6 weeks post orif in lateral malleolus just had cast off, how long ds it need to gain motion without crutches, can compress physio into short period?

Not recomended as -- After the fx has healed, you need to strengthen the muscles and regain the range of motion, as otherwise you'll be hurting. You can shorten the pt time from normal 6 to 4 weeks, but most patients don't do well with shorter timeframe. Good luck.