Evidence map›Paper›PMID 31254031›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020

Customised bi-compartmental knee arthroplasty shows encouraging 3-year results: findings of a prospective, multicenter study.

J Beckmann, A F Steinert, B Huber, M Rudert, F X Köck, M Buhs, L Rolston

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Insufficient evidence to confirm benefits of custom partial knee arthroplasty: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Pooled it
  2. Article
  3. Current status of bicompartmental arthroplasty.Arthroplasty (London, England) · 2025
    Review
  4. Review
  5. Review
  6. Relevant changes of leg alignment after customised individually made bicompartmental knee arthroplasty due to overstuffing.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Article
  7. Article
  8. Contemporary knee arthroplasty: one fits all or time for diversity?Archives of orthopaedic and trauma surgery · 2021
    Review
  9. Review
  10. Review
  11. 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

7 authors at 3 institutions in 2 countries.

J BeckmannSportklinik Stuttgart, Taubenheimstraße 8, 70372, Stuttgart, Germany. drjbeckmann@gmx.de.ORCID http://orcid.org/0000-0002-0941-6729
A F SteinertKönig-Ludwig-Haus, Julius-Maximilians-University, Würzburg, Germany.
B HuberCopley Hospital, 555 Washington Highway, Morrisville, VT, USA.
M RudertKönig-Ludwig-Haus, Julius-Maximilians-University, Würzburg, Germany.
F X KöckMedArtes Orthopaedic Surgery, 93073, Regensburg, Neutraubling, Germany.
M BuhsCOVZ, Bahnhofstraße 92, 25451, Quickborn, Germany.
L RolstonHenry County Center for Orthopedics Surgery and Sports Medicine, New Castle, IN, USA.
Klinik König-Ludwig Haus · DEHenry County Community Foundation · USKlinikum Stuttgart · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to assess the clinical and patient-reported outcomes of a customised, individually made (CIM) bi-compartmental knee arthroplasty (BKA).

methodsA prospectively recruited cohort of 79 patients was implanted with a CIM-BKA (patello-femoral plus either medial or lateral tibio-femoral, iDuo G2 system, Conformis, Billerica MA) at eight centres in the US and Germany. Patients were assessed for the 2011 KSS, KOOS, and ROM pre-operatively and at 2 weeks, 6 weeks, 12 weeks, 1 year, and 2 years post-operatively.

resultsThe objective KSS score significantly improved from 69 at the pre-operative visit, to 94 at the 2-year post-operative time-point. Similar improvements were observed for the KSS function and satisfaction domains. Significant improvements from pre-operative levels were observed across all five domains of the KOOS. Two patients have undergone surgery to revise their CIM-BKA implant to total knees, resulting in a survivorship rate of 97.5% at an average follow-up of 2.6 years.

conclusionsCIM-BKA compares favourably to published scores as well as revision rates for previously available monolithic OTS-BKA implants. CIM-BKA implants provide surgeons with a viable and patient-specific monolithic implant solution as an option for patients presenting with bi-compartmental disease, who might, otherwise, be treated by performing uni-condylar + patello-femoral joint or bicruciate sparing TKA surgeries. Longer follow-up and higher numbers have to be awaited for further validation of these encouraging early results. LEVEL OF EVIDENCE: 3b (individual case-controlled study).

Indexed as

AdultAgedArthroplasty, Replacement, KneeCase-Control StudiesFemaleFemurGermanyHumansKneeKnee JointLength of StayMaleMiddle AgedOsteoarthritis, KneePatellofemoral JointPatient Reported Outcome MeasuresBi-compartmentBicruciate retainingBKRCustomisedIndividualisedTotal knee replacement

Identifiers

PMID31254031
OpenAlexW2954579025

What OpenQuestion holds

Textmetadata
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.