Femoral Tunnel Position on Conventional MRI After Anterior Cruciate Ligament Reconstruction-Transtibial Technique Versus Transportal Technique

Study Overview
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Brief Summary
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The position of the femoral tunnel in anterior cruciate ligament (ACL) reconstruction has been assessed on three dimensional CT (3D-CT) scan or in cadaveric study. However, these methods have some issues; 3D-CT scan has a concern on radiation exposure and cadaveric study is not easily available nor an in vivo test. The purpose of this study is to compare the position of the femoral tunnel aperture on conventional MRI and the outcomes after single bundle ACL reconstruction using free tendon Achilles allograft between transportal technique and transtibial technique in active young men.

Conditions
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Anterior Cruciate Ligament Rupture

Intervention / Treatment
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* Procedure: transtibial technique
* Procedure: Transportal technique
* Procedure: anterior cruciate ligament reconstruction


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: diagnosis of anterior cruciate ligament rupture Exclusion Criteria: female over 45 years old the subjects who had ACL reconstruction with graft other than Achilles allograft the subjects who had concomitant other ligament injuries on the same knee needing surgical treatment revision ACL reconstruction double bundle ACL reconstruction concomitant full thickness cartilage injury needing cartilage repairing surgery

Ages Eligible for Study
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Minimum Age: 17 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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Male

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: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: transtibial technique<br>In anterior cruciate ligament reconstruction, femoral tunnel was made via tibial tunnel. | Procedure: transtibial technique<br>* Femoral tunnel was made via tibial tunnel in anterior cruciate ligament reconstruction.<br>Procedure: anterior cruciate ligament reconstruction<br>* femoral and tibial tunneling graft fixation on the femoral side with endobutton and on the tibial side with post-tie and interference screw<br>|
| Active Comparator: Transportal technique<br>In anterior cruciate ligament reconstruction, femoral tunnel was made via anteromedial portal. | Procedure: Transportal technique<br>* Femoral tunnel was made via anteromedial portal in anterior cruciate ligament reconstruction.<br>* Other names: anteromedial portal technique;Procedure: anterior cruciate ligament reconstruction<br>* femoral and tibial tunneling graft fixation on the femoral side with endobutton and on the tibial side with post-tie and interference screw<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Lysholm score | Lysholm score was superior in transportal technique to transtibial technique. | at least two years after surgery | 
| Position of femoral tunnel aperture | The position of the femoral tunnel aperture with transportal technique was more posterior than that of transtibial technique. | within one week after surgery |