Abstract
Objective To study of the body mass index on post operative outcome in elderly patients with intertrochanteric fractures with PFNA fixation. Methods The data of 68 elderly patients with intertrochanteric fractures, who received treatment from April 2015 to April 2016 in the second Department of Orthopaedic Wuyi TCM Hospital of Jiangmen Guangdong (the Jiangmen TCM Affiliated Hospital of Ji'nan University) and had complete follow-up data were analyzed restrospectively. According to BMI classification standard, all the patients were divided into 2 groups: 31 patients in obesity group (BMI≥25.0 kg/m2) and 37 patients in non-obese group (BMI<25.0 kg/m2). Perioperative blood loss, pain, postoperative weight-bearing time, postoperative efficacy, hospital stay, fracture healing time and complication were compared between the two groups. Results All 68 patients completed the operation without death or pulmonary embolism. All patients were followed up for 12 to 24 months, with an average follow-up time (18.3 plus or minus 2.4) months. The total blood loss (1057±87) mL in the perioperative period of the obese group was significantly higher than that in the non-obese group (863±69) mL, and the difference was statistically significant (t=17.357, P<0.05). The Harris score of the obese group was 78.4 plus or minus 3.1, and the optimal rate was 75.6%. In the non-obese group (86.1±3.2),the optimal rate was 90.3%,and the score difference was statistically significant (U=3.215, P<0.05). The incidence of postoperative complications was 12.9% (4/31), significantly higher than the non-obese group 8.1% (3/37, χ2=4.470, P<0.05). The obese group began to load time (35±3) d, and later in the non-obese group (9.7±1.5) d, the difference was statistically significant (t=8.928, P<0.05).There was no statistically significant difference between the two groups. Conclusion PFNA is reliable for Intertrochanteric fracture, the posto perative effect of obese people was slightly worse than that of non-obese people. Key words: Body mass index; Proximal femoral nail antirotation; Intertrochanteric fracture; Treatment outcome
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