This is Dr Basu, experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
Bone bruise refers to the hematoma formation under the bone surface due to the microfractures and broken blood vessels.
The healing may take 3 to 4 months sometimes even longer.
Complete avoidance of weight bearing is recommended.
That means using crutches.
Also knee immobilization for at least 3 weeks recommended.
There are risks of delayed healing, and also avascular necrosis of the affected area.
That should be checked with repeat MRI scan after 3 months if you still have significant symptoms.
Another surgeon should be consulted with who is more experienced in knee problems.
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