NCT05190055

Brief Summary

Participants with lumbar spondylosis, degenerative disc disease, spondylolisthesis, scoliosis, or trauma undergoing elective Transforaminal lumbar interbody fusion (TLIF) were recruited. The follow-up period was 24 months for each participant. The eligible patients for this study should be above 18 years old with confirmed indication to TLIF through a posterior approach. Patients with an active infection, symptomatic osteoporosis, immature bone, pregnancy, active malignancy, and previous radiotherapy at the planned surgical site were excluded. Informed consent was signed by each participant before recruitment. We strictly followed the protocols of patient confidentiality and human subjects in the clinical trial implementation. The patients were blinded to the allocated surgical technique before the operation and during the follow-up period of two years. On the one hand, the doctor will assess the patient's physiological function recovery and imaging examinations (such as CT, MRI or X-ray) before and after the operation to understand the changes in the patient's pain index and the effect of intervertebral disc fusion after the operation; on the other hand, It also evaluates the quality of life and the degree of improvement of psychological emotions through the questionnaires of patients before and after surgery.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
73

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2015

Longer than P75 for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 25, 2015

Completed
6.7 years until next milestone

First Submitted

Initial submission to the registry

November 19, 2021

Completed
2 months until next milestone

First Posted

Study publicly available on registry

January 13, 2022

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 30, 2022

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 26, 2023

Completed
Last Updated

July 19, 2022

Status Verified

July 1, 2022

Enrollment Period

7 years

First QC Date

November 19, 2021

Last Update Submit

July 15, 2022

Conditions

Keywords

Spinal FusionMinimally invasive surgery

Outcome Measures

Primary Outcomes (2)

  • Change of back pain at 24 months from baseline as measured by a 100 mm VAS scale

    The back pain intensity on 100-mm VAS will be performed and recorded at Day 1 (within 48 hours before surgery as the Baseline) and 24th month.

    Preoperation and 24month post operation

  • Change of function at 24 months from baseline as measured by the 100 points Oswestry Disability Index (ODI)

    The level of function on 100-point ODI will be performed and recorded at Day 1 (within 48 hours before surgery as the Baseline) and 24th month.

    Preoperation and 24month post operation

Secondary Outcomes (1)

  • Fusion Rates

    3, 6, 12, and 24 months

Study Arms (2)

Minimally invasive spinal fusion surgery

EXPERIMENTAL

A filler tube with an integrated threaded rod, which can be connected to a surgical drill, was used for rapid and continuous graft filling.

Device: bone graft delivery system/wiltrom interbody fusion system/wiltrom spinal fixation system

traditional spinal fusion surgery

ACTIVE COMPARATOR

Bone substitutes were filled in the disc space manually using a bone grafting funnel.

Device: wiltrom interbody fusion system/wiltrom spinal fixation system

Interventions

After receiving prophylactic antibiotics according to the local hospital protocol, the patients were generally anesthetized in a prone position. Paramedian or midline posterior sections were conducted, exposing the lumber vertebras encompassing the facet joints. The facet joints were removed, and decompression was performed. The diseased disc nucleus was then excised before filling in the bone substitutes. In the case of the device group, a novel filler tube with an integrated threaded rod, which can be connected to a surgical drill, A PEEK interbody fusion cage was then placed into the disc space followed by fixation with pedicle screws.

Minimally invasive spinal fusion surgery

After receiving prophylactic antibiotics according to the local hospital protocol, the patients were generally anesthetized in a prone position. Paramedian or midline posterior sections were conducted, exposing the lumber vertebras encompassing the facet joints. The facet joints were removed, and decompression was performed. The diseased disc nucleus was then excised before filling in the bone substitutes. For the control group, the bone substitutes were filled in the disc space manually using a bone grafting funnel. A PEEK interbody fusion cage was then placed into the disc space followed by fixation with pedicle screws.

traditional spinal fusion surgery

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • spinal fusion procedures in skeletally mature patients with Degenerative Disc Disease (DDD) at one or two contiguous levels from L2 to S1. DDD is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies. These DDD patients may also have up to Grade I spondylolisthesis or retrolisthesis at the involved levels. Patients should have had six months of non-operative treatment prior to treatment with an intervertebral body fusion device.

You may not qualify if:

  • Patients unsuitable for anesthesia
  • Active systemic infection, infection or suspected latent infection localized to the site of the proposed implantation
  • Excessive local inflammation
  • Rapid joint disease, bone absorption, osteopenia
  • Severe osteoporosis or osteopenia
  • Morbid obesity
  • Pregnancy
  • Open wounds
  • Patients have demonstrated allergy or foreign body sensitivity to any of the implant materials
  • Any medical or surgical condition which would preclude the potential benefit of spinal implant surgery, surgery, such as the presence of tumors, congenital abnormalities, elevation of sedimentation rate unexplained by other diseases, elevation of white blood cell count (WBC), or marked left shift in the WBC differential count
  • Patients whose activity, mental capacity, mental illness, alcoholism, drug abuse, occupation, or lifestyle may interfere with their ability to follow postoperative restrictions and who may place undue stresses on the implant during bony healing and may be at a higher risk of implant failure
  • Any patient in which implant utilization would interfere with anatomical structures or expected physiological performance
  • Any condition not described in the indications for use

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Yang KS, Chen CW, Yau RB, Liang HC, Ko CC, Kuo JR, Chio CC, Lim SW. A novel surgical technique in transforaminal lumbar interbody fusion by the bone graft delivery device: evaluation of therapeutic effect in patients with minimally invasive spine surgery. BMC Surg. 2022 Oct 26;22(1):366. doi: 10.1186/s12893-022-01773-y.

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director

Study Record Dates

First Submitted

November 19, 2021

First Posted

January 13, 2022

Study Start

March 25, 2015

Primary Completion

March 30, 2022

Study Completion

February 26, 2023

Last Updated

July 19, 2022

Record last verified: 2022-07

Data Sharing

IPD Sharing
Will not share