Evidence map›Paper›PMID 39871083›Full record

ArticleSpine deformity2025

Where does the tether break in vertebral body tethering cases? Clinical insights from revision cases after tether breakage.

Mahmoud Alkharsawi, Alice Baroncini, Dong-Gune Chang, Miguel Pishnamaz, Per David Trobisch

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Article in Spine deformity, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Mahmoud AlkharsawiDepartment of Spine Surgery, Eifelklinik St Brigida, St. Brigida Eifelklinik, Kammerbruchst. 8, 52152, Simmerath, Germany. M.alkharsawi@gmail.com.ORCID http://orcid.org/0000-0002-5492-9419
Alice BaronciniIRCCS Ospedale Galeazzi Sant'Ambrogio, Milan, Italy.
Dong-Gune ChangDepartment of Orthopedic Surgery, College of Medicine, Inje University Sanggye Paik Hospital, Inje University, Seoul, Republic of Korea.
Miguel PishnamazDepartment of Orthopaedic Trauma and Reconstructive Surgery, University Hospital RWTH, Aachen, Germany.
Per David TrobischDepartment of Spine Surgery, Eifelklinik St Brigida, St. Brigida Eifelklinik, Kammerbruchst. 8, 52152, Simmerath, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the sites where the tether breaks in vertebral body tethering (VBT) cases.

methodsIntraoperative evaluation of broken tethers in patients who had anterior revision. INCLUSION CRITERIA: anterior revision of VBT cases with explantation of the full implant and photo documentation. Eight patients met the inclusion criteria. The primary variable of interest was the location of tether breakage in relation to the vertebral curve and the tether-screw interface. Another variable of interest was to evaluate the difference in breakage rates between anterior and posterior tethers in double tether cases.

resultsSixty tethers bridging the intervertebral disc within this cohort of eight patients were found. Seven implants were removed from thoracolumbar curves and one implant from a thoracic curve. We identified 32 tether breakages. Double tethers were used in six patients. In these six cases, 15 breakages were found in the posterior tether and 13 in the anterior tether. Four cases (50%) exhibited breakages at the apex, eight cases (100%) at the lowest instrumented vertebra (LIV), and five cases (63%) at the uppermost-instrumented vertebra (UIV). Five tether breakages (in three cases with double tether) were observed at the screw sites, while the remaining 27 exhibited cord breakages near the intervertebral discs. In double tether systems, statistical analysis did not reveal any significant difference in breakage rates between anterior and posterior tethers.

conclusionsIn VBT cases, the tether breaks mostly at the level of the intervertebral disc, adjacent to the lowest instrumented vertebra. LEVEL OF EVIDENCE: Level IV (Case series with no comparison group).

Indexed as

Bone ScrewsLumbar VertebraePedicle ScrewsScoliosisSpinal FusionThoracic VertebraeVertebral BodyAdultAgedFemaleHumansIntervertebral DiscMaleMiddle AgedReoperationRetrospective StudiesBodyBreakageScoliosisTetherTetheringVertebral

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.