Rottweiler - ED Health Info
Diseases: Elbowjointdysplasie
Elbowjointdysplasie (ED)
by Dr. B. Tellhelm - veterinary specialist in surgery
Surgical Veterinary Clinic, Justus-Liebig University in Giessen
HD / ED-reviewer for the ADRK,
in recent years are becoming more common in dogs than lameness in the forelimb disorders Elbow! diagnosed Enkes.
It is usually a chronic degenerative arthropathy, which have in most cases are caused even in diseases of the joints during growth in young dogs. With growth in the area of the articular surfaces or in the growth areas of the articulating bones leads to inconsistency and / or instabilities that lead to the further course, depending on the severity degrees, more or less significant arthritis.
One of the main diseases that cause these include osteoarthritis: isolated anconeal process (IPA), fragmented (isolated), medial coronoid process of ulna (FPC), osteochondrosis of the medial condyle of the humerus (OCD), Inkonguenz / Stufenbidung and other abnormalities of the articular cartilage.
In 1989, in Davis, California, the International Elbow Working Group (IEWG) founded. The aim of this group is to coordinate worldwide efforts to reduce these diseases: research, dissemination of information. Recommendations for driving of national registers and information on the above mentioned diseases.
Although not medically accurate, these disorders are summarized under the term "elbow dysplasia ED. The members of the IEWG agree that heredity plays a major role in the onset and severity of ED.
Since the underlying diseases often diagnosed too late to be to treat them successfully, and the treatment results are unsatisfactory will be similar to The HD, a breeding selection recommended to have the results on the basis of X-ray screening and its goal is to breed healthy dogs.
The following conditions are met:
The dogs will be at the time of the investigation at least 15 months old. Radiographs one have very good technical quality. The recording format should not exceed the size 18x24. Streustrahlenraster are not necessary.
Make both elbow joints are x-rayed too. From each joint is at least one side (medio-lateral) recording in a flexed position. The angle between the humerus and radius should be about 45 degrees and be the joint orthograde shown.
The photographs are provided with the full details of the dog. This assumes that the dog is labeled accordingly (for example) tattoo. The recordings are archived centrally and to repeal at least 10 years.
The findings will be published to enable breeders and scientifically interested people informed.
The exposure must be chosen so that the overlapping areas of the Proc. anconaeus and head of the radius are to be judged yet.
Verprojizierte and flawed exposed radiographs are not evaluated or developed. Strongly flexed joints can indeed make a better assessment of the proximal contour of the Proc. anconaeus, but are almost always verprojiziert, and the cranial joint section is difficult to assess.
A joint is considered to be abnormal if arthritis or the following underlying diseases are detected radiographically:
Deformed or fragmented Prc. . coron med ulnae FPC
isolated Proc. anconaeus IPA
osteochondrosis of the medial trochlea OCD
incongruent joint surfaces
metaplastic calcification of tendons in the area of the medial epicondyle of the humerus.
The arthritis are classified according to the system practiced for a long time in Sweden as follows:
No evidence of arthritis / extreme case
there is a zone increased bone density (sclerosis) at the distal end of the trochlear notch in the Proc. . coron Latin is recommended these dogs X-rayed after half a year again.
Slight arthrosis / Grade I
new bone with a size below 2 mm at one or more of the following joint sections:
dorsal to the Proc. anconaeus
superiorly radial head
med epicondyle
epicondyle lat
on Proc. . coron med
major, and sclerosis of the trochlear lncisura.
arthrosis Moderate / grade II
new bone with a size 2 to 5 mm in one or more of that in Grade I sites.
Severe Osteoarthritis / Grade Ill
new bone with a size of more than 5 mm on a or more of the above in Grade I sites.
In Sweden, according to this scheme has been assessed more than 20 000 dogs. In dogs with moderate or severe arthritis of the association assumes the assessment costs. The results will go to an owner and breeder association, who will publish it. An exclusion is not farmed. Since, however, rely more and more farmers in their pairings on dogs with healthy joints or with mild degenerative changes in joints, arthritis, the incidence has decreased significantly.
Since 1/8/1996 by order of the Board is the main meeting of April 1996 with the HD is also an ED investigation is required.
In ADRK is evaluated as follows:
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