Evidence map›Paper›PMID 34670073›Full record

ArticleNeurospine2021

Multiple-Rod Constructs Do Not Reduce Pseudarthrosis and Rod Fracture After Pedicle Subtraction Osteotomy for Adult Spinal Deformity Correction but Improve Quality of Life.

Anouar Bourghli, Louis Boissière, David Kieser, Daniel Larrieu, Javier Pizones, Ahmet Alanay, Ferran Pellise, Franck Kleinstück, Ibrahim Obeid, European Spine Study Group

Open access · diamondAbstract read
In one paragraph

Article in Neurospine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
5.2field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Thoracic pedicle Subtraction osteotomies: a systematic review of indications, correction magnitudes, and safety profile.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Pooled it
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  3. Review
  4. Lumbar pedicle subtraction osteotomy: techniques and outcomes.North American Spine Society journal · 2024
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  6. Sagittal alignment of diverse mechanical complications following adult spinal deformity surgery.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
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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

10 authors at 6 institutions in 5 countries.

Anouar BourghliOrthopedic and Spinal Surgery Department, Kingdom Hospital, Riyadh, Saudi Arabia.
Louis BoissièreClinique du Dos, Elsan Jean Villar Private hospital, Bordeaux, France.
David KieserDepartment of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch School of Medicine, Dunedin, New Zealand.
Daniel LarrieuClinique du Dos, Elsan Jean Villar Private hospital, Bordeaux, France.
Javier PizonesSpine Surgery Unit, Hospital Universitario La Paz, Madrid, Spain.
Ahmet AlanaySpine Surgery Unit, Acibadem Maslak Hospital, Istanbul, Turkey.
Ferran PelliseSpine Surgery Unit, Hospital Universitario Val Hebron, Barcelona, Spain.
Franck KleinstückSpine Center, Schulthess Klinik, Zurich, Switzerland.
Ibrahim ObeidClinique du Dos, Elsan Jean Villar Private hospital, Bordeaux, France.
European Spine Study Group
Acıbadem University · TRHospital Universitario La Paz · ESRiyadh Armed Forces Hospital · SASchulthess-Klinik · CHUniversity of Otago · NZVall d'Hebron Hospital Universitari · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare the radiological and functional outcomes and complications of adult spinal deformity patients who underwent a pedicle subtraction osteotomy (PSO) below L2 but categorized according to their construct where either 2-rod or multiple-rod construct is applied.

methodsSixty-seven patients met the inclusion criteria, and were categorized into 3 groups: 2 rods (2R), multiple rods around the PSO (MRP), multiple rods around the PSO and lumbosacral junction (MRL). Demographic data, operative parameters, spinopelvic parameters, functional outcomes, and complications were collected.

resultsHealth-related quality of life scores showed a better outcome at 6 months and last follow-up visits in the MRP and MRL groups which were noted on different domains of Scoliosis Research Society-22 questionnaire, 36-item Short Form Health Surve, and Oswestry Disability Index scores (p < 0.05). The 3 groups showed similar rates of rod-related complications with no significant difference (p = 0.95). And inside each group, distribution of complications between pseudarthrosis with revision and rod fracture without revision was also similar (p = 0.99).

conclusionThe use of multiple rods across the PSO did not show a better outcome when compared to single rods in terms of incidence and types of mechanical complications. However, better postoperative coronal alignment and health-related quality of life scores in the multiple rods group could be seen demonstrating an improved functional outcome.

Indexed as

Adult spine deformityMultiple-rod constructPedicle subtraction osteotomyPseudarthrosisRevisionRod fracture

Identifiers

PMID34670073
PMCPMC8752720
OpenAlexW3205523940

What OpenQuestion holds

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LicenceCC BY-NC
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.