Evidence map›Paper›PMID 36089624›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023

Medial pivot-based total knee arthroplasty achieves better clinical outcomes than posterior-stabilised total knee arthroplasty.

Michitaka Kato, Hideki Warashina, Shingo Mitamura, Akito Kataoka

Open access · hybridAbstract read
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2023. 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
3.5field-weighted citation impact, top 7% 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, 18 citations in OpenAlex.

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  5. Medial pivot total knee arthroplasty.Journal of clinical orthopaedics and trauma · 2025
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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

4 authors at 1 institution in 1 country.

Michitaka KatoNagoya Joint Replacement Orthopaedic Clinic, 7 Iponbashi, Takadaji, Kita-Nagoya, Aichi, 481-0011, Japan. katomic29@gmail.com.ORCID http://orcid.org/0000-0003-4800-4396
Hideki WarashinaNagoya Joint Replacement Orthopaedic Clinic, 7 Iponbashi, Takadaji, Kita-Nagoya, Aichi, 481-0011, Japan.ORCID http://orcid.org/0000-0003-1146-7338
Shingo MitamuraNagoya Joint Replacement Orthopaedic Clinic, 7 Iponbashi, Takadaji, Kita-Nagoya, Aichi, 481-0011, Japan.ORCID http://orcid.org/0000-0001-8413-8717
Akito KataokaNagoya Joint Replacement Orthopaedic Clinic, 7 Iponbashi, Takadaji, Kita-Nagoya, Aichi, 481-0011, Japan.ORCID http://orcid.org/0000-0002-8381-459X
Takayanagi Dental Clinic · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStability in the sagittal plane, particularly regarding anterior cruciate ligament compensation, and postoperative functionality and satisfaction remain issues in total knee arthroplasty. Therefore, this prospective study compared the clinical outcomes between medial-pivot-based and posterior-stabilised total knee arthroplasty based on anterior translation and clinical scores.

methodsTo assess outcomes of total knee arthroplasty for varus osteoarthritis, the anterior translation distance of the tibia relative to the femur was measured at 30 and 60° of flexion using a KS measure Arthrometer at 6 months postoperatively. The 2011 Knee Society Score, Forgotten Joint Score, visual analogue scale for pain, and range of motion were assessed at 6 months and 1 year postoperatively. The correlations among each score, anterior translation distance, range of motion, and visual analogue scale score for pain were investigated.

resultsThe medial-pivot and posterior-stabilised groups comprised 70 and 51 patients, respectively. The medial-pivot group exhibited a significantly shorter anterior translation distance at 60° flexion than the posterior-stabilised group. Furthermore, the medial-pivot group achieved significantly better outcomes regarding the visual analogue scale for pain, 2011 Knee Society Score, and Forgotten Joint Score than the posterior-stabilised group. A significant negative correlation was observed between the anterior translation distance and the function score of the 2011 Knee Society Score, whereas a significant positive correlation was found between the anterior translation distance and flexion angle, and between the extension angle and score of the Forgotten Joint Score or 2011 Knee Society Score. Significant negative correlations were also found between the pain visual analogue scale and both the 2011 Knee Society Score and Forgotten Joint Score.

conclusionIn total knee arthroplasty for osteoarthritis, the medial-pivot group displayed a shorter anterior translation distance than the posterior-stabilised group at 6 months postoperatively. The visual analogue scale score for pain was also significantly lower in the medial-pivot group than that in the posterior-stabilised group at both 6 months and 1 year postoperatively. Because a correlation was observed between the anterior translation distance and the function score, medial-pivot-based total knee arthroplasty was considered to significantly improve postoperative function compared to posterior-stabilised total knee arthroplasty.

Indexed as

Arthroplasty, Replacement, KneeKnee ProsthesisOsteoarthritis, KneeBiomechanical PhenomenaHumansKnee JointPainProspective StudiesRange of Motion, ArticularAnteroposterior laxityCruciate substituteMedial pivotPosterior-stabilisedSagittal stabilityTotal knee arthroplasty

Identifiers

PMID36089624
PMCPMC9464619
OpenAlexW4295878165

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LicenceCC BY
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Registered trials

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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.