Suffered a fractured fibula and ruptured deltoid ligament that required surgical repair. Are long-term consequences likely?

Anatomic. Not if the repair is anatomic and you didn't suffer an injury to the articular cartilage of the talus at the time of the injury. It's usually impossible to tell if there has been any cartilage damage actutely and if there is it can take decades to be experienced clinically or be seen on plain films.