Evidence map›Paper›PMID 25763851›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2015

Factors affecting intraoperative kinematic patterns and flexion angles in navigated total knee arthroplasty.

Kazunari Ishida, Nao Shibanuma, Tomoyuki Matsumoto, Hiroshi Sasaki, Koji Takayama, Akihiko Toda, Ryosuke Kuroda, Masahiro Kurosaka

Abstract read
PubMed Publisher
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Intraoperative kinematic analysis of posterior stabilized total knee arthroplasty with asymmetric helical post-cam design.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019
    Article
  6. Tibiofemoral rotational alignment affects flexion angles in navigated posterior-stabilized total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
    Article
  7. Influence of soft tissue balancing and distal femoral resection on flexion contracture in navigated total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Article
  8. A modified technique to reduce tibial keel cutting errors during an Oxford unicompartmental knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Article
  9. Article
  10. Article
  11. Clinical outcome after total knee replacement.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015
    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.

Kazunari IshidaDepartment of Orthopaedic Surgery, Kobe Kaisei Hospital, 3-11-15, Shinohara-Kita, Nada, Kobe, 657-0068, Japan, wavedreamer17@yahoo.co.jp.
Nao Shibanuma
Tomoyuki Matsumoto
Hiroshi Sasaki
Koji Takayama
Akihiko Toda
Ryosuke Kuroda
Masahiro Kurosaka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the factors affecting intraoperative kinematics, as measured with a navigation system, and their effect on maximum flexion angles during total knee arthroplasty (TKA).

methodOne hundred posterior stabilised (PS) TKAs performed using an image-free navigation system were evaluated. Tibial internal rotation angles at maximum extension, 30°, 45°, 60°, 90°, and maximum flexion were collected at registration and after implantation. The varus angles from the coronal mechanical axis were also collected. The rotational patterns were divided into four groups to investigate whether flexion contracture and varus deformity affected the kinematic patterns, and correlated with the maximum pre- and post-operative flexion angles.

resultsAt registration, the flexion angles at maximum extension differed significantly between the kinematic groups; the flexion angle at maximum extension at registration was negatively correlated with the pre-operative maximum flexion angle (R(2) = 0.226, p < 0.0001) and the post-operative maximum flexion angle (R(2) = 0.059, p = 0.0167). Varus deformity at registration also differed significantly between the kinematic groups; varus deformity at registration was negatively correlated with the pre-operative maximum flexion angle (R(2) = 0.087, p = 0.0036) and post-operative maximum flexion angle (R(2) = 0.101, p = 0.0027).

conclusionNavigation-based measurements in patients undergoing PS TKA indicated that pre-operative flexion contracture and varus deformity are negatively correlated with both pre- and post-operative maximum flexion angles. The results may improve the ease with which surgeons can interpret intraoperative kinematics, by providing a multi-dimensional perspective. With further knowledge regarding intraoperative kinematics, it might be possible to improve surgical approach, prosthesis design, and clinical outcomes. LEVEL OF EVIDENCE: II.

Indexed as

Surgery, Computer-AssistedAgedAged, 80 and overArthrometry, ArticularArthroplasty, Replacement, KneeBiomechanical PhenomenaFemaleHumansIntraoperative PeriodKnee JointMaleMiddle AgedRange of Motion, ArticularRotationTibia

Identifiers

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.