Abstract：Objective To explore the influencing factors of postoperative functional rehabilitation of proximal femoral nail antirotation (PFNA) in the treatment of elderly femoral intertrochanteric fracture. Methods The clinical data of 220 elderly femoral intertrochanteric fracture who received PFNA surgery in the Third Affiliated Hospital of Beijing University of Chinese Medicine from January 2016 to October 2021 were retrospectively analyzed. The patients were grouped according to the Harris hip score half a year after surgery, in which score ≥80 was divided into the excellent efficacy group and score ＜80 was divided into the average efficacy group. Univariate analysis was performed on gender, age, fracture type, operation time, operation timing, body mass index, and American Society of Aneshesiologists （ASA） grading of the two groups, and multivariate regression analysis was performed on statistically significant indicators, in order to clarify the influencing factors of functional rehabilitation after PFNA treatment of elderly femoral intertrochanteric fracture. Results Univariate analysis showed that there were no significant differences in gender, operation time, and body mass index between the two groups (P＞0.05), but there were significant differences in age, fracture type, operation time, and ASA classification between the two groups (P＜0.05). Logistic multiple linear regression analysis showed that age and operation timing were independent factors affecting functional recovery after PFNA treatment of elderly femoral intertrochanteric fracture (P＜0.05). Conclusion Advanced age and delayed surgery for various reasons will affect the postoperative functional rehabilitation of PFNA in the treatment of elderly femoral intertrochanteric fractures. Therefore, early conditions should be created for the above patients to undergo surgery to improve clinical efficacy.
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