Evidence map›Paper›PMID 25338110›Full record

Trial reportInternational orthopaedics2015

Porous titanium construct cup compared to porous coated titanium cup in total hip arthroplasty. A randomised controlled trial.

Mats Salemyr, Olle Muren, Thomas Eisler, Henrik Bodén, Ghazi Chammout, André Stark, Olof Sköldenberg

Registry-linked trialAbstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in International orthopaedics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06287021 (Bone Remodeling Around a 3D-printed Highly-porous Trabecular Titanium Acetabular Cup in Primary Total Hip Arthroplasty), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–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.

NCT06287021 narecruitingnot on this mapstarted 2024, after this paper: background citation

Bone Remodeling Around a 3D-printed Highly-porous Trabecular Titanium Acetabular Cup in Primary Total Hip Arthroplasty

TypeinterventionalSponsorPermedica spaRan2024 to 2028Enrolled50ConditionsTotal Hip ArthroplastyArmsJump System Traser® cup, Jump System HAX-Pore® cup
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  10. Osteoblastic cell response on high-rough titanium coatings by cold spray.Journal of materials science. Materials in medicine · 2018
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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

7 authors.

Mats SalemyrUnit of Orthopaedics, Department of Clinical Sciences at Danderyd Hospital, Karolinska Institutet, 182 88, Stockholm, Sweden.
Olle Muren
Thomas Eisler
Henrik Bodén
Ghazi Chammout
André Stark
Olof Sköldenberg

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to determine if a new titanium cup with increased porosity resulted in different periacetabular bone loss and migration compared to a porous coated cup.

methodsFifty-one patients with primary hip osteoarthritis were randomized to either a cup with porous titanium construct backside (porous titanium group, n = 25) or a conventional porous coated titanium cup (control group, n = 26). The primary outcome variable was change in periacetabular bone mineral density two years after surgery measured with dual energy X-ray absorptiometry (DXA). Secondary outcomes were implant fixation measured with radiostereometry (RSA) and clinical outcome scores.

resultsThe pattern of bone remodelling was similar in the two groups with almost complete restoration to baseline values. BMD diminished in the two proximal zones and increased in the two distal zones. After minimal migration up to six months all implants in both groups became stable. We found no difference between the two groups in clinical outcome scores.

conclusionsIn this prospective, randomized, controlled trial on a new porous titanium cup we found, compared to the control group, no clinically relevant differences regarding periacetabular bone preservation, implant fixation or clinical outcome up to two years postoperatively.

Indexed as

Hip ProsthesisProsthesis DesignAbsorptiometry, PhotonAcetabulumAdultAgedArthroplasty, Replacement, HipBone DensityFemaleHumansMaleMiddle AgedOsteoarthritis, HipPorosityProspective StudiesTitaniumTitanium

Identifiers

What OpenQuestion holds

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Registered trials

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.