Hi sirsalamto. My soon he fracture his knee.than...

Actually this depends on the current situation, if the opening is small and doesn’t interfere with its functioning this is ok, but if not it should be removed and be applied again in safe way, because 20 days is not enough for the bone to be united again, so there would be still pain and limitation of movement and there is a risk of mal-union as well.

During the plaster period, patient should try to use his led as well and keep doing visits to the physiotherapy to encourage his healing and prevent muscle atrophy.

You should see a doctor specialized in orthopedic, he would do examination and assessment of the current plaster, he will also require to do Xray for assess the healing process, and sometimes redo the plaster application

visit the orthopedic doctor