Trinity Evolution in Posterior or Transforaminal Lumbar Interbody Fusion (PLIF/TLIF)



Status:Completed
Conditions:Orthopedic
Therapuetic Areas:Orthopedics / Podiatry
Healthy:No
Age Range:18 - Any
Updated:10/25/2018
Start Date:September 2009
End Date:January 2015

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A Radiographic and Clinical Study Evaluating a Novel Allogeneic, Cancellous, Bone Matrix Containing Viable Stem Cells (Trinity Evolution™ Viable Cryopreserved Cellular Bone Matrix) in Posterior Lumbar or Transforaminal Lumbar Interbody Fusion (PLIF or TLIF)

The purpose of this study is to utilize Trinity Evolution in conjunction with an interbody
spacer and supplemental posterior fixation of the surgeon's choice and to follow the patients
to measure the clinical outcomes and rate of fusion. The hypothesis of the study is that
Trinity Evolution combined with an interbody spacer and supplemental posterior fixation will
result in fusion rates and clinical outcomes similar to those with other routinely used
autograft and allograft materials including: fusion, improvement in pain and function,
maintenance of lower extremity neurological function, and absence of serious adverse events
related to the use of the Trinity Evolution product.

Degenerative disorders of the lumbar spine can lead to a multitude of clinical problems
including back pain and/or leg pain secondary to nerve compression and/or deformity. When
conservative (non-surgical) treatment fails after at least a 6 month period and/or
non-operative treatment is not indicated, patients and physicians may turn to a surgical
solution. Surgical options consist basically of decompressing nerves, correcting and/or
stabilizing deformities if required and fusing the segment, depending on the clinical
situation. The "gold standard" for aiding healing in spinal fusion surgeries is the
harvesting of autograft from the patient's iliac crest and placing it in and around the
segments of the spine that are intended to be fused. Autograft is considered the "gold
standard" because it contains the essential elements required for successful bone grafting:
osteogenesis, osteoconduction, and osteoinduction.

However, the morbidity of harvesting autograft has been well documented and includes chronic
donor-site pain, infection, neurologic injury, blood loss, deformity, bowel injury, hernia,
and prolonged surgical and hospitalization time. There are now a number of products on the
market to minimize or replace the use of autograft. However, few of these products contain
all three essential bone-forming elements (osteogenesis, osteoconduction, and osteoinduction)
in a single, stand alone product.

Trinity Evolution is a novel, allogeneic cancellous bone matrix containing viable
osteoprogenitor cells, mesenchymal stem cells and a demineralized cortical bone (DCB)
component to provide the required osteoconduction, osteogenesis, and osteoinduction necessary
for successful bone grafting. Preclinical studies with Trinity Evolution have demonstrated
in-vitro and in-vivo safety and effectiveness. Trinity Evolution is considered an allograft
and as such is a "minimally manipulated" tissue and is labeled for bone repair for spinal,
orthopedic and podiatric indications where autograft is used. The dosage will be dependent
upon the specific requirements of the case.

Inclusion Criteria:

- Symptomatic lumbar degenerative disc disease at 1 or 2 adjacent levels between L3 and
S1

- Patients with back and/or leg pain scheduled for stabilization with or without
decompression via a TLIF or PLIF approach utilizing an interbody spacer and
supplemental posterior fixation.

- Greater than 18 years of age

- Unresponsive to conservative care over a period of at least 6 months or has
progressive neurological signs and/or symptoms of neurological compromise that mandate
urgent surgical intervention

- Willing and able to comply with the requirements of the protocol including follow-up
requirements

- Willing and able to sign a study specific informed consent.

Exclusion Criteria:

- Patients requiring surgical treatment other than at 1 or 2 adjacent levels between L3
and S1

- Active local or systemic infection

- Currently pregnant or considering becoming pregnant during the follow-up period

- Active malignancy or having been on chemotherapy of any kind for a malignancy in the
past 1 year

- Use of any other bone graft or bone graft substitute in addition to or in place of
Trinity Evolution matrix in and around the interbody spacer.

- Use of adjunctive post-operative stimulation

- Prior interbody surgery at the same level

- Has a known history of hypersensitivity or anaphylactic reaction to dimethyl sulfoxide
(DMSO).
We found this trial at
15
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Durham, North Carolina 27710
(919) 684-8111
Duke University Younger than most other prestigious U.S. research universities, Duke University consistently ranks among...
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