The Relation Between Spinal Stenosis After Injury And Spinal Cord Injury Of The Thoracolumbar Burst Fracture

Objective:To discuss the correlation between spinal stenosis after injury and spinal cord injury of the thoracolumbar burst fracture.Methods:1,Reviewed the clinical data of the 46 hospitalized patients with thoracolumbar burst fractures in our hospital orthopedic from March 2009 to March 2011 between. Among them, 33 males and 13 females, aged 15 to 56 years, mean age 38 years old, 28 cases of falling from height injury, 4 cases of crushing hit, 14 cases of car hit.2,Thoracic and lumbar spinal canal stenosis and spinal cord function score measurement: measured the most narrow sagittal diameter of spinal canal of injured segments and the spinal canal sagittal diameter of upper and lower vertebrae of injured segments in the CT-chip, thoracic and lumbar spinal stenosis percentage = 1– the injured segments sagittal diameter / (the spinal canal sagittal diameter of upper vertebrae of injured segments +the spinal canal sagittal diameter of lower vertebrae of injured segments)×200%. Spinal cord function were assessed according to Frankel classification, and set the A-5 points, the B-4 points, the C-3 points, the D-2 points,the E 1 point. Calculated the mean and standard deviation of percentage of spinal stenosis and spinal cord function score of T11, T12, L1, L2, L3, and all five segments, and calculated the correlation coefficient between the two, then test the significance.Results:1,46 patients, there were 18 cases of nerve injury (accounting for 39.13% of total cases), of which 2 cases of paraplegia (accounted for 4.34% of total cases), the other with different degrees spinal cord injury 16 cases (accounting for 34.78% of total cases), no nerve injury were 28 cases (accounting for 60.87% of total cases). 46 patients, T11 fracture were 3 cases (accounted for 6.52% of total cases), T12 fracture were 6 cases (accounted for 13.04% of total cases), L1 fractures were 18 cases (accounted for 39.13 of total cases), L2 fracture were 12 cases (accounted for 26.09% of total cases),and L3 fracture in 7 patients (accounted for 15.22% of total cases).2, Calculated the correlation coefficient ( r value) between the two of T11, T12, L1, L2, L3, and all segments were: 0.774, 0.972, 0. 858, 0. 518, 0.618 and 0.757, significantly test (P value) were :0.1