Dr. Pat Connor performed the surgery Thursday at Carolina Medical Center.
"Dr. Connor was pleased with the results of the surgery and Cam is at home resting," head trainer Ryan Vermillion said in a statement. "He will begin his rehab program Monday."
Newton will not be allowed to throw for 12 weeks and won't throw with the team for 16 weeks, according to the Panthers' rehabilitation schedule.
But Newton, the 2015 NFL MVP, will participate in meetings and be on the field for sessions during offseason workouts that begin April 17 as the Panthers evolve the offense to make Newton less a part of the running game out of the read-option.
Team officials expect Newton to be ready to practice when the Panthers report to training camp in late July.
Newton posted on Instagram early Thursday morning:
Newton suffered the injury during a Week 14 win against San Diego. He had an MRI that team officials said was "clean," but they have since revealed there was a partial tear.
Newton was listed on the injury report as limited during the first part of the final three weeks of Carolina's 6-10 season.
Coach Ron Rivera expressed optimism at the NFL owners meeting in Phoenix that Newton would be ready for camp. He also said Newton had to rebuild his confidence after statistically his worst season since Carolina made him the first pick of the 2011 draft.
"It was shook," Rivera said Wednesday. "Let's be honest. I'm not going to lie about that. The young man went through a tough time and we went through a tough time.
"Why? Because of the injuries we incurred on the offensive line. That was probably the biggest thing. It just kind of shows the importance and significance of protecting your quarterback."