Evidence map›Paper›PMID 30663080›Full record

ArticleMuscle & nerve2019

Ultrasound appears to be a reliable technique for the diagnosis of piriformis syndrome.

Wenhua Zhang, Fangqiong Luo, Hongjun Sun, Hongyu Ding

Open access · hybridAbstract read
In one paragraph

Article in Muscle & nerve, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.6field-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

17 citing papers in PubMed, 41 citations in OpenAlex.

  1. Piriformis syndrome and lumbosacral radiculopathy: An overlooked coexistence.Turkish journal of physical medicine and rehabilitation · 2026
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  11. Human skeletal muscle size with ultrasound imaging: a comprehensive review.Journal of applied physiology (Bethesda, Md. : 1985) · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Wenhua ZhangDepartment of Ultrasound, Qianfoshan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, 250014, Jinan, Shandong Province, China.
Fangqiong LuoDepartment of Ultrasound, Qianfoshan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, 250014, Jinan, Shandong Province, China.
Hongjun SunDepartment of Ultrasound, Qianfoshan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, 250014, Jinan, Shandong Province, China.
Hongyu DingDepartment of Ultrasound, Qianfoshan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, 250014, Jinan, Shandong Province, China.
Shandong Provincial QianFoShan Hospital · CNShandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPiriformis muscle syndrome (PS) is a disorder encompassing a constellation of symptoms, including buttock and hip pain. In this study we aimed to assess the value of ultrasound (US) in the diagnosis of PS.

methodsThirty-three clinically diagnosed PS patients and 26 healthy volunteers underwent a clinical PS scoring examination and US and MRI assessment of the bilateral piriformis muscles. The areas under the receiver operating characteristic curves (AUROCs) of the US parameters (i.e., increased thickness [iTh] and increased cross-sectional area [iCSA]) for piriformis muscle were evaluated.

resultsOn US and MRI, the thickness and CSA were increased in PS patients. The AUROCs for the iTh and iCSA for discriminating stage 0 (healthy volunteers) from stage 1 through stage 3 (PS patients) were 0.88 and 0.95, respectively. DISCUSSION: US may be a reliable technique for the clinical diagnosis of PS. Muscle Nerve 59:411-416, 2019.

Indexed as

AdultAgedAged, 80 and overCross-Sectional StudiesDisease ProgressionFemaleHealthy VolunteersHumansMagnetic Resonance ImagingMaleMiddle AgedMuscle, SkeletalObserver VariationPiriformis Muscle SyndromeROC CurveUltrasonographycross-sectional areamuscle thicknesspiriformis musclepiriformis muscle syndromeultrasound

Identifiers

PMID30663080
PMCPMC6594076
OpenAlexW2911748970

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.