The koala and joey, nicknamed Lottie and Lucky, were attacked by four dogs in Tallebudgera in early April.
The dogs’ owners called Wildcare Australia, who rushed them to Currumbin Wildlife Hospital (CWH), where they underwent extensive surgery and treatment.
CWH vet nurse Fiona Gunn said the quick actions saved the koalas’ lives.
“It is a remarkable story, she’s a very lucky girl,” she said.
“This really is such a joy today to be able to bring mum and bub back here and release them back into the wild.”
Lottie was suffering extensive defensive injuries when she arrived at the hospital.
“Joey was lucky enough to scoot underneath a fence and didn’t have any injuries,” Ms Gunn said.
“But we’ve been rehabilitating mum for the last three weeks.”
Wildcare volunteer Jan Nilsson said it was good to see the pair back in the wild.
“We have a lot of sad stories where the koalas we pick up don’t make it,” he said.
“So it’s a very good outcome when we actually get to release one.”
However releasing the marsupials back into the wild is a bittersweet moment.
“You feel yourself get choked up,” Ms Gunn said.
“Everybody has really put in such an effort to get them to the point where we can release them.”
The CWH is urging dogs owners to keep their pets inside at night when koalas are out.