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Cortical Bone Trajectory Screws vs. Traditional Pedicle Screws Fixation

Primary Purpose

Spinal Stenosis Lumbar, Lumbar Disc Herniation, Intervertebral Disc Degeneration

Status
Unknown status
Phase
Not Applicable
Locations
China
Study Type
Interventional
Intervention
cortical bone trajectory screws
pedicle screws
Sponsored by
Second Affiliated Hospital of Wenzhou Medical University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Spinal Stenosis Lumbar focused on measuring CBT, RCT, TLIF

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Age of at least 18 years;
  2. All of participants will be informed consent;
  3. Chronic low back pain (visual analogue scale at least 3 out of 10 at rest and at least 5 out of 10 under physical strain) after having failed conservative treatment for 6 months;
  4. Single-segment lower lumbar vertebral disease (Including lumbar spinal cannal stenosis, foraminal stenosis, segmental instability, lumbar disc herniation, and painful disc degeneration (back disc);

Exclusion Criteria:

  1. Serious deformity of lumbar vertebrae;
  2. Dysplasia of lumbar pedicle or vertebral laminar;
  3. Obvious osteoporosis of lumbar vertebrae;
  4. Metabolic bone diseases such as osteomalacia or Paget's disease;
  5. Spondylolisthesis > grade 2 (Meyerding);
  6. Caudaequina injury or severe radiculopathy;
  7. Post inflammatory instability of the vertebral spine;
  8. Body mass index > 30;
  9. Immunologic diseases or Metabolic syndrome;
  10. Therapy with systemic corticosteroids or immunosuppressants;
  11. Current using Coumadin (or Warfarin) or Heparin therapy for more than 6 months at the time of operation.

Sites / Locations

  • The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Experimental

Arm Label

CBT-TLIF group

PS-TLIF group

Arm Description

Patients who are randomised to the CBT-TLIF group will have cortical bone trajectory screws instead of pedicle screws During the opreation. After preventive use of antibliotics,A small skin incision was made at the fused segment, an entry point for insertion of the CBT screws was drilled in the junction of the center of the superior articular process and 1 mm inferior to the inferior border of the transverse process according to Matsukawa et al.A straight probe was used to create a trajectory for the CBT screws from the entry point to the opposite corner of the pedicle and vertebral body under anteroposterior fluoroscopic guidance.nilateral facetectomy is performed to gain access to the intervertebral disc.Afterwards, interbody fusion was performed.Device: CBT screws.

Patients who are randomised to the PS-TLIF group will have pedicle screws During the opreation. A posterior midline incision, about 6 cm, was performed at the level of interest level under fluoroscopic guidance. Pedicle screws were inserted into the vertebral body by using freehand, and the inferior and superior articular processes and part pf the lamina were removed by using an osteotome. To expose the lateral border of the ipsilateral nerve root, the ligamentum flavum was removed. Afterwards, interbody fusion was performed.Device:traditional pedicle screws.

Outcomes

Primary Outcome Measures

Visual analogue scale(VAS)
pain score

Secondary Outcome Measures

Oswestry Disability Index (ODI)
The Oswestry Disability Index pain score
Symptomatic adjacent-segment disease (SASD)
Symptomatic adjacent-segment disease rate
Japanese Orthopedic Association (JOA)
Japanese Orthopedic Association score

Full Information

First Posted
March 28, 2017
Last Updated
July 25, 2018
Sponsor
Second Affiliated Hospital of Wenzhou Medical University
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1. Study Identification

Unique Protocol Identification Number
NCT03105167
Brief Title
Cortical Bone Trajectory Screws vs. Traditional Pedicle Screws Fixation
Official Title
Transforaminal Lumbar Interbody Fusion With Cortical Bone Trajectory Screws vs. Traditional Pedicle Screws Fixation: a Multicentre Randomised Controlled Trial
Study Type
Interventional

2. Study Status

Record Verification Date
July 2018
Overall Recruitment Status
Unknown status
Study Start Date
May 7, 2018 (Actual)
Primary Completion Date
December 13, 2020 (Anticipated)
Study Completion Date
December 13, 2021 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Second Affiliated Hospital of Wenzhou Medical University

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

Brief Summary
Transforaminal lumbar interbody fusion (TLIF) had been favorable for effectively decrease pain and disability in specific spinal disorders; however, there has been concern regarding pedicle screw placement during TLIF surgery. Recently, several biomechanical studies had demonstrated that CBT technique achieves screw purchase and strength equivalent to or greater than the traditional method. Furthermore, Only 1 report examined the surgical outcomes of TLIF with CBT screws fixation compared with TLIF using traditional pedicle screws fixation. TLIF with CBT screws fixation may be effective for specific spinal disorders, but the evidence supporting this possibility is still limited.
Detailed Description
Methods and analysis: Blinded Randomized Controlled Trial (RCT) will be conducted. A total of 108 participants will be randomly allocated to either a CBT-TLIF group or a PS-TLIF group at a ratio of 1:1. The primary clinical outcome measures are: change in back and lower limb pain with Visual analogue scale (VAS) and change in quality adjusted life years (QALY) will be assessed by EQ-5D-5L. Measurements will be carried out at five fixed time points (pre-operatively and at 3, 6, 12 and 24 months). Ethics and dissemination: The study had been reviewed and approved by the ethics committee of the Second affiliated hospital of the Wenzhou Medical University, Wenzhou, China(batch:2017-03). The results will be presented in peer-reviewed journals and related website within 2 years after the last operation.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Spinal Stenosis Lumbar, Lumbar Disc Herniation, Intervertebral Disc Degeneration
Keywords
CBT, RCT, TLIF

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantOutcomes Assessor
Allocation
Randomized
Enrollment
108 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
CBT-TLIF group
Arm Type
Experimental
Arm Description
Patients who are randomised to the CBT-TLIF group will have cortical bone trajectory screws instead of pedicle screws During the opreation. After preventive use of antibliotics,A small skin incision was made at the fused segment, an entry point for insertion of the CBT screws was drilled in the junction of the center of the superior articular process and 1 mm inferior to the inferior border of the transverse process according to Matsukawa et al.A straight probe was used to create a trajectory for the CBT screws from the entry point to the opposite corner of the pedicle and vertebral body under anteroposterior fluoroscopic guidance.nilateral facetectomy is performed to gain access to the intervertebral disc.Afterwards, interbody fusion was performed.Device: CBT screws.
Arm Title
PS-TLIF group
Arm Type
Experimental
Arm Description
Patients who are randomised to the PS-TLIF group will have pedicle screws During the opreation. A posterior midline incision, about 6 cm, was performed at the level of interest level under fluoroscopic guidance. Pedicle screws were inserted into the vertebral body by using freehand, and the inferior and superior articular processes and part pf the lamina were removed by using an osteotome. To expose the lateral border of the ipsilateral nerve root, the ligamentum flavum was removed. Afterwards, interbody fusion was performed.Device:traditional pedicle screws.
Intervention Type
Procedure
Intervention Name(s)
cortical bone trajectory screws
Intervention Description
cortical bone trajectory screws fixation takes the place of traditional pedicle screws fixation will be used in transforaminal lumbar interbody fusion.
Intervention Type
Procedure
Intervention Name(s)
pedicle screws
Intervention Description
traditional pedicle screws fixation will be used in transforaminal lumbar interbody fusion.
Primary Outcome Measure Information:
Title
Visual analogue scale(VAS)
Description
pain score
Time Frame
up to 36 months
Secondary Outcome Measure Information:
Title
Oswestry Disability Index (ODI)
Description
The Oswestry Disability Index pain score
Time Frame
up to 48 months
Title
Symptomatic adjacent-segment disease (SASD)
Description
Symptomatic adjacent-segment disease rate
Time Frame
up to 48 months
Title
Japanese Orthopedic Association (JOA)
Description
Japanese Orthopedic Association score
Time Frame
up to 48 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Age of at least 18 years; All of participants will be informed consent; Chronic low back pain (visual analogue scale at least 3 out of 10 at rest and at least 5 out of 10 under physical strain) after having failed conservative treatment for 6 months; Single-segment lower lumbar vertebral disease (Including lumbar spinal cannal stenosis, foraminal stenosis, segmental instability, lumbar disc herniation, and painful disc degeneration (back disc); Exclusion Criteria: Serious deformity of lumbar vertebrae; Dysplasia of lumbar pedicle or vertebral laminar; Obvious osteoporosis of lumbar vertebrae; Metabolic bone diseases such as osteomalacia or Paget's disease; Spondylolisthesis > grade 2 (Meyerding); Caudaequina injury or severe radiculopathy; Post inflammatory instability of the vertebral spine; Body mass index > 30; Immunologic diseases or Metabolic syndrome; Therapy with systemic corticosteroids or immunosuppressants; Current using Coumadin (or Warfarin) or Heparin therapy for more than 6 months at the time of operation.
Facility Information:
Facility Name
The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
City
Wenzhou
State/Province
Zhejiang
ZIP/Postal Code
325000
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
TING LI
Phone
057788002888
Email
feclinicalresearch@163.com
First Name & Middle Initial & Last Name & Degree
WENFEI NI

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
All of the patients' outcomes (without patients' personal information) will be public shared within 2 years after clinical trial complete.
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Cortical Bone Trajectory Screws vs. Traditional Pedicle Screws Fixation

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