Evidence map›Paper›PMID 32902718›Full record

ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2021

Posterior pelvic ring bone density with implications for percutaneous screw fixation.

Jonathan G Eastman, Trevor J Shelton, Milton Lee Chip Routt, Mark R Adams

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Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.0field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 14 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Jonathan G EastmanDepartment of Orthopaedic Surgery, Davis Medical Center, University of California, 4860 Y Street, Suite 3800, Sacramento, CA, 95817, USA.
Trevor J SheltonDepartment of Orthopaedic Surgery, Davis Medical Center, University of California, 4860 Y Street, Suite 3800, Sacramento, CA, 95817, USA.
Milton Lee Chip RouttThe University of Texas Health Science Center at Houston, 6414 Fannin Street, Suite G.150, Houston, TX, 77030, USA.
Mark R AdamsDepartment of Orthopaedics, Rutgers New Jersey Medical School, 140 Bergen Street D Level, Newark, NJ, 07021, USA. Adamsm4@njms.rutgers.edu.ORCID http://orcid.org/0000-0002-2165-9686
University of California Davis Medical Center · USRutgers, The State University of New Jersey · USThe University of Texas Health Science Center at Houston · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough the second (S2) and third (S3) sacral segments have been established as potential osseous fixation pathways for screw fixation, the S2 body has been demonstrated to have inferior bone density when compared to the body of the first (S1) sacral segment. Caution regarding the use of iliosacral screws at this level has been advised as a result. As transiliac-transsacral screws traverse the lateral cortices of the posterior pelvis, they may be relying on bone with superior density for purchase, which could obviate this concern. The objective of this study was to compare the bone density of the posterior ilium and sacroiliac joint to that of the sacral body at the first (S1), second (S2), and third (S3) sacral levels. MATERIALS AND

methodsA retrospective case series was performed, reviewing the CT scans of 100 patients without prior pelvic trauma. Each CT was confirmed to have available osseous fixation pathways at the first (S1), second (S2), and third (S3) sacral segments. The bone density of the posterior ilium/sacroiliac joint (PISJ) and sacral body (SB) was measured using the embedded standardized Hounsfield units (HU) tool at each sacral level.

resultsThe average S2 PISJ bone density (320.1) was significantly higher than the S1 (286.5) and S3 (278.9) PISJ (p < 0.0001) and S1 and S3 PISJ was not statistically different. The S1 sacral body bone density (231.1) was significantly higher than the S2 (182.1) and S3 (126.8) bone density (p < 0.0001). The PISJ bone density is greater than the sacral body at every sacral level (p < 0.0001).

conclusionThe S2 PISJ bone density is significantly greater than S1. The S1, S2, and S3 PISJ bone density is greater than the sacral body at all sacral levels, and the S1 body has higher bone density than the S2 and S3 bodies. These differences in bone density may have implications for the stability of posterior pelvic ring fixation constructs with regard to screw purchase. LEVEL OF EVIDENCE: Level III-Case cohort series.

Indexed as

Fractures, BonePelvic BonesBone DensityBone ScrewsFracture Fixation, InternalHumansIliumPelvisRetrospective StudiesSacrumIliosacralPosterior pelvic ring bone densityS3Third sacral segmentTranssacral

Identifiers

PMID32902718
OpenAlexW3086993241

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.