Stability of the Knee Joint After Anterior Cruciate Ligament and Anterolateral Ligament Reconstruction

Study Overview
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Brief Summary
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The objective of this randomised cohort study was to evaluate the knee rotational stability after the single-bundle ACL reconstruction (SB) with addition of the ALL reconstruction and to compare it with the double-bundle ACL reconstruction technique (DB) and to analyse when the ALL is necessary to reconstruct.

Detailed Description
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Background Rotational instability after the anterior cruciate ligament (ACL) injury and subsequent reconstruction may be caused by the rupture of the anterolateral structures of the knee, specifically the anterolateral ligament (ALL). There are more techniques to improve the rotational stability of the knee. The objective of this randomised cohort study was: (1) To evaluate the knee rotational stability after the single-bundle ACL reconstruction (SB) with addition of the ALL reconstruction and to compare it with the double-bundle ACL reconstruction technique (DB). (2) To analyse when the ALL is necessary to reconstruct. Methods 60 patients underwent the ACL reconstruction with the average age of 29.5 years. In thirty patient's knees the ACL was replaced with quadriceps muscle graft using the SB technique in combination with the ALL reconstruction by the gracilis graft (ALL group). With another thirty patients the ACL was reconstructed performing DB technique with the use of hamstring tendons (DB group). The rotational stability was studied before and after the reconstruction of the ACL in time zero using the computer navigation system. In the ALL group, the rotational stability was also analysed after the ALL reconstruction.

Official Title
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Biomechanical Assessment of the Reconstruction of the Anterolateral Ligament During ACL Surgery. The In-vivo Study

Conditions
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Cruciate Ligament Rupture

Intervention / Treatment
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* Procedure: reconstruction of the ACL and anterolateral ligament


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: The isolated ACL lesion The absence of the previous surgery on the knee joint The body mass index (BMI) less than 30. Exclusion Criteria: Associated injuries of the tissue around the knee joint

Ages Eligible for Study
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Minimum Age: 17 Years
Maximum Age: 40 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: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: double-bundle ACL reconstruction<br>surgical reconstruction of the anterior cruciate ligament | Procedure: reconstruction of the ACL and anterolateral ligament<br>* reconstruction of the ACL and anterolateral ligament<br>|
| Other: anterolateral ligament reconstruction<br>surgical reconstruction of the anterolateral ligament | Procedure: reconstruction of the ACL and anterolateral ligament<br>* reconstruction of the ACL and anterolateral ligament<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Description of the change in the rotational stability of the knee joint after ACL and anterolateral ligament reconstruction. | Analyse of the rotational stability of the knee joint 24 months after the operation by the computerised navigation system. | 24 months after the operation |