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Clinical trial Recruiting at 2 sites Observational Ages 18 to 50

Correlation between where the knee tunnels are placed during ACL reconstruction and how well the knee heals

Official title: EVALUATION OF THE CORRELATION BETWEEN BONE TUNNEL PROJECTION PLACEMENT AND CLINICAL OUTCOMES IN ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION SURGERY

Run by Sakarya University · NCT07876635 · Data updated 2026-11-12

This study tests whether the position of the femoral and tibial tunnels during ACL reconstruction relates to how well patients recover.

Quick facts

Study typeObservational
Ages18 Years to 50 Years
SexAll
Enrollment60 (estimated)
SponsorSakarya University
Academic / other
Locations2 sites (Sakarya and 1 other locations)
StatusRecruiting
StartedJune 1, 2026
Main results expectedJanuary 2, 2027
Study endsJanuary 2, 2028
Registry record updatedOctober 15, 2026
Trial IDNCT07876635 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–50 undergoing primary ACL reconstruction with available pre- and postoperative imaging and follow-up.

Probably not a fit

Patients without complete follow-up data or those with additional ligament injuries may not benefit from this study’s conclusions.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study will record surgical details from ACL reconstructions, including tunnel placement and graft characteristics, and relate them to postoperative outcomes. Preoperative knee instability and side-to-side laxity will be measured with objective tools, while postoperative recovery will be tracked using Lysholm and IKDC scores, plus timelines for returning to daily activities and sports. Imaging data (CT/MRI/radiographs) and intraoperative variables will be analyzed to explore associations with clinical and functional results over at least 6 months of follow-up.

Why it matters

Potential benefit: If successful, the findings could help surgeons optimize tunnel placement to improve recovery and function after ACL reconstruction.

How similar studies have gone: Previous research has explored tunnel placement with mixed results, making this observational evaluation a meaningful contribution to the field.

Who can join: the full rules

Show full inclusion / exclusion criteria 
Inclusion Criteria:

Patients aged 18-50 years.

Patients diagnosed with unilateral anterior cruciate ligament (ACL) injury.

Patients scheduled to undergo primary ACL reconstruction.

Patients who are willing and able to complete a postoperative follow-up period of at least 6 months.

Patients with available postoperative radiological assessments, including computed tomography (CT), magnetic resonance imaging (MRI), and/or standard radiographs, as required by the study protocol.

Patients with clinical outcome assessments, including the Lysholm Knee Score and International Knee Documentation Committee (IKDC) score, recorded during the planned follow-up period.

Exclusion Criteria:

Patients with multiligament knee injuries, including clinically significant concomitant posterior cruciate ligament (PCL), medial collateral ligament (MCL), or lateral collateral ligament (LCL) injuries.

Patients with a history of previous non-ACL surgery on the affected knee.

Patients with advanced knee osteoarthritis.

Patients who develop a postoperative infection.

Patients with insufficient or inadequate radiological imaging data for the planned assessments.

Patients who do not complete at least 6 months of postoperative follow-up.

Patients with neuromuscular disorders or systemic connective tissue diseases.

Patients with incomplete or inadequately recorded clinical outcome scores.

Where it's running

  • Sakarya Üniversitesi Eğitim Ve Araştirma Hastanesi
    Sakarya, Turkey (Türkiye)     Recruiting
  • Sakarya Üniversitesi Eğitim Ve Araştirma Hastanesi
    Sakarya, Turkey (Türkiye)     Recruiting

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Anterior Cruciate Ligament Injury 7Sakarya University 15
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.