NCT02129374

Brief Summary

Lumbar spondylolysis is a relatively common condition that causes severe and perennial back pain in young populations. Conservative treatment of this condition may be futile, and may eventually require surgical treatment such as direct repair of pars defect and a segmental lumbar fusion with an anterior or posterior approach. Recently, of surgical treatment methods for spondylolysis, direct repair surgery of pars defect has been focused due to its inherited strengths. Most importantly, fusion surgery caused the affected segment to lose the nature range of motion and furthermore adjacent segment to be adversely affecting such as adjacent disc disease or degeneration, while direct repair theoretically could preserve the motion of the affected segment, which do not cause the adjacent segment problems as being the fusion surgery, as well as could produce better surgical outcomes with relatively less invasive technique as compared to fusion surgery. Moreover, previous articles have demonstrated that the direct repair surgery for spondylolysis of lumbar spine could achieve great functional and radiological outcomes. However, most of the previous studies was conducted using lower level designed study such as retrospective and small sample size, thereby prior literature does not provide clear information on the therapeutic outcome of direct repair for lumbar spondylolysis, especially for managing spondylolysis of young population. Therefore, The investigators aimed to evaluate and determine the outcomes of direct repair surgery for lumbar spondylolysis in young population. To our knowledge, this is the first report that describes the functional and radiological outcomes of direct repair for spondylolysis in young populations with prospective cohort study design and relatively large sample size.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
163

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2014

Shorter than P25 for not_applicable

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2014

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2014

Completed
29 days until next milestone

First Submitted

Initial submission to the registry

April 30, 2014

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 2, 2014

Completed
Last Updated

May 6, 2014

Status Verified

May 1, 2014

Enrollment Period

3 months

First QC Date

April 30, 2014

Last Update Submit

May 2, 2014

Conditions

Keywords

SpondylolysisLumbar spineYoung populationDirect repairUnion rateFunctional outcome

Outcome Measures

Primary Outcomes (1)

  • Union rate using dynamic radiographs and CT scans

    union rate at postoperative 1 year was evaluated using dynamic radiographs and computed tomography (CT) scans.

    Postoperative 1 year

Secondary Outcomes (6)

  • Pain intensity on VAS

    postoperative 3 months

  • Pain intensity on VAS

    postoperative 6 months

  • Pain intensity on VAS

    postoperative 12 months

  • Functional outcome on ODI and SF-12

    Postoperative 3 months

  • Functional outcome on ODI and SF-12

    Postoperative 6 months

  • +1 more secondary outcomes

Study Arms (2)

Direct repair of pars defect

EXPERIMENTAL

The pars defect was repaired with 4.5mm cortical screw.

Procedure: Direct repair of pars defect

Conservative treatment

NO INTERVENTION

The pars defect of spondylolysis was not repaired with cortical screw.

Interventions

Direct repair at pars defect was performed with 4.5mm cortical screw in young spondylolytic patients.

Also known as: 4.5mm cortical screw
Direct repair of pars defect

Eligibility Criteria

Age20 Years - 30 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • patients for whom conservative treatment for six months and three-times injection treatments had failed
  • a follow-up period of one year or more after surgery

You may not qualify if:

  • patients with abnormal muscle activity or ambulation such as parkinsonism and neuromuscular disease.
  • patient inability to accurately record results of preoperative and postoperative questionnaires due to problems such as a history of stroke, dementia, or major medical illness that required intensive treatment
  • patient follow-up was limited to one year or less

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Armed Forces Yangju Hospital

Yangju, Gyounggido, South Korea

Location

MeSH Terms

Conditions

Spondylolysis

Condition Hierarchy (Ancestors)

SpondylosisSpinal DiseasesBone DiseasesMusculoskeletal Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associated Professor

Study Record Dates

First Submitted

April 30, 2014

First Posted

May 2, 2014

Study Start

January 1, 2014

Primary Completion

April 1, 2014

Study Completion

April 1, 2014

Last Updated

May 6, 2014

Record last verified: 2014-05

Locations