I'm not professionally trained in any medical field and am offering my knowledge only from my own ORIF experience:

I did not require a cast. I was non WB for 2 months post op. I then progressed to light WB (touch down pressure approx 5-10 pounds) with crutches. Approximately 3 months post op I progressed to cane use. Full WB was resumed 6 months post op and I was authorized to snowboard or run short distances at 7 months post op.

I was in physical therapy from one week after the operation until 9 months post op.

I currently have full range of motion and have returned to full physical activity.