Myositis ossificans can develop as a complication of poor treatment for a contusion and involves small bony growth inside the muscle. Once a severe muscle strain or contusion is not treated properly, it is likely for myositis ossificans to develop. It is usually due to impact which damages the sheath surrounding the bone called periosteum as well as the muscle.
The bone that grows inside the muscle is called calcification and can be painful. The bone can grow 2-4 weeks after the injury and become mature within 3-6 months.
What are the possible causes?
- Unable to apply cold therapy and compression right after an injury or application of heat early
- Starting intensive physiotherapy or massage early after the injury which increases the bleeding internally and disrupts with healing
- Resuming training after exercise too soon
Pain in the muscle especially during exercise or activity.
What are the indications?
Myositis ossificans usually develops after sustaining a blow or contusion to a muscle, usually in the thigh region. The usual symptoms include the following:
- Pain in the muscle especially during exercise or activity
- Limited range of movement in the leg
- Hard bump or lump can be felt deep in the muscle
In most cases, an X-ray is used to confirm a diagnosis and reveals bony growth.
Management
Once an individual is suspected with myositis ossificans, it is vital to consult a sports injury professional or doctor right away. Conservative treatment is recommended initially which includes rest and immobilization of the affected limb for 3-4 weeks. This will allow time for the body to reabsorb the calcification.
An X-ray of the muscle is done to check if it is safe to start a rehabilitation program that includes strengthening exercises. In severe cases, surgery is performed to get rid of the bony growth.