My son who is quite a bit younger (2022) ,had TJ surgery last April. We opted for the PRP treatment before surgery. He actually had more pain in his elbow after the PRP treatment than before. A follow up MRI actually shown that the PRP did promote healing of his partial tear but with the pain worst the Dr. recommended surgery. After the surgery the Dr. said he was glad we went with that option because the actual damage was worst than the MRI revealed. 10 months post surgery he has had 0 pain and said his arm feels better than it has in a couple years so all in all a good option for him. One thing I truly believe is the DR. never knows the true extent of the damage until your arm is open... If you opt for surgery I wouldn't wait much longer to do so. After 10.5 mos we are taking it slow but my son is throwing at 80-90% effort. Hopefully the repair is a option for your son, we thought about it but with mine being so young we went for the whole deal.