Evidence map›Paper›PMID 36243781›Full record

ArticleArchives of orthopaedic and trauma surgery2023

Novel metaphyseal porous titanium cones allow favorable outcomes in revision total knee arthroplasty.

Ittai Shichman, Christian Oakley, Jore H Willems, Gijs G van Hellemondt, Petra Heesterbeek, Joshua Rozell, Scott Marwin, Ran Schwarzkopf

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Article in Archives of orthopaedic and trauma surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
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  5. 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

8 authors at 3 institutions in 3 countries.

Ittai ShichmanDivision of Adult Reconstruction, Department of Orthopedic Surgery, NYU Langone Health, 301 East 17Th Street, New York, NY, 10003, USA.ORCID http://orcid.org/0000-0003-1478-8671
Christian OakleyDivision of Adult Reconstruction, Department of Orthopedic Surgery, NYU Langone Health, 301 East 17Th Street, New York, NY, 10003, USA.
Jore H WillemsDepartment of Orthopedic Surgery, Sint Maartensklinek, Ubbergen, Gelderland, The Netherlands.
Gijs G van HellemondtDepartment of Orthopedic Surgery, Sint Maartensklinek, Ubbergen, Gelderland, The Netherlands.
Petra HeesterbeekResearch Department, Sint Maartensklinek, Ubbergen, Gelderland, The Netherlands.
Joshua RozellDivision of Adult Reconstruction, Department of Orthopedic Surgery, NYU Langone Health, 301 East 17Th Street, New York, NY, 10003, USA.
Scott MarwinDivision of Adult Reconstruction, Department of Orthopedic Surgery, NYU Langone Health, 301 East 17Th Street, New York, NY, 10003, USA.
Ran SchwarzkopfDivision of Adult Reconstruction, Department of Orthopedic Surgery, NYU Langone Health, 301 East 17Th Street, New York, NY, 10003, USA. Ran.Schwarzkopf@nyulangone.org.
Sint Maartenskliniek · NLNYU Langone Health · USTel Aviv Sourasky Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionLoosening and migration are common modes of aseptic failure following complex revision total knee arthroplasty (rTKA). Metaphyseal cones allow surgeons to negotiate the loss of femoral and tibial bone stock while obtaining stable bony fixation. This study examines the mid-term functional and radiographic outcomes in patients undergoing rTKA utilizing a novel metaphyseal cone system with stems of variable length and fixation methods.

methodsThis two-center retrospective study examined all patients who underwent rTKA with a novel porous, titanium tibial or femoral cone in combination with a stem of variable length and fixation who had a minimum follow-up of 2-years. Outcome analysis was separated into tibial and femoral cones as well as the stem fixation method (hybrid vs. fully cemented).

resultsOverall, 123 patients who received 156 cone implants were included (74 [60.2%] tibial only, 16 [13.0%] femoral only, and 33 [26.8%] simultaneous tibial and femoral) with a mean follow-up of 2.76 ± 0.66 years. At 2-years of follow-up the total cohort demonstrated 94.3% freedom from all-cause re-revisions, 97.6% freedom from aseptic re-revisions, and 99.4% of radiographic cone osteointegration. All-cause revision rates did not differ between stem fixation techniques in both the tibial and femoral cone groups.

conclusionThe use of a novel porous titanium femoral and tibial metaphyseal cones combined with stems in patients with moderate to severe bone defects undergoing complex revision total knee arthroplasty confers excellent results independent of stem fixation technique. LEVEL OF EVIDENCE: IV, case series.

Indexed as

Arthroplasty, Replacement, KneeKnee ProsthesisHumansKnee JointPorosityProsthesis DesignReoperationRetrospective StudiesTitaniumTitaniumCementConeHybrid fixationRevision total knee arthroplastySubsidenceTotal knee arthroplasty

Identifiers

PMID36243781
OpenAlexW4306294617

What OpenQuestion holds

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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.