Effects of surgical treatment modalities on postoperative cognitive function and delirium in elderly patients with extremely unstable hip fractures

Figure 2 Orthopedic Physiological and Operative Severity Score for the Enumeration of Mortality and Morbidity scale scores. A: Preoperative physiological scores are significantly lower in the research group than in the control group; B: Surgical severity scores are lower in the research group than in the control group. ^aP < 0.05 and ^bP < 0.01 vs control group. POSSUM: Physiological and Operative Severity Score for the Enumeration of Mortality and Morbidity.