Articles | Volume 11, issue 2
https://doi.org/10.5194/jbji-11-139-2026
https://doi.org/10.5194/jbji-11-139-2026
Original full-length article
 | 
04 Mar 2026
Original full-length article |  | 04 Mar 2026

Malnutrition affects infection rates and quality of life in patients undergoing primary hip and knee arthroplasty: a retrospective study

Domenico De Mauro, Chiara Comisi, Valeria Maccauro, Giovanni Balato, Sebastian Meller, Martina Di Martino, Fabiana Arduini, Giulio Maccauro, and Raffaele Vitiello

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Cited articles

Azzolino, D. and Lucchi, T.: Malnutrition in older adults: a wider view, Lancet, 402, 1976, https://doi.org/10.1016/S0140-6736(23)01780-4, 2023. 
Bala, A., Ivanov, D. V., Huddleston, J. I., Goodman, S. B., Maloney, W. J., and Amanatullah, D. F.: The Cost of Malnutrition in Total Joint Arthroplasty, J. Arthroplasty, 35, 926–932.e1, https://doi.org/10.1016/j.arth.2019.11.018, 2020. 
Balato, G., Barbaric, K., Bićanić, G., Bini, S., Chen, J., Crnogaca, K., Kenanidis, E., Giori, N., Goel, R., Hirschmann, M., Marcacci, M., Amat Mateu, C., Nam, D., Shao, H., Shen, B., Tarabichi, M., Tarabichi, S., Tsiridis, E., and Tzavellas, A.-N.: Hip and Knee Section, Prevention, Surgical Technique: Proceedings of International Consensus on Orthopedic Infections, J. Arthroplasty, 34, S301–S307, https://doi.org/10.1016/j.arth.2018.09.015, 2019. 
Blevins, K., Aalirezaie, A., Shohat, N., and Parvizi, J.: Malnutrition and the Development of Periprosthetic Joint Infection in Patients Undergoing Primary Elective Total Joint Arthroplasty, J. Arthroplasty, 33, 2971–2975, https://doi.org/10.1016/j.arth.2018.04.027, 2018. 
Bohl, D. D., Shen, M. R., Kayupov, E., and Valle, C. J. D.: Hypoalbuminemia Independently Predicts Surgical Site Infection, Pneumonia, Length of Stay, and Readmission After Total Joint Arthroplasty, The Journal of Arthroplasty, 31, 15–21, https://doi.org/10.1016/j.arth.2015.08.028, 2016. 
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Short summary
This retrospective study analyzed 682 patients who underwent primary total hip or knee arthroplasty to evaluate the impact of malnutrition on post-operative outcomes. Malnutrition, as defined by the Nutritional Risk Screening 2002 (NRS-2002) and controlling nutritional status (CONUT) scores, was significantly associated with higher rates of post-operative infection and poorer quality-of-life scores. Early nutritional assessment may improve post-operative recovery and reduce complication rates.
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