Without X rays I can be anywhere to walking again in a few weeks to having ligament repair surgery.
I'm no Dr. but I'm pretty sure that they'd have to do a MRI, X-rays don't show tissue damage. However an ortho doc should be able to tell what's torn without the need for a MRI (or x-ray). Expect a lot of pain when they pull/twist your leg while examining you.
In chat you'd asked about a catheter during surgery. I'd never heard of them using those in minor surgeries, however it'd make sense in longer (6-10 hour) ones. Worse I've ever had was them making me wear disposable underwear, however that was because it was an extended surgery. That way in case you piss yourself during surgery you can just toss them after. Depending on the hospital/surgery center they might make you wear their underwear for sanitary reasons though.
I do remember once where the nurse (a guy) told me that I'd have to wear the surgery gown naked. I politely told him to
, my underwear are staying on. Pretty sure he was gay.
BTW you can expect your leg to be shaven.
Also with any injury, don't forget
RICE.
Rest
Ice
Compression
Elevation
Don't underestimate the power of RICE, I credit it to some of the fast recoveries I've had. A bag of frozen peas actually work better than an ice pack. And if you can get one, a cold therapy machine works the best.