Since you won’t be able to burn as many calories by doing cardio, you can control your portion size and calories consumed to keep you in a caloric deficit. As long as you stay in a caloric deficit, you will lose weight. I recommend logging your food so you know exactly how much you are consuming on a daily basis and weigh yourself weekly. During your weekly weigh-in, if you gained them you need to consume less calories. If you lost you are right where you need to be.
Try incorporating your arm, core and leg workouts in a circuit training so you can burn more calories until you are able to do your regular cardio routine. To continually burn more calories doing the circuit training, you need to manipulate the sets, reps, frequency, type, time and intensity to keep burning more calories.