Here’s the official announcement from the Celtics on Kyrie Irving’s knee surgery:
Celtics guard Kyrie Irving today underwent a minimally-invasive procedure to remove a tension wire in his left knee. The wire was originally placed as part of the surgical repair of a fractured patella sustained during the 2015 NBA Finals. While removal of the wire should relieve irritation it was causing in Irving’s patellar tendon, the fractured patella has fully healed and Irving’s knee has been found to be completely structurally sound. Irving is expected to return to basketball activities in 3-6 weeks.