L-C Ligament Versus Hamstring Autograft for Primary ACL Reconstruction

NCT ID: NCT02183727

Last Updated: 2021-11-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-09-30

Study Completion Date

2020-07-31

Brief Summary

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The purpose of this study is to compare safety and efficacy outcomes of the L-C Ligament versus Hamstring Autograft for treatment of acute rupture of the ACL.

Detailed Description

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Conditions

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Acute Ruptures of the Anterior Cruciate Ligament

Keywords

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ACL knee injury anterior cruciate ligament

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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L-C Ligament

Soft Tissue Regeneration's L-C Ligament is an investigation, interventional device intended for ACL reconstruction surgery within 18 weeks of acute rupture of the ACL and no previous surgical treatment. The L-C Ligament temporarily replaces the human anterior cruciate ligament (ACL) and provides a bioresorbable scaffold within and around which the native ACL will regenerate over time.

Group Type EXPERIMENTAL

L-C Ligament

Intervention Type DEVICE

The L-C Ligament is a bioresorbable, three-dimensional (3-D) braided scaffold made from poly L-lactic acid (PLLA) fiber. One device is used to replace the ACL. The L-C Ligament is an interventional device. The L-C Ligament is comprised of three regions: (1) The femoral tunnel attachment site, (2) The ligament region (intra-articular zone), and (3) The tibial tunnel attachment site. For several months after surgery, the L-C Ligament replaces the function of the ACL. During this time, ligament tissue regenerates within and around the L-C Ligament, which is slowly absorbed and replaced by the ACL.

Hamstring Autograft

Hamstring autograft is the active comparator for this study. Autograft tissue is the gold-standard treatment for primary ACL reconstruction.

Group Type ACTIVE_COMPARATOR

Hamstring Autograft

Intervention Type PROCEDURE

The gold-standard treatment for ACL reconstruction is autograft tissue. Autograft is a piece of tendon harvested from another part of the patient's body, such as the hamstring or kneecap. In this study, the hamstring tendon from the back of the thigh of the injured (target) leg will be harvested and surgically transferred to replace the torn ACL. The attachment of the autologous tendon in the femoral and tibial bone tunnels will utilize techniques that are similar to those for the L-C Ligament. Over time the replacement tendon resorbs and a new ACL is regenerated.

Interventions

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L-C Ligament

The L-C Ligament is a bioresorbable, three-dimensional (3-D) braided scaffold made from poly L-lactic acid (PLLA) fiber. One device is used to replace the ACL. The L-C Ligament is an interventional device. The L-C Ligament is comprised of three regions: (1) The femoral tunnel attachment site, (2) The ligament region (intra-articular zone), and (3) The tibial tunnel attachment site. For several months after surgery, the L-C Ligament replaces the function of the ACL. During this time, ligament tissue regenerates within and around the L-C Ligament, which is slowly absorbed and replaced by the ACL.

Intervention Type DEVICE

Hamstring Autograft

The gold-standard treatment for ACL reconstruction is autograft tissue. Autograft is a piece of tendon harvested from another part of the patient's body, such as the hamstring or kneecap. In this study, the hamstring tendon from the back of the thigh of the injured (target) leg will be harvested and surgically transferred to replace the torn ACL. The attachment of the autologous tendon in the femoral and tibial bone tunnels will utilize techniques that are similar to those for the L-C Ligament. Over time the replacement tendon resorbs and a new ACL is regenerated.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Patients with acute ruptures of the ACL who are willing to undergo treatment within 18 weeks of injury

* The patient is unwilling to not participate in sporting activities for at least 9 months post-procedure
* The patient is mentally compromised
* The patient has a neuromuscular disorder that would engender unacceptable risk of knee instability, prosthesis fixation failure, or complications in postoperative care
* The patient has an active or latent infection in or about the affected knee joint or an infection site distant from the knee that may spread to the knee hematogenously
* Pregnant based on a positive beta hCG serum or an in vitro diagnostic test result or breast-feeding
* The patient is obese with a BMI \> 35
* The patient has a known allergy to PLLA
* The patient has a medical condition or comorbidity that would interfere with study participation

Exclusion Criteria

* Prior ACL reconstruction or other surgical procedure on the affected (target) knee
* Chronic ACL injury; interventional surgery scheduled 127 days or more after ACL injury
* Professional athletes currently engaged in active sport
* Prior distal femoral and/or proximal tibial fracture(s) of the target leg
* Previous or current ACL injury on contra-lateral leg
* Multi-ligament reconstruction
* Malalignment or varus thrust
* Patient \> 193 cm tall (6' 4")
* The patient does not follow pre-operative rehabilitation that may have been prescribed post-injury (prior to Index Procedure)
* Confirmed connective tissue disorder
* Signs of moderate to severe degenerative joint disease
* Severe pain, swelling, or redness within 24 hours prior to surgery
* Complete or partial Posterior Cruciate Ligament (PCL) tear
* If concomitant meniscal injury is present, any of the following: 1/3rd meniscal resection; complex double-bucket tear; partially repaired meniscal tears
* Any type of lateral and/or medial meniscal tear which is not repairable (\<2mm from rim)
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Soft Tissue Regeneration, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kees van Egmond, MD

Role: PRINCIPAL_INVESTIGATOR

Isala Klinieken, Zwolle, The Netherlands

Locations

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Isala Klinieken

Zwolle, , Netherlands

Site Status

Countries

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Netherlands

Other Identifiers

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LC1060

Identifier Type: -

Identifier Source: org_study_id