Evidence map›Paper›PMID 30008968›Full record

ArticleThe open orthopaedics journal2018

Midterm Results of Cementless Total Knee Arthroplasty: A Retrospective Case Series.

Radosław Stempin, Kacper Stempin, Wiesław Kaczmarek, Julian Dutka

Open access · hybridAbstract read
In one paragraph

Article in The open orthopaedics journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.7field-weighted citation impact, top 28% 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, 10 citations in OpenAlex.

  1. Cementless total knee arthroplasty: Why, when, and how.Journal of clinical orthopaedics and trauma · 2025
    Review
  2. Review
  3. No component loosening of a cementless deep dish rotating platform knee at a 5-year follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Observational
  4. Article
  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

4 authors at 1 institution in 1 country.

Radosław StempinDepartment of Orthopedic & Trauma Surgery, J. Strus Memorial (Multispecialistic City) Hospital, Poznan, Poland.
Kacper StempinDepartment of Orthopedic & Trauma Surgery, Westallgäu Clinic, Wangen, Germany.
Wiesław KaczmarekDepartment of Orthopedic Surgery, Promienista Clinic, Poznan, Poland.
Julian DutkaDepartment of Orthopedic & Trauma Surgery, S. Zeromski Memorial Hospital Cracow, Poland.
Landwirtschaftlichen Zentrums Baden-Württemberg​ · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is an ongoing debate about whether to use cementless or cemented fixation for Total Knee Arthroplasty (TKA).

objectiveThe study aimed to assess midterm survivorship of the Vanguard cementless system, and to demonstrate the utility of the Bone Hardness Test (BHT) for the selection of cementless fixation TKA.

methodsFrom September 2009 through November 2014, 123 total knee arthroplasties were completed, with cementless Vanguard Cruciate Retaining TKA in 110 knees (102 patients) and cemented Vanguard in 13 cases (12 patients). Implant fixation was based on intraoperative assessment of posterior cruciate ligament stability, bone quality, and BHT. All patients with a cementless Vanguard implant were eligible for this retrospective study. Preoperative and postoperative Knee Society Score and Western Ontario and McMaster Universities Osteoarthritis Index were obtained. Standardized standing anteroposterior and lateral radiographs were taken.

resultsThree patients (4 TKAs) were lost to follow-up. The mean follow-up time was 5.5 ± 1.4 years. All scores significantly improved postoperatively. No radiographic failures were observed. Five-year implant survival, with revision of any component for any reason as an endpoint, was 97.2% (95% confidence interval, 91.7 - 99.1%). Five-year survival with revision for aseptic loosening was 100%. Only one knee required revision due to an isolated unrelated bearing exchange, and two additional knees required secondary resurfacing of the patella for retropatellar pain.

conclusionGood midterm results were obtained with the cementless Vanguard Cruciate Retaining TKA for the treatment of osteoarthritis. The Bone Hardness Test appears to be an effective way to determine the selection of cementless TKA.

Indexed as

Biocompatible coated materialsBone hardness testBone matrix qualityCementless total knee arthroplastyFixationOsteoarthritis knee

Identifiers

PMID30008968
PMCPMC6008985
OpenAlexW2807239893

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.