Abnormal Development of the Elbow in Dogs
Elbow Dysplasia in Dogs
Elbow dysplasia is a condition caused by the abnormal growth of cells, tissue, or bone. The condition is characterized by a series of four developmental abnormalities that lead to malformation and degeneration of the elbow joint. It is the most common cause of elbow pain and lameness, and one of the most common causes of forelimb lameness in large and giant-breed dogs. Labrador retrievers, Rottweilers, Golden retrievers, German shepherd dogs, Bernese mountain dogs, chow chows, bearded collies, and Newfoundland breeds are the most commonly affected. The age for onset of clinical signs is typically four to ten months, with diagnosis generally being made around 4 to 18 months.
One type of the condition is more likely to affect males than females: when the bone fragment is located at the inner surface of the upper ulna. The ulna is one of the bones of the foreleg, just below the elbow joint. Otherwise, there are no known gender differences.
Symptoms and Types
The causes are genetic, developmental, and nutritional.
Your veterinarian will want to rule out several possible causes for the symptoms before arriving at a diagnosis. For example, whether there has been trauma to the joint, or whether there is an infection that has brought on, an arthritic condition will need to be explored. A tumor may account for the symptoms, and this possibility will be taken into account as well, with x-ray images taken of the affected area for closer examination. Both elbows will probably need to be x-rayed, since there is a high incidence of disease occurring in both legs. Your doctor may also want to order a computed tomography (CT) scan, or magnetic resonance image (MRI) to look for fragments. A sample of fluid will be taken from the joint with a fine needle aspirate for laboratory testing, and an arthroscopic examination (by use of a tubelike instrument for examining and treating the inside of the joint) may be utilized to help for making a definitive diagnosis.
The term for an animal’s young
The prediction of a disease’s outcome in advance
The male parent of an offspring
Any growth or organ on an animal that is not normal
A condition in which growth and development are not up to normal standards
a) inhaling b) getting out fluid or gas by the act of sucking.
Any female animal that has given birth.
Term used to imply that a situation or condition is more severe than usual; also used to refer to a disease having run a short course or come on suddenly.
Any type of pain or tenderness or lack of soundness in the feet or legs of animals
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