What does ON mean in LABORATORY

Osteonecrosis or avascular necrosis, is a condition where there is death of the bone tissue due to lack of blood supply. This can be caused by trauma, certain medications, alcohol abuse or other medical illnesses.

Symptoms of osteonecrosis typically include joint pain and stiffness, decreased range of motion in affected joints and limp when walking. In some cases, swelling and tenderness of the joint may be present as well as visible deformity if the condition progresses.

Diagnosis for osteonecrosis usually involves a physical exam along with X-rays to confirm the presence and location of dead bone tissue. MRI scans, CT scans and bone scans may also be used in order to determine the extent of damage caused by the condition.

Yes, depending on severity and progression of osteonecrosis, several treatments may be recommended. Non-surgical treatments include bracing or splinting for any severe pain or swelling issues as well as non-steroidal anti-inflammatory medications to reduce inflammation. Surgery may also be recommended in more severe cases in order to stabilize the affected joint(s).

If you have been diagnosed with osteonecrosis it's important to avoid activities that can put added stress on joints especially those that are already affected by the disease such as running and jumping sports. Eating a healthy diet and maintaining an appropriate weight can help prevent further damage caused by this condition.

In most cases there is no specific way to prevent osteonecrosis but there are steps you can take to lower your risk such as avoiding excessive alcohol consumption, limiting drug use (both recreational and medicinal), engaging in regular exercise and maintaining a healthy diet with adequate amounts of calcium rich foods.

Depending on severity and progression of osteonecrisis, long term complications may include reduced joint mobility, increased pain levels and difficulty walking due to changes in limb alignment following destabilization across multiple joints..