In America,you can sue if someone spills hot coffee on you in Mcdonalds. So I would think your case would seem legitimate. Call a lawyer for advice,it's usually free. It's probably in your best interest to take pictures,and seek medical advice and get EVERYTHING documented pertaining to injury,or injuries that may occur in later years of your life. Remember whatever you tell the doctor hurts,he writes it down in turn your lawyer has this in your pursuit for personal injury/litigation.
Cheers,best of luck.