Evidence map›Paper›PMID 29204734›Full record

ReviewEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2018

Basic concepts in metal work failure after metastatic spine tumour surgery.

Naresh Kumar, Ravish Patel, Anshuja Charvi Wadhwa, Aravind Kumar, Helena Maria Milavec, Dhiraj Sonawane, Gurpal Singh, Lorin Michael Benneker

Abstract readReview
PubMed Publisher
In one paragraph

Review in 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, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.2field-weighted citation impact, top 19% 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, 21 citations in OpenAlex.

  1. [Surgical management of spinal metastases].Orthopadie (Heidelberg, Germany) · 2026
    Review
  2. Article
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  4. Novel 3D printable PEEK-HA-MgEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2023
    Article
  5. Design and 3D printing of novel titanium spine rods with lower flexural modulus and stiffness profile with optimised imaging compatibility.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 · 2023
    Article
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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

8 authors at 3 institutions in 2 countries.

Naresh KumarDepartment of Orthopaedic Surgery, National University Hospital, Singapore, 119074, Singapore. dosksn@nus.edu.sg.ORCID http://orcid.org/0000-0003-4538-5031
Ravish PatelDepartment of Orthopaedic Surgery, National University Hospital, Singapore, 119074, Singapore.
Anshuja Charvi WadhwaDepartment of Orthopaedic Surgery, Khoo Teck Puat Hospital, Singapore, 768824, Singapore.
Aravind KumarDepartment of Orthopaedic Surgery, Khoo Teck Puat Hospital, Singapore, 768824, Singapore.
Helena Maria MilavecDepartment of Orthopaedic Surgery, Inselspital, University of Bern, Bern, Switzerland.
Dhiraj SonawaneDepartment of Orthopaedic Surgery, National University Hospital, Singapore, 119074, Singapore.
Gurpal SinghDepartment of Orthopaedic Surgery, National University Hospital, Singapore, 119074, Singapore.
Lorin Michael BennekerDepartment of Orthopaedic Surgery, Inselspital, University of Bern, Bern, Switzerland.
National University Hospital · SGKhoo Teck Puat Hospital · SGUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe development of spinal implants marks a watershed in the evolution of metastatic spine tumour surgery (MSTS), which has evolved from standalone decompressive laminectomy to instrumented stabilization and decompression with reconstruction when necessary. Fusion may not be feasible after MSTS due to poor quality of graft host bed along with adjunct chemotherapy and/or radiotherapy postoperatively. With an increase in the survival of patients with spinal tumours, there is a probability of an increase in the rate of implant failure. This review aims to help establish a clear understanding of implants/constructs used in MSTS and to highlight the fundamental biomechanics of implant/construct failures.

methodsPublished literature on implant failure after spine surgery and MSTS has been reviewed. The evolution of spinal implants and their role in MSTS has been briefly described. The review defines implant/construct failures using radiological parameters that are practical, feasible, and derived from historical descriptions. We have discussed common modes of implant/construct failure after MSTS to allow further understanding, interception, and prevention of catastrophic failure.

resultsImplant failure rates in MSTS are in the range of 2-8%. Variability in patterns of failure has been observed based on anatomical region and the type of constructs used. Patients with construct/implant failures may or may not be symptomatic and present either as early (< 3months) or late failures (> 3months). It has been noted that not all the implant failures after MSTS result in revisions.

conclusionBased on the observed radiological criteria and clinical presentations, we have proposed a clinico-radiological classification for implant/construct failure after MSTS.

Indexed as

Decompression, SurgicalHumansMetalsProstheses and ImplantsProsthesis FailureSpinal NeoplasmsSpineMetalsAsymptomatic implant failureEarly failureLate failureMetastatic spine tumour surgerySymptomatic implant failure

Identifiers

PMID29204734
OpenAlexW2773915841

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.