多変量解析を用いた大腿骨近位部骨折の生命予後，機能予後に影響する因子の検討

Multivariate Analysis of Factors Related to Life Expectancy and Functional Outcome after a Proximal Femoral Fracture

　背景：高齢化社会の進行とともに，大腿骨近位部骨折患者は年々増加している．当院で手術を行った大腿骨近位部骨折患者の生命予後，機能予後に影響する因子について検討した．

　対象と方法：2008年4月～2011年3月の3年間で，当院で手術した60歳以上の大腿骨近位部骨折患者106例のうち追跡調査が可能であった74例を対象とした．

　結果：術後1年生存率は89.2％であった．性別と退院時歩行能力が生命予後と有意な関連を認めた．年齢と退院時歩行能力が機能予後と有意な関連を認めた．

　まとめ：退院時歩行能力は重要な予後因子である．

　Background：The numbers of proximal femoral fracture patients in Japan have been increasing annually because of the aging of the population.　The purpose of this study was to identify factors that affect the prognosis and the functional outcome of such patients.

　Methods：We conducted a retrospective review of 74 patients 60 years of age or over who had undergone surgery for a proximal femoral fracture.　The review period extended from April 2008 to March 2011.

　Results：The one-year survival rate was 89.2%.　The significant independent predictors of related to life expectancy were sex and walking ability at the time of discharge.　Age and walking ability at the time of discharge were significant predictors of walking ability after discharge.

　Conclusions：Walking ability at the time of discharge is the most important outcome predictor of the results of surgery for proximal femoral fractures in the elderly.