Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns. As per your complain it seems like a soft tissue injury leading to injury to the soft tissues causing inflammation and hematoma formation and there is also releasing of inflammatory exudate,cells , blood and accumulation of damaged fibres and broken blood vessels leading to swelling and pain.. In case if there is not severe pain and you are also able to walk easily then bony fracture does not seems to be an evident cause.. You can also get an x ray done to rule out for bony fracture.. As of now you can take anti-inflammatory painkiller like Ibuprofen for pain,do alternate warm and cool compresses over the swelling to reduce inflammation and swelling, apply heparin gel to fade the bruise faster and elevate your leg while lying down.. In case if bony fracture is ruled out reduction and immobilization will be done by the orthopedician.. Hope this informations helps.. Thanks and regards. Dr.Honey Nandwani Arora..