Football operations manager, Paul Hamilton, said the club had consulted with a number of specialists before reaching this decision.
""This sort of injury takes time to heal and he will need to rest for around 12 weeks before resuming training,"" he said.
""Obviously it is disappointing for Scott and this is a hard thing for him but people have to remember that he is still just 20-years-old and he is a determined young man.
""Jason Winderlich went through a similar procedure last year and he has recovered and will be playing on Sunday so that will provide a good example for Scott to follow.""
He thanked the many people who have contacted the club with advice and good wishes and said that people's views were listened too and the club took the decision to have surgery very seriously.
""Scott's back problem has been around for the past 18-months and a number of more conservative approaches to address it have been adopted but haven't produced the desired results,"" he said.
""As such, our medical staff and Scott have decided that surgery is the best option.""
The 197cm Gumbleton was taken with pick No.2 in the 2006 National Draft.
