Myositis and Tendinitis in Dogs

Myositis is an inflammation or infection of a muscle. Tendinitis is an inflammation or rupture of tendons.

The most cause of myositis in dogs is form penetrating wounds into a muscle. It can also occur from extension of an infection from other nearby tissues, such as a bone infection. Occasionally it is caused by an intramuscular injection.

Signs of Myositis and Tendinitis

Myositis causes pain and swelling of the muscle. if a limb is involved, there is usually lameness. The infection may break through the skin and discharge pus.

Signs may also include pain and stiffness of the affected muscle. If the tendon is ruptured, the muscle cannot function properly.

Treatment of Myositis and Tendinitis

Treatment involves the use of antibiotics. Some cases will require surgical opening and draining of the infected muscle.

Tendinitis and Tendon Rupture

A tendon is a fibrous cord by which a muscle is attached to a bone. These tendons can rupture or become inflamed (tendinitis). Trauma or injury is the most common cause of tendinitis and rupture of tendon.

Diagnosis of Myositis and Tendinitis

The diagnosis is made by the symptoms and a physical examination. Identification of such injuries can be difficult in dogs.

Tendinitis usually responds to rest, pain relievers, and restricted exercise of the affected area. Sometimes, corticosteroids are used. If the injury becomes chronic or the tendon is ruptured, surgical repair will be necessary.