Evidence map›Paper›PMID 36147379›Full record

ArticleJournal of clinical orthopaedics and trauma2022

Subsidence of monoblock and modular titanium fluted tapered stems in revision hip arthroplasty: A retrospective multicentre comparison study.

Eoghan Pomeroy, Seán O Flynn, Mihai Grigoras, Terence P Murphy, Alexandra I Stavrakis, Fiachra E Rowan

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical orthopaedics and trauma, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Efficacy and safety of modular versus monoblock stems in revision total hip arthroplasty: a systematic review and meta-analysis.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2023
    Pooled it
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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

6 authors at 2 institutions in 2 countries.

Eoghan PomeroyDepartment of Orthopaedic Surgery, University Hospital Waterford, Waterford, Ireland.
Seán O FlynnDepartment of Orthopaedic Surgery, University Hospital Waterford, Waterford, Ireland.
Mihai GrigorasDepartment of Orthopaedic Surgery, University Hospital Waterford, Waterford, Ireland.
Terence P MurphyDepartment of Orthopaedic Surgery, University Hospital Waterford, Waterford, Ireland.
Alexandra I StavrakisDepartment of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, 10833 Le Conte Avenue, 76-143 CHS, Los Angeles, CA, 90095-6902, USA.
Fiachra E RowanDepartment of Orthopaedic Surgery, University Hospital Waterford, Waterford, Ireland.
University Hospital Waterford · IEUniversity of California, Los Angeles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Tapered, fluted, titanium (TFT) stems have shown good clinical outcomes in revision total hip arthroplasty (rTHA), however concerns exist regarding early subsidence. This study compares subsidence between a modern monoblock 3-degree and a modular 2-degree TFT stem in rTHA. Methods: A retrospective, international multicentre comparative study was conducted including 64 rTHA in 63 patients. A monoblock TFT stem was used in 37 cases and a modular TFT stem was used in 27 cases. Patient demographics, Paprosky femoral bone loss classification, bicortical contact and stem subsidence were recorded at minimum four week follow up. Results: There was no statistically significant difference in overall subsidence (p = 0.318) or the rate of subsidence >10 mm between stems. Mean subsidence was 2.13 mm in the monoblock group and 3.15 mm in the modular group. Two stems subsided >10 mm: one in each group. There was no difference in bicortical contact between groups (p = 0.98). No re-revisions were performed. Conclusions: We found no difference in subsidence between the two stems. Surgeons may consider the use of monoblock stems in rTHA as they have comparably low rates of subsidence and eliminate the small but potentially catastrophic risk of implant fracture at modular junctions associated with modular stems.

Indexed as

Hip replacementModularMonoblockRevisionSubsidence

Identifiers

PMID36147379
PMCPMC9486022
OpenAlexW4296010619

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.