Isla has returned to start the previous two Serie A games and he said that the patience shown with him by the club has meant a lot.
"I had a nasty injury and everyone here at Juventus has been very patient in waiting for me," FourFourTwo quotes Isla as saying.
"I have always given my all, but I need to continue working hard to repay people for the faith they have shown.
"Antonio Conte decided that I would stay at this club and I'm happy to be here, but I need to show that on the field of play."
Isla, who joined Juve from Udinese last summer, has won 41 caps for Chile.