De Quervain’s Tenosynovitis: Causes and risk factors
The cause of tendonitis is the overuse of the thumb with movements of extension, flexion and rotation. A classic example is new mothers, who hold their baby in their arms for many hours and both tendons are under constant pressure, causing them to become inflamed and swollen. De Quervain tendonitis is even more common in almost all manual professions and nurses. In many cases, of course, the exact cause cannot be determined.
De Quervain’s Tenosynovitis: Diagnosis
For the diagnosis of de Quervain tendonitis, the proper history taking and a detailed clinical examination are usually sufficient. The pain is very easily detected by putting pressure just above the tendons in the wrist, while there may be obvious swelling in the area due to edema.
In addition, there is a characteristic test (Finkelstein-Test) where the thumb is pressed towards the palm. If severe pain occurs, then de Quervain’s Tenosynovitis is almost certain.
Radiological examination for de Quervain’s Tenosynovitis is usually not necessary. Only if there is a need to rule out other causes regarding the origin of the pain, an X-ray or MRI scan is required.