Evidence map›Paper›PMID 31925538›Full record

ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2020

Portable imageless navigation system and surgeon's estimate for accurate evaluation of acetabular cup orientation during total hip arthroplasty in supine position.

Ryohei Takada, Tetsuya Jinno, Kazumasa Miyatake, Masanobu Hirao, Toshitaka Yoshii, Atsushi Okawa

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Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
3.1field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

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  16. Accuracy of acetabular cup insertion in an anterolateral supine approach using an accelerometer-based portable navigation system.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2021
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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

6 authors at 1 institution in 1 country.

Ryohei TakadaDepartment of Orthopaedic Surgery, Tokyo Medical and Dental University, Medical Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. takada.orth@tmd.ac.jp.ORCID http://orcid.org/0000-0001-9317-5157
Tetsuya JinnoDepartment of Orthopaedic Surgery, Tokyo Medical and Dental University, Medical Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Kazumasa MiyatakeDepartment of Orthopaedic Surgery, Tokyo Medical and Dental University, Medical Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Masanobu HiraoDepartment of Orthopaedic Surgery, Tokyo Medical and Dental University, Medical Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Toshitaka YoshiiDepartment of Orthopaedic Surgery, Tokyo Medical and Dental University, Medical Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Atsushi OkawaDepartment of Orthopaedic Surgery, Tokyo Medical and Dental University, Medical Hospital, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Tokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis prospective study aimed to clarify whether this novel device can evaluate the cup orientation during total hip arthroplasty (THA) more closely to that measured in postoperative computed tomography (CT) compared to the surgeon's estimate using a manual goniometer.

methodsWe prospectively performed 30 cementless THAs via the anterolateral approach in supine position between October 2018 and July 2019, wherein cup orientation was evaluated by both a portable imageless navigation system (HipAlign) and a manual goniometer during surgeries. Primary outcome was the absolute estimate error [the absolute value of the difference between cup angles measured by postoperative CT and those measured by HipAlign (group H) or surgeon's estimate using the manual goniometer (group S) during surgery]. The number of outliers of the absolute estimate error (> 10°) in each group was also estimated.

resultsThe absolute estimate error of cup inclination in groups H and S was 3.3° ± 2.7° and 3.0° ± 2.5°, respectively (p = 0.51), whereas that of cup anteversion was 3.8° ± 3.4° and 6.0° ± 3.7°, respectively (p = 0.0008). The number of outliers of the estimate error in groups H and S was one case (3.3%) and six cases (20.0%), respectively (p = 0.04). In all six outlier cases, surgeons underestimated cup anteversion during surgeries.

conclusionsThis portable imageless navigation system was a useful method, especially for avoiding incorrect cup anteversion. Underestimation of cup anteversion during THA in the supine position with the conventional alignment assisting device should be given attention.

Indexed as

AcetabulumArthroplasty, Replacement, HipHipSurgical Navigation SystemsFemaleHumansImage Interpretation, Computer-AssistedIntraoperative CareMaleMiddle AgedMobile ApplicationsOutcome and Process Assessment, Health CarePatient PositioningPostoperative ComplicationsRange of Motion, ArticularAcetabular cup orientationPortable imageless navigation systemRange of motionTotal hip arthroplasty

Identifiers

PMID31925538
OpenAlexW3000659696

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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.