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STARR ACL Repair · Self-Check

Is your ACL repairable?

Five short questions, around two minutes. A clinically validated history screen that estimates how likely an ACL injury is, and how much of the STARR repair window is left. Built to support a faster conversation with our team, not to replace one.

  • Validated history screen
  • No personal data needed
  • Around two minutes

How this self-check works

Step 1, when did it happen?

We anchor the screen on the date of injury. Repair only works while the native ligament is still viable, and the window is measured in weeks rather than months.

Step 2, five focused questions

Each question maps to a known clinical signal of ACL injury, from the pop at the time of injury to giving-way episodes and rapid swelling in the first 24 hours.

Step 3, your result

A likelihood estimate plus a window indicator, with the next sensible step for your situation. Only an MRI reviewed by a specialist can confirm an ACL injury.

Is your ACL repairable?

A 2-minute, no-obligation check built on a clinically-validated knee screen. We'll estimate how likely an ACL injury is — and how much of your repair window is left.

  • 1When you were injured — your STARR window
  • 25 quick questions about how it happened
  • 3A clear, personalised next step
Or book a free 15-min discovery call

A guided screening indicator based on a validated history questionnaire — not a diagnosis. Only an MRI reviewed by a specialist can confirm an ACL injury.

Prof Paul LeeReviewed byProf Paul LeeLast reviewed 1 May 2026

What your result tells you

The result is a stratification, not a diagnosis. It points you at the right next step and how urgently to take it.

Window open

Injury inside the first six weeks. A repair such as STARR or BioBrace is most likely to be on the table. Move quickly to imaging so a decision can be made before the tissue starts to retract.

Window closing

Between six and twelve weeks. Repair may still be possible but the assessment needs to happen in days, not weeks. A consultation and an MRI together are the fastest route to clarity.

Designed for

Shared decision-making between you and our team. Final decisions follow imaging and a consultation with Professor Paul Lee, not the result of this screen on its own.

Clinical disclaimer (ACL repair self-check)

The ACL Repair Self-Check uses a validated history-based screen for anterior cruciate ligament injury. It is provided for information and shared decision-making, not as a diagnosis. A high likelihood result on the screen does not confirm an ACL tear, and a low result does not rule one out. Only an MRI reviewed by a specialist can confirm an ACL injury.

The window indicator reflects the typical timing within which a repair such as STARR or BioBrace can preserve the native ligament. Every patient is different and the final decision on whether repair is possible follows a consultation, clinical examination, and imaging review by Professor Paul Lee at London Cartilage Clinic, in line with UK regulatory and medico-legal standards.

What happens next

Move faster than your repair window.

A discovery call is a free fifteen-minute conversation with our team to talk through your result and the practical next step. A consultation with Professor Paul Lee adds imaging and a clinical examination so a decision on repair can be made before the window closes.

Book a free discovery callBook a consultation
  • Free discovery call

    Fifteen minutes, video or phone, with our admin team. Not a medical consultation, just an honest steer on whether STARR fits your situation.

  • Consultation with Professor Paul Lee

    Clinical examination, imaging review, and a clear answer on whether your ACL is repairable and the right timing for surgery if it is.

Explore ACL repair

Keep reading

Every page in the ACL repair hub answers a different question patients ask in clinic.

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