臨床整形外科48巻1号

2013年01月発行

臨床経験

手術時間と人工膝関節置換術後深部感染

著者： 塚田幸行¹ 星野明穂¹ 島谷雅之¹ 吉村英哉¹ 望月智之¹ 池田浩夫¹

所属機関： ¹川口工業総合病院整形外科

ページ範囲：P.77 - P.80

　手術時間の延長は人工膝関節置換術(TKA)後感染の危険因子と考えられるが，これを証明した研究は少ない．同一プロトコルで連続して行った初回TKA541関節を対象とし，これらを感染群と非感染群に分け調査した．両群の年齢，性別，身長，体重，BMI，診断，術前JOAスコアに差はなかった．手術時間は感染群126分，非感染群95分であり，感染群で有意に長かった(p＝0.015，Mann-Whitney U-test)．手術時間の延長はTKA後の感染率に関与しうる．

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