WCA where in country are you?
As you commented talus fractures are a different kettle of fish to a tibial plafond (articular) fracture. Type of talus fracture makes a big difference to outcome – Hawkins classification give you more info.
The big problem with any published outcome data/classifications though is they are only population trends – there is still variation.
As a general rule those who want to do well usually do in one fashion or another. Fusion would not be the end of the world if it needed to happen but depends how much function/pain you have when things settled down.
Not sure if that helps!
James