Perspective Analysis of Coronal Imbalance in Degenerative Scoliosis

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

COMPLETED

Total Enrollment

284 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-01-31

Study Completion Date

2015-01-31

Brief Summary

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Currently there is paucity of information on the prevalence of pre-operative coronal imbalance in patients with degenerative lumbar scoliosis (DLS) and its influence on surgical outcomes. This study aims to investigate in DLS, the prevalence of coronal imbalance, to propose a novel classification system and to investigate whether pre-operative coronal imbalance affects clinical outcomes following osteotomy. A total of 284 DLS patients were recruited.

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Detailed Description

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A total of 284 DLS patients were recruited into this two-stage study, among which 69 patients were treated by posterior-only correction and the remaining 215 patients received conservative treatment. Using pre-operative long-cassette X-ray films, all patients were classified based on coronal balance distance (CBD) defined as the horizontal distance between C7 plumb line and central sacral vertical line: Type A, CBD \< 3cm; Type B, CBD \> 3cm and C7PL shifts to the concave side of curve; Type C, CBD \> 3cm and C7PL shifts to the convex side of curve. The prevalence of pre-operative coronal imbalance was calculated for stage I study. Post-operative CBD in patients who received surgery was measured to evaluate clinical outcomes for stage II study.

Conditions

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Scoliosis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Pre-operative group

Respectively recruited patients with DLS. Patients in this group were not surgically treatment. Only pre-operative radiographic parameters were measured.

No interventions assigned to this group