9 months ago I had patella femoral replacemnt, deep implant removal and arthroscopy of the meniscus. The first two procedures are fine, however the meniscus has never healed. I will be standing in the kitchen or at work and suddenly with no warning, my knee will buckle and give way. I am very active, so morning walks are important to me, so when I walk a few miles one morning or play a round of golf, the next morning I can barely walk. This is very depressing for me. Them my husband keeps me in tears by throwing in his remarks that his friend had both of his knees done a month before me and he is doing just great. I just do not know what to do next.