Effects of Auricular Acupressure on Early Postoperative Ambulation Compliance in Elderly Patients with Hip Fracture: a Serial Mediation Analysis of Pain Intensity and Pain Catastrophizing

INTERVENTION: Intervention Group:True auricular acupressure (Shenmen, Sympathetic, Subcortex), applied within 2 hours post‐surgery, self‐pressed 3‐5 times/day, 20 presses per acupoint per time (1‐2 minutes), retained for 3‐5 days;Sham Group:Sham auricular acupressure (central point of ear back, external genitalia, earlobe area), applied within 2 hours post‐surgery, self‐pressed 3‐5 times/day, 20 presses per acupoint per time (1‐2 minutes), retained for 3‐5 days;Usual Care Group:Usual care (including standard analgesia, wound care, complication prevention, and rehabilitation guidance); CONDITION: Hip fracture NC72.Z PRIMARY OUTCOME: First ambulation time;Total number of ambulation within 48 hours;Total duration of ambulation within 48 hours;Completion of Timed Up and Go test on postoperative day 3; SECONDARY OUTCOME: Pain intensity;Pain catastrophizing; INCLUSION CRITERIA: 1.Age =65 years, both genders; 2.Diagnosed with new proximal femoral fracture (including femoral neck fracture, intertrochanteric fracture, etc.) and receiving hip replacement or internal fixation surgery; 3.Able to walk independently or with assistance before the fracture (basic independent walking function before fracture); 4.Postoperative general condition stable, vital signs stable, no severe complications or medical contraindications to ambulation; 5.Conscious, without severe communication disorders, Mini‐Mental State Examination (MMSE) score =24; 6.Preoperative Barthel Inde X=60; 7.igned informed consent by the patient or legal guardian.