Well, ask your Dr how long he will allow recovery before therapy. I had TLIF L5-S1 FUSION WITH CAGE and 21 days he told me to start physical therapy. I told him I wasn't ready. But he insisted. So I went to a physician where a chiropractor took it into his hands and performed accupuncture and electric shock treatment. As a result I can't walk normal nor can I walk more than 5-10 mins. Be clear on his or hers post op plan ok.