腰椎关节突关节不对称与青少年腰椎间盘突出症

目的:探讨青少年腰椎间盘突出症发生与病变间隙关节突关节不对称性的关系。方法:在CT片上观察并测量24例青少年腰椎间盘突出症患者(年龄13~20岁)26个病变间隙的关节突关节形态及关节突关节角度,并与50例成年患者(年龄30~49岁)60个病变间隙比较。两侧关节突关节形态不同和(或)两侧关节突关节角度之差≥10°定义为关节突关节不对称,比较两组间关节突关节不对称发生率及其与椎间盘突出位置、病理类型的关系。结果:青少年组关节突关节不对称总发生率为57.7%,成年组为10%,两组间比较差异有显著性(P<0.05),关节突关节不对称与椎间盘突出位置、病理类型无关。结论:腰椎关节突关节不对称在青少年腰椎间盘突出症的发生率较高,可能是青少年腰椎间盘突出症发生的原因之一。

Facet joint asymmetry and lumbar intervertebral disc herniation in adolescent

Objective:To study the incidence of facet joint asymmetry in juvenile patients with lumbar disc herniation.Method:The study group consisted of 26 levels in 24 patients aged 13-20 years (juvenile group) and 60 levels in 50 patients aged 30-49 years (adult group).The shape and the angle of facet joints were measured for each by computed tomography.Facet joint asymmetry was defined as the difference in facet joint shape or a difference in facet joint angles greater than 10 degrees between the right and left sides. The incidence of facet joint asymmetry and the relationship among the facet joint asymmetry and the location,or type of disc herniation were examined in juvenile and adult groups.Result:The overall incidence of facet joint asymmetry was significantly higher in the juvenile group (57.7%) than in the adult group (10%;P<0.05). There were no significant relationship among the facet joint asymmetry,the location,or type of disc herniation.Conclusion:The incidence of facet joint asymmetry is significantly higher in the juvenile group,facet joint asymmetry may be one of the etiological factors causing lumbar intervertebral disc herniation in adolescents.