Study design and subjects
fracture
The study conformed to the guidelines of the Declaration of Helsinki and was approved by the Ethics Committee of The Second Affiliated Hospital of Xuzhou Medical University ([2022] 052501), and this study was registered with the Chinese Clinical Trial Testing Center (ID: ChiCTR2200062400,04.08.2022). Written informed consent was obtained from all the subjects participating in the trial. The study plan was to enroll patients beginning in June, but patients were actually recruited between August 2022 and December 2022 after clinical registration. Inclusion criteria: ① Patients with an imaging diagnosis of hip fracture; ② Age ≥60 years old; ③ Dynamic NRS scores ≥4 points; ④ BMI: 18-30 kg/m