Hi all, I'm 3 days post-op (bunionette and Morton's neuroma

Hi all, I'm 3 days post-op (bunionette and Morton's neuroma.) I tried the knee scooter yesterday but found the handlebars to be too narrow. My outside arm must reach across my body in order to hold onto the streering column- which tracks over the knee. Does this make sense? I'm wondering if anyone found a more urgonomic solution. Perhaps a handlebar extender?? Thank you!