角度法评价躯干冠状面失平衡

A New Method for Measuring Coronal Trunk Imbalance Named the Trunk- Axis- Line Angle

目的探讨角度法（TALA）评价躯干冠状面失平衡的可行性和可靠性。方法收集2013年1—12月拍摄x线脊柱全长正位片（包括骨盆）的躯干失平衡患者58例，其中男性16例，女性42例，年龄12～48岁。由A、B两位放射科医师分别独立使用躯干失平衡距离法（C7-CSVL）和TALA进行测量，间隔两周后重复测量1次。采用配对样本t检验法，分别比较两位医师每种方法的两次测量均数值，以及比较每位医师每种方法的测量均数值。结果每位医师采用C7-CSVL法的两次测量结果差异有统计学意义（P〈0．05）；采用TALA法测量的两次测量结果差异无统计学意义（P〉0．05）。两位医师采用C7-CSVL法所得的测量值差异有统计学意义（P〈0．05），采用TALA法所得的测量值差异无统计学意义（P〉0．05）。结论相比较于传统的C7-CSVL法评价躯干冠状面失平衡，TALA法所得数值在不同测量者之间、同一测量者的两次测量结果差异均无统计学意义，可见TALA法评价躯干冠状面失平衡方法简单且可重复性强。

Objective To investigate the feasibility and reliability of a new method for evaluating coronal trunk imbalance, the trunk - axis - line - angle （ TALA）. Methods Totally 58 patients （ 16 men and 42 women ; 12 - 48 years of age） diagnosed with trunk imbal- ance based on full - spine imaging （ including pelvis） from January 2012 to December 2013 were consecutively enrolled in this study. Two radiologists （A,B） used both the C7 - CSVL and the TALA methods respectively and independently to measure trunk imhalanee. The time interval between the two measurements was 2 weeks. A paired - sample t test examined the intraobserver and interohserver difference. Results For C7 - CSVL, there was significantly statistical difference （ P 〈 0.05 ） between the first and second measurement for each ob- server, and no statistical difference was found （P 〉 0.05） for TALA. There was statistically interobserver difference for C7 - CSVL （ P 〈 0.05 ） ,and no significantly interobserver difference was found for TALA （ P 〉 0.05 ）. Conclusion Compared with C7 - CSVI., there wasn＇t significantly intra - and interobserver difference with TALA. Therefore, the TALA method was simple and had excellent reliability for evaluating trunk imbalanee.