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Selecting the SSV-1 as LIV in Scheuermann's Kyphosis

NCT05953792 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 74

Last updated 2023-07-20

No results posted yet for this study

Summary

The proper selection of the lowest instrumented vertebra (LIV) remains controversial in the surgical treatment of Scheuermann's disease and there is a paucity of studies investigating the clinical outcomes of fusion surgery when selecting the vertebra one level proximal to the sagittal stable vertebra (SSV-1) as LIV. The purpose of this study is to investigate whether SSV-1 could be a valid LIV for Scheuermann kyphosis (SK) patients with different curve patterns.

Conditions

  • Scheuermann's Kyphosis

Interventions

PROCEDURE

Select the vertebra above sagittal stable vertebra as the distal fusion level

The surgeries were performed by the same surgical team. Multi-level Ponte osteotomies were performed across the apex of the kyphosis after complete exposure of the spine, with resection of supra- and inter-spinous ligaments, ligamentum flavum, and the whole facet joints. After placement of the pedicle screws at the expected fusion levels, pre-contoured rods were attached to the screws followed by segmental compression. During rod placement, two to three rounds of compression in the area with Ponte osteotomies were employed to enhance kyphosis correction. Satellite rods were routinely added to long rods and implanted with duet screws. The final tightening was performed, and the posterior fusion was completed with a mixture of local and allogeneic bone. Due attention was given to preserving the posterior ligamentous structures at the upper and lower junctional areas.

Sponsors & Collaborators

  • The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

    lead OTHER

Eligibility

Min Age
10 Years
Max Age
20 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-01-01
Primary Completion
2022-09-30
Completion
2022-12-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05953792 on ClinicalTrials.gov