Great question — answering as the UphillTech team:
Of course, it depends on the specifics. On a general level, here are some points to think about: During hiking, you don't really bend the knees that much. It's only the steep parts where you need to bend the knee to sharp angles. If you need to bend the problematic knee for one step, you can usually make an additional small step, and then use the other leg for your high step. Trim your clothes to prevent rubbing. The weather here is warm enough to not require long pants, so use pants which don't cover knees. If it's too cold for that — I don't know. Of course, as mentioned in comments, have a reasonable plan to bail from the route (like always, but more probable in these circumstances)....
Full answer by anatolyg: https://outdoors.stackexchange.com/a/29490 (CC BY-SA 4.0).
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