Is it possible to lower my gonial angle to 130 degrees or less with jaw implants? (photos)

Hello! I'm a 20 year old male. My gonial angle on both sides is 138-140 degrees. I measured that using a panoramic xray I got for wisdom tooth extractions. Is it possible to lower the angle to 130 degrees or less? My jaw is also narrow and I'd like it to be slightly widened. I am also considering a genioplasty, but I may end up with bimax since my mandible is very undeprojected.