Evidence map›Paper›PMID 35772986›Full record

ArticleInternational journal of spine surgery2022

Predictors of Operative Duration in Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis: A Retrospective Cohort Study.

Nishank Mehta, Bhavuk Garg, Tungish Bansal, Aayush Aryal, Nitish Arora, Vivek Gupta

Open access · diamondAbstract read
In one paragraph

Article in International journal of spine surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.1field-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, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Balancing radiographic correction with quality of life: a meta-analysis of selective versus non-selective thoracic fusion in Lenke 1 C AIS.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
  2. Article
  3. Article
  4. Article
  5. Analysis of duration of different stages of surgery in posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS) patients: comparison between severe versus non-severe AIS.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
    Article
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

6 authors at 2 institutions in 1 country.

Nishank MehtaDepartment of Orthopaedics, Jai Prakash Narayan Apex Trauma Centre, New Delhi, India.
Bhavuk GargDepartment of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India drbhavukgarg@gmail.com.
Tungish BansalDepartment of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.
Aayush AryalDepartment of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.
Nitish AroraDepartment of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.
Vivek GuptaDepartment of Community Ophthalmology, All India Institute of Medical Sciences, New Delhi, India.
All India Institute of Medical Sciences · INLok Nayak Jai Prakash Narayan Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccurate prediction of operative duration is necessary for efficient operating room scheduling, minimizing cancellations, shortening waitlists, better risk stratification, and effective preoperative counseling. Prolonged operative duration is also associated with negative patient outcomes. Posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS) is typically a lengthy surgical procedure with variable operative duration. The purpose of this study is to identify patient-, procedure-, and surgeon-specific variables that influence the operative duration in PSF for AIS and determine its impact on early postoperative outcomes.

methodsHospital records of 150 AIS patients who underwent PSF at a single center were retrospectively reviewed. Various patient-, procedure-, and surgeon-specific variables-deemed to be possibly affecting the operative duration-were analyzed. A multivariate regression model was used to identify independent predictors of operative duration. The association between operative duration and early postoperative outcome measures was determined.

resultsThe final model obtained from the multivariate regression analysis included the following factors: experience of the chief surgeon (β = -0.36), Cobb angle of the major structural curve (β = 0.35), number of screws inserted (β = 0.28), coronal deformity angular ratio (β = 0.20), and apical vertebral rotation (β = -0.21 to 0.03). The model could explain 44% of the variability in the operative duration (

conclusionsA set of variables that predict the variability in operative duration during PSF for AIS was identified, with the experience of the chief surgeon and the severity of the curve being the strongest predictors. CLINICAL RELEVANCE: The results of this study emphasize the need for each hospital and surgical team to identify predictors of operative duration in their setup in order to better anticipate prolonged operative duration. LEVEL OF EVIDENCE: 3:

Indexed as

AISidiopathic scoliosisoperative durationscoliosissurgical time

Identifiers

PMID35772986
PMCPMC9650161
OpenAlexW4283733257

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.