Cervical paraspinal muscle compartment pressure after laminoplasty: A cadaveric study

Publication date: Available online 22 November 2018Source: Journal of Clinical NeuroscienceAuthor(s): Weerasak Singhatanadgige, Yuttagarn Suebsombut, K. Daniel Riew, Chotetawan Tanavalee, Wicharn Yingsakmongkol, Worawat LimthongkulAbstractAxial neck pain is a common complaint after cervical laminoplasty and the causes are still not well-understood. We hypothesized that abnormal paracervical muscle compartment pressures might be one of them. The cervical paraspinal muscle compartment pressures of 10 cadavers were measured in six different areas under four different conditions. The posterior cervical area was divided into two sides: open side and hinge side. Then each side was divided into upper, middle, and lower areas. The compartment pressures of each area were measured under four different conditions: before and after dissection of posterior paravertebral (paraspinal) muscles, after laminoplasty and after laminoplasty with removal of the spinous processes. There was a statistically significant difference between the pressures after dissection versus after laminoplasty on the hinge side at all upper, middle and lower areas [p < 0.01, <0.001 and =0.009 respectively]. There was a difference in the pressures after laminoplasty between the open and hinge sides [p < 0.001, <0.001 and =0.023 respectively]. We also found the following significant differences: the pressures between before dissection and after laminoplasty on the hinge side, as well as between...
Source: Journal of Clinical Neuroscience - Category: Neuroscience Source Type: research