Evidence map›Paper›PMID 20596735›Full record

SynthesisEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2010

The clinical features of the piriformis syndrome: a systematic review.

Kevork Hopayian, Fujian Song, Ricardo Riera, Sidha Sambandan

5 registry-linked trialsAbstract readSystematic Review
In one paragraph

Synthesis in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 5 registered trials, which are not on this map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
–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.

NCT04600024 completednot on this mapstarted 2018, after this paper: background citation

The Importance of Pelvic Morphometric Measurements in Piriformis Syndrome: A Case-control Study

TypeobservationalSponsorFatih Sultan Mehmet Training and Research HospitalRan2018 to 2020Enrolled45ConditionsPiriformis Muscle Syndrome, AnthropometryArmsUltrasound guided diagnostic injection
NCT04815941 nacompletednot on this mapstarted 2020, after this paper: background citation

Effects of Soft Ball Tissue Release Exercises on Low Back Pain Secondary to Tight Hip Muscles.

TypeinterventionalSponsorRiphah International UniversityRan2020 to 2020Enrolled23ConditionsLow Back Pain, Tight Hip MusclesArmsSoft ball tissue release exercises
NCT04842656 nacompletednot on this mapstarted 2020, after this paper: background citation

Comparison of Active Release Technique and Post Isometric Relaxation in Patients With Piriformis Syndrome

TypeinterventionalSponsorRiphah International UniversityRan2020 to 2021Enrolled30ConditionsPiriformis SyndromeArmsPost isometric relaxation, Active release technique alongwith conventional treatment
NCT05271071 nacompletednot on this mapstarted 2022, after this paper: background citation

The Importance of Gluteus Maximus Muscle in Patients With Preliminary Diagnosis of Piriformis Syndrome: Prospective, Randomized, Single-Blind, Crossover Study

TypeinterventionalSponsorIstanbul University - CerrahpasaRan2022 to 2022Enrolled60ConditionsPiriformis Muscle Syndrome, Myofacial Pain Syndromes, Piriformis SyndromeArmsUltrasound guided piriformis muscle and gluteus maximus muscle lidocaine injection
NCT05392933 nacompletednot on this mapstarted 2023, after this paper: background citation

Investigation of the Presence of Piriformis Syndrome Accompanying Lumbar Radiculopathy

TypeinterventionalSponsorIstanbul University - CerrahpasaRan2023 to 2024Enrolled39ConditionsPiriformis Syndrome, Lumbar RadiculopathyArmsUltrasound guided piriformis muscle lidocaine injection
3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Four symptoms define the piriformis syndrome: an updated systematic review of its clinical features.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2018
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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.

Kevork HopayianSchool of Medicine, Health Policy and Practice, University of East Anglia, Norwich NR4 7TJ, UK. k.hopayian@btinternet.com
Fujian Song
Ricardo Riera
Sidha Sambandan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Piriformis syndrome, sciatica caused by compression of the sciatic nerve by the piriformis muscle, has been described for over 70 years; yet, it remains controversial. The literature consists mainly of case series and narrative reviews. The objectives of the study were: first, to make the best use of existing evidence to estimate the frequencies of clinical features in patients reported to have PS; second, to identify future research questions. A systematic review was conducted of any study type that reported extractable data relevant to diagnosis. The search included all studies up to 1 March 2008 in four databases: AMED, CINAHL, Embase and Medline. Screening, data extraction and analysis were all performed independently by two reviewers. A total of 55 studies were included: 51 individual and 3 aggregated data studies, and 1 combined study. The most common features found were: buttock pain, external tenderness over the greater sciatic notch, aggravation of the pain through sitting and augmentation of the pain with manoeuvres that increase piriformis muscle tension. Future research could start with comparing the frequencies of these features in sciatica patients with and without disc herniation or spinal stenosis.

Indexed as

HumansPainPiriformis Muscle SyndromeSciatica

Identifiers

PMID20596735
PMCPMC2997212

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.