Evidence map›Paper›PMID 33863307›Full record

ReviewBMC musculoskeletal disorders2021

Bilateral neck fracture in bimodular femoral stem after primary total hip arthroplasty: a case report.

Samo K Fokter, Nenad Gubeljak, Jožef Predan, Jure Sevšek, Jan Zajc, Zmago Krajnc

Open access · goldAbstract readCase ReportsReview
In one paragraph

Review in BMC musculoskeletal disorders, 2021. 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
1.3field-weighted citation impact, top 21% 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

1 citing paper in PubMed, 6 citations in OpenAlex.

  1. Review
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 3 institutions in 1 country.

Samo K FokterDepartment of Orthopaedic Surgery, University Medical Centre, 5 Ljubljanska street, SLO-2000, Maribor, Slovenia.ORCID https://orcid.org/0000-0002-1902-8447
Nenad GubeljakFaculty of Mechanical Engineering, University of Maribor, 17 Smetanova street, SLO-2000, Maribor, Slovenia.
Jožef PredanFaculty of Mechanical Engineering, University of Maribor, 17 Smetanova street, SLO-2000, Maribor, Slovenia.
Jure SevšekSlovenj Gradec General Hospital, 1 Gosposvetska road, SLO-2380, Slovenj Gradec, Slovenia.
Jan ZajcDepartment of Orthopaedic Surgery, University Medical Centre, 5 Ljubljanska street, SLO-2000, Maribor, Slovenia. jzajc11@gmail.com.ORCID http://orcid.org/0000-0001-6240-3989
Zmago KrajncDepartment of Orthopaedic Surgery, University Medical Centre, 5 Ljubljanska street, SLO-2000, Maribor, Slovenia.
University Clinical Centre Maribor · SIUniversity of Maribor · SISplošna Bolnišnica Slovenj Gradec · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBi-modular stems were introduced in primary total hip arthroplasty (THA) to enable better control of the femoral offset, leg length, and hip stability. Despite numerous reports on modular femoral neck fractures, some designs are still marketed worldwide. While the risk factors for the sudden failure are multifactorial and mostly known, the timing of this new THA complication is not predictable by any means. CASE PRESENTATION: In this report, the literature regarding one of the most popular bi-modular stems with specific neck-stem coupling (oval Morse taper) is reviewed and illustrated with a case of bilateral modular neck fracture in a patient with idiopathic aseptic necrosis of femoral heads treated with primary bi-modular THA. Because of bilateral modular femoral neck fracture, which occurred 3 years on the left side and 20 years after implantation on the right side, the patient required a total of 6 revisions and 208 days of hospitalized care.

conclusionTo our knowledge, this is the first report of bilateral modular neck fracture in a single patient. Even though the same surgeon performed both operations and used the same neck length and orientation, fractures occurred with a 17-year time difference after implantation. This shows that we cannot predict with certainty when a fracture might occur. Orthopaedic surgeons should use bi-modular stem designs for primary THA very cautiously.

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisFemurHumansProsthesis DesignProsthesis FailureReoperationBi-modular femoral stemCase reportModular femoral neckNeck fractureTaper corrosionTitanium alloyTotal hip arthroplasty complication

Identifiers

PMID33863307
PMCPMC8050927
OpenAlexW3154822310

What OpenQuestion holds

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LicenceCC BY
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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.