Gao Mingjie, Shi Guopeng, He Zhuoqun, Bao Malian, Zhang Kai, Li Jing, Li Feng, Zhu Yong, Li Xiaohe, Wang Haiyan
Department of Human Anatomy，School of Basic Medicine，Inner Mongolia Medical University, Hohhot, Inner Mongolia 010010, China.
Anesthesiology Department, Inner Mongolia Fourth Hospital, Hohhot, Inner Mongolia 010000, China.
Ann Anat. 2025 Jan;257:152344. doi: 10.1016/j.aanat.2024.152344. Epub 2024 Oct 13.
The purpose of this study was to establish an anatomical foundation for minimally invasive lumbar spine surgery in adolescents by assessing the 3D anatomical parameters of the lumbar vertebrae in the age group of 12-21 years.
We collected CT data from 90 adolescents and performed 3D reconstructions using Mimics 16.0 software. The dimensions assessed included the height and sagittal diameter of the intervertebral foramen, as well as the length and widths of the transverse and spinous processes.
The intervertebral foramen height exhibited variation corresponding to the vertebral level, being smallest at L5/S1 and largest at L3/4. The sagittal diameter of the intervertebral foramen increased with age, reaching a minimum at L1/2 and a maximum at L4/5. Significant gender differences were observed in the 12-14 age group, with females exhibiting larger measurements than males. The length and width of the transverse processes were maximal at L3 and L5, respectively. The spinous process length was greatest at L3 and smallest at L5, with notable gender differences present in the 12-14 and 19-21 age groups.
The study reveals that gender and age are significant factors influencing the anatomy of the adolescent lumbar spine, which is essential for the development of minimally invasive surgical techniques. Our findings contribute valuable insights for the design and surgical planning of spinal devices tailored to adolescents.
本研究旨在通过评估12至21岁年龄组腰椎的三维解剖参数，为青少年微创腰椎手术建立解剖学基础。
我们收集了90名青少年的CT数据，并使用Mimics 16.0软件进行三维重建。评估的尺寸包括椎间孔的高度和矢状径，以及横突和棘突的长度和宽度。
椎间孔高度随椎体水平呈现变化，在L5/S1处最小，在L3/4处最大。椎间孔的矢状径随年龄增加，在L1/2处达到最小值，在L4/5处达到最大值。在12至14岁年龄组观察到显著的性别差异，女性的测量值大于男性。横突的长度和宽度分别在L3和L5处最大。棘突长度在L3处最长，在L5处最短，在12至14岁和19至21岁年龄组存在显著的性别差异。
该研究表明性别和年龄是影响青少年腰椎解剖结构的重要因素，这对微创外科技术的发展至关重要。我们的研究结果为针对青少年的脊柱器械设计和手术规划提供了有价值的见解。
