Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD 21224, USA.
Spine (Phila Pa 1976). 2012 Jun 1;37(13):1138-41. doi: 10.1097/BRS.0b013e31824054a5.
Retrospective review.
To determine the association of patient characteristics and spinal curve parameters with Lenke curve types.
The Lenke curve classification may be used for surgical planning and clinical research.
We retrospectively reviewed the records of 1912 patients with adolescent idiopathic scoliosis who underwent initial surgery at 21 years of age or younger; collected data on patient's age, patient's sex, primary curve magnitude (<50°, 50°-75°, and .75°), and Scoliosis Research Society (SRS) outcomes questionnaire (SRS-22) score; and compared that data by Lenke curve type. Analysis of variance and χ tests were used as appropriate (significance level, P ≤ 0.005). RESULTS.: Lenke types vary by sex: male patients had more major thoracic (types 1-4) than major thoracolumbar/lumbar (types 5 and 6) curves, fewer lumbar C-modifiers (32% vs. 44%), and less apical lumbar translation (1.1 vs. 1.7 cm). Lenke types vary by frequency: the most common type was 1 (50%); the least common, 4 (4%). Lenke types vary by magnitude: type 4 had the greatest percentage of large curves (52% of curves .75°), most smaller curves were types 1 and 5, and type 4 had the largest mean magnitude (78° ± 17°). Lenke types vary by patient age: type 5 curves occurred in the oldest patients (average age at surgery: 15.4 ± 2.2 vs. 14.3 ± 14.6 years for all others) despite having the lowest mean magnitude (P = 0.001); curve size was negatively correlated with age at surgery (r = -0.16, P = 0.001). Lenke types vary by patient self-image: patients with type 4 curves had lower preoperative SRS outcome scores for self-image than did patients with type 1 curves (P = 0.005).
Lenke types vary by sex, frequency magnitude, patient age, and patient self-image, which should be considered in designing studies.
回顾性研究。
确定患者特征和脊柱曲线参数与 Lenke 曲线类型的关系。
Lenke 曲线分类可用于手术规划和临床研究。
我们回顾性分析了 1912 例青少年特发性脊柱侧凸患者的记录，这些患者在 21 岁或以下接受了初次手术；收集了患者年龄、患者性别、初始主弯大小（<50°、50°-75°和.75°）和脊柱侧凸研究协会（SRS）结果问卷（SRS-22）评分的数据；并通过 Lenke 曲线类型进行比较。使用方差分析和 χ 检验（显著性水平，P ≤ 0.005）。结果：Lenke 类型因性别而异：男性患者有更多的主胸弯（类型 1-4），而不是主胸腰/腰弯（类型 5 和 6），较少的腰椎 C 修正器（32%比 44%），更少的顶椎腰椎平移（1.1 比 1.7cm）。Lenke 类型因频率而异：最常见的类型是 1（50%）；最少见的是 4（4%）。Lenke 类型因大小而异：类型 4 有最大比例的大弯（52%的弯.75°），较小的弯主要是类型 1 和 5，类型 4 的平均幅度最大（78°±17°）。Lenke 类型因患者年龄而异：类型 5 的曲线发生在最年长的患者（手术时的平均年龄：15.4±2.2 岁，而所有其他患者为 14.3±14.6 岁），尽管平均幅度最低（P=0.001）；曲线大小与手术年龄呈负相关（r=-0.16，P=0.001）。Lenke 类型因患者自我形象而异：与类型 1 曲线患者相比，类型 4 曲线患者术前 SRS 自我形象评分较低（P=0.005）。
Lenke 类型因性别、频率大小、患者年龄和患者自我形象而异，在设计研究时应考虑这些因素。
