Evidence map›Paper›PMID 30066018›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019

An accelerometer-based portable navigation system improved prosthetic alignment after total knee arthroplasty in 3D measurements.

Hideki Ueyama, Yukihide Minoda, Ryo Sugama, Yoichi Ohta, Kazumasa Yamamura, Suguru Nakamura, Susumu Takemura, Hiroaki Nakamura

Abstract read
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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
3.1field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. MAKO CT-based robotic arm-assisted system is a reliable procedure for total knee arthroplasty: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
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  5. Precision of the ultrasonography-integrated tibial extramedullary guide for total knee arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
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  6. [Trends in navigation-handheld systems].Orthopadie (Heidelberg, Germany) · 2024
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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

8 authors at 1 institution in 1 country.

Hideki UeyamaDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan. h.ueyama@msic.med.osaka-cu.ac.jp.
Yukihide MinodaDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan.
Ryo SugamaDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan.
Yoichi OhtaDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan.
Kazumasa YamamuraDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan.
Suguru NakamuraDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan.
Susumu TakemuraDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan.
Hiroaki NakamuraDepartment of Orthopedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno ward, Osaka, 545-8585, Japan.
Osaka City University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to compare prosthetic alignment using three-dimensional (3D) measurements following total knee arthroplasty (TKA) performed using an accelerometer-based portable navigation system (KneeAlign2) versus the conventional technique.

methodsA total of 159 patients who had primary osteoarthritis of the knee with varus deformity underwent TKA. The KneeAlign2 system was used for distal femoral resection and tibial resection in 78 knees, and the conventional instrumentation (intramedullary for the femur and extramedullary for the tibia) was used in 81 knees. 3D computed tomography (CT) scans of the whole leg were taken after TKA. Femoral and tibial prosthetic alignments in the coronal, sagittal, and axial planes were measured using computer software. The operation time and estimated blood loss were calculated. Deep venous thrombosis (DVT) and pulmonary embolism (PE) were evaluated using the contrast-enhanced multi-detector row CT at 1 week after TKA.

resultsIn the femoral coronal plane, the mean and standard deviation of prosthetic alignment from neutral alignment were 1.2° [95% confidence interval (CI) 1.0°-1.4°) in the navigation group and 1.6° (95% CI 1.3°-2.0°) in the conventional group (p = 0.03). The femoral component outliers (> 3° away from the goal alignment) using the navigation system and the conventional technique were 3 and 15%, respectively, in the coronal plane (p < 0.01), and 15 and 43%, respectively, in the sagittal plane (p < 0.01). The outliers in tibial coronal and tibial sagittal planes were not statistically different between the two groups. There were no statistically significant differences between the two groups in operation time, blood loss, DVT, and PE.

conclusionUsing an accelerometer-based portable navigation system decreased the outliers of prosthetic alignment in femoral coronal and sagittal planes, and did not increase the complications such as operation time, blood loss, DVT, and PE. To our knowledge, this study is the first to investigate the usefulness of an accelerometer-based portable navigation system using the validated 3D measurement. LEVEL OF EVIDENCE: III.

Indexed as

AccelerometryAgedAged, 80 and overArthroplasty, Replacement, KneeContrast MediaFemaleFemurHumansImaging, Three-DimensionalKneeKnee JointMaleMiddle AgedOperative TimeOsteoarthritis, KneePostoperative PeriodContrast MediaAccelerometer-based portable navigation systemAlignmentOutlierThree-dimensional assessmentTotal knee arthroplasty

Identifiers

PMID30066018
OpenAlexW2887696264

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.