13th International Conference on Fracture June 16–21, 2013, Beijing, China -2- Whereas an incomplete injury, means only part of the spinal cord is damaged. A person with an incomplete injury may have sensation below their lesion but no movement, or vice versa. There are many types in incomplete spinal cord injuries, and no two are the same. Incomplete spinal cord injury can be solving whit the technology used for people with complete paralyses with some simple modifications. Figure 1. Spinal Cord Injury level Quadriplegia is caused by damage to the cervical spinal cord segments at levels C1-D8. Damage to the spinal cord is usually secondary to an injury to the spinal vertebrae in the cervical section of the spinal column. The injury to the structure of the spinal cord is known as a lesion and may result in the loss of partial or total function in all four limbs, meaning the arms and the legs. Because the damage produces loss of control in four limbs, the research proposes the use of the jam and head movements to control the mobility and domotic operation (figure 1.) Typical causes of quadriplegia from damage to the spinal cord are trauma (such as car crash, fall or sports injury), disease (such as transverse myelitis or polio) or congenital disorders, such as muscular dystrophy. It is possible to injure the spinal cord without fracturing the spine, such as when a ruptured disc or bony spur on the vertebra protrudes into the spinal column. 1.2 Symptoms of Quadriplegia Upon visual inspection of a quadriplegic patient, the first symptom of quadriplegia is impairment to the arms and legs. Quadriplegia is defined in different ways depending on the level of injury to the spinal cord. C1–C4 usually affects arm sensation and movement more so than a C5–C7 injury; however, all quadriplegics have or have had some kind of finger dysfunction. That kind of injure do not permit the control with the limb, but with the only move part like head and jam.
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