As a part of the normal aging process, these disks deteriorate, resulting in so-called disk disease. Normally, each disk consists of an outer fibrous ring and an inner gelatinous center (a good analogy would be a jelly doughnut). With age this ring becomes fragmented an the inner "jelly" center hardens to a consistency of hard cheese. The fragmented outer ring may no longer be able to hold this hard center in place, and movement of the vertebrae on either side may suddenly squeeze the disk out of its normal position. Unfortunately, this material usually moves upward and comes to rest against the spinal cord, bruising it in the process. This "slipping" of the disk often occurs explosively, causing significant damage to the spinal cord and pain to the animal. In this abnormal position the disk presses against the spinal cord, causing further damage.
This type of disk disease may occur in dogs and cats of any age or breed but occurs most commonly in the "short-legged" breeds (e.g., dachshund, French bulldog, Welsh corgi, Pekingese) and some other small breeds such as the poodle and cocker spaniel. It may also occur in larger breeds of dog, including Doberman pinschers. The parts of the spine most commonly affected by "slipped" disks are the neck and the middle to lower back. When a disk "slips" out of place and pushes against the spinal cord, it usually causes the animal significant back pain and frequently the damage to the spinal cord interferes with the normal functions of the front and/or rear legs (depending on the location of the disk rupture). In addition to being in pain, the affected dog or cat may be lame, uncoordinated, and/or paralyzed.
These symptoms (pain, incoordination, and possibly paralysis) indicate that the dog or cat has a problem affecting the spinal cord but not the exact location or cause of the problem. Disk disease, a tumor of the spine, or an infection of the spine may all produce similar symptoms. Tests are needed to determine the exact location and cause of the problem and to decide on the appropriate therapy. In order to accomplish this, the patient must be anesthetized for x-rays and collection of fluid from around the spinal cord. "Myelography" is an x-ray study in which a special dye is injected into the fluid surrounding the spinal cord. This then allows any disk material pushing against the cord to be identified on the x-rays. Analysis of the fluid around the spinal cord helps to rule out other causes of the problems such as infection.
In most cases disk disease is a problem requiring surgery to remove the disk material compressing the spinal cord. Occasionally, animals with disk disease are not treated by means of surgery. In these animals, strict cage confinement and immobilization are used. Usually this approach is used for a first bout of back pain in animals that do not have problems walking. Although strict cage confinement does not correct the spinal cord compression, it may temporarily reduce some of the pain and swelling around the spinal cord and permit the ruptured disk to "heal."
As time goes on, it is not uncommon for animals treated without surgery to suffer repeated bouts of pain, lameness, and paralysis as additional disk material slips and compresses the spinal cord. With each bout of disk disease the spinal cord suffers additional permanent damage. Surgical removal of disk material from the spinal canal is the only treatment that provides rapid and maximal recovery of spinal cord function.
Cortisone administration to animals with disk disease is of therapeutic value only during the first 8 hours after the initial spinal cord injury. Current scientific evidence does not support the use of cortisone beyond this time. Furthermore, the adverse effects of cortisone (e.g., stomach ulcers) must always be kept in mind.
The surgery used most frequently to remove disk material from around the spinal cord is called a laminectomy. For animals undergoing a laminectomy, the speed of recovery and the extent to which normal function of the legs is regained depend on many factors, including the degree of the damage to the spinal cord and the length of time that the spinal cord has been compressed by the disk material. Animals exhibiting severe neurologic signs (e.g., depressed feeling in their toes), a rapid onset of symptoms (hours), and a long period of time before surgery generally have a prolonged recovery period and may have varying degrees of permanent damage.
The above is general veterinary information. Do not begin any course of treatment without consulting your regular veterinarian. All animals should be examined at least once every 12 months. Click Here For Over 1000 Natural Solutions To Heal Your Pet At Home! Its Your Pet- Let Her Live A Healthy Life!
World Society For The Protection Of Animals
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