Lee Chang-Hyung, Heo Sung Jin, Park So Hyun
Department of Rehabilitation Medicine, Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Daegu 50612, Gyeongsangnam-do, Korea.
Department of Physical Therapy, Youngsan University, Gyeongsan 50510, Gyeongnam-do, Korea.
Healthcare (Basel). 2021 Jan 27;9(2):125. doi: 10.3390/healthcare9020125.
A standard spinal traction (ST) device was designed to straighten the spine without considering physiological lumbar lordosis. Using lordotic curve-controlled traction (LCCT), which maintains the lordotic curve during traction, the traction force would be applied to the posterior spinal structure effectively. Thus, the purpose of our study was to evaluate real-time biomechanical changes while applying the LCCT and ST. In this study, 40 subjects with mild non-radicular low back pain (LBP) were included. The participants underwent LCCT and ST in random order. Anterior and posterior intervertebral distance, ratios of anterior/posterior intervertebral distance (A/P ratio), and lordotic angles of intervertebral bodies (L2~L5) were measured by radiography. Mean intervertebral distances were greater during LCCT than those measured prior to applying traction ( < 0.05). Mean A/P ratio was also significantly greater during LCCT than during ST or initially ( < 0.05). In particular, for the L4/5 intervertebral segment, which is responsible for most of the lordotic curve, mean LCCT angle was similar to mean lordotic angle in the standing position (10.9°). Based on measurements of radiologic geometrical changes with real-time clinical setting, the newly developed LCCT appears to be a useful traction device for increasing intervertebral disc spaces by maintaining lordotic curves.
一种标准脊柱牵引（ST）装置被设计用于拉直脊柱，而未考虑生理腰椎前凸。采用在牵引过程中维持前凸曲线的前凸曲线控制牵引（LCCT），牵引力将有效地施加于脊柱后部结构。因此，我们研究的目的是评估应用LCCT和ST时的实时生物力学变化。在本研究中，纳入了40例轻度非根性下腰痛（LBP）患者。参与者以随机顺序接受LCCT和ST。通过X线摄影测量椎体前后椎间距离、前后椎间距离比值（A/P比值）以及椎体（L2~L5）的前凸角。LCCT期间的平均椎间距离大于牵引前测量值（<0.05）。LCCT期间的平均A/P比值也显著大于ST期间或初始值（<0.05）。特别是对于承担大部分前凸曲线的L4/5椎间节段，平均LCCT角度与站立位平均前凸角度相似（10.9°）。基于实时临床环境下放射学几何变化的测量，新开发的LCCT似乎是一种通过维持前凸曲线来增加椎间隙的有用牵引装置。
