422 results match your criteria Piriformis Syndrome


Effect of integrated neuromuscular inhibition technique compared with positional release technique in the management of piriformis syndrome.

J Osteopath Med 2021 May 31. Epub 2021 May 31.

Department of Physiotherapy, Faculty of Allied Health Sciences, College of Health Sciences, Bayero University, Kano, Nigeria.

Context: Studies have indicated that the muscle energy technique (MET) and the positional release technique (PRT) are effective in the management of piriformis syndrome (PS); however, evidence is scarce regarding the combination of these techniques in the form of an integrated neuromuscular inhibition technique (INIT) in the management of individuals with PS. Although a previous trial investigated the effect of INIT for PS, that study did not integrate Ruddy's reciprocal antagonist facilitation (RRAF) method into the INIT protocol, nor did the authors diagnose PS according to established criteria.

Objectives: To examine the effects of INIT with integrated RRAF compared with PRT in the management of patients diagnosed with PS. Read More

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Long Completely Cystic Sciatic Schwannoma: A Rare Case.

Case Rep Oncol 2021 Jan-Apr;14(1):561-567. Epub 2021 Mar 22.

Pathology and Anatomy Department, Airlangga University, Surabaya, Indonesia.

Schwannomas are the most common peripheral nerve sheath tumors. Benign schwannomas with malignant transformation are rarely reported. Most common schwannomas occur in the head and neck region. Read More

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Chronic hip pain in adults: Current knowledge and future prospective.

J Anaesthesiol Clin Pharmacol 2020 Oct-Dec;36(4):450-457. Epub 2020 Sep 26.

Consultant Orthopaedics, Orthomax Hospital, Panchkula, Haryana, India.

Chronic hip pain is distressing to the patient as it not only impairs the daily activities of life but also affects the quality of life. Chronic hip pain is difficult to diagnose as patients often present with associated chronic lumbar spine and/or knee joint pain. Moreover, nonorthopaedic causes may also present as chronic hip pain. Read More

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September 2020

Little needle-scalpel for piriformis syndrome: A protocol for systematic review and meta-analysis.

Medicine (Baltimore) 2021 Mar;100(12):e25242

Jiangxi University of Traditional Chinese Medicine.

Background: Piriformis syndrome (PS) is a condition in which the sciatic nerve is compressed when passing through the inferior mouth of the piriformis muscle, mainly caused by pain in one hip and leg. In severe cases, patients may experience severe buttock and lower limb pain, discomfort, difficulty walking, and claudication. It is estimated that the annual incidence of low back pain and sciatica is about 40 million cases, and the annual incidence of piriformis syndrome is about 2. Read More

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The Interexaminer Reproducibility and Prevalence of Lumbar and Gluteal Myofascial Trigger Points in Patients With Radiating Low Back Pain.

Arch Rehabil Res Clin Transl 2020 Jun 30;2(2):100044. Epub 2020 Jan 30.

Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.

Objective: To determine the interexaminer reproducibility for judging the presence, number, and location of leg-pain referring myofascial trigger points, and their prevalence in patients with low back pain with and without concomitant leg pain referral.

Design: An interexaminer reproducibility study.

Setting: An outpatient public Hospital Spine Centre in Southern Denmark. Read More

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Piriformis Pyomyositis Presenting as Migratory Hip to Knee Pain: A Case Report.

JBJS Case Connect 2020 10 16;10(4):e20.00251. Epub 2020 Oct 16.

Department of Orthopaedics, Changi General Hospital, Singapore.

Case: The authors report a case of piriformis pyomyositis in a teenage female patient with fever and left hip pain. Her pain migrated to the knee with concurrent near resolution of hip pain. Imaging revealed an abscess in the left piriformis with pus tracking along the sciatic nerve sheath. Read More

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October 2020

Intrapelvic Nerve Entrapment Syndrome Caused by a Variation of the Intrapelvic Piriformis Muscle and Abnormal Varicose Vessels.

Int Neurourol J 2021 Jan 19. Epub 2021 Jan 19.

Department of Thoracic Surgery, University of Health Science Kartal Dr. Lutfi Kirdar City Hospital, istanbul, Turkey.

Entrapment neuropathy of the sciatic nerve and pudendal nerve are painful syndromes that are mostly overlooked by physicians. Laparoscopic surgical intervention for nerve entrapment syndromes of the posterior pelvis focuses on removal of the compression lesion with the purpose of eliminating the suspected cause of the sciatica, as well as pudendal neuralgia. The authors report the rare event of sciatic and pudendal nerve entrapment, which is caused by aberrant vessels and a variant piriformis muscle bundle as a seldom diagnosed cause of sciatica and pelvic pain, for both neurosurgeons and neuropelveologists. Read More

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January 2021

Computed Tomography-Guided Percutaneous Infiltrations for Piriformis Syndrome: A Single-Center Retrospective Study.

J Long Term Eff Med Implants 2020 ;30(2):113-118

Second Radiology Department, Medical School, National and Kapodistrian University of Athens, University General Hospital "ATTIKON", Athens, Greece.

Piriformis syndrome (PS), first described by Yeoman in 1928, is a general term referring to low back pain, sciatica, and instability. PS has a 6% incidence rate worldwide. In this study, we aim to retrospectively evaluate the effectiveness of computed tomography (CT)-guided percutaneous infiltration in a series of consecutive PS patients who have symptoms that are refractory to conservative therapies. Read More

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January 2020

Complete resolution of recurrent piriformis syndrome after piriformis resection with 3 years' follow up: A case report.

Int J Surg Case Rep 2020 20;77:576-579. Epub 2020 Nov 20.

Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia; Department of Neurosurgery, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.

Introduction: Piriformis syndrome (PS) is an uncommon neuromuscular condition characterized by buttock pain radiating to the leg. Although the goal of PS treatment is symptom relief, it is difficult in some patients using conservative treatment alone.

Presentation Of Case: A 72-year-old male underwent piriformis resection after failed sequential steroid injection of the piriformis. Read More

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November 2020

Clinico-radiological review of peripheral entrapment neuropathies - Part 2 Lower limb.

Eur J Radiol 2021 Feb 17;135:109482. Epub 2020 Dec 17.

Department of Orthopedics, All India Institute of Medical Sciences, New Delhi, India.

Purpose: This review discusses the relevant anatomy, etiopathogenesis, current notions in clinical and imaging features as well as management outline of lower limb entrapment neuropathies.

Methods: The review is based on critical analysis of the current literature as well as our experience in dealing with entrapment neuropathies of the lower limb.

Results: The complex anatomical network of nerves supplying the lower extremities are prone to entrapment by a heterogenous group of etiologies. Read More

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February 2021

Sciatic Nerve Variants and the Piriformis Muscle: A Systematic Review and Meta-Analysis.

Cureus 2020 Nov 17;12(11):e11531. Epub 2020 Nov 17.

Anatomy and Surgical Anatomy, Aristotle University of Thessaloniki, Thessaloniki, GRC.

The present systematic review and meta-analysis provides a comprehensive assessment of the sciatic nerve (SN) variants relative to the piriformis muscle (PM) and compares those variants' prevalence among different geographical populations with respect to gender and laterality. A database search was conducted to identify cadaveric studies pertinent to SN variants relative to the PM. A total of 44 articles were included. Read More

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November 2020

Guidelines for botulinum neurotoxin injections in piriformis syndrome.

Clin Anat 2020 Dec 21. Epub 2020 Dec 21.

Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea.

Background: The piriformis muscle is normally involved in piriformis syndrome and can be treated with botulinum neurotoxin using several different injection methods. However, definitive injection guidelines for the muscle have not been reported previously.

Aims: This study aimed to determine the ideal area for injections based on the intramuscular nerve distribution as obtained using a modified Sihler's staining technique. Read More

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December 2020

Piriformis syndrome: pain response outcomes following CT-guided injection and incremental value of botulinum toxin injection.

Diagn Interv Radiol 2021 Jan;27(1):126-133

Department of Radiology, UT Southwestern Medical Center, Dallas, Texas, USA; Department of Orthopedics, UT Southwestern Medical Center, Dallas, Texas, USA.

Purpose: Piriformis syndrome is a common pain condition affecting the buttock and posterior hip with or without radiation to the leg, and management of the condition involves many treatments. In this study, we hypothesize that a CT-guided injection with botulinum toxin is more effective in providing pain relief than a CT-guided injection without Botox.

Methods: Overall, 97 consecutive patients with piriformis syndrome presented for a CT-guided injection of the piriformis muscle and perineural injection of the sciatic nerve. Read More

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January 2021

[Piriformis syndrome. Treatment under control of CT fluoroscopy].

Zh Nevrol Psikhiatr Im S S Korsakova 2020 ;120(10):85-90

Pirogov Russian National Research Medical University, Moscow, Russia.

Objective: To demonstrate one of the effective methods of treatment of the piriformis syndrome under the control of a highly technological visualization method.

Material And Methods: Eight patients (7 women and 1 man), aged 44 to 63 years, with piriformis syndrome, were studied from 2016 to 2018. The main complaints of the patients were pain in the lumbosacral spine with irradiation to the gluteal region and/or legs. Read More

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November 2020

Evaluation of the reliability and validity of Functional Assessment Of Chronic Illness Therapy-Spiritual Well-Being-Expanded in elderly patients with chronic orthopaedic diseases.

Psychogeriatrics 2021 Jan 11;21(1):32-41. Epub 2020 Nov 11.

First Knee Trauma Ward, Tianjin Hospital, Tianjin University, Tianjin, China.

Background: The Functional Assessment Of Chronic Illness Therapy-Spiritual Well-Being-Expanded (FACIT-Sp-Ex) scale can simultaneously evaluate the quality of life and spiritual health level of patients with chronic orthopaedic diseases. We performed the FACIT-Sp-Ex scale in Chinese, and tested its reliability and validity in patients with chronic orthopaedic diseases.

Methods: There were 249 patients with chronic orthopaedic diseases who were selected for the questionnaire survey. Read More

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January 2021

Ultrasound-guided trigger point injection for piriformis syndrome in the emergency department.

J Am Coll Emerg Physicians Open 2020 Oct 24;1(5):876-879. Epub 2020 Jun 24.

Department of Emergency Medicine The Brooklyn Hospital Center Brooklyn New York USA.

Piriformis syndrome, a myofascial pain disorder characterized by deep gluteal pain that radiates to the ipsilateral lower back and/or posterior thigh, is an underreported cause of low back pain frequently misdiagnosed in the emergency department (ED). Often refractory to oral pain medications, this syndrome can be debilitating. Ultrasound-guided trigger point injection of the piriformis muscle can treat piriformis syndrome, but no previous reports exist in the emergency medicine literature. Read More

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October 2020

Frequency of potential causes of lower back pain and incidental findings in patients with suspected sacroiliitis: retrospective analysis of 886 patients with negative sacroiliac MRI examination for sacroiliitis.

Acta Radiol 2020 Oct 29:284185120968565. Epub 2020 Oct 29.

Department of Radiology, Meram School of Medicine, Necmettin Erbakan University, Konya, Turkey.

Background: In a majority of patients with suspected sacroiliitis (SI) who underwent sacroiliac magnetic resonance imaging (MRI), imaging studies may be normal, may depict other causes for pain, or may show clinically irrelevant incidental findings.

Purpose: To determine the prevalence of possible etiologies other than SI and frequency of incidental findings demonstrated on sacroiliac MRI examinations in a cohort of patients with lower back pain and suspected SI.

Material And Methods: Sacroiliac MRI examinations of 1421 patients with suspected SI were retrospectively reviewed. Read More

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October 2020

Exploring the Risk Factors for the Misdiagnosis of Osteonecrosis of Femoral Head: A Case-Control Study.

Orthop Surg 2020 Dec 16;12(6):1792-1798. Epub 2020 Oct 16.

Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China.

Objective: The purpose of the present study was to evaluate the present situation and risk factors for the misdiagnosis of osteonecrosis of femoral head (ONFH), providing the basis for accurate diagnosis of ONFH.

Methods: For this retrospective study, 1471 patients with ONFH were selected from the China Osteonecrosis of Femoral Head Database (CONFHD). These patients had been recruited between July 2016 and December 2018. Read More

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December 2020

Postoperative Deep Gluteal Syndrome After Hip Arthroscopic Surgery.

Orthop J Sports Med 2020 Sep 28;8(9):2325967120951118. Epub 2020 Sep 28.

Department of Orthopaedic Surgery, University of Occupational and Environmental Health, Kitakyushu, Japan.

Background: Deep gluteal syndrome (DGS) is an uncommon source of buttock and groin pain, resulting from entrapment of the sciatic nerve in the deep gluteal space. The incidence and risk factors of postoperative DGS after primary hip arthroscopic surgery are currently unknown.

Purpose: To investigate the incidence and risk factors of postoperative DGS after primary hip arthroscopic surgery. Read More

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September 2020

Deep gluteal space anatomy and its relationship with deep gluteal pain syndromes.

Hip Int 2020 Oct 11:1120700020966255. Epub 2020 Oct 11.

São João University Hospital, Porto, Portugal.

Introduction: Increasing interest has been seen in understanding the anatomy and biomechanics involved in the Deep Gluteal Syndrome, therefore the main objective of our paper was to define the anatomy of the deep gluteal space concerning the important osseous, muscular and neurological structures.

Methods: 12 cadaveric models (24 hemipelvises) were used. We proceeded with classical anatomic dissection and evaluated numerous osseous, musculotendinous and neurologic structures and their relationships. Read More

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October 2020

Extra-spinal sciatica and sciatica mimics: a scoping review.

Korean J Pain 2020 Oct;33(4):305-317

Faculty of Behavioral Management and Social Sciences, Psychology Health and Technology, University of Twente, Enschede, The Netherlands.

Not all sciatica-like manifestations are of lumbar spine origin. Some of them are caused at points along the extra-spinal course of the sciatic nerve, making diagnosis difficult for the treating physician and delaying adequate treatment. While evaluating a patient with sciatica, straightforward diagnostic conclusions are impossible without first excluding sciatica mimics. Read More

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October 2020

A minimally invasive surgical approach for the treatment of piriformis syndrome: a case series.

Chin Neurosurg J 2020 30;6. Epub 2020 Mar 30.

Department of Neurosurgery, the George Washington University, 2150 Pennsylvania Avenue, NWSuite 7-420, Washington, DC 20037 USA.

Background: Piriformis syndrome accounts for approximately 6% of patients who present with sciatic pain. There are many treatment options ranging from physical therapy, to trigger point injections, to surgical intervention. We discuss a surgical method that represents a minimally invasive technique for the treatment of piriformis syndrome. Read More

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Effects of ELDOA and post-facilitation stretching technique on pain and functional performance in patients with piriformis syndrome: A randomized controlled trial.

J Back Musculoskelet Rehabil 2020 ;33(6):983-988

Background: Piriformis syndrome (PS) is a neuro-muscular condition, which is often underdiagnosed in clinical settings. This study will determine the effects of myofascial stretching Elongation Longitudinaux Avec Decoaption Osteo Articulaire (ELDOA) and post-facilitation stretching of the piriformis muscle in patients with PS.

Objective: We aimed to compare the effects of ELDOA and post-facilitation stretching of the piriformis muscle on pain, muscle length and functional performance in patients with PS. Read More

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

World Neurosurg 2020 09;141:544

Department of Physical Medicine and Rehabilitation, Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Istanbul, Turkey.

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September 2020

A new treatment modality in piriformis syndrome: Ultrasound guided dry needling treatment.

Agri 2020 Aug;32(3):175-176

Department of Radiology, Sarıkamış State Hospital, Kars, Turkey.

Piriformis syndrome is a painful entrapment neuropathy caused by compression of the sciatic nerve under piriformis muscle for structural or acquired reasons. Myofascial pain syndrome is the most common cause. There are physical therapy modalities, stretching exercises, injection therapies and medical treatment approaches. Read More

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Coexistence of Brachial Plexus-Anterior Scalene and Sciatic Nerve-Piriformis Variants.

Cureus 2020 Jul 10;12(7):e9115. Epub 2020 Jul 10.

Anatomy, Lake Erie College of Osteopathic Medicine, Bradenton, USA.

The trunks of the brachial plexus typically pass through the interscalene triangle, between the anterior and middle scalene muscles and superior to the first rib. Likewise, the two components of the sciatic nerve, tibial and common fibular nerves, usually join and pass together inferior to the piriformis muscle. We present a cadaver with anatomic variations of both the right brachial plexus-interscalene triangle relationship and the sciatic nerve-piriformis relationship. Read More

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Lower extremity entrapment neuropathies.

Best Pract Res Clin Rheumatol 2020 06 31;34(3):101565. Epub 2020 Jul 31.

Department of Neurology, 60 Fenwood Road, 4th Floor, Boston, MA, 02115, USA. Electronic address:

Entrapment neuropathies are frequently encountered by rheumatologists, not only because they are common but also because of their association with certain rheumatological and systemic disorders. Recognizing entrapment neuropathy early can help avoid progressive neurological deficits, as well as facilitate appropriate treatment measures, which can effectively minimize a patient's symptoms. Entrapment neuropathies may be distinguished from other musculoskeletal causes of lower extremity pain by identifying characteristic patterns of weakness and/or sensory loss, so a focused bedside neurological examination is key for diagnosis. Read More

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[Effect of elongated-needle by Hui-puncture method on piriformis syndrome].

Zhen Ci Yan Jiu 2020 Jul;45(7):583-6

Department of Acupuntrue, Massage and Traditional Medical Traumatology and Orthopedic, The Sixth People's Hospital, Shanghai 200233, China.

Objective: To observe the clinical effect of elongated needle by Hui-puncture method in the treatment of piriformis syndrome.

Methods: A total of 100 piriformis syndrome patients were randomly divided into routine acupuncture group (=50) and elongated needle by Hui-puncture method (Hui-puncture) group (=50). For patients of the routine acupuncture group, Huantiao (GB30), Juliao (GB29), Zhibian (BL54), Weizhong (BL40), Yanglingquan (GB34), Juegu (GB39) and Ashi-point on the affected side of the body were punctured with filiform needles for 30 min. Read More

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