Intraoperative periarticular injection can alleviate the inflammatory response and enhance joint function recovery after hip arthroplasty in elderly patients with osteoporotic femoral neck fractures.

[ 20 , 39 ] In the present study, peak values were observed on postoperative days 1 and 4 with a decreasing trend to pre-operative levels by postoperative days 4 and 7 in the PAI and control groups, respectively, which is quite different from the observations in the studies mentioned above.

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