Ethics approval and consent to participate
This study was approved by the Medical Ethics Committee of Ningbo Medical Center Lihuili Hospital, China (KY2021PJ067), and the protocol was registered at the Chinese Clinical Trial Registry (ChiCTR2000040724) (prospectively registered). The initial registration date was 08/12/2020. All procedures performed in this study involving human participants were in accordance with the Ethical Standards of the Institutional Ethics Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. All patients signed written informed consent before surgery.