Evidence map›Paper›PMID 36889901›Full record

ArticleInternational journal of spine surgery2023

Lateral Lumbar Interbody Fusion Using Expandable vs Static Titanium Interbody Cages: A Prospective Cohort Study of Clinical and Radiographic Outcomes.

Cecilia W Huo, Gregory M Malham, Dean T Biddau, Timothy Chung, Yi Yuen Wang

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in International journal of spine surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Use of expandable lateral lumbar interbody devices to restore disc height and segmental lordosis: a cadaveric study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 4 countries.

Cecilia W HuoDepartment of Neurosurgery, The Royal Melbourne Hospital, Melbourne, VIC, Australia.
Gregory M MalhamNeuroscience Institute, Epworth Hospital, Melbourne, VIC, Australia.
Dean T BiddauNeuroscience Institute, Epworth Hospital, Melbourne, VIC, Australia.
Timothy ChungDepartment of Orthopedic surgery, The Royal Melbourne Hospital, Melbourne, VIC, Australia.
Yi Yuen WangNeuroscience Institute, Epworth Hospital, Melbourne, VIC, Australia y.wang@keyholeneurosurgery.com.au.
Epworth Hospital · AUThe Royal Melbourne Hospital · AUSwinburne University of Technology · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExpandable cages are a recent development employed to reduce subsidence and improve fusion compared with static cages as they alleviate the need for repeated trialing or overdistraction of the disc space. This study aimed to compare the radiographic and clinical outcomes in patients undergoing lateral lumbar interbody fusion (LLIF) with either an expandable or static titanium cage.

methodsThis was a prospective study of 98 consecutive patients undergoing LLIF performed over a 2-year period, with the first 50 patients receiving static cages and the following 48 receiving expandable cages. Radiographic evaluation included interbody fusion status, cage subsidence, and change in segmental lordosis and disc height. Clinical evaluation assessed patient-reported outcome measures (PROMs), including the Oswestry Disability Index, visual analog scale (VAS) for back and leg pain, and short form-12 physical and mental health survey scores collected at 3, 6, and 12 months postoperatively.

resultsThe 98 patients had 169 cages impacted (84 expandable vs 85 static). Mean age was 69.2 years, and 53.1% were women. There was no significant difference between the 2 groups in terms of age, gender, body mass index, or smoking status. The expandable cage group had higher rates of interbody fusion (94.0% vs 82.9%,

conclusionsExpandable lateral interbody spacers resulted in significantly improved fusion rates with reduced subsidence risks and statistically significant improvement in PROMs up to 12 months postoperatively compared with impacted lateral static cages. CLINICAL RELEVANCE: The data provide clinical relevance in favoring expandable cages over static cages for enhanced fusion outcomes in lumbar fusions. LEVEL OF EVIDENCE: 2:

Indexed as

expandable cagefusion ratelateral Lumbar interbody fusionradiographic outcomesspine surgerysubsidence

Identifiers

PMID36889901
PMCPMC10165658
OpenAlexW4323542839

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.