NCT04174144

Brief Summary

Degenerative spondylolisthesis is a common spinal degenerative disease. It is defined as the slippage of one vertebrae on the vertebrae bellow. In the process of spinal ageing and spinal joint degeneration, the spine becomes subjected to degenerative development that results in joint instability, shifting of vertebrae and can be responsible for a progressive kyphosis of the lumbar spine and sagittal imbalance with forward inclination of the trunk and chronic low back pain development. To address these changes and restore stability, lumbar spinal fusion has been developed and is nowadays a common procedure for unstable degenerative spine disorders. In the past several years, studies that highlight the importance of sagittal balance analysis with the restoration of adequate lumbar lordosis, have emerged. However, it remains a challenge to determine the correct amount of lumbar lordosis that is required for each patient to maintain optimal post-fusion sagittal balance. Additionally, the relationship between pelvic incidence (PI) and impact of LL correction has been highlighted in literature. The position of fused vertebrae is of paramount importance, as sagittal alignment should be done with minimizing muscle work during posture. Failure to reach proper sagittal balance can result in compensatory mechanisms such as increased pelvic tilt (PT), cervical and thoracic segment hyperextension, and knee flexion. These compensatory mechanisms have adverse effects such as chronic pain, disability and muscle fatigue. With this study the investigators aim to analyze long-term clinical and spinopelvic radiographic parameter outcomes of patients who underwent a one-level spinal fusion procedure for single level degenerative spondylolisthesis disease at a single institution.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
32

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Dec 2019

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

November 20, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 22, 2019

Completed
20 days until next milestone

Study Start

First participant enrolled

December 12, 2019

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 22, 2022

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 23, 2023

Completed
Last Updated

June 27, 2023

Status Verified

June 1, 2023

Enrollment Period

3 years

First QC Date

November 20, 2019

Last Update Submit

June 25, 2023

Conditions

Keywords

Sagittal balanceLumbar lordosisClinical outcomes

Outcome Measures

Primary Outcomes (3)

  • ODI questionnaire

    The Oswestry Disability Index is an important tool that researchers and disability evaluators use to measure a patient's permanent functional disability. The test is considered the 'gold standard' of low back functional outcome tools. For each section the total possible score is 5. If all 10 sections are completed the maximal score is 50.

    7-9 years after TLIF procedure

  • LL

    Radiographic evaluation of lumbar lordosis (LL): the angle between the upper endplate of the first lumbar vertebrae (L1) and the sacral endplate (S1).

    7-9 years after TLIF procedure

  • SL

    Radiographic evaluation of segmental lordosis (SL): the angle between the cranial endplate of the upper and caudal endplate of the lower vertebrae of the operated segment.

    7-9 years after TLIF procedure

Secondary Outcomes (3)

  • PT

    7-9 years after TLIF procedure

  • SS

    7-9 years after TLIF procedure

  • SVA

    7-9 years after TLIF procedure

Study Arms (1)

TLIF group

Participants with degenerative spondylolysthesis who underwent a single-level TLIF procedure.

Procedure: Single-level TLIF

Interventions

Transforaminal interbody fusion approach, using polyaxial pedicle screws (Xia®, Stryker Spine, Allendale, NJ, USA), combined with a crescent-shaped interbody cage (T-Plus®, Pioneer Surgical Technology, Marquette, MI, USA), bilateral facet joint removal and laminectomy.

TLIF group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants will be selected from patients who underwent a single-level TLIF procedure at Department of Orthopaedic surgery of Ljubljana University medical centre between 2011 and 2013.

You may qualify if:

  • Patients with one-level degenerative spondylolysthesis treated with single-level TLIF at Department of Orthopaedic surgery of Ljubljana University medical centre between 2011 and 2013.
  • TLIF performed at L3/4 or L4/5

You may not qualify if:

  • Patients who refuse to participate in study or do not respond to our invitation
  • Patients with additional instrumental spinal surgery or spinal trauma
  • Patients with additional types of adult spinal deformity
  • Patients with inflammatory spinal conditions
  • Patients with flexion contractures of the hips or knees

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Medical Centre Ljubljana

Ljubljana, 1000, Slovenia

Location

Related Publications (15)

  • Barrey C, Roussouly P, Le Huec JC, D'Acunzi G, Perrin G. Compensatory mechanisms contributing to keep the sagittal balance of the spine. Eur Spine J. 2013 Nov;22 Suppl 6(Suppl 6):S834-41. doi: 10.1007/s00586-013-3030-z. Epub 2013 Sep 20.

    PMID: 24052406BACKGROUND
  • Barrey C, Darnis A. Current strategies for the restoration of adequate lordosis during lumbar fusion. World J Orthop. 2015 Jan 18;6(1):117-26. doi: 10.5312/wjo.v6.i1.117. eCollection 2015 Jan 18.

    PMID: 25621216BACKGROUND
  • Cheng X, Zhang F, Zhang K, Sun X, Zhao C, Li H, Li YM, Zhao J. Effect of Single-Level Transforaminal Lumbar Interbody Fusion on Segmental and Overall Lumbar Lordosis in Patients with Lumbar Degenerative Disease. World Neurosurg. 2018 Jan;109:e244-e251. doi: 10.1016/j.wneu.2017.09.154. Epub 2017 Oct 5.

    PMID: 28987851BACKGROUND
  • Ferrero E, Ould-Slimane M, Gille O, Guigui P; French Spine Society (SFCR). Sagittal spinopelvic alignment in 654 degenerative spondylolisthesis. Eur Spine J. 2015 Jun;24(6):1219-27. doi: 10.1007/s00586-015-3778-4. Epub 2015 Feb 5.

    PMID: 25652553BACKGROUND
  • Fairbank JC, Pynsent PB. The Oswestry Disability Index. Spine (Phila Pa 1976). 2000 Nov 15;25(22):2940-52; discussion 2952. doi: 10.1097/00007632-200011150-00017.

    PMID: 11074683BACKGROUND
  • Kuhta M, Bosnjak K, Vengust R. Failure to maintain segmental lordosis during TLIF for one-level degenerative spondylolisthesis negatively affects clinical outcome 5 years postoperatively: a prospective cohort of 57 patients. Eur Spine J. 2019 Apr;28(4):745-750. doi: 10.1007/s00586-019-05890-w. Epub 2019 Jan 24.

    PMID: 30680634BACKGROUND
  • Le Huec JC, Aunoble S, Philippe L, Nicolas P. Pelvic parameters: origin and significance. Eur Spine J. 2011 Sep;20 Suppl 5(Suppl 5):564-71. doi: 10.1007/s00586-011-1940-1. Epub 2011 Aug 10.

    PMID: 21830079BACKGROUND
  • Le Huec JC, Faundez A, Dominguez D, Hoffmeyer P, Aunoble S. Evidence showing the relationship between sagittal balance and clinical outcomes in surgical treatment of degenerative spinal diseases: a literature review. Int Orthop. 2015 Jan;39(1):87-95. doi: 10.1007/s00264-014-2516-6. Epub 2014 Sep 6.

    PMID: 25192690BACKGROUND
  • Le Huec JC, Hasegawa K. Normative values for the spine shape parameters using 3D standing analysis from a database of 268 asymptomatic Caucasian and Japanese subjects. Eur Spine J. 2016 Nov;25(11):3630-3637. doi: 10.1007/s00586-016-4485-5. Epub 2016 Mar 7.

    PMID: 26951168BACKGROUND
  • Liang Y, Shi W, Jiang C, Chen Z, Liu F, Feng Z, Jiang X. Clinical outcomes and sagittal alignment of single-level unilateral instrumented transforaminal lumbar interbody fusion with a 4 to 5-year follow-up. Eur Spine J. 2015 Nov;24(11):2560-6. doi: 10.1007/s00586-015-3933-y. Epub 2015 Apr 14.

    PMID: 25870077BACKGROUND
  • Morvan G, Mathieu P, Vuillemin V, Guerini H, Bossard P, Zeitoun F, Wybier M. Standardized way for imaging of the sagittal spinal balance. Eur Spine J. 2011 Sep;20 Suppl 5(Suppl 5):602-8. doi: 10.1007/s00586-011-1927-y. Epub 2011 Aug 10.

    PMID: 21830081BACKGROUND
  • Ould-Slimane M, Lenoir T, Dauzac C, Rillardon L, Hoffmann E, Guigui P, Ilharreborde B. Influence of transforaminal lumbar interbody fusion procedures on spinal and pelvic parameters of sagittal balance. Eur Spine J. 2012 Jun;21(6):1200-6. doi: 10.1007/s00586-011-2124-8. Epub 2011 Dec 17.

    PMID: 22179755BACKGROUND
  • Roussouly P, Pinheiro-Franco JL. Biomechanical analysis of the spino-pelvic organization and adaptation in pathology. Eur Spine J. 2011 Sep;20 Suppl 5(Suppl 5):609-18. doi: 10.1007/s00586-011-1928-x. Epub 2011 Aug 2.

    PMID: 21809016BACKGROUND
  • Schwab F, Lafage V, Patel A, Farcy JP. Sagittal plane considerations and the pelvis in the adult patient. Spine (Phila Pa 1976). 2009 Aug 1;34(17):1828-33. doi: 10.1097/BRS.0b013e3181a13c08.

    PMID: 19644334BACKGROUND
  • Tye EY, Alentado VJ, Mroz TE, Orr RD, Steinmetz MP. Comparison of Clinical and Radiographic Outcomes in Patients Receiving Single-Level Transforaminal Lumbar Interbody Fusion With Removal of Unilateral or Bilateral Facet Joints. Spine (Phila Pa 1976). 2016 Sep;41(17):E1039-E1045. doi: 10.1097/BRS.0000000000001535.

    PMID: 26926356BACKGROUND

MeSH Terms

Conditions

Lordosis

Condition Hierarchy (Ancestors)

Spinal CurvaturesSpinal DiseasesBone DiseasesMusculoskeletal Diseases

Study Officials

  • Rok Vengust, M.D, PhD

    Department of Orthopaedic surgery, University Medical Centre Ljubljana

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Resident of Orthopaedic surgery

Study Record Dates

First Submitted

November 20, 2019

First Posted

November 22, 2019

Study Start

December 12, 2019

Primary Completion

December 22, 2022

Study Completion

June 23, 2023

Last Updated

June 27, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will share

All IPD that underlie results in a publication and are in accordance with ethical standards of the National ethics committee of Slovenia on human experimentation and with the Helsinki Declaration of 1975.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
Starting within 1 year after publication.
Access Criteria
IPD and any additional supporting information will be shared by request with the Principal investigator.

Locations