Anesthesia Technique, Mortality, and Length of Stay After Hip Fracture Surgery
The investigators conducted a matched retrospective cohort study involving patients 50 years or older who were undergoing surgery for hip fracture at general acute care hospitals Of 56 729 patients, 15 904 (28%) received regional anesthesia and 40 825 (72%) received general anesthesia. Overall, 3032 patients (5.3%) died in New York State between July 1, 2004, and December 31, 2011.
To go beyond prior observational studies, they used 2 statistical techniques intended to address selection bias, multivariable matching, and instrumental variable analysis. They hypothesized that regional anesthesia would be associated with improved outcomes compared with general anesthesia.
The near-far matched analysis showed no significant difference in 30-day mortality by anesthesia type among the 21 514 patients included in this match
Regional anesthesia was associated with a 0.6-day shorter length of stay than general anesthesia