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Tenosynovitis

What is it?

Usually occurs with tendinitis, an inflamation of the fluid-filled sheath (called synovium) that surrounds a tendon. It occurs when the repetitive activity becomes excessive and the tendon sheath can no longer lubricate the tendon. As a result, the tendon sheath thickens and becomes aggravated.

The wrists, hands, and feet are commonly affected. However, the condition may occur with any tendon sheath.

Symptoms

The friction resulting from the excessive repetitive activity causes pain and swelling in both synovium and tendons. This limits movement of the tendons and can cause a squeaking sound as the tendons attempt to move through the smaller space.  Symptoms of tenosynovitis include pain, swelling and difficulty moving the particular joint where the inflammation occurs. When the condition causes the finger to "stick" in a flexed position, this is commonly known as "trigger finger".

Causes

Causes of tenosynovitis are unknown. Repeated use of hand tools can precede the condition, as well as arthritis or injury. Tenosynovitis sometimes runs in families and is generally seen more often in males than in females. Tenosynovitis is also linked to reactive arthritis caused by bacteria.

Treatment

Treatments for tenosynovitis depend on the severity of the inflammation and location. Mild tenosynovitis causing small scale swelling can be treated with anti-inflammatory drugs taken to reduce inflammation and as an analgesic. Resting the affected tendons is essential for recovery; a brace is often recommended.

More acute cases are treated with cortisone (steroid) injections and pain medication. Surgery can be used to enlarge the synovium.

Prevention

• Avoiding repetitive movements and overuse of tendons may help prevent tenosynovitis
• Use of splints and braces for repetitive activities.
• Use Personal Protective Equipment that will provide support during repetitive tasks
• IMPACTO's wrist supports will help to prevent over flexion and over extension of the wrist
• IMPACTO's Thermo Wraps will provide comfort and support for the wrist, elbow, forearm and back.

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