Hi, Welcome to Health care magic forum. As you said there is some wrong with the surgeons procedure,and it might got infected hence resulted in swelling and pain. I advise you to consult an orthopedic surgeon for diagnosis and treatment. You may need to have an M.R.I, FOR diagnosis and treatment. Take more of green leafy vegetables, pulses, sprouts,and protein rich foods to hasten the recovery. Wishing for a quick and complete recovery. Thank you.