Comparative Study of the Inclination Angle and Complications of Eccentric Grafts Position in ACL Reconstruction and Normal ACL: Retrospective Cohort

Study Overview
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Brief Summary
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The anatomic ACL reconstruction aims at functional restoration of the ACL to its native dimensions, collagen orientation and insertion sites. Even if the anatomic foot prints are correctly chosen for the tibial and femoral tunnels does the position of interference screw in the tibial tunnel alter the ACL orientation? The study hypothesized that the position of interference screw in the tibial tunnel would alter the graft orientation in anatomic ACL reconstruction. The purpose of this study was to compare graft orientation and inclination angle with posterolateral and anteromedial interference screw position in tibial tunnel in aperture fixation techniques.

Official Title
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Comparative Study of the Inclination Angle and Complications of Eccentric Grafts Position in ACL Reconstruction and Normal ACL: Retrospective Cohort

Conditions
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Anterior Cruciate Ligament Injuries

Intervention / Treatment
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* Procedure: Interference screw


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: magnetic resonance imaging (MRI) of patients with ACL reconstruction was compared to MRI in which ACL was intact. patients with isolated ACL injury who underwent ACL reconstruction surgery using quadripled hamstrings graft and operated by a single senior surgeon Both pre-operative and post-operative MRI should be available for assessment No history of trauma in the post-operative or rehabilitation period Exclusion Criteria: Concomitant bony or other ligament injury to the same knee history of previous surgery to the same knee Revision ACL reconstruction surgery surgery done at other center or by other doctors at our institute Pre-operative and/or post-operative MRI not available

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: Anterior cruciate ligament normal<br>normal Anterior cruciate ligament reconstruction | Procedure: Interference screw<br>* Anterior cruciate ligament reconstruction (anterior screw fixation or posterior screw fixation)<br>|
| Experimental: Anterior cruciate ligament reconstruction<br>Anterior cruciate ligament reconstruction and Position screw fixation | Procedure: Interference screw<br>* Anterior cruciate ligament reconstruction (anterior screw fixation or posterior screw fixation)<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Inclination angle | Mean anterior cruciate ligament inclination angle in sagital x-ray (degree) | 6 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| post-operative complications | number of participants with revision, infection, reflex sympathetic dystrophy and re-rupture | 6 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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ACL, screw fixation, graft inclination, reconstruction