Evidence map›Paper›PMID 42290916›Full record

ArticleCase reports in orthopedics2026

Case Report: Pseudotumor due to Trunnionosis in Ceramic-on-Ceramic THA Monoblock Acetabular Cup Disengagement.

M Olivieri, R Guarracino, D Lup, A Maso, E Storni, S Squarzoni, V Peccerillo, P Cimatti, D Dallari, P Caldora

Abstract read
In one paragraph

Article in Case reports in orthopedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

10 authors.

M OlivieriDepartment of Orthopedics, Centro Chirurgico Toscano, Arezzo, Italy.
R GuarracinoDepartment of Orthopedics, Centro Chirurgico Toscano, Arezzo, Italy.
D LupDepartment of Orthopedics, Centro Chirurgico Toscano, Arezzo, Italy.
A MasoLaboratory of Microbiology and GMP Quality Control, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy, ior.it.
E StorniLaboratory of Microbiology and GMP Quality Control, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy, ior.it.
S SquarzoniCNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza"-Unit of Bologna, Bologna, Italy.
V PeccerilloNursing, Technical and Rehabilitation Assistance Service, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy, ior.it.
P CimattiReconstructive Orthopaedic Surgery Innovative Techniques-Musculoskeletal Tissue Bank, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy, ior.it.ORCID https://orcid.org/0009-0002-2478-9395
D DallariReconstructive Orthopaedic Surgery Innovative Techniques-Musculoskeletal Tissue Bank, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy, ior.it.
P CaldoraDepartment of Orthopedics, Centro Chirurgico Toscano, Arezzo, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Adverse local tissue reaction (ALTR) and pseudotumor formation, representing inflammatory responses to wear debris that lead to osteolytic lesions, remain major long-term complications of total hip replacement. Hard-bearing total hip prostheses with improved tribological properties-particularly large-diameter head (LDH) ceramic-on-ceramic (CoC) bearings and preassembled cup designs-have been introduced into clinical practice to minimize wear, increase the range of motion (ROM), and reduce dislocation rates. We describe the case of a young asymptomatic patient with a CoC total hip arthroplasty (THA) featuring a monoblock acetabular component, in whom a pseudotumor was incidentally detected. The lesion was associated with trunnionosis following spontaneous liner disassembly, which occurred without any clinical symptoms or audible signs such as the typical hip "clunk." This case highlights the diagnostic challenges in identifying periprosthetic adverse reactions in asymptomatic patients and emphasizes the importance of timely recognition to prevent technically demanding revision procedures in catastrophic implant failures.

Indexed as

ceramic-on-ceramic THAdisassemblyearly diagnosismonoblock acetabular componentpseudotumor

Identifiers

PMID42290916
PMCPMC13260662

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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.