How is OCD treated?

There are currently two ways to treat OCD, conservative medical treatment or surgical removal of the lesion. Conservative treatment may be indicated for dogs that have early mild symptoms of OCD or where a specific lesion cannot be identified on radiographs. Conservative treatment consists of strict rest for 4 to 8 weeks. Leash walking is permitted but no running or playing is allowed. Anti-inflammatories and painkillers such as carprofen (Rimadyl) may be indicated. In addition, the use of glucosamine/chondroitin products has been suggested, yet there are no current studies that confirm their beneficial use in this particular disease. Conservative treatment may be difficult in young, active puppies who may still need to undergo surgery, if the symptoms do not improve.

Surgery is indicated in animals that show severe symptoms, in cases where large lesions are identified on radiographs or when conservative treatments fail. The surgery is very straightforward. The affected joint is opened and the offending flap, defect, or joint mouse is removed. The prognosis is generally good when the shoulder joint is affected. With other joints, degenerative joint disease (osteoarthritis) is more common. When the elbow is affected, the OCD may contribute to the development of other abnormalities in that joint.

How is OCD prevented?

Prevention consists of careful selective breeding that avoids the breeding of animals with a history of OCD. Young large and giant breed dogs should not undergo strenuous activity, particularly jumping activities. Housing on hard concrete surfaces has been linked to increased OCD lesions in pigs and may also contribute to problems in the dog. Providing a good balanced diet that promotes even, sustained growth is also recommended. Talk to your veterinarian about what is best to feed your dog.

I am going to make a suggestion and it may be considered "outside the box" if you will.
I would try giving pink the supplement MSM Betty, I am sure that you know what this is.
I see this as worth a try as it could help make Pink more comfortable if he is in any pain, but more so because it is a natural anti-inflammatory.
Of course this is more a shot in the dark as to whether it will help Pink or not, but certainly worth a try, as I see it.

Developmental disorders, e.g., hip dysplasia, elbow dysplasia, osteochondritis dissecans , Legg-Perthes disease

Just what does 'must be soft tissue' mean?
What does that encompass?

Has there been more then one set of xrays done? Different angles, exposures, etc?

To me the 'diagnosis' all sounds more then a little namby pamby to me.