Su Naichuan, Liu Yan, Yang Xianrui, Luo Zhiqiang, Shi Zongdao
State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, China; Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, China.
State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China.
J Craniomaxillofac Surg. 2014 Oct;42(7):1402-7. doi: 10.1016/j.jcms.2014.04.001. Epub 2014 Apr 18.
To investigate the correlation between clinical dysfunction index (Di) and condylar bony changes, glenoid fossa bony changes and joint space changes.
Clinical data and cone beam computed tomography (CBCT) images of 240 patients with temporomandibular joint osteoarthritis (TMJ OA) were analyzed. The patients were assigned a score of Helkimo's clinical Di ranging from 1 to 25 and thereafter divided into 3 groups by the degree of Helkimo's Di. The condylar bony changes observed with CBCT were graded by the classification method of Koyama et al. Glenoid fossa bony changes and joint space changes were both classified as "positive" or "negative". Spearman's rank correlation test was used to correlate the score or degree of Helkimo's Di with the maximum condylar bony changes, glenoid fossa bony changes, and joint space changes.
There was a significant correlation between the Helkimo's Di score and the maximum condylar bony changes (P ≤ 0.0001) and glenoid fossa bony changes (P ≤ 0.0001), and there was a poor correlation between the Helkimo's Di score and joint space changes (P = 0.184). Furthermore, there was a significant correlation between the degree of Helkimo's Di and the maximum condylar bony changes (P ≤ 0.0001) and glenoid fossa bony changes (P ≤ 0.0001), but there was a poor correlation between the degree of Helkimo's Di and joint space changes (P = 0.346).
Both the score and degree of Helkimo's Di were highly correlated with maximum condylar changes and glenoid fossa bony changes, but not with joint space changes.
探讨临床功能障碍指数（Di）与髁突骨质改变、关节窝骨质改变及关节间隙改变之间的相关性。
分析240例颞下颌关节骨关节炎（TMJ OA）患者的临床资料和锥形束计算机断层扫描（CBCT）图像。患者的Helkimo临床Di评分为1至25分，然后根据Helkimo Di的程度分为3组。CBCT观察到的髁突骨质改变采用小山等人的分类方法进行分级。关节窝骨质改变和关节间隙改变均分为“阳性”或“阴性”。采用Spearman等级相关检验分析Helkimo Di评分或程度与髁突最大骨质改变、关节窝骨质改变及关节间隙改变之间的相关性。
Helkimo Di评分与髁突最大骨质改变（P≤0.0001）和关节窝骨质改变（P≤0.0001）之间存在显著相关性，而Helkimo Di评分与关节间隙改变之间的相关性较差（P = 0.184）。此外，Helkimo Di程度与髁突最大骨质改变（P≤0.0001）和关节窝骨质改变（P≤0.0001）之间存在显著相关性，但Helkimo Di程度与关节间隙改变之间的相关性较差（P = 0.346）。
Helkimo Di的评分和程度均与髁突最大改变和关节窝骨质改变高度相关，但与关节间隙改变无关。
