 17 September 2021
First Online: 29 September 2021
: Each author certifies that his or her institution approved the human protocol for this investigation and that all investigations were conducted in conformity with ethical principles of research. All patients provided informed consent, and the study has been approved by the Ethics Committee of Xuanwu Hospital, Capital Medical University (approval number: 2017-091). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The patient who experienced symptoms caused by residual loose cement have given her consent for publicate the detailed radiological data of this study.
: The authors declare that they have no competing interests.