The 112-game veteran injured the wrist playing for Subiaco in the WAFL on Saturday.
It was just his sixth match back after missing the entire 2012 premiership season with a hamstring injury.
Nicoski damaged the scapho-lunate ligament and the surgery has ruled him out for three months, effectively ending his year.
It is a cruel blow for Nicoski who kicked 41 goals for West Coast in the 2011 season before tearing his hamstring off the bone in the 2012 NAB Cup grand final.
