What's here
ACL basics
What the ACL does, how it tears, and what happens during reconstruction surgery — in plain language.
Read more →Graft types
Not all replacement ligaments are the same. Learn the difference between hamstring, patellar tendon, quad tendon, and donor grafts.
Read more →What is an LET?
The lateral extra-articular tenodesis (LET) is an extra stabilizing procedure. Find out what it is, when it helps, and what the research says.
Read more →How the tool works
The interactive tool asks you 11 questions in plain patient language — one at a time, on any device. Every question includes an "I don't know" option, so you never have to guess. Each answer adds or does not add points based on the strength of published research linking that factor to whether an LET is likely to help. When you finish, the tool places your answers into one of three result categories and shows you exactly which answers pushed the result in each direction. No matter which category you land in, the result always ends by telling you to discuss the findings with your surgeon — because only your surgeon can weigh your full picture. Nothing you enter is sent anywhere or saved; everything runs inside your browser and disappears when you close the page.
Who built this
This site was written by an orthopedic sports medicine surgeon as educational material for patients preparing to discuss ACL reconstruction. It is not affiliated with any hospital, device company, or product. All algorithm factors trace to peer-reviewed, published research. The tool is meant to inform conversations — not replace them.