Persistent knee pain along with hyperextension injury should be evaluated by a healthcare professional. It could be due to ligamentous injury, meniscal tear, or patellofemoral pain syndrome. Some rest and pain medications can provide temporary relief.

Acupuncture distal and local points along with Moxibustion and electro stimulation would help a patient dealing with AVN hip pain. Acupuncture helps in increasing the immunity and helps in reducing the after- effect covid symptoms.
Electro acupuncture can also help in increasing the blood flow. 
When the needles are inserted in the body, our body releases natural chemicals to fight the illness or symptom. Hence AVN can be treated with acupuncture combined with medical aid to control severe pain in the hip joint. 
Acupuncture is a boon in AVN to boost up the response and reduce the recovery time taken by patients. It helps in increasing the increases the overall positivity of the patient as the acupuncture sessions advances patients start feeling better and their overall condition improves to a large extent.

Even without swelling, pain can happen due to injury or overuse. Rest your knee, ice it, and elevate it. If the pain doesn't improve in two days, seeing a doctor is wise. Many potential causes exist for knee pain without swelling. Resting, icing, and elevating are good first steps. If the pain persists, seek medical attention.

Let me suggest that you never move any weight on your ankle until it is completely healed. Even slow walking puts too much pressure on the fracture, and it can still cause more injury.Please follow your doctor's advice