391 results match your criteria Piriformis Syndrome


Gait analysis of patients with piriformis muscle syndrome compared to healthy controls.

Musculoskelet Sci Pract 2020 Aug 5;48:102165. Epub 2020 May 5.

Rehabilitation Research Center, Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.

Background: Piriformis muscle syndrome (PMS) is a condition that can causes local buttock pain and tenderness. The symptoms of PMS are related to the hip joint position and may affect repetitive daily tasks such as walking.

Objectives: What is the difference between the gait characteristics of patients with PMS and those of matched-healthy controls?

Design: Observational study. Read More

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http://dx.doi.org/10.1016/j.msksp.2020.102165DOI Listing

Posterior femoral cutaneous neuropathy in piriformis syndrome: A vascular hypothesis.

Med Hypotheses 2020 May 30;144:109924. Epub 2020 May 30.

University of South Carolina School of Medicine Greenville, Department of Biomedical Sciences, 607 Grove Road, Greenville, SC 29605, United States.

Piriformis syndrome is described as a neuromuscular condition which occurs when the sciatic nerve is compressed and/or irritated by the piriformis muscle. It is characterized by acute tenderness in the buttock with sciatica-like pain radiating into the posterior aspect of the thigh, leg, and foot. The neurogenic leg and foot pain experienced with this condition is consistent with involvement of the sciatic nerve. Read More

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http://dx.doi.org/10.1016/j.mehy.2020.109924DOI Listing

Piriformis syndrome as the only initial manifestation of septic sacroiliac osteomyelitis.

Clin Med (Lond) 2020 May;20(3):e18-e19

Kaohsiung Medical University, Kaohsiung, Taiwan

Piriformis syndrome refers to sciatica symptoms that do not originate from spinal root compression, but involve the overlying piriformis muscle. Diagnosis is clinical since there are no definitive tests to confirm the diagnosis. Piriformis syndrome is often misinterpreted as sciatica or other pains. Read More

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http://dx.doi.org/10.7861/clinmed.2020-0035DOI Listing

Letter to the Editor Regarding "Feasibility and Reliability of an Ultrasound Examination to Diagnose Piriformis Syndrome".

World Neurosurg 2020 May;137:483-484

Department of Physical and Rehabilitation Medicine Hacettepe University Medical School, Ankara, Turkey.

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http://dx.doi.org/10.1016/j.wneu.2019.12.155DOI Listing

Deep gluteal syndrome as a cause of posterior hip pain and sciatica-like pain.

Bone Joint J 2020 May;102-B(5):556-567

Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Department of Orthopedic Surgery, Seoul National University College of Medicine Seongnam, South Korea.

Deep gluteal syndrome is an increasingly recognized disease entity, caused by compression of the sciatic or pudendal nerve due to non-discogenic pelvic lesions. It includes the piriformis syndrome, the gemelli-obturator internus syndrome, the ischiofemoral impingement syndrome, and the proximal hamstring syndrome. The concept of the deep gluteal syndrome extends our understanding of posterior hip pain due to nerve entrapment beyond the traditional model of the piriformis syndrome. Read More

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http://dx.doi.org/10.1302/0301-620X.102B5.BJJ-2019-1212.R1DOI Listing

Composite Anatomical Variations between the Sciatic Nerve and the Piriformis Muscle: A Nepalese Cadaveric Study.

Case Rep Neurol Med 2020 31;2020:7165818. Epub 2020 Mar 31.

Department of Anatomy, Gandaki Medical College, Pokhara, Nepal.

Piriformis syndrome is a rare syndrome which is one of the main causes of nondiscogenic sciatica causing severe low back pain due to entrapment of sciatic nerve either by the hypertrophy or by inflammation of the piriformis muscle. We have carried out dissection in 20 Nepalese cadavers. Out of 40 dissected gluteal regions, 37 exhibited typical appearance of sciatic nerve, piriformis muscle, and their relations resembling type-a, whereas 3 gluteal regions showed composite structural variations resembling type-b and type-c based on Beaton and Anson's classification. Read More

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http://dx.doi.org/10.1155/2020/7165818DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7150691PMC

Deep gluteal syndrome is defined as a non-discogenic sciatic nerve disorder with entrapment in the deep gluteal space: a systematic review.

Knee Surg Sports Traumatol Arthrosc 2020 Apr 3. Epub 2020 Apr 3.

Department of Health Research Methods, Evidence, and Impact, McMaster University, 1200 Main St. W, Hamilton, ON, L8N 3Z5, Canada.

Purpose: Clinicians are not confident in diagnosing deep gluteal syndrome (DGS) because of the ambiguity of the DGS disease definition and DGS diagnostic pathway. The purpose of this systematic review was to identify the DGS disease definition, and also to define a general DGS diagnostic pathway.

Methods: A systematic search was performed using four electronic databases: PubMed, MEDLINE, EMBASE, and Google Scholar. Read More

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http://dx.doi.org/10.1007/s00167-020-05966-xDOI Listing
April 2020
2.837 Impact Factor

Case report and review of the potential role of the Type A piriformis muscle in dynamic sciatic nerve entrapment variant of piriformis syndrome.

Surg Radiol Anat 2020 Feb 28. Epub 2020 Feb 28.

Medical Department, Fremantle Football Club, Cockburn Central, WA, Australia.

Piriformis syndrome (PS) is an underdiagnosed but common cause of chronic buttock pain and sciatica. Anatomical variants of the piriformis muscle and sciatic nerve have not been thought to be significant in the pathophysiology of PS however, recent description of the piriformis musculotendinous junction has identified a common variant that we believe frequently results in dynamic sciatic nerve entrapment at the infra-piriformis fossa. We performed ultrasound guided low-dose Botulinum Toxin-A (BTX-A) injection to the lower piriformis muscle belly in an elite Australian Rules football player with PS and Type A piriformis muscle to relieve symptomatic sciatic nerve compression. Read More

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http://dx.doi.org/10.1007/s00276-020-02440-8DOI Listing
February 2020

[The piriformis syndrome-a special indication for botulinum toxin].

Authors:
W Hermann

Nervenarzt 2020 Feb;91(2):99-106

SRO AG Langenthal, St. Urbanstraße 67, 4900, Langenthal, Deutschland.

The piriformis syndrome (PiS) is a possible cause of gluteal pain radiating into the legs. From a pathophysiological anatomical point of view a division into primary and secondary PiS is made. A primary PiS is based on variants of the course of the sciatic nerve with respect to the piriformis muscle. Read More

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http://dx.doi.org/10.1007/s00115-020-00866-4DOI Listing
February 2020

Prevalence and sensitivity of trigger points in lumbo-pelvic-hip muscles in patients with patellofemoral pain syndrome.

J Bodyw Mov Ther 2020 Jan 15;24(1):126-130. Epub 2019 Oct 15.

BS, Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.

Objectives: Changes in the activity of the lumbo-pelvic-hip muscles have been established as a major cause of patellofemoral pain syndrome (PFPS), a common orthopedic problem. The present study aimed to compare the prevalence and sensitivity of myofascial trigger points (MTrPs) in lumbo-pelvic-hip muscles in persons with and without PFPS.

Methods: Thirty women with PFPS and 30 healthy women 18-40 years old were recruited for this study. Read More

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http://dx.doi.org/10.1016/j.jbmt.2019.10.012DOI Listing
January 2020

Anatomical analysis of the pelvis to identify any predisposing anatomical factors for ischiofemoral space pathology: a retrospective study.

Br J Radiol 2020 Apr 29;93(1108):20190556. Epub 2020 Jan 29.

Dra. Roca Diagnóstico Médico. CEMEDI, Carrera del Sábado, 4, 50006, Zaragoza, Spain.

Objective: Anatomical analysis of the hips and pelvis was performed using MRI to evaluate morphological characteristics and associations between them. We identified correlations between the ischiofemoral space (IFS), quadratus femoris space (QFS), femoral version angle (FVA) and cervicodiaphyseal angle (CDA).

Methods: This study involved a retrospective search of a database of consecutive reports of adult hip MRI examinations carried out between January and September 2016. Read More

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http://dx.doi.org/10.1259/bjr.20190556DOI Listing

Piriformis Injection: An Ultrasound-Guided Technique.

Arthrosc Tech 2019 Dec 13;8(12):e1457-e1461. Epub 2019 Nov 13.

Nashville Hip Institute, Nashville, Tennessee, U.S.A.

Piriformis syndrome is an elusive condition that likely is overlooked and overdiagnosed in equal proportions. Image-guided injection of the muscle is an essential element in the assessment and management of this disorder. Ultrasonography allows visualization of the anatomy of the piriformis and its relation with the sciatic nerve. Read More

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http://dx.doi.org/10.1016/j.eats.2019.07.033DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6928356PMC
December 2019

Development of an Evidence-Based Practical Diagnostic Checklist and Corresponding Clinical Exam for Low Back Pain.

J Manipulative Physiol Ther 2019 11 19;42(9):665-676. Epub 2019 Dec 19.

Palmer Center for Chiropractic Research, Palmer College of Chiropractic, Davenport, Iowa.

Objective: The purpose of this study was to use scientific evidence to develop a practical diagnostic checklist and corresponding clinical exam for patients presenting with low back pain (LBP).

Methods: An iterative process was conducted to develop a diagnostic checklist and clinical exam for LBP using evidence-based diagnostic criteria. The checklist and exam were informed by a systematic review focused on summarizing current research evidence for office-based clinical evaluation of common conditions causing LBP. Read More

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http://dx.doi.org/10.1016/j.jmpt.2019.08.003DOI Listing
November 2019

Pressure Pain Threshold in Subjects With Piriformis Syndrome: Test-Retest, Intrarater, and Interrater Reliability, and Minimal Detectible Changes.

Arch Phys Med Rehabil 2020 05 7;101(5):781-788. Epub 2019 Dec 7.

Rehabilitation Research Center, Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.

Objective: This study aimed to assess the test-retest, intrarater, and interrater reliability of using the pressure pain threshold (PPT) in healthy and affected piriformis muscles and to estimate its absolute reliability. As a secondary objective, the degree of tenderness of the affected piriformis muscles was compared with healthy piriformis muscles.

Study Design: This study used a comparative and reliability-based design. Read More

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http://dx.doi.org/10.1016/j.apmr.2019.10.194DOI Listing

Feasibility and Reliability of an Ultrasound Examination to Diagnose Piriformis Syndrome.

World Neurosurg 2020 Feb 25;134:e1085-e1092. Epub 2019 Nov 25.

Ultrasonic Department, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.

Objective: We explored the diagnostic performance of ultrasound examinations in the diagnosis of piriformis syndrome (PS).

Methods: In our single-center retrospective study, 52 patients with a diagnosis of PS and 50 healthy volunteers were enrolled to undergo ultrasound examination of the piriformis and sciatic nerve. The thicknesses of the piriformis and the diameter of the sciatic nerve were measured to compare the differences between the patients with PS and healthy volunteers. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.11.098DOI Listing
February 2020

Effect of piriformis injection on neuropathic pain.

Agri 2019 Nov;31(4):178-182

Department of Algology, Health Sciences University, Şişli Hamidiye Etfal Hospital, Health Research and Application Center, İstanbul, Turkey.

Objectives: The aim of this study was to investigate the effect of a piriformis injection on neuropathic pain in patients with piriformis syndrome.

Methods: Thirty patients with unilateral hip and/or leg pain, a positive FAIR test (increased H-reflex latency with Flexion, Adduction and Internal Rotation), and a trigger point at the piriformis muscle were enrolled in this prospective study. All of the patients exhibited neuropathic pain scored according to the Douleur Neuropathique 4 (DN4) of ≥4 for at least 6 months. Read More

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http://dx.doi.org/10.14744/agri.2019.34735DOI Listing
November 2019
5 Reads

Sciatic Nerve Variants in Patients Diagnosed With Sciatica: Is There a Correlation?

J Comput Assist Tomogr 2019 Nov/Dec;43(6):953-957

From the Lewis Katz School of Medicine at Temple University, Philadelphia, PA.

Purpose: Compression of the sciatic nerve in its path along the piriformis muscle can produce sciatica-like symptoms. There are 6 predominant types of sciatic nerve variations with type 1 being the most common (84.2%), followed by type 2 (13. Read More

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http://dx.doi.org/10.1097/RCT.0000000000000919DOI Listing
November 2019

Editorial: From the athlete foot to the painful hip: applied anatomy and clinical relevance of anatomical specific features in lower limb pathologies.

Surg Radiol Anat 2019 12;41(12):1409

Department of Anatomy, University of Lorraine, Avenue de la Forêt de Haye, 54505, Vandoeuvre-Les-Nancy, France.

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http://dx.doi.org/10.1007/s00276-019-02378-6DOI Listing
December 2019

Early morbidity and mortality after one-stage bilateral THA: Anterior versus posterior approach.

Orthop Traumatol Surg Res 2019 11 4;105(7):1265-1270. Epub 2019 Oct 4.

Service de Chirurgie Orthopédique et Chirurgie du Sport, Institut Universitaire Locomoteur et du Sport (IULS) - Hôpital Pasteur 2, 30, voie Romaine, 06000 Nice, France. Electronic address:

Background: Advantages of performing bilateral total hip arthroplasty (THA) in one stage include a single hospital stay, a single exposure to anaesthesia risks, and expedited rehabilitation. Controversy persists however, regarding safety, notably morbidity and mortality rates. Importantly, few studies have compared the anterior to the posterior approach for single-stage bilateral THA (1B-THA). Read More

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http://dx.doi.org/10.1016/j.otsr.2019.07.016DOI Listing
November 2019
3 Reads

Myositis ossificans traumatica of the piriformis muscle: a rare mature case in an adult African male.

Surg Radiol Anat 2019 Dec 4;41(12):1513-1517. Epub 2019 Oct 4.

Human Variation and Identification Research Unit (HVIRU), School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193, South Africa.

Myositis ossificans traumatica (MOT) is a common form of heterotopic ossification associated to trauma. Rare mature manifestations and topographically atypical presentations of MOT are often misdiagnosed as osteosarcoma. This case study discusses a rare, mature case of MOT of the piriformis muscle, potentially clinically associated with piriformis syndrome. Read More

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http://dx.doi.org/10.1007/s00276-019-02349-xDOI Listing
December 2019
1 Read

Deep gluteal syndrome: an overlooked cause of sciatica.

Br J Gen Pract 2019 10 26;69(687):485-486. Epub 2019 Sep 26.

Angel Hill Surgery, Bury St Edmunds, UK.

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http://bjgp.org/lookup/doi/10.3399/bjgp19X705653
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http://dx.doi.org/10.3399/bjgp19X705653DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6774708PMC
October 2019
7 Reads

Sciatic nerve and its variations: is it possible to associate them with piriformis syndrome?

Arq Neuropsiquiatr 2019 23;77(9):646-653. Epub 2019 Sep 23.

Centro Universitário UNIFACISA, Campina Grande PB, Brasil.

The sciatic nerve forms from the roots of the lumbosacral plexus and emerges from the pelvis passing inferiorly to the piriformis muscle, towards the lower limb where it divides into common tibial and fibular nerves. Anatomical variations related to the area where the nerve divides, as well as its path, seem to be factors related to piriformis syndrome. OBJECTIVE To analyze the anatomical variations of the sciatic nerve and its clinical implications. Read More

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http://dx.doi.org/10.1590/0004-282X20190093DOI Listing
April 2020
7 Reads

Complementary Specific Pelvic Sequences on Routine Lumbar Magnetic Resonance Imaging Scans: An Imaging-Based Study Focused on Piriformis Syndrome.

Turk Neurosurg 2019 ;29(5):698-704

Acibadem Mehmet Ali Aydinlar University, Vocational School of Health Sciences, Istanbul, Turkey.

Aim: To discuss the rationale and merit of specific pelvic sequences as an adjunct to routine lumbar magnetic resonance imaging (MRI) for early detection of piriformis syndrome (PS) and to disclose its frequency in patients who underwent radiological evaluation.

Material And Methods: This retrospective, imaging-based study included all individuals who underwent lumbar MRI and those who were further evaluated with a pelvic MRI, but excluded all high-energy trauma cases. The patients' demographics and radiological features were reviewed using electronic patient records and hospital-based picture image archiving and communication system. Read More

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http://dx.doi.org/10.5137/1019-5149.JTN.25863-19.2DOI Listing
December 2019
5 Reads

Ultrasound-guided dry needling decreases pain in patients with piriformis syndrome.

Muscle Nerve 2019 11 27;60(5):558-565. Epub 2019 Aug 27.

Rehabilitation Research Center, Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.

Introduction: Piriformis muscle syndrome (PMS) is a disorder that can lead to symptoms of buttock pain and limited hip-joint mobility, and may have an impact on quality of life.

Methods: Thirty-two patients with PMS were randomized to the treatment group, which included three sessions of ultrasound-guided dry needling (DN) of the piriformis muscle (n = 16), or a waitlist control group (n = 16). The primary outcome was pain intensity measured on the visual analog scale recorded at baseline and then at 72 hours and 1 week after treatment. Read More

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http://dx.doi.org/10.1002/mus.26671DOI Listing
November 2019
2 Reads

Relapsing piriformis syndrome treated with botulinum toxin injections.

BMJ Case Rep 2019 Aug 9;12(8). Epub 2019 Aug 9.

Neurology, Neurocenter of Southern Switzerland, Lugano, Switzerland.

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http://dx.doi.org/10.1136/bcr-2019-230981DOI Listing
August 2019
15 Reads

Anatomical causes of compression of the sciatic nerve in the pelvis. Piriform syndrome.

Rev Esp Cir Ortop Traumatol 2019 Nov - Dec;63(6):424-430. Epub 2019 Jul 29.

Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, España; Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, España.

Objective: The piriformis syndrome is one of the etiologies of pelvic pain due to the sciatic nerve's entrapment by the piriformis muscle. Nowadays this syndrome might be difficult to be diagnosed. The aim of this study is to know the prevalence of anatomic variations in our population that may contribute to the appearance of piriformis syndrome. Read More

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http://dx.doi.org/10.1016/j.recot.2019.06.002DOI Listing
April 2020
7 Reads

Is the FAIR-test a fair method of detecting piriformis syndrome?

Muscle Nerve 2019 09 26;60(3):E20. Epub 2019 Jul 26.

Sunnybrook Health Sciences Centre, University of Toronto.

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http://dx.doi.org/10.1002/mus.26634DOI Listing
September 2019
4 Reads

In response to Dr Robinson's letter on piriformis syndrome.

Muscle Nerve 2019 09 26;60(3):E21. Epub 2019 Jul 26.

Albert Einstein College of Medicine, Physical Medicine and Rehabilitation, Bronx, New York.

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http://dx.doi.org/10.1002/mus.26635DOI Listing
September 2019
5 Reads

Quadratus Femoris muscle causing deep gluteal syndrome: A rare cause of refractory sciatica of extraspinal origin in the presence of an anatomic variation.

J Back Musculoskelet Rehabil 2019 ;32(4):667-670

Department of Oncologic and Degenerative Spine Surgery, IRCCS Rizzoli Orthopedic Institute, Bologna, Italy.

Background: Sciatica of extraspinal origin represents both a diagnostic and a therapeutic challenge for spine specialists. Among these, quadratus femoris muscle (QF) is often overlooked as a pain-generator.

Reported Case: A 62-year old man was referred from general practitioner for isolated sciatica in the left leg, refractory to conservative treatments. Read More

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http://dx.doi.org/10.3233/BMR-191523DOI Listing
December 2019
10 Reads
1.041 Impact Factor

Rash, Radiculopathy, and Cognitive Biases.

Aerosp Med Hum Perform 2019 Jul;90(7):652-654

Physicians rely on intuition and pattern recognition to rapidly evaluate and treat patients. While the realities of our medical system require liberal use of these heuristics to efficiently make clinical decisions, such thinking patterns are error-prone-leaving the clinician at the whims of their cognitive biases. We describe a case of Lyme disease in which a pilot's rash and radicular pain were misdiagnosed on two separate occasions until, nearly a month after initially seeking medical care, the pilot was appropriately diagnosed and treated. Read More

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http://dx.doi.org/10.3357/AMHP.5339.2019DOI Listing
July 2019
14 Reads

Correction to: Piriformis pyomyositis, a cause of piriformis syndrome-a systematic search and review.

Clin Rheumatol 2019 07;38(7):2025

Department of Rheumatology, Faculty of Behavioral Science, University of Twente, Enschede, Netherlands.

The First name of the co-author of the article mentioned above was incomplete. The author's complete name should have been "Md Abu Bakar Siddiq" instead of "Abu Bakar Siddiq". The original article has been corrected. Read More

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http://dx.doi.org/10.1007/s10067-019-04605-2DOI Listing
July 2019
12 Reads

Piriformis Syndrome: A Narrative Review of the Anatomy, Diagnosis, and Treatment.

PM R 2019 08 22;11 Suppl 1:S54-S63. Epub 2019 Jul 22.

Division of Physical Medicine and Rehabilitation, Department of Orthopaedics, Washington University School of Medicine, St. Louis, MO.

Piriformis syndrome is a form of sciatica caused by compression of the sciatic nerve by the piriformis muscle. It is a relatively uncommon, but not insignificant, cause of sciatica. The diagnosis of piriformis syndrome is complicated by the large differential diagnosis of low back and buttock pain with many diagnoses having overlapping symptoms. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/pmrj.12189
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http://dx.doi.org/10.1002/pmrj.12189DOI Listing
August 2019
66 Reads

Piriformis pyomyositis, a cause of piriformis syndrome-a systematic search and review.

Clin Rheumatol 2019 Jul 2;38(7):1811-1821. Epub 2019 May 2.

Department of Rheumatology, Faculty of Behavioral Science, University of Twente, Enschede, Netherlands.

Piriformis pyomyositis is a rare form of purulent skeletal myositis. As previous studies concerning piriformis pyomyositis had lower level of evidence and no systematic review has been published yet, we performed a systematic search to review and describe causes, symptoms, red flags, and available treatment options for piriformis pyomyositis. Using PubMed and PubMed Central databases, we found 21 articles describing 23 cases of piriformis pyomyositis. Read More

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http://dx.doi.org/10.1007/s10067-019-04552-yDOI Listing
July 2019
12 Reads

Endoscopic Sciatic Nerve Decompression After Fracture or Reconstructive Surgery of the Acetabulum in Comparison With Endoscopic Treatments in Idiopathic Deep Gluteal Syndrome.

Clin J Sport Med 2019 05;29(3):203-208

Department of Orthopedic Surgery, Chonbuk National University Hospital, Jeonju, South Korea.

Objective: The purpose of this study was to assess the endoscopic findings of the sciatic nerve and clinical outcomes of major traumatic sciatic nerve neuropathies after fracture or reconstructive surgery of the acetabulum with idiopathic deep gluteal syndrome (DGS) groups.

Design: Retrospective review of patient reports.

Setting: Level I trauma center of a tertiary university hospital. Read More

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http://dx.doi.org/10.1097/JSM.0000000000000504DOI Listing
May 2019
8 Reads

Physiotherapist management of a patient with spastic perineal syndrome and subsequent constipation: a case report.

Physiother Theory Pract 2019 Apr 15:1-10. Epub 2019 Apr 15.

b PhyWorld Physiotherapy Clinic, Arjun Marg , Defence Colony , New Delhi , India.

Background And Purpose: The purpose of this case report is to describe the benefits of manual therapy techniques, including mobilization and stretching, in the management of a patient with chronic constipation.

Case Description: A 17-year-old male with an 8-month history of constipation and complaint of incomplete evacuation after defecation was referred for therapy. The patient was diagnosed with a spastic perineal syndrome. Read More

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https://www.tandfonline.com/doi/full/10.1080/09593985.2019.1
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http://dx.doi.org/10.1080/09593985.2019.1603259DOI Listing
April 2019
26 Reads

An Obvious and Potentially Neglected Cause of Buttock Pain: Gluteus Maximus Dysfunction.

Am J Phys Med Rehabil 2020 04;99(4):e53

From the Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan (C-HW); and Department of Physical Medicine and Rehabilitation, Centre hospitalier de l'Université de Montréal, Montreal, Québec, Canada (MB-R).

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http://dx.doi.org/10.1097/PHM.0000000000001182DOI Listing
April 2020
1 Read
2.012 Impact Factor

Use of Mannitol and Vitamins B in Piriformis Syndrome: A Possible Treatment Modality?

J Res Pharm Pract 2019 Jan-Mar;8(1):36-37

Department of Pharmacy, Singapore General Hospital, Singapore.

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http://dx.doi.org/10.4103/jrpp.JRPP_18_93DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6400030PMC
March 2019
7 Reads

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

Muscle Nerve 2019 04 27;59(4):411-416. Epub 2019 Feb 27.

Department of Ultrasound, Qianfoshan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, 250014, Jinan, Shandong Province, China.

Introduction: Piriformis 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.

Methods: Thirty-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. Read More

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http://dx.doi.org/10.1002/mus.26418DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6594076PMC
April 2019
9 Reads

Ultrasound elastography findings in piriformis muscle syndrome.

Indian J Radiol Imaging 2018 Oct-Dec;28(4):412-418

Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Sütçü İmam University, Kahramanmaraş, Turkey.

Background: Piriformis muscle syndrome (PMS) is relatively less known and underestimated because it is confused with other clinical pathological conditions. Delays in its diagnosis may lead to chronic somatic dysfunction and muscle weakness.

Objective: Here, we aimed to evaluate the diagnostic performance of the ultrasound elastography (UE) as an easy, less-invasive, and cost-effective method for early diagnosis of PMS. Read More

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http://www.ijri.org/text.asp?2018/28/4/412/247760
Publisher Site
http://dx.doi.org/10.4103/ijri.IJRI_133_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6319104PMC
January 2019
14 Reads

Piriformis syndrome - a diagnosis comes into its own.

Muscle Nerve 2019 04 4;59(4):395-396. Epub 2019 Feb 4.

Montefiore Medical Center, New York, USA.

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http://dx.doi.org/10.1002/mus.26417DOI Listing
April 2019
13 Reads

Epidemiology and etiology of secondary piriformis syndrome: A single-institution retrospective study.

J Clin Neurosci 2019 Jan 24;59:209-212. Epub 2018 Oct 24.

Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA. Electronic address:

Piriformis syndrome (PS) is a rare etiology of extra-spinal sciatica in which pathologies associated with or around the piriformis muscle (PM) irritate the adjacent sciatic nerve (SN), however, there is scarcity in the literature regarding its exact etiologies, thus, we performed a retrospective study to elucidate the epidemiology of PS and assess various causes of the syndrome. Our study included patients assessed at our institution who presented with sciatica of non-spinal origin between May 2014 and December 2015. Radiology reports of all patients who received pelvic MRI were examined for positive findings involving PM and SN. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.10.069DOI Listing
January 2019
28 Reads

EMG in piriformis syndrome diagnosis: Reliability of peroneal H-reflex according to results obtained after surgery, Botox injection and medical treatment.

J Clin Neurosci 2019 Jan 28;59:55-61. Epub 2018 Nov 28.

Orthopedic Surgery Department, Sacré-Coeur Hospital, P.O. Box 116, Hazmieh, Lebanon.

Diagnosing piriformis syndrome (PS) throughout the past decades was not that easy, however peroneal H-reflex was proved as reliable test for PS with the change in wave amplitude and delay in conduction as parameters for diagnosis. We interpreted these parameters according to treatment's results carried out for patients presenting clinical PS, aiming to define a threshold value for peroneal H-reflex delay to accurately diagnose. A retrospective mono-centric review of 27 patients, 9 females and 18 males, aged 22-65 years, benefited from peroneal H-reflex test and treated for clinical PS. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09675868183056
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http://dx.doi.org/10.1016/j.jocn.2018.11.007DOI Listing
January 2019
25 Reads
1.318 Impact Factor

Effect of Mannitol plus Vitamins B in the management of patients with piriformis syndrome.

J Back Musculoskelet Rehabil 2019 ;32(2):329-337

Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.

Background: Piriformis syndrome (PS) is an entrapment of the sciatic nerve by the piriformis muscle, or myofascial pain from the piriformis muscle.

Objective: The aim of this study was to investigate the effectiveness of Mannitol plus Vitamins B regime in the management of PS.

Methods: Twenty two patients were included in this study and received 250 ml of mannitol 20% intravenous infusion for 5 days + Vitamins B (vitamin B1 10 mg + vitamin B2 10 mg + vitamin B12 50 μg PO) for 6 weeks. Read More

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http://dx.doi.org/10.3233/BMR-170983DOI Listing
May 2019
18 Reads

The majority of piriformis muscles are innervated by the superior gluteal nerve.

Clin Anat 2019 Mar 21;32(2):282-286. Epub 2018 Dec 21.

Seattle Science Foundation, Seattle, Washington.

The piriformis muscle is clinically implicated in pain disorders, posterior approaches for total hip arthroplasty, and iatrogenic injury to the muscle and the surrounding nerves. The piriformis muscle has been said to receive innervation from L5 to S3 ventral rami with most sources using S1 and S2 ventral rami as the most common innervation this muscle. However, descriptions of the nerve in the literature are vague. Read More

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http://doi.wiley.com/10.1002/ca.23311
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http://dx.doi.org/10.1002/ca.23311DOI Listing
March 2019
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Endoscopic release of the piriformis tendon and sciatic nerve exploration.

J Hip Preserv Surg 2018 Aug 22;5(3):301-306. Epub 2018 Jun 22.

Department of Adult Joint Reconstruction, National Rehabilitation Institute of México, Av. México-Xochimilco No. 289, Col. Arenal de Guadalupe, México D.F. C.P, México.

Robinson, in 1947 introduced for the first time the term 'piriformis syndrome'. More recently, many etiologies of sciatic nerve entrapment around the gluteal region or the non-discogenic area have been identified, resulting in the use of a new term 'The Deep Gluteal Syndrome'. The purpose of this study was to assess the outcomes following the endoscopic release of sciatic nerve entrapment. Read More

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https://academic.oup.com/jhps/article/5/3/301/5042966
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http://dx.doi.org/10.1093/jhps/hny018DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6206698PMC
August 2018
39 Reads

Ultrasound-guided Dry Needling Treatment of Myofascial Trigger Points for Piriformis Syndrome Management: A Case Series.

J Chiropr Med 2018 Sep 26;17(3):198-200. Epub 2018 Aug 26.

Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.

Objective: The purpose of this case series was to describe the outcomes of diagnostic ultrasound-assisted dry needling in the management of piriformis syndrome.

Clinical Features: Case 1: a 45-year-old woman reported gluteal pain occasionally radiating in the sciatic region. Her magnetic resonance imaging showing sciatic nerve edema in the underlying portion of the piriformis muscle. Read More

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http://dx.doi.org/10.1016/j.jcm.2018.04.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6141415PMC
September 2018
24 Reads

A critical overview of the current myofascial pain literature - July 2018.

J Bodyw Mov Ther 2018 07 27;22(3):673-684. Epub 2018 Jun 27.

China Medical University, Taichung, Taiwan. Electronic address:

In the current issue of this clinical overview, we are pleased to include several basic research studies ranging from the differentiation of radicular and non-radicular low back pain based on the presence of trigger points (TrPs) to the role of TrPs in patients with osteoarthritis, the diagnostic criteria of TrP, the accurate placement of needles in the piriformis muscle with dry needling (DN), and the reliability of TrP identification, among others. As usual, there are many new DN studies, but also several review papers, and manual TrP research. Contributing authors come from as many as 15 different countries! Read More

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https://linkinghub.elsevier.com/retrieve/pii/S13608592183016
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http://dx.doi.org/10.1016/j.jbmt.2018.06.005DOI Listing
July 2018
20 Reads