Author(s)

Taizo Kaneko^*, Kyoko Matsudaira, Kentaro Hayakawa, Fumiaki Tokimura, Tsuyoshi Miyazaki

Department of Orthopaedic Surgery, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.

Background: The incidence of femoral intertrochanteric fractures in older adults is higher than that of femoral neck fractures; however, both conditions are often analyzed together as proximal femoral fractures. Considering the difference in treatment, postoperative complication, and mortality risk, these two fractures should be analyzed separately. This study aimed to analyze 1-year mortality and its risk factors in patients with surgically treated femoral intertrochanteric fractures. Methods: Consecutive patients with intertrochanteric fractures who underwent surgical interventions at our institution between January 2017 and December 2021 were retrospectively reviewed. A total of 238 patients were eligible for inclusion in this study. Patients’ demographic and clinical information were retrospectively collected. Patients were divided into the 1-year mortality (n = 16) and survival (n = 222) groups. The incidence of 1-year mortality and its independent risk factors were investigated using univariate and multivariate logistic regression analyses. Results: The mean age of patients was 85.6 ± 8.5 years. The 1-year mortality rate was 6.7% (16/238). Preoperative albumin level, the Geriatric Nutritional Risk Index (GNRI), and malnutrition status (GNRI < 92) were significantly different between the two groups (p = 0.02, p = 0.02, and p = 0.0011, respectively). Multivariate analysis showed that malnutrition status (GNRI < 92; odds ratio, 2.1; 95% confidence interval, 0.0037 - 0.62; p = 0.035) was an independent risk factor for 1-year mortality. Conclusion: Malnutrition status assessed using GNRI (GNRI < 92) was an independent risk factor for 1-year mortality. Our findings suggest that GNRI may be an effective screening tool for predicting postoperative 1-year mortality of patients with surgically treated femoral intertrochanteric fractures.

Intertrochanteric Fracture, Mortality, Geriatric Nutritional Risk Index, Malnutrition, Risk Factor

Kaneko, T. , Matsudaira, K. , Hayakawa, K. , Tokimura, F. and Miyazaki, T. (2024) Malnutrition and Its Association with the Mortality of Patients with Femoral Intertrochanteric Fractures: A Retrospective Analysis of Japanese Patients. Open Journal of Orthopedics, 14, 22-31. doi: 10.4236/ojo.2024.141003.