I’m going to guess that this recovery is somewhat similar to a knee replacement.
This is what I post about a knee replacement:
It was major surgery, and your surgeon did major carpentry work and disturbed every millimeter of soft tissue in this area. You aren't tight because your muscle is underused and needs to be stretched and rehabbed. You're tight because your tissue is healing...and full healing takes a full year or more. (I’m not sure, though, if your current recovery can take a year or more, like a knee replacement can, but it wouldn’t surprise me if it might.)
Something to think about.
This is what I post about a knee replacement:
It was major surgery, and your surgeon did major carpentry work and disturbed every millimeter of soft tissue in this area. You aren't tight because your muscle is underused and needs to be stretched and rehabbed. You're tight because your tissue is healing...and full healing takes a full year or more. (I’m not sure, though, if your current recovery can take a year or more, like a knee replacement can, but it wouldn’t surprise me if it might.)
Something to think about.