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The ACL Repair vs Reconstruction Study (ACL STARR)

Anterior Cruciate Ligament Stratified Accelerated Repair or Reconstruction Single blind randomised controlled trial for patients with proximal ACL injuries treatment with ACL repair v ACL reconstruction (ACL STARR)

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN24078391
Enrollment
286
Registered
2025-01-30
Start date
2025-07-03
Completion date
Unknown
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior cruciate ligament injuries Musculoskeletal Diseases

Interventions

The ACL STARR study is a randomised controlled trial. Participants will be allocated to either repair or reconstruction surgery at random using a computer. This will enable us to find out which treatm

Sponsors

Cambridge University Hospitals NHS Foundation Trust
Lead Sponsor

Eligibility

Sex/Gender
All
Age
14 Years to 110 Years

Inclusion criteria

Inclusion criteria: 1. Patients aged 14 years and above 2. Willing & able to provide informed consent and comply with study procedures 3. Proximal ACL tear pattern suitable for both repair or reconstruction 4. Willing to accept either study arm allocation

Exclusion criteria

Exclusion criteria: 1. History of major knee surgery: Have had previous knee surgery (other than diagnostic arthroscopy or partial meniscectomy) to the index knee 2. Concomitant severe injury to the contra-lateral knee 3. High grade multi ligament injury: High grade injuries to other ligaments (i.e. medial collateral, lateral collateral, posterior cruciate) in the knee (Grade > 2)

Design outcomes

Primary

MeasureTime frame
Knee Injury and Osteoarthritis Outcome Score (KOOS-4) questionnaire at baseline and 24 months post surgery

Secondary

MeasureTime frame
1. KOOS score is measured using KOOS 5 Questionnaire at 6, 12, and 24 months after randomisation 2. Resource use data is measured using Health Economics Questionnaire and EQ-5DL & -VAS Questionnaire at 6, 12, and 24 months after randomisation 3. Emotional functioning is measured using Emotional Functioning Questionnaire at baseline, 6, 12, and 24 months after randomisation 4. Surgeon confidence is measured using Surgery Case Report Form on the day of surgery 5. Post-operative pain score is measured using Pain NRS at 3 and 6 weeks after randomisation 6. Time to return to sport is measured using Modified Tegner Questionnaire and Tegner Questionnaire at baseline, 6, 12, and 24 months after randomisation 7. Patient satisfaction is measured using Patient Satisfaction Questionnaire at 12 and 24 months after randomisation 8. Intervention-related complications are measured using Health Economics Questionnaire and Case Report Form at 6, 12, and 24 months after randomisation 9. Objective evidence of graft/repair failure is measured using Case Report Form up to 24 months after randomisation

Countries

England, Scotland, United Kingdom, Wales

Contacts

Public ContactJennifer;Nick O'Callaghan;Beale

;

jennifer.ocallaghan@nihr.ac.uk;Nicholas.beale@ndorms.ox.ac.uk+44 1223 768010;+44 1865 613756

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Sep 19, 2026