Abstract: Objective: To investigate the current status and influencing factors of sarcopenia in patients with Total Hip Arthroplasty before operation. Methods: A convenience sampling was used to recruit 170 patients who underwent Total Hip Arthroplasty surgery in a tertiary grade A hospital in Henan Province from January 2023 to June 2023. Within 24 hours of admission, the patients were surveyed using a general information questionnaire, a long version of the International Physical Activity Questionnaire, and Nutritional Risk Screening 2022. The occurrence of sarcopenia was diagnosed according to the diagnostic criteria of the 2019 Asian Working Group on Myopenia. Results: The incidence of preoperative sarcopenia in 170 patients with Total Hip Arthroplasty surgery was 20.6%. The results of Logistic regression analysis showed that BMI (OR=0.485), duration of pain OR dysfunction (OR=25.037), level of C-reactive protein (OR=1.064), white blood cells Count (OR=2.511) and preoperative high intensity physical activity level (OR=0.998) were the factors influencing the occurrence of preoperative sarcopenia in patients with Total Hip Arthroplasty (all P<0.05). Conclusion: The incidence of preoperative sarcopenia in patients undergoing Total Hip Arthroplasty is relatively high. Clinical healthcare professionals need to strengthen early assessment and identify high-risk groups for sarcopenia, and timely take targeted measures based on influencing factors to prevent or slow down the occurrence and development of sarcopenia in patients with Total Hip Arthroplasty.

Key words: hip arthroplasty; sarcopenia; influencing factors; nursing care