Specialist facial surgeon John Arvier performed the procedure and was assisted by prominent orthopedic specialist Peter Myers.
Addressing the media on Sunday, Griffin said early results indicated Lockyer's cheek structure was very stable and, if he played on Friday, the risk of further injury would be minimal.
The issue will be whether the swelling and pain eases off enough for him to cope.
"He had surgery at 8.30 this morning and had three metal plates inserted in his cheekbone. The doctor was really happy with the way the surgery went and now it's just a matter of whether he can handle the pain and the swelling as to whether he plays this weekend,"' said Griffin.
"He (surgeon) said the structure of his cheekbone is as solid as it can be and we'll have to see how he recovers during the week."
Asked if he were a betting man, what would be the odds on Lockyer being fit to play, Griffin said: "I think he's a chance.''
Facial specialists have a special headgear mask to protect the cheekbone which they will offer to the Broncos skipper to use.
Griffin said Lockyer will be named in the team and will have the final say.
However, if he doesn't play, either Corey Norman or Ben Hunt will play five-eighth.
Griffin said he may visit Lockyer on Sunday but, at this stage, won't ask him about what he thinks his chances are of playing on Friday.
- AAP