Evidence map›Paper›PMID 30218354›Full record

ReviewDer Orthopade2018

Individualized alignment in total knee arthroplasty using image-based robotic assistance : Video article.

Tilman Calliess, Max Ettinger, Peter Savov, Roman Karkosch, Henning Windhagen

Abstract readReview
In one paragraph

Review in Der Orthopade, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 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.

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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Valgus alignment of the femoral component is associated with higher revision rates 10 years after TKA.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  10. Arthroplasty of the Knee: Current Techniques for Implant Alignment.Zeitschrift fur Orthopadie und Unfallchirurgie · 2022
    Article
  11. Article
  12. A safe transition to a more personalized alignment in total knee arthroplasty: the importance of a "safe zone" concept.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Article
  13. Custom total knee arthroplasty facilitates restoration of constitutional coronal alignment.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Review
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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

5 authors.

Tilman CalliessDepartment for Orthopedic Surgery at Annastift Hospital, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany. tilman@calliess.de.
Max EttingerDepartment for Orthopedic Surgery at Annastift Hospital, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany.
Peter SavovDepartment for Orthopedic Surgery at Annastift Hospital, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany.
Roman KarkoschDepartment for Orthopedic Surgery at Annastift Hospital, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany.
Henning WindhagenDepartment for Orthopedic Surgery at Annastift Hospital, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625, Hannover, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionOver the past decades many innovations were introduced in total knee arthroplasty (TKA) focusing on implant longevity and higher procedural precision; however, there are still a high number of dissatisfied patients. It was reported that better anatomical alignment may result in improved patient outcome; however, current technologies have limitations to achieve this. The aim of this video article is to describe the technique of individualized alignment in TKA with the use of image-based robotic assistance.

methodsThe technology is based on an individual patient knee model computed from segmented computed tomography (CT) scans. A preoperative planning of prosthesis position is conducted following the principle of kinematic alignment. Intraoperatively the soft tissue envelope is recorded and the computer predicts the gap balance based on the virtual planning. The prosthesis position is then adapted to achieve balanced gaps and to avoid soft tissue release. This technique is shown in a cadaver operation and clinical examples of two patients are described.

resultsWith the combination of anatomically oriented prosthesis positioning and minor adaptations with respect to the soft tissue, an individualized alignment is achieved with reduced need of soft tissue release. The robotic-assisted surgery guarantees a precise implementation of the planning. The initial experience showed a promising outcome in short-term follow-up.

Indexed as

Arthroplasty, Replacement, KneeKnee ProsthesisRobotic Surgical ProceduresHumansKnee JointProspective StudiesImage basedKinematic alignmentNo releasesRobotic assistedTotal knee arthroplasty

Identifiers

PMID30218354
PMCPMC6182501

What OpenQuestion holds

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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.