Tigges S, Pitts S, Mukundan S, Morrison D, Olson M, Shahriara A
Emory University School of Medicine, The Emory Clinic, Atlanta, GA 30322, USA.
AJR Am J Roentgenol. 1999 Apr;172(4):1069-71. doi: 10.2214/ajr.172.4.10587149.
We evaluated the Ottawa knee rules in a high-volume teaching hospital in the United States to determine whether the rules could be safely used to decide whether patients with acute blunt knee trauma should undergo radiography.
During a 13-month period, 378 patients with acute blunt knee trauma were prospectively examined using the Ottawa knee rules. Data collected included the presence or absence of fracture predictors and the results of radiography.
A fracture was seen in 43 (11%) of the 378 patients who met inclusion criteria. The knee rules predicted 42 of the 43 fractures; sensitivity was 98%, and specificity was 19%. Radiography of 65 patients (17%) who had no predictors for fracture could have been avoided if the knee rules had been used to screen for radiography.
The Ottawa knee rules are highly sensitive for fracture in this setting and may safely be used to decide whether patients with acute blunt knee trauma should undergo radiography.
我们在美国一家大型教学医院对渥太华膝关节规则进行了评估，以确定该规则是否可安全用于判定急性钝性膝关节创伤患者是否应接受放射检查。
在13个月期间，对378例急性钝性膝关节创伤患者采用渥太华膝关节规则进行前瞻性检查。收集的数据包括骨折预测指标的有无及放射检查结果。
在符合纳入标准的378例患者中，43例（11%）发现骨折。膝关节规则预测出了43例骨折中的42例；敏感性为98%，特异性为19%。如果使用膝关节规则来筛查放射检查，65例（17%）无骨折预测指标的患者本可避免接受放射检查。
在这种情况下，渥太华膝关节规则对骨折具有高度敏感性，可安全用于判定急性钝性膝关节创伤患者是否应接受放射检查。
