Comparing Pedicle Screw Systems for the Treatment of Adolescent Paediatric Spine Deformity

NCT ID: NCT02590380

Last Updated: 2021-10-21

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

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2022-09-30

Study Completion Date

2030-09-30

Brief Summary

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Evaluation of the efficacy of the K2M MESA Rail™ Deformity System at improving coronal and sagittal correction of the adolescent idiopathic spine deformity in comparison to the side loading DePuy Synthes USS II pedicle screw system.

Detailed Description

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Evaluation of the efficacy of the K2M MESA Rail™ Deformity System at improving coronal and sagittal correction of the adolescent idiopathic spine deformity in comparison to the side loading DePuy Synthes USS II pedicle screw system. This is a single-center, single-surgeon randomized controlled trial with follow-up evaluations of patients conducted at initial follow-up (2 weeks to 8 weeks), 3 months, 12 months and 24 months post-procedure. Adverse events will be monitored continuously.

Conditions

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Adolescent Idiopathic Scoliosis

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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treatment group (MESA)

Patients randomized to the treatment group will receive surgery with the MESA Rail Deformity System.

Group Type ACTIVE_COMPARATOR

MESA Rail Deformity System

Intervention Type DEVICE

The spinal deformity will be correction via a standard of care procedure performed by the principal investigator. The correction will be fixated with the MESA Rail Deformity System.

control group (USS II)

Patients randomized to the control group will receive surgery with the DePuy Synthes USS II System.

Group Type ACTIVE_COMPARATOR

DePuy Synthes USS II System

Intervention Type DEVICE

The spinal deformity will be correction via a standard of care procedure performed by the principal investigator. The correction will be fixated with the DePuy Synthes USS II system.

Interventions

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MESA Rail Deformity System

The spinal deformity will be correction via a standard of care procedure performed by the principal investigator. The correction will be fixated with the MESA Rail Deformity System.

Intervention Type DEVICE

DePuy Synthes USS II System

The spinal deformity will be correction via a standard of care procedure performed by the principal investigator. The correction will be fixated with the DePuy Synthes USS II system.

Intervention Type DEVICE

Other Intervention Names

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MESA Rail, K2M MESA Rail, MESA, K2M MESA DePuy, DePuy Synthes, Synthes, USS II, Universal Stainless

Eligibility Criteria

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Inclusion Criteria

1. Diagnosis of Adolescent Idiopathic Scoliosis (AIS) with no associated syndrome requiring surgical treatment for selective thoracic/lumbar fusion with a minimum of five (5) instrumented vertebrae between T1-S1 as confirmed by patient history and radiographic studies. AIS cases must be classified as a Lenke type 1 or type 2 curve. No cervical vertebrae are to be incorporated into the construct.
2. Willingness and ability to comply with the requirements of the protocol including follow-up requirements.
3. Willing and able to sign a study specific informed consent form or, in the case of a patient who is a minor, provide assent and the minor patient's parent/legal guardian provides written consent to participate.
4. Age range of ≥ 11 years old and ≤ 21 years old at time of surgery.

Exclusion Criteria

1. Previous anterior or posterior spine surgery at the index levels.
2. Previous posterior spine surgery (e.g., posterior element decompression) that destabilizes the cervical/thoracic/lumbar spine.
3. Active systemic infection or infection at the operative site.
4. Any sign of any spinal dysrhaphism (any cord abnormality).
5. Co-morbid medical conditions of the spine or upper/lower extremities that may affect the thoracic or lumbar spine neurological and/or pain assessment.
6. Metabolic bone disease such as osteoporosis that contradicts spinal surgery.
7. History of an osteoporotic fracture.
8. History of an endocrine or metabolic disorder (e.g., Paget's disease) known to affect bone and mineral metabolism.
9. Taking medications that may interfere with bony/soft tissue healing including chronic oral steroid use.
10. Known allergy to titanium or cobalt chrome.
11. Rheumatoid arthritis or other autoimmune disease or a systemic disorder such as HIV, active hepatitis B or C or fibromyalgia.
12. Insulin-dependent type 1 or type 2 diabetes.
13. Medical condition (e.g., unstable cardiac disease, cancer) that may result in patient death or have an effect on outcomes prior to study completion.
14. Pregnant, or intend to become pregnant, during the course of the study.
15. Severe obesity (Body Mass Index \> 40).
16. Physical or mental condition (e.g., psychiatric disorder, senile dementia, Alzheimer's disease, alcohol or drug addiction) that would interfere with patient self-assessment of function, pain or quality of life.
17. Incarcerated at the time of study enrollment.
18. Current participation in an investigational study that may impact study outcomes.
Minimum Eligible Age

11 Years

Maximum Eligible Age

21 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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K2M, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University Hospital Southampton

Southampton, , United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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CAS-029

Identifier Type: -

Identifier Source: org_study_id