Tigerlily...I had the plate removed after one year. I didn't start to run until it was out. I highly recommend removing it. The key to running again is to strengthen the quads, calfs, and hams in BOTH legs. This requires a lot of work, but it’s worth it. Also, tell your OH to go to his surgeon before he starts to run and do two things. 1) get a synvisc injection. This will keep the knee lubricated. 2) Have his surgeon take an x-ray of the meniscus on his good compartment. The surgeon can blow up the image and get a good measurement on the thickness of it. Go back in 6 month intervals to get it x-ray'd again and compare it to the previous x-ray. This will determine how quickly the meniscus is wearing out and if you should back off from running. If you want any more info, feel free to contact me at email@example.com.
I am two years post op from a tibial osteotomy (I'm 53 years old) . I'm back to running now. My last 5k was 20:30. I'm hoping to qulify for the Boston Marathon this year. My longest run has been 17 miles at an 8:00 min pace.