Soft tissue graded system Muscle and soft tissue<unk> es can be classified using a graded system. * Grade 1 muscle strain is the least severe with damage to few muscle fibers and little if any loss of function. * Grade 2 muscle strain indicates a mild to moderate<unk>  with appreciable tissue damage and some loss of function or strength. * Grade 3 muscle strain is the most severe<unk>  grade with the muscle being either completely torn or experiencing complete loss of function. AO spine<unk>  classification system Spinal column or vertebral<unk> es can be classified using the AO spine<unk>  classification system. The three categories - A, B, and C - are based on the location of damage on the vertebra (either on the anterior or posterior segment) and by the direction of the applied<unk> ous force. * Type A<unk> es are those associated with a compression force with damage to the vertebral bodies. * Type B<unk> es are those associated with a distraction force resulting in structural damage to the posterior components of the vertebral column. * Type C<unk> es are those associated with damage to both anterior and posterior aspects of the vertebral column resulting in displacement of the disconnected segments in any direction. This classification system can be used to classify<unk>  to the cervical, thoracolumbar, and sacral regions of the spinal column. MSU classification for herniated discs Herniated discs can be graded based on the size and location of the herniation as seen on an MRI. Size The size of the herniation is the extent to which it protrudes into the vertebral foramen. The MSU Classification for herniated discs uses the proximity of the disc to the facet joint when measuring the size of a herniated disc. Using the MSU Classification, a grade of 1, 2 or 3 can be used to describe the size of a herniated disc with 1 being the least severe and 3 being the most severe. Location The location of the herniation can also be described using the MSU Classification for herniated discs. This classification describes how far away from mid-line a disc protrusion is using a grade of A, B, or C. * Grade A describes a herniation at midline. * Grade C herniations are the most lateral and protrude into the intervertebral foramen (through which spinal nerves travel). * Grade B herniated discs are those located between grade A and C, using the facet joint as the landmark for the lateral border. MSU Classification is primarily used for classifying herniated discs in the lumbar spine.
Back injury
Back strain
Sprain
Spinal fracture
Spinal disease
Spinal stenosis
Cervical spine disorder
Lumbar disc disease