- What is it?
- Who gets it?
- What are the signs?
- How is it diagnosed?
- Why did this happen to my dog?
- How is it treated?
- Can it be prevented?
- What is the prognosis for my dog?
What Is It?
Tendinopathy means “disease of a tendon.” In this case, it is the disease of the tendon of the supraspinatus muscle. The supraspinatus muscle is responsible for the extension of the shoulder joint. Injury to the tendon of the supraspinatus muscle causes inflammation. Tearing of the tendon fibers and the resulting inflammation can lead to mineralization and calcification of the tendon. The calcium deposits are a source of pain and lameness.
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Who Gets It?
It is most commonly seen in active adult, large breed dogs.
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What Are The Signs?
The most common clinical sign is lameness that gradually worsens throughout the day, with minimal or moderate activity. The degree of lameness depends on the severity of the lesion. The dog will also experience pain in the shoulder, made worse by flexing and internally rotating the affected leg.
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How Is It Diagnosed?
Diagnosis is based on history, clinical signs, and a thorough physical exam. Mineralization of the supraspinatus tendon is often visible on radiographs or using ultrasound. Arthroscopy is the most efficient way to thoroughly examine the joint. It is important to note, however, that the calcifications may not be the sole cause of the lameness, and other orthopedic conditions must be ruled out.
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Why Did My Dog Get This?
Like many other orthopedic injuries, especially of the shoulder, supraspinatus tendinopathy is often a result of overuse or a repetitive strain injury. As the damaged tendon heals, the body’s response is to lay down calcium deposits, causing lameness and pain.
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How Is It Treated?
Acute cases can be medically managed with rest, NSAIDs, and physical therapy, but treatment may need to be repeated. For dogs who do not respond to conservative treatment, surgery may be warranted.
Longitudinal incisions are made in the supraspinatus tendon, and the calcium deposits are removed.
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Can It Be Prevented?
Dogs that participate in strenuous activity, such as working, hunting, or agility dogs should be properly conditioned and “warmed up” before exercise. If your dog sustains an injury during exercise, it is important to seek veterinary treatment immediately. Physical therapy and anti-inflammatories can help limit the damage caused by inflammation. Additionally, weight management is key in preventing orthopedic conditions.
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What Is The Prognosis For My Dog?
Provided this calcification was the cause of the lameness and no other shoulder condition exists, the prognosis is excellent. The dogs usually improve within 2 to 4 weeks and usually totally recover within 6 to 8 weeks.
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