Spinal fusion surgery involves permanently joining two or more vertebrae to stabilize the spine and relieve chronic back pain.

Symptoms may include fatigue, bone pain, muscle weakness, mood changes, and frequent infections.

Treatment involves vitamin D3 supplementation through oral tablets or injections, depending on the severity of the deficiency.

Yes, diets low in vitamin D-rich foods like fatty fish, fortified dairy products, and egg yolks can lead to vitamin D3 deficiency.

Frequency depends on individual risk factors and health conditions. Consult your healthcare provider for personalized advice.

The test involves a simple blood draw with minimal risks, such as slight bruising at the puncture site.

Candidates include individuals with ureteral stones, strictures, tumors, or recurrent urinary tract infections that require direct intervention.