I am sorry to hear about your knee but you need to start doing you insulin and blood testing because you must not be as mobile as normal ans this will have a knock effect with your readings. There may be a need to in case your insulin if you are eating the carbs you would normally eat and the only way to see this is by checking your blood. If you are stressed this can also effect your sugar levels, i would get in contact with your team and tell them what has happened and ask for advice. Running BS to high for a long time can result in keytones which as you know is bad for you, it is now the time to start over again as you do not want your diabetic control to be bad as you recover from your dislocated knee.