Proximal tibial condyle fracture.

Hello Doctor, I had a bike accident and fractured left knee tibia approx 50 days ago. Then my doctor put a cylinder cast as the fracture was non displaced. Cast removal done after 1 month and start the phisiotherapy. Then after 45 days doctor allow me to walk with the support of knee immobilizer and crutch. And after 50 days i am still walking for very short time with crutches. Now my question is how many days after i can walk without knee immobilizer and crutches as i have to join my office. Also when i practice walking that time i feel the leg is little weighty. One more question when i will get the full knee range of motion. Now i can sit in chair but still not full range of motion in knee. Attached my x-ray reports. Kindly tell me how is the bone fracture healing and after how many days i can join office as i have to go with public transport. Thanks in advance.