The issue of Tendinitis (with inflammation) or tendinosis (defective healing)?
TW thread including these two publications.
I do not know this Dr in Houston – Dr John Cianca. He wrote a short description of how tennis elbow or other tendon injuries might become chronic after an acute injury and inadequate time off for healing. The time discussed was very brief. I believe that his description is very reasonable and applies to some or most acute tendon injuries.