We at the Hannes Lohi Lab (University of Helsinki, Finland) study the genetic factors contributing to shoulder osteochondrosis (OC) in dogs. The study is carried out in collaboration with the University of Helsinki Veterinary Teaching Hospital and the University of Bern.
The study is currently in the sample collection phase. Osteochondrosis is a multifactorial disease, and genetic research requires large sample sizes. Our aim is to collect as large and comprehensive a dataset as possible for genetic studies during 2025–2028.
How to Participate
We welcome samples from all dogs with shoulder imaging. Our sample collection focuses especially on Border Collies. In addition, we are interested in receiving samples from dogs with shoulder imaging from breeds such as the Australian Shepherd, Belgian Shepherds, Labrador Retriever, Dalmatian, and German Shorthaired Pointer.
Samples from both healthy dogs and dogs affected by osteochondrosis are important for the study. We are also interested in mild and atypical changes.
1. Send us a blood sample from your dog. The sample can be taken, for example, during a regular visit to your veterinarian. Please see the instructions via the link below.
2. Send any additional information and attachments by email. These may include veterinary visit records and shoulder radiographs. We especially need the radiographs if they have not been evaluated by the Finnish Kennel Club or INCOC.
3. We also encourage you to fill in the Dog Personality and Behaviour questionnaire. Information about behaviour helps us better understand the background of osteochondrosis. In addition, your dog’s sample can then also be used in behaviour genetics studies.
Contact Persons
Tiina Harmas (tiina.heinonen@helsinki.fi)
Shoulder Osteochondrosis
Shoulder osteochondrosis (OC) is a developmental disorder caused by a disturbance in bone formation under the cartilage in the shoulder joint. It can cause lameness, pain, and swelling of the joint. Clinical signs usually begin at 4–7 months of age. In osteochondrosis dissecans (OCD), a detached piece of cartilage may be found in the joint, for example on radiographs or during endoscopy. Osteochondrosis is a multifactorial disease. Both genetic and environmental factors play a role in its development.

