Failed total hip arthroplasty MRI (Milan)
Failed Total Hip Arthroplasty: Diagnostic Performance of Conventional MRI Features and Locoregional Lymphadenopathy to Identify Infected Implants
Pelvis MRI of patients with a failed total hip arthroplasty, read for periprosthetic findings and regional lymph nodes to tell infected from aseptic failure, using a metal artifact reduction protocol at 1.5 T. Only a spreadsheet of readings is public; images are not shared.
Overview
A retrospective cohort from the IRCCS Galeazzi Orthopaedic Institute in Milan of patients whose total hip replacement had failed and who were imaged with pelvis MRI before revision surgery. The study tested whether MRI signs around the implant, and the number and size of regional lymph nodes on the operated side compared with the other side, separate infected implants from aseptic failure such as loosening or polyethylene wear. The authors deposited a spreadsheet of their per-patient readings on Zenodo under CC BY 4.0. The MR images themselves are not offered.
Composition
119 patients, 66 of them women, with a mean age of 66.9 years (SD 12.4). In the public spreadsheet, 38 patients are marked as having an infected implant and 81 as aseptic failures, with the failure cause recorded for the aseptic group.
Acquisition
All patients had pelvis MRI at 1.5 T with a metal artifact reduction (MARS) protocol that included short tau inversion recovery and turbo spin-echo T1- and T2-weighted sequences. Scanner vendor and further parameters are given only in the full article, which was not openly accessible for this entry.
Annotations
Readers scored each scan for periprosthetic bone destruction, soft-tissue mass, effusion, synovitis, lamellated synovitis, extracapsular oedema, fibrous periprosthetic membrane, bone oedema and extracapsular collection or sinus tract. They counted and measured inguinal, obturator and iliac lymph nodes on both sides, from which the authors derived ratio and difference indices of node size and number. The spreadsheet also holds C-reactive protein, erythrocyte sedimentation rate, white blood cell count and the isolated microorganism.
Known limitations
- Only tabular readings and clinical values are public; no images or segmentations are shared.
- Single centre, single field strength and a retrospective design.
- Some spreadsheet column headers and free-text entries are in Italian.
- Details beyond the abstract (vendor, reader count, reference standard) come from the full article and are not recorded here.
Cohort
Aggregate numbers from the sources below. Bars are relative to the 119 subjects.
Sex
- Female 66 55%
- Male 53 45%
Abstract: Population in Albano et al. 2021, Journal of Magnetic Resonance Imaging (abstract); column Sesso in Infected PTA repository.xlsx (CC BY 4.0), one row per patient
Field strength
- 1.5 T 119 100%
Abstract: Field strength/sequences in Albano et al. 2021, Journal of Magnetic Resonance Imaging (abstract)
Age
mean 66.9 ± 12.4
No age bins reported.
Abstract: Population in Albano et al. 2021, Journal of Magnetic Resonance Imaging (abstract)
Condition
Groups can overlap
- Periprosthetic joint infection 38 32%
column PTA Settica in Infected PTA repository.xlsx (CC BY 4.0), one row per patient
Contrast combinations
How many subjects have exactly each set of contrasts.
| T1w | T2w | STIR | Subjects with exactly this set |
|---|---|---|---|
119 |
Abstract: Field strength/sequences in Albano et al. 2021, Journal of Magnetic Resonance Imaging (abstract)
License and access
Our reading of the license, not legal advice. Before you use the data, read the original license and confirm that your use is allowed. We take no responsibility for how you use a dataset. Full disclaimer
The data are not available outside the institution or study that holds them
The Zenodo record holds one spreadsheet with one row per patient: sex, age, inflammatory blood markers, infection status, failure cause, lymph node counts and sizes, and the presence of each MRI feature. It is openly downloadable under CC BY 4.0. No route to the MR images is published.
Different parts of the data carry different licenses. The summary on the right shows the most restrictive answer per rule.
No published license or data use terms
The data holder has published no license and no data use terms. Any use, sharing or commercial right has to be agreed with the data holder, and nothing can be assumed to be allowed. Default copyright and data protection law still apply.
Neither the Zenodo record nor the paper abstract offers the images or states terms for them.
What you can do
- Commercial use Not stated
- Not stated
- Train ML models Not stated
- Create derived data Not stated
- Publish results Not stated
What you can share
- Share the data Not stated
- Share derived data Not stated
- Share trained models Not stated
What you must do
- Cite or credit Not stated
- Share alike Not stated
- Sign an agreement Not stated
- Ethics approval Not stated
- Manuscript review Not stated
- Release code Not stated
- Return results Not stated
- Delete after use Not stated
Limits
- No re-identification Not stated
- Location limits Not stated
Creative Commons Attribution 4.0 International
Use, share and adapt the data for any purpose, including commercial use, as long as you credit the creators.
What you can do
- Yes
- Yes
- Yes
- Yes
- Yes
What you can share
- Yes
- Yes
- Yes
What you must do
- Yes
- Share alike No
- No
- No
- Manuscript review No
- Release code No
- Return results No
- Delete after use No
Limits
- No
- Location limits No
Citation
Albano D, Messina C, Zagra L, Andreata M, De Vecchi E, Gitto S, Sconfienza LM. Failed Total Hip Arthroplasty: Diagnostic Performance of Conventional MRI Features and Locoregional Lymphadenopathy to Identify Infected Implants. J Magn Reson Imaging 53(1):201-210 (2021). doi:10.1002/jmri.27314
Sources
Every number on this page comes from one of these documents. Each chart names the table or page it is taken from. The raw numbers are in stats.csv.