Iconography Classification And Clinical Significance Of Traumatic Cervical Disc Injury

ObjectiveThrough analyzing clinical data and imaging data of the patients with cervical spine injury which we collected in our wards in this experiment,we proposed a iconography classification and its clinical evaluation of imaging methods of the cervical disc injury in cervical spine trauma.Clinical data obtained from rigorous body inspection included the cervical spinal cord injury.Imaging data included X-ray films, CT films and MRI films,and MRI films were necessary.MethodsWe collected about 100 clinical cases.The cases should meet the criteria as follows:①the acute cervical spine injury between C2～T1;②having symptoms of nerve injury(hypersensitivity is the lightest);③appointments within a month;④The patients who had fracture and dislocation should have the closed skull traction in time. The exclusion criteria was severe brain injury and limb fracture.Cases to meet the requirements should have imaging examination,and imaging data should be preserved by taking photos.We evaluated the imaging data collected,including:①we determined the injury classification of cervical disc injury through accurate analysis;②we determined the Allen classification of cervical spine injury;③we analyzed the relationship between the proposed classification and the Allen classification.We determined the Frankel grade of the spinal cord injury patients by analyzing the data collected.We analyzed the relationship between the proposed classification and the Frankel grade.We applied the SPSS13.0 software to deal with the conversion data.Statistical significance was accepted at the P＜0.05 level. ResultsWe proposed a iconography classification of the traumatic cervical disc injury by analyzing the information from the cases we collected:N-no disc injury(Its subtypes included N-1:no fracture and no dislocation,N-2:simple fracture);IS-in situ disc injury(Its subtypes included IS-1:no fracture and no dislocation,IS-2:simple fracture,IS-3:simple dislocation,IS-4:fracture and dislocation);D-dislocation disc injury(Its subtypes included D-1:simple dislocation,D-2:fracture and dislocation).Conclusion1.The iconography classification of the traumatic disc injury(1) The characteristics of the no disc injury(N):①no fracture and no dislocation in imaging data and no significant shape or signal changes in MRI;②superior to the other types of disc injury in spinal cord injury.(2) The characteristics of the in situ disc injury(IS):①the disc in-situ injury on MRI;②inferior to the N type and superior to the D type in spinal cord injury.Its subtypes included IS-1:no fracture and no dislocation,IS-2:simple fracture, IS-3:simple dislocation,IS-4:fracture and dislocation.(3) The characteristics of the dislocation disc injury(D):①the disc displace from the original location on MRI;②inferior to the N type and the IS type in spinal cord injury.Its subtypes included D-1:simple dislocation,D-2:fracture and dislocation.2.The meaning of the type of disc injuryThe type of the disc injury will help us to determine the degree of cervical spinal cord injury after the cervical spinal trauma.3.The meaning of the separated MR signal changes in cervical discWe could roughly estimate the degree of spinal cord injury and cervical spine instability according to separated MR signal changes in cervical disc.