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Tae Hoon Ro, Lance Edmonds
Piriformis syndrome is an uncommon condition that causes significant pain in the posterior lower buttocks and leg due to entrapment of the sciatic nerve at the level of the piriformis muscle. In the typical anatomical presentation, the sciatic nerve exits directly ventral and inferior to the piriformis muscle and continues down the posterior leg. Several causes that have been linked to this condition include trauma, differences in leg length, hip arthroplasty, inflammation, neoplastic mass effect, and anatomic variations...
2018: Journal of Clinical Imaging Science
Amélie Levesque, Thibault Riant, Stéphane Ploteau, Jérôme Rigaud, Jean-Jacques Labat
Background: The evaluation of chronic pelvic and perineal pain (CPP) is often complex. The patient's description of the pain often appears to be disproportionate to the limited findings on physical examination and/or complementary investigations. The concept of central sensitization may allow better understanding and management of patients with CPP. Objective: The aim of this study was to elaborate a clinical evaluation tool designed to simply identify sensitization in pelvic pain...
March 7, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Rhiannon L Wallace, Danielle L Hirkala, Louise M Nelson
The ability of <i>Pseudomonas fluorescens</i> isolates 1-112, 2-28, and 4-6, to control <i>Mucor piriformis</i> (Mucor rot) on 'Gala', 'McIntosh', 'Ambrosia', and 'Spartan' apples in commercial cold storage, and their possible mechanisms of action were investigated. Isolates 1-112 and 2-28, provided significant levels of disease control on 'McIntosh' and 'Spartan' apples, while isolate 4-6 provided control of Mucor rot on 'Gala' and 'Spartan' apples compared with control fruits after 15 weeks storage at 0°C...
March 5, 2018: Canadian Journal of Microbiology
Forsan Jahshan, Eyal Sela, Eli Layous, Einat Levy, Niddal Assadi, Etgar Shilo, Nour Ibrahim, Dor Maayan, Ohad Ronen
OBJECTIVES: To establish clinical criteria for performing computed tomography scan for suspected upper digestive tract fishbone. METHODS: This is a prospective study of all adult patients referred to the otolaryngology emergency department at our medical center for suspected fishbone in the upper digestive tract after no fishbone was seen on physical examination. The patients were divided into two groups: 1) The first was a high clinical suspicion group, which included patients with at least one of the following criteria: drooling, accumulation of saliva in the sinus piriformis, fever, referral 24 hours after the ingestion with worsening/continuing symptoms, and readmission...
February 15, 2018: Laryngoscope
H M Liao, Y X Liu, H J Nan, X Jiang
No abstract text is available yet for this article.
February 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
Yasuhiro Morimoto, Tomoki Oshikawa, Atsushi Imai, Yu Okubo, Koji Kaneoka
[Purpose] To measure electromyographic activity of the piriformis using fine-wire electrodes during 7 hip movements. [Subjects and Methods] Eleven healthy men, without severe low back pain or lower limb injury, participated in this study. Fine-wire electrodes were inserted into the piriformis and surface electrodes were attached to the muscles in the hip region and the trunk muscles on the dominant arm side. Electromyographic signal amplitude was measured during 7 hip movements: side-lying external rotation in hip neutral position, side-lying abduction in hip neutral position, side-lying abduction in hip external rotation, side-lying abduction in hip internal rotation, prone extension in hip neutral position, prone extension in hip external rotation, and prone extension in hip internal rotation...
January 2018: Journal of Physical Therapy Science
Nirav Maniar, Anthony G Schache, Prasanna Sritharan, David A Opar
Anterior cruciate ligament (ACL) injuries are a burdensome condition due to potential surgical requirements and increased risk of long term debilitation. Previous studies indicate that muscle forces play an important role in the development of ligamentous loading, yet these studies have typically used cadaveric models considering only the knee-spanning quadriceps, hamstrings and gastrocnemius muscle groups. Using a musculoskeletal modelling approach, we investigated how lower-limb muscles produce and oppose key tibiofemoral reaction forces and moments during the weight acceptance phase of unanticipated sidestep cutting...
February 6, 2018: Scientific Reports
Yasaman Safarpour, Bahman Jabbari
This review evaluates the existing level of evidence for efficacy of BoNTs in different pain syndromes using the recommended efficacy criteria from the Assessment and Therapeutic Subcommittee of the American Academy of Neurology. There is a level A evidence (effective) for BoNT therapy in post-herpetic neuralgia, trigeminal neuralgia, and posttraumatic neuralgia. There is a level B evidence (probably effective) for diabetic neuropathy, plantar fasciitis, piriformis syndrome, pain associated with total knee arthroplasty, male pelvic pain syndrome, chronic low back pain, male pelvic pain, and neuropathic pain secondary to traumatic spinal cord injury...
January 31, 2018: Toxicon: Official Journal of the International Society on Toxinology
Z F Huang, D S Yang, Z J Shi, J Xiao
Objective: To assess the morphological parameters of the piriformis muscle through magnetic resonance imaging(MRI) so as to further elucidate the pathogenesis of piriformis syndrome (PS). Methods: From September 2015 to October 2016, 30 suspected PS patients and 30 normal controls were enrolled in this study from the Nanfang Hospital, Southern Medical University. The possible causative factors of the PS in the patients were obtained, and the PS patients were divided into subgroups according to the anatomic site of the tender regions...
January 2, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Najmeh Sedighimehr, Farideh Dehghan Manshadi, Nasim Shokouhi, Alireza Akbarzadeh Baghban
AIM: This study aimed to compare the prevalence of pelvic musculoskeletal dysfunctions in women with and without Chronic Pelvic Pain (CPP). MATERIALS &METHODS: A total of 84 women with and without CPP (42 in each group), participated in this cross-sectional analytical study. After collecting demographic information, clinical examinations were carried out to compare pelvic musculoskeletal dysfunctions between two groups. Kolmogorov-Smirnov (K-S) goodness-of-fit, Independent t, X2 and Pearson correlation tests were used for data analysis...
January 2018: Journal of Bodywork and Movement Therapies
A N Sadagatullah, M N Nazeeb, S Ibrahim
Introduction: Osteosynthesis of the femur using an interlocking nail is the gold standard for treating diaphyseal fractures of the femur. There are two established entry points for the antegrade interlocking nails which is the piriformis fossa or the greater trochanter. It has been reported that varus malalignment was frequently seen in proximal femur fracture which were treated with interlocking nail utilizing the greater trochanter entry point. The study was done to find out if the problem was of significance...
November 2017: Malaysian Orthopaedic Journal
Ke-Vin Chang, Wei-Ting Wu, Henry L Lew, Levent Özçakar
Ultrasound has emerged as one of the most utilized tools to diagnose musculoskeletal disorders and to assist in interventions. Traditionally, sonographic examination of the hip joint has been challenging because most of the major structures are deeply situated, thus requiring the use of curvilinear transducer for better penetrance. The posterior lateral hip is a frequent area for musculoskeletal pain and nerve entrapments. Common disorders include greater trochanteric pain syndrome, gluteus medius tendinopathy, piriformis syndrome, pudendal neuralgia and proximal hamstring tendinopathy...
January 11, 2018: American Journal of Physical Medicine & Rehabilitation
Özgür Kemal, Sinan Atmaca, Ayşe Bel-Çeçen, Berkan Düzgün, Hasibe Canan Aygün
Kemal Ö, Atmaca S, Bel-Çeçen A, Düzgün B, Aygün HC. The use of nasal trumpet as a non-invasive treatment method in congenital nasal stenosis. Turk J Pediatr 2017; 59: 210-213. Newborns and infants are dependent on nasal respiration and therefore, nasal obstructions may lead to life-threatening outcomes in this age group. Although the most common cause of nasal obstruction in newborns are choanal atresia, soft tissue edema, congenital nasal bone anomalies such as narrowness of the apertura piriformis and midnasal stenosis should be kept in mind...
2017: Turkish Journal of Pediatrics
Laura Tavera-Martínez, Margarita Marchant
Research regarding deep-sea benthic foraminifera in the Colombian Caribbean requires further development given the complete lack of information related to the different groups that constitute associations and the ecological functions they fulfill. For this purpose, a taxonomic description of Superfamily Komokioidea was composed from macrofauna samples from between 1,215 m and 3,179 m depth, obtained during the research cruise ANH-COL 4 and COL 5 carried out in 2014. Results showed foraminifera belonging to the three families: Komokiidae, Baculellidae, and Normaninidae, inclu-ding five genera (Lana, Komokia, Ipoa, Normaninam, and Catena) and five species (Lana neglecta, Komokia multiramosa, Normanina conferta, Ipoa fragila, and Catena piriformis)...
October 20, 2017: Zootaxa
Ryan P McGovern, Benjamin R Kivlan, RobRoy L Martin
Background: Stretching of the deep rotators of the hip is commonly employed in patients with lumbosacral, sacroiliac, posterior hip, and buttock pain. There is limited research demonstrating the effectiveness of common stretching techniques on the short external rotators of the hip. Purpose: The objective of this study was to evaluate length change during stretching of the superior and inferior fibers of the piriformis, superior gemellus, obturator internus, and inferior gemellus...
December 2017: International Journal of Sports Physical Therapy
F Li, S F Wang, P C Li, Y H Xue
Objective: To observe the possibility of posterior approach via sacrectomy for reaching intrapelvic sacral plexus and expose the deep intrapelvic origin of sciatic nerve from sacral plexus in order to perform nerve graft. Methods: Five adult cadaver specimens were used in the study with prone position in May 2012. Cut off the gluteus maximus along the origins and lift to the lateral side, the piriformis was lay beneath. The sciatic nerve and the inferior gluteal nerve pierced from the infrapiriformis foramen in the operative field...
December 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Sung Ho Choi, Nitin Adsul, Hyeun Sung Kim, Jee-Soo Jang, Il-Tae Jang, Seong-Hoon Oh
BACKGROUND: The causes of chronic diskogenic back pain have not yet been clearly identified. Neural ingrowth around the annulus is widely considered to be one of the possible cause. However, neuropathy around the annulus has yet to be observed visually. We report a case of a hotspot that was observed in an epiduroscopic view, but not in imaging findings. CASE DESCRIPTION: A 46-year-old woman was admitted with pain in the back, left buttock, and posterior thigh for 2 years...
February 2018: World Neurosurgery
Mohamed Mustafa Diab, Hao-Hua Wu, Edmund Eliezer, Billy Haonga, Saam Morshed, David W Shearer
INTRODUCTION: In many low and middle-income countries (LMICs) SIGN nail is commonly used for antegrade femoral intramedullary (IM) nailing, using a start site either at the tip of the greater trochanter or piriformis fossa. While a correct start site is considered an essential technical step; few studies have evaluated the impact of using an erroneous start site. This is particularly relevant in settings with limited access to fluoroscopy to aid in creating a nail entry point. The purpose of this study was to evaluate the impact of antegrade SIGN IM nailing start site on radiographic alignment and health-related quality of life...
February 2018: Injury
Olga Jurek, Piotr Wójtowicz, Antoni Krzeski
OBJECTIVE: The aim of the study was to estimate usability of the piezoelectric knife in larynx surgery. Prove that the piezoelectric staff can be used to do any different shape incision within the larynx cartilages. MATERIAL AND METHODS: 35 patients hospitalized in our Department in 2014-2016 were enrolled in our study. 24 patients went vertical partial laryngectomy and 1 patient went horizontal partial laryngectomy because of larynx cancer. 5 patients went partial laryngectomy because of low stage of piriformis recess cancer...
October 30, 2017: Otolaryngologia Polska
Masaki Takao, Yoshito Otake, Norio Fukuda, Yoshinobu Sato, Mehran Armand, Nobuhiko Sugano
BACKGROUND: Laxity of soft tissues after total hip arthroplasty is considered to be a cause of accelerated wear of bearing surfaces and dislocation. The purpose of this study is to assess the contribution of the anterior and posterior capsular ligamentous complexes and the short external rotators, except the quadratus femoris, on the stability of the hip against axial traction. METHODS: The study subjects comprised 7 fresh cadavers with 12 normal hip joints. In 6 hips, soft tissues surrounding the hip joint were resected in the following order to simulate the anterior approach: anterior capsule, posterior capsule, piriformis, conjoined tendon, and external obturator...
March 2018: Journal of Arthroplasty
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