Sorry to read that younggun - hopefully your son can come back. Hard to go cold turkey though! My oldest did the transposition when he was like 14 or 15 and was able to throw/pitch again in HS. While recovering he helped coach my youngest son's minor division team... Funny to seem him throw BP with the other arm... When my youngest was 14 or 15 he had the decompression surgery... Now he's on the shelf again after having labrum repair surgery this past September (90% tear, anterior). He just "threw" for the first time the other day... Well really not throw - more like elbow on glove and flick the ball using just the forearm - 25 times at 25 feet. Only another 30-40 weeks of rehab.