Radio-ulnar synostosis, unilateral is a rare congenital condition in which the radius and ulna bones of the forearm are fused together on one side of the body. This fusion can cause the forearm to be bent or twisted, and can limit the range of motion of the elbow and wrist. Treatment typically involves surgery to separate the fused bones and restore normal movement.

The main symptom of radio-ulnar synostosis, unilateral is a limited range of motion in the elbow joint. Other symptoms may include:

-Pain in the elbow joint
-Swelling in the elbow joint
-Stiffness in the elbow joint
-Decreased strength in the affected arm
-Decreased range of motion in the affected arm
-Deformity of the elbow joint
-Decreased sensation in the affected arm

1. Trauma: Trauma to the elbow joint can cause the bones to fuse together.

2. Congenital: Radio-ulnar synostosis can be present at birth due to a genetic mutation or abnormality.

3. Infection: Infection of the elbow joint can cause the bones to fuse together.

4. Inflammation: Inflammation of the elbow joint can cause the bones to fuse together.

5. Tumors: Tumors in the elbow joint can cause the bones to fuse together.

1. Surgery: Surgery is the most common treatment for radio-ulnar synostosis, unilateral. The goal of surgery is to restore the normal range of motion of the elbow joint. The surgeon will remove the extra bone and tissue that is causing the fusion.

2. Physical Therapy: Physical therapy can help to improve range of motion and strength in the affected arm. Exercises may include stretching, strengthening, and range of motion activities.

3. Splinting: Splinting can help to keep the elbow in a position that allows for the best range of motion.

4. Occupational Therapy: Occupational therapy can help to improve the ability to perform daily activities. This may include activities such as dressing, eating, and writing.

1. Genetic predisposition
2. Trauma
3. Infection
4. Inflammation
5. Neuromuscular disorders
6. Congenital syndromes
7. Radiation exposure
8. Prolonged immobilization of the elbow joint

Radio-ulnar synostosis, unilateral is a rare condition that is usually treated with surgery. The goal of the surgery is to separate the fused bones and restore normal movement of the elbow. Depending on the severity of the condition, the surgery may involve cutting the bones and inserting a metal plate and screws to hold them in place. After surgery, physical therapy may be recommended to help restore range of motion and strength. Medications such as nonsteroidal anti-inflammatory drugs (NSAIDs) may be prescribed to help reduce pain and inflammation.