Clinical trial NCT03294720: BioACL Reconstruction With Amnion Collagen Matrix Wrap and Stem Cells Case Series
Official title: Augmentation of ACL Reconstruction With Bone Marrow Stem Cells and Amnion Collagen Matrix Wrap: a Case Series
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: ACL - Anterior Cruciate Ligament Rupture
Lead sponsor: Andrews Research & Education Foundation
Sponsor class: OTHER
Collaborators: name: Arthrex, Inc.
First posted: 2017-09-27
Enrollment: 10
Sex: ALL
Minimum age (years): 18
Maximum age (years): 35
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: Normal ACL reconstruction with either patellar or hamstring autograft will be done and prior to fixation the graft will be wrapped in a amion collagen wrap. Bone marrow aspirate will be obtained from distal femur at the time of the arthroscopy and stem cells isolated using the Arthrex Angel System. These stem cells with be under direct visualization impregnated into the ACL autograft amion wrap complex.
Primary purpose: TREATMENT

Brief summary: The objective of this study is to evaluate the use of wrapping an ACL graft with a collagen matrix tissue wrap and injecting autologous bone marrow aspirate concentrate under the wrapping and into the graft. Investigators hypothesize that this method of augmenting ACL surgery will accelerate and improve the graft maturation and ligamentization process. Investigators propose to test this hypothesis with a series of cases of ACL reconstructions evaluated with post-operative MRI mapping sequences and validated clinical outcome measures

Detailed description: Histologic studies have determined that graft ligamentization following anterior cruciate ligament (ACL) reconstruction may take from 6 to 18 months. (1) It has been reported that incomplete graft maturation and incorporation is one cause of clinical graft failure. Animal studies have illustrated improved tendon healing/integration in ACL models augmented with stem cell technologies. (2-4). Basic scientists theorize that optimization of stem cell treatments for tissue regeneration requires that a "regenerative triad" be employed, i.e., use of a scaffold, stem cells and growth factors. In the intra-articular environment, research has shown that a scaffold such as an amnion wrap is necessary to contain the stem cells and growth factors in close proximity to the ACL graft. (2, 4, 5) The normal, uninjured human ACL is covered by a layer of synovial tissue which contributes to the blood supply and nutrition of the native ACL. It is theorized that the lack of a synovial lining after injury and following traditional ACL reconstruction contributes to slow ligamentization and possible failure of reconstructed grafts.(5) Two studies have demonstrated accelerated maturation and ligamentization of human ACL graft augmented with point of care blood products. (6, 7) In one, leucocyte poor platelet rich plasma was injected directly into the body of the graft. (6) In the other, the platelet derived growth factors were loaded in a gelatin carrier which was wrapped around the graft. (7) In both studies accelerated and increased ligament maturation was documented compared to the controls. Collagen membranes derived from amniotic tissue have been successful to aid healing when used in difficult wounds and meniscal repair surgery. (8, 9) Investigators believe that use of a collagen based -membrane derived from amniotic tissue can be used to help reestablish the natural synovial lining of the reconstructed ACL, in effect acting as both a barrier from the synovial fluid and as a scaffold to contain autologous mesenchymal stem cells and growth factors contiguous with the graft, thus aiding and perhaps accelerating the natural maturation and ligamentization process of the implanted graft tissue. Acceleration and improvement in graft maturation and strength would be a significant advancement in sports medicine allowing safer and earlier return to sports and activity.

Eligibility criteria: Inclusion Criteria:

* Patients between the ages of 18 and 35 who are scheduled to have anterior cruciate ligament reconstruction with autologous grafts by the principal investigator will be screened for participation in this study.
* Patients must be willing to undergo MRI scans post -operatively at 3, 6, 9 months and 1 year.

Exclusion Criteria:

* Patients with prior procedures or significant prior injuries to the same knee are excluded. Any patient who will have difficulty obtaining internet access, does not have an active e-mail address, or is unable to comprehend study documents or give informed consent will be excluded.
* Patient who are unable to complete MRI examinations due to claustrophobia or anxiety will be excluded.

Primary outcomes:
measure: MRI graft maturation and integration
timeFrame: 3 months, 6 months, 9 months, and 12 months post-op
Secondary outcomes:
measure: Changes in patient-reported pain rating
timeFrame: 3 months, 6 months, 9 months, 12 months post-op
measure: Changes in Knee injury and Osteoarthritis Outcome Score (KOOS)
timeFrame: 3 months, 6 months, 9 months, 12 months post-op
measure: Changes in Short Form 12 (SF-12) patient ratings
timeFrame: 3 months, 6 months, 9 months, 12 months post-op
measure: Changes in Single Assessment Numerical Evaluation (SANE) patient ratings for function
timeFrame: 3 months, 6 months, 9 months, 12 months post-op
measure: Marx Activity Scale Rating
timeFrame: 3 months, 6 months, 9 months, 12 months post-op
Other outcomes:
Locations:
city: Gulf Breeze
country: United States
facility: Andrews Institute
state: Florida
Study officials:
affiliation: Andrews Insituite for Sports and Orthopaedics
name: Adam Anz, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Claes S, Verdonk P, Forsyth R, Bellemans J. The "ligamentization" process in anterior cruciate ligament reconstruction: what happens to the human graft? A systematic review of the literature. Am J Sports Med. 2011 Nov;39(11):2476-83. doi: 10.1177/0363546511402662. Epub 2011 Apr 22.
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