How long do I need to walk with crutches after a THP? A How long do I need to walk with crutches after a THP? We strongly recommend walking with 2 crutches the first week after surgery. The following weeks, you can start walking with 1 crutch. As soon as it feels possibile, the patient can walk without crutches. + There are no comments Add yours Cancel replyCommentNameEmailUrl Save my name, email, and website in this browser for the next time I comment.