Loose bodies are fragments of detached cartilage or bone inside the knee joint. These fragments may be free floating (unstable) or may be trapped (stable) within the joint. Depending on the severity, you may have one or more loose bodies in your knee joint.
You may develop loose bodies in the knee if:
You may experience the below symptoms if you have loose bodies in the knee.
Left untreated, loose bodies may damage the articular cartilage resulting in osteoarthritis.
Your doctor may ask questions about your health, both past and present, and follow-up with a physical examination of your knee.
Imaging tests of the knee are ordered such as:
This helps your doctor determine how severe your condition is and the kind of treatment you would need.
It is important to treat the condition early to prevent cartilage damage. In less severe cases, non-surgical options such as physical therapy and anti-inflammatory pain medications may help to keep your knee joint flexible. However, in most cases, surgical removal of the loose bodies is required.
The surgery of choice in most cases is knee arthroscopy (“clean out” arthroscopy). It is a minimally invasive surgery and typically results in fewer complications. It further allows your doctor to asses any damage to the cartilage and to repair the condition. It is best suitable for removing smaller loose bodies.
Large loose bodies that cannot be removed via arthroscopy are treated by open surgery or arthrotomy. However, this is rare.
Following surgery, a rehabilitation program may be required to restore movement and strength to the knee.