I didn't watch a lot of House MD but I believe I know what's being referred to.
There was an arc where House was administered ketamine as part of a treatment for his leg and he started walking without his cane, suggesting that his condition was being caused by psychological trauma long after his leg had physically recovered.
There was an arc where House was administered ketamine as part of a treatment for his leg and he started walking without his cane, suggesting that his condition was being caused by psychological trauma long after his leg had physically recovered.