Pigmented Villonodular Synovitis – Frisco, TX
Pigmented Villonodular Synovitis or PVNS represents a condition that is characterized by the thickening of the synovial tissue. This thin layer of tissue forms a protective lining between the joints. It secretes a synovial fluid that lubricates the joint and protects the articular cartilage from deteriorating. However, in some cases, there is excessive secretion of this fluid resulting in inflammation and pain.

PVSN is a progressive disorder that results in loss of joint function and may lead to in arthritis. It generally affects the knee joint although other body parts may also be affected. People in the age group of 3-40 years are more prone to this condition and it typically affects only one joint. The tumor like formation damages the surrounding bone mass and soft tissues as it grows. PVSN may be categorized as Localized or Diffused depending on the spread of the problem. Localized PVSN results in the formation of a tumor between the tendons and only one particular part of the joint is affected. Diffused PVSN, on the other hand,
is widespread and affects the entire joint.

Causes Of Pigmented Villonodular Synovitis

The exact cause of the development of PVSN has not been established till date. Researchers generally attribute it to some genetic factors that result in these changes within the joint.

Symptoms Of Pigmented Villonodular Synovitis

  • Considerable pain in the joint which is mostly localized
  • A lot of swelling and tenderness may occur
  • The joint feels unstable
  • A constant feeling of ‘joint locking’ may be reported
  • Range of motion is reduced
  • The symptoms prevail for some time and then subside. They reoccur again

Diagnosis Of Pigmented Villonodular Synovitis

  • Detailed physical examination of the affected joint is made and the medical history as well as symptoms of the patient are noted
  • X-ray imaging is required in most cases to assess changes in bone structure
  • MRI scans reveal the location of the modular mass formed by the thickening of the synovial tissue
  • CT scan may be used to get detailed images of the cartilage and other soft tissues
  • Joint aspiration- a syringe may be used to draw out fluid from the joint and it is then tested in the lab
  • Biopsy- a small surgery is conducted to extract a piece of the tumor like growth and it is tested to establish a diagnosis

Treatment For Pigmented Villonodular Synovitis

  • Radiation therapy- the tumor may be destroyed by passing radiation on the joint. This method is generally useful in treating diffused PVNS
  • Joint replacement- in case the damage caused is excessive, the parts of the joint may be replaced using artificial structures as it enhances its life and usability
  • Open surgery- a large incision is made in case the condition has caused damage to both sides of the knee. The synovial lining is completely removed along with the tumor
  • Arthroscopic surgery is used in case if localized PVSN by making 2-3 small incisions to treat the problem