Bali Tarun, Kumar Malhar N
Department of Orthopedics, Hosmat Hospital, Bangalore, India.
Asian Spine J. 2015 Oct;9(5):770-5. doi: 10.4184/asj.2015.9.5.770. Epub 2015 Sep 22.
Prospective cohort study.
To evaluate the contribution of upper and lower lumbar segments to flexion and extension of the lumbar spine in normal and diseased spines.
The specific contributions of upper and lower lumbar segments during flexion/extension have rarely been reported. Furthermore, no comparisons between the flexion/extension behaviors of normal and diseased spines have been reported until now.
Flexion and extension lateral radiographs of 52 adult, asymptomatic volunteers, and 67 adult patients with lumbar spine disc disease were measured using software for total lumbar lordosis, upper lumbar lordosis and lower lumbar lordosis and the intervertebral angles of all segments.
In asymptomatic volunteers, the range of movement between flexion and extension was a mean of only 4.2° in the lower lumbar spine and a mean of 19.4° in the upper lumbar spine. In patients with disc degeneration, the range of movement between flexion and extension was an average 6.5° for lower lumbar spine and 15.6° for the upper lumbar spine.
The results showed that upper lumbar spine contributes more to the range of motion in flexion and extension than the lower lumbar spine in asymptomatic individuals without lumbar disc disease, as well as in patients with disc degeneration.
前瞻性队列研究。
评估正常脊柱和患病脊柱中腰椎上段和下段对腰椎屈伸的作用。
腰椎上段和下段在屈伸过程中的具体作用鲜有报道。此外，迄今为止，尚未有关于正常脊柱和患病脊柱屈伸行为的比较报道。
使用软件测量52名成年无症状志愿者以及67名成年腰椎间盘疾病患者的腰椎屈伸侧位X线片，测量指标包括腰椎总前凸、腰椎上段前凸、腰椎下段前凸以及所有节段的椎间角度。
在无症状志愿者中，腰椎下段屈伸之间的活动范围平均仅为4.2°，腰椎上段为19.4°。在椎间盘退变患者中，腰椎下段屈伸之间的活动范围平均为6.5°，腰椎上段为15.6°。
结果表明，在无腰椎间盘疾病的无症状个体以及椎间盘退变患者中，腰椎上段对屈伸活动范围的贡献大于腰椎下段。
