S-Lift Implant Guides (also known as S-LIF) || Compressor Part Number: 11-50223 || Product Usage: || Surgical Guides allow a surgeon to place implants into tight spaces, such as a vertebral disc space, without having the implant contact the surrounding bone or tissue. In the case of S-LIFT Implant Guides, they are used to place vertebral bodies into the disc space without the body contacting the superior or inferior vertebrae.