Do you have small bone-like bumps in your knee or shoulder, causing pain and swelling? Or is it difficult to bend or straighten a joint? You may also be affected by a condition called Synovial Osteochondromatosis . It's a bit of a long name, so it's hard to say, right? But don't worry, let's talk about it simply.
What is Synovial Osteochondromatosis?
Simply put, this is a condition in which small, non-cancerous lumps (like lumps) form in the thin membrane called the synovium (the membrane that lines the joints) inside our joints. These lumps are made of cartilage. They can range in size from as small as a grain of rice to as large as a marble. For example, these are most commonly seen in our knees, shoulders, elbows, and hip joints. Rarely, this condition can also affect smaller joints like the ankle, wrist, and jaw.
When these lumps float freely inside the joint, they can interfere with joint movement, cause pain, and even damage the joint, leading to a degenerative joint disease called osteoarthritis . If you already have arthritis, this condition can make it worse.
What exactly do these words mean?
Since the name of this disease is a bit complicated, we can gain a better understanding of it if we break it down into its individual words.
- Synovial: This refers to the membrane called the synovium . This is what lines our joints. This membrane produces a lubricating substance called synovial fluid . This fluid is what allows our joints to move smoothly, like oil in a machine. Our joints, bones, and this synovial membrane all belong to our musculoskeletal system .
- Chondro or Chondral: This refers to cartilage . Cartilage is a soft tissue found inside our joints that prevents bones from rubbing against each other. It's like a cushion.
- Matosis or Mitosis: This refers to the cellular changes that occur within a tissue. That is, the abnormal growth of cells.
So, when these words are combined, the name "synovial osteochondromatosis" is formed. The "osteo" part means bone. This means that sometimes these cartilage nodules harden and become like bone. This is called ossification .
Are there other names for this condition?
Yes, sometimes doctors use other names to describe this condition. You may also hear these names:
- Reichel's syndrome: This condition was first described by German surgeon Friedrich Reichel in 1900.
- Reichel-Jones-Henderson syndrome: In the early 1900s, American orthopedic surgeons Hugh Jones and Melvin Henderson further studied and improved medical understanding of this condition identified by Dr. Reichel.
- Synovial chondroma: The medical term "-oma" is used for tumors, whether they are malignant or not.
- Synovial osteochondromatosis: "Osteo" means bone. In this case, the tumor becomes hard like bone (ossification).
Who is most commonly affected by synovial osteochondromatosis? How common is it?
This is a very rare condition . It affects only about one in a million people. It is most common in men between the ages of 30 and 50 .
Are there any varieties of this condition?
Yes, there are mainly two types:
1. Primary synovial chondromatosis: The exact cause of this condition is unknown. It can lead to osteoarthritis .
2. Secondary synovial chondromatosis: This is the most common type. It occurs if you already have a joint condition such as arthritis, osteonecrosis (death of bone due to lack of blood supply) , or osteochondritis dissecans (decomposition of the cartilage and underlying bone) .
How do these lumps form? What is the cause?
A person with synovial osteochondromatosis has an abnormal growth of the synovium , which is a membrane that forms cartilage called nodules . Some people may develop many nodules of varying sizes.
These lumps break away from the synovium and float in the synovial fluid inside the joint. They then calcify , which means they become hard like chalk. Sometimes these lumps even ossify. As these hard lumps move around inside the joint, they damage the cartilage that protects the joint. When this cartilage wears away, the joint surface is exposed, causing painful osteoarthritis. If you have the secondary type, the damage to the joint that already exists can get worse.
What are the symptoms of this?
The symptoms of synovial osteochondromatosis are often similar to those of osteoarthritis. The main symptoms are joint pain and swelling . This pain may worsen when you move the joint.
In addition, you may experience things like:
- You may feel lumps (nodules) under the skin .
- Decreased range of motion of the affected joint (inability to bend or straighten properly).
- Fluid accumulation inside the joint (edema) .
- A "crackling" sound or a feeling of tightness (crepitus) when moving the joint.
- Joints are swollen and painful to the touch.
Where are the symptoms most commonly felt?
Depending on the part of the body affected, you may experience pain in the following areas:
- Ankle pain
- Elbow pain
- Hip joint pain
- Jaw joint pain
- Knee pain (this is the most common)
- Shoulder pain
- Wrist pain
How is this disease accurately diagnosed? (Diagnosis)
To diagnose and treat this condition, you will need to see an orthopedist . He or she is a doctor who specializes in problems related to bones, joints, and muscles. The doctor will examine you and ask about your symptoms.
These loose lumps can usually be detected with an X-ray . However, very small lumps may not be visible on an X-ray. If this happens, you may be asked to have a CT scan or MRI scan to get a clearer picture of the joint.
These scans are very helpful in diagnosing the disease. They can also check for signs of osteoarthritis and fluid buildup in the joint.
What treatments can be done without surgery?
If you have secondary synovial chondromatosis, your doctor may recommend that you wait a while before starting any major treatment. Nonsteroidal anti-inflammatory drugs (NSAIDs) and painkillers can help control symptoms. In the meantime, you may need to have regular scans to monitor the condition of the joint. However, if the joint is severely damaged, surgery may be necessary.
What surgical treatments are available?
Surgery involves removing the lump and removing part or all of the affected synovium (this is called a synovectomy ). After surgery, you will need physical therapy to regain movement and strengthen the joint.
This surgery is often done as an arthroscopic procedure . Arthroscopy is a procedure that involves inserting a camera and small instruments through a few small incisions. This is less painful and leaves less scarring than traditional open surgery. Depending on the location of the problem, arthroscopic surgery can be performed on the knee, shoulder, or other joint.
During arthroscopic surgery, the doctor will:
1. Several small incisions are made in the skin.
2. A small camera device (arthroscope) is inserted through one of the incisions.
3. Surgical instruments are inserted through the other incisions.
4. The surgery and removal of the lumps are performed while watching a video screen.
5. Remove the camera and equipment.
6. The incisions are closed with either dissolvable stitches or a bandage.
What complications can arise from this condition?
This condition increases the risk of joint damage. Very rarely, a free-floating lump can grow very large. It can then occupy the entire joint space or spread to surrounding tissues. In such cases, the joint may appear deformed and the joint may become completely unusable.
Can synovial osteochondromatosis be prevented?
In fact, experts still don't know exactly why this condition occurs in some people. Therefore, there's nothing specific you can do to prevent it from developing.
What is the outlook for someone with this condition? (Outlook)
About one in four people (25%) who have surgery will develop these lumps again. Therefore, your doctor will perform regular scans to check if the joint is getting this condition again.
Also, this condition increases the risk of joint damage and arthritis. Your doctor will continue to monitor you for this as well.
When should I see a doctor?
If you have any of these symptoms, see a doctor immediately:
- If a joint cannot be properly bent or extended (if the range of motion is limited).
- If there is severe pain and swelling in a joint.
- If you hear an unusual "clicking" sound from your joints, or if you feel like they are stuck.
What should I ask my doctor?
You can ask the doctor questions like:
- Why did I develop this synovial osteochondromatosis?
- What is the best treatment for me?
- Do I really need surgery?
- Do I have osteoarthritis? Or, what can I do to prevent it from developing?
- What symptoms should I look out for to see if the cysts are coming back or if other complications are developing?
Can synovial osteochondromatosis become cancerous?
It is very rare for a benign bone tumor like this to become cancerous. However, there have been several cases where this condition has developed into a type of bone cancer called chondrosarcoma .
If you have arthritis or another bone disease, you may be at risk for developing synovial osteochondromatosis. Sometimes, this condition occurs for no apparent reason. If it does, you are at higher risk for developing painful osteoarthritis. Whatever the cause, many people who develop these lumps will need surgery to remove them. You can talk to your doctor about the treatment options that are right for you. After surgery, your doctor will monitor your joints to see if the lumps come back or if there is any damage to the joint.
The most important things to remember (Take-Home Message)
- Synovial osteochondromatosis is a non-cancerous lump that forms in the membrane that covers the joints.
- This can cause symptoms such as joint pain, swelling, and difficulty moving.
- Joints such as the knee, shoulder, elbow, and hip are most commonly affected.
- The disease can be diagnosed through tests such as X-rays, CT scans, and MRIs.
- Often, arthroscopic surgery removes the lump and affected membrane.
- Since some people have a risk of recurrence of the lump, it is important to follow medical advice and have regular checkups.
- If you have any unusual symptoms related to your joints, seek medical advice immediately. The earlier you catch it, the easier it is to treat!
` Synovial Osteochondromatosis, Joint pain, Joint nodules, Cartilage, Osteoarthritis, Arthroscopy, Synovial Osteochondromatosis, Joint pain, Joint nodules, Cartilage, Osteoarthritis, Arthroscopy
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