He will be named in the Highlanders squad on Wednesday when the rest of New Zealand's franchise squads are officially announced and said he was looking forward to putting a tough year behind him.
Slade said the operation, when it finally came, shouldn't delay his start to the season with Jamie Joseph's team when it kicks off on February 24.
"I hope not, it shouldn't do," he said. "I think once the operation is done, after four weeks I'll be running. I can bike from two weeeks so hopefully I can keep the fitness up. It will be touch and go but I should be fine."
Slade's forced exit from the World Cup came after he watched fellow first-five Dan Carter invalided out of the tournament with a similar injury.
The disappointment also came after he suffered two broken jaws received while playing for the Highlanders this year. That caused him to miss the majority of the season with his new team after he made the trip south from the Crusaders.
Slade's All Blacks replacement, Aaron Cruden, was also struck by injury, falling in the final to a knee injury which forced him to make way for fourth-choice first-five Stephen Donald.
Slade, 24, said the year had gone from bad to worse for him. But despite the recent complication which forced him to delay surgery - and cancel a holiday in the United States - he wanted to stay positive.
It was "just another hurdle", he said. "Hopefully I can get the operation done and move on and look forward to next year."
-APNZ