Gopetsamerica.com
  Dogs | Cats | Birds | Fish | Horses | Reptiles | Small Pets | Animals | Jobs | Pics | Videos | Garden | Biology | Message Board 
Home » Dog Diseases » Breeds at Risk for Osteochondrosis of the Shoulder
     Search Go Pets America  

Breed Predisposition to Osteochondrosis of the Shoulder

Osteochondrosis (OCD) is a disease characterized by abnormal development of growth cartilage. It occurs commonly in the shoulders of immature, large and giant-breed dogs. The lesion appears on the caudal surface of the humeral head. In some cases, the resulting defect occupies half of the area of the humeral head. The cartilage flap may completely detach from the underlying bone and become lodged in the back of the joint pouch. The causes of OCD are many and include genetic and nutritional factors. Clinical signs often develop when the dog is between 4 and 8 months of age. Dogs usually show a lameness of one forelimb that improves after rest and worsens after exercise. As the condition progresses, the dogs become consistently lame on the affected leg.

Limiting the activity of the dog and treating with non-steroidal anti-inflammatory drugs (NSAIDs) may help some dogs with OCD of the shoulder. A trial period of exercise restriction (brief leash walks only) for a minimum of 6 weeks can be attempted. If lameness resolves, surgery may not be indicated. However, if lameness persists more than 6 weeks, surgical removal of the flap is indicated.

The advantages of knowing which breeds of dogs are at increased risk for osteochondrosis of the Shoulder are evident. It can heighten awareness among breed club members, helping them make decisions about how to spend their foundation dollars, and it can lead to more emphasis being placed on methods to diagnose and genetically screen for the disease in that breed before animals are bred and genes are recycled to the gene pool.

Breeds at Risk for Osteochondrosis of the Shoulder

Risk Factor Breed No. of Cases Controls Odds Ratio* 95% Confidence Interval

Osteochondrosis of the Shoulder
Total 1,242 6,210
Bernese mountain dog 17 6 47.1 26.4–84.0
Border collie 27 30 15.0 9.6–23.3
Bouvier des Flandres 8 11 12.1 5.8–25.4
Boxer 9 67 2.2 1.1–4.5
Bullmastiff 6 15 6.7 2.9–15.5
Chesapeake Bay retriever 6 13 7.7 3.3–17.8
Dalmatian 10 53 3.1 1.6–6.2
English setter 25 41 10.1 6.5–15.9
German shepherd dog 35 284 2.1 1.4–3.1
German shorthaired pointer 12 36 5.5 3.0–10.3
German wirehaired pointer 7 3 38.8 16.7–90.3
Golden retriever 261 344 12.6 10.0–15.9
Great Dane 77 39 32.8 23.8–45.3
Great Pyrenees 18 7 42.7 24.4–74.8
Irish wolfhound 17 6 47.1 26.4–84.0
Kuvasz 7 4 29.1 12.8–66.3
Labrador retriever 308 392 13.1 10.4–16.4
Mastiff 10 14 11.9 6.1–23.2
Munsterlander 5 1 83.1 28.2–245.0
Newfoundland 27 24 18.7 12.0–29.2
Old English sheepdog 15 35 7.1 4.1–12.4
Rottweiler 133 97 22.8 17.4–29.9
Saint Bernard 11 15 12.2 6.4–23.2
Standard poodle 9 57 2.6 1.3–5.3
Mixed-breed dog 90 1,496 1.0
Because only statistically significant ORs are included in the Table, the sum of cases for each disease is not necessarily equal to the total.
References
  1. Breed Susceptibility for Developmental Orthopedic Diseases in Dogs. Elizabeth LaFond, DVM, Diplomate ACVS, Gert J. Breur, DVM, PhD, Diplomate ACVS and Connie C. Austin, MPH, PhD
  2. Osteochondrosis of the Shoulder, Ann Johnson, DVM, MS Diplomate ACVS, The American College of Veterinary Surgeons (ACVS)


 







Disclaimer

 


Pets   Jobs    Contact Us    Terms of Use    Search    Advertise   
©2013 Go Pets America, Inc. All Rights Reserved.