Evidence map›Paper›PMID 35514237›Full record

ArticleBone & joint research2022

Comparison of periprosthetic femoral fracture torque and strain pattern of three types of femoral components in experimental model.

Yasuhiko Takegami, Taisuke Seki, Yusuke Osawa, Shiro Imagama

Open access · goldAbstract read
In one paragraph

Article in Bone & joint research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Yasuhiko TakegamiDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.ORCID 0000-0001-9279-8301
Taisuke SekiDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Yusuke OsawaDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Shiro ImagamaDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Nagoya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsPeriprosthetic hip fractures (PPFs) after total hip arthroplasty are difficult to treat. Therefore, it is important to identify modifiable risk factors such as stem selection to reduce the occurrence of PPFs. This study aimed to clarify differences in fracture torque, surface strain, and fracture type analysis between three different types of cemented stems.

methodsWe conducted biomechanical testing of bone analogues using six cemented stems of three different types: collarless polished tapered (CPT) stem, Versys Advocate (Versys) stem, and Charnley-Marcel-Kerboull (CMK) stem. Experienced surgeons implanted each of these types of stems into six bone analogues, and the analogues were compressed and internally rotated until failure. Torque to fracture and fracture type were recorded. We also measured surface strain distribution using triaxial rosettes.

resultsThere was a significant difference in fracture torque between the three stem types (p = 0.036). Particularly, the median fracture torque for the CPT stem was significantly lower than that for the CMK stem (CPT vs CMK: 164.5 Nm vs 200.5 Nm; p = 0.046). The strain values for the CPT stem were higher than those for the other two stems at the most proximal site. The fracture pattern of the CPT and Versys stems was Vancouver type B, whereas that of the CMK stem was type C.

conclusionOur study suggested that the cobalt-chromium alloy material, polished surface finish, acute-square proximal form, and the absence of a collar may be associated with lower fracture torque, which may be related to PPF. Cite this article:

Indexed as

Biomechanical studybiomechanical testingcemented stemscobalt-chromium alloyfemorafemoral componentsFracture loadhip fracturesperiprosthetic femoral fracturePeriprosthetic femoral fracturesStem designstrainedtaper-slip stemstotal hip arthroplasty

Identifiers

PMID35514237
PMCPMC9130673
OpenAlexW4229023744

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.