Wynne crashed to the track when three horses were tightened for room at the 200m mark of race 8 of last Friday's meeting.
Wynne was flung from her saddle and trampled by her mount, She's Fun, which left her lying on the track in agony.
''The pain was excruciating,'' she said.
''The surgeon said my knee would have actually dislocated. I was screaming for the [ambulance staff] to hurry up because I didn't know if my leg had snapped or what had happened.''
It was later confirmed the Irish-born jockey had ruptured both her anterior cruciate ligament and her medial collateral ligament.
''It will be three months, I would say, before I would be back riding,'' Wynne said.
The exact amount of time she will be out of the saddle will can not be confirmed until she is further into her recover.
But Wynne is determined to be back in the saddle as quickly as possible.
''I have to get an MRI scan and an X-ray and meet with the surgeon and see what we do next.
''I will do what I can to make this recovery as quick as possible and hopefully come back bigger and stronger.''
Winter can be a quiet time for southern riders, who are often second choice to claiming apprentices on heavy tracks.
But for Wynne the winter was looking like a busy period after being out of the saddle through suspension.
She has recently teamed
up with a new agent in Canterbury commentator Mark McNamara and was looking to do more riding in the Central Districts.
''After my five-week suspension I was putting in the hard graft to try and get on some nice horses and a few of those nice horses are ready to rock and roll.
''Someone said to me 'it's winter, don't worry about it too much', but you enjoy winning as much in the cold as you do when it's warm.''
An inquiry into the incident that led to Wynne's fall is likely to be completed by this weekend.
