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Piriformis

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https://www.readbyqxmd.com/read/28804634/muscle-mri-findings-in-a-one-year-old-girl-with-merosin-deficient-congenital-muscular-dystrophy-type-1a-due-to-lama2-mutation-a-case-report
#1
Yingyin Liang, Guidian Li, Songlin Chen, Rongxing He, Xiangxue Zhou, Yingming Chen, Xue Xu, Ronglan Zhu, Cheng Zhang
The objective of the present study was to characterize the muscle magnetic resonance imaging (MRI) features of a 1-year-old girl with merosin-deficient congenital muscular dystrophy type 1A (MDC1A). Beginning as an infant, this patient exhibited severe hypotonia and proximal weakness, as well as delays in developmental milestones. Her serum creatine kinase levels at 3 months, 8 months and 1 year were 2,959, 1,621 and 1,659 U/l, respectively. Brain MRI indicated symmetric, mild T1WI low, mild T2WI and FLAIR high radial patterns in the white matter of the Cornu posterius of the ventricular lateral...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28770350/surgical-outcomes-of-intramedullary-nailing-for-diaphyseal-atypical-femur-fractures-is-it-safe-to-modify-a-nail-entry-in-bowed-femur
#2
Ji Wan Kim, Hyunuk Kim, Chang-Wug Oh, Joon-Woo Kim, Oog-Jin Shon, Young-Soo Byun, Jung Jae Kim, Hyoung Keun Oh, Hiroaki Minehara, Kyu-Tae Hwang, Ki Chul Park
INTRODUCTION: The purpose of the study was to determine the surgical outcomes of intramedullary nailing in diaphyseal atypical femoral fractures (AFFs) and to evaluate the clinical outcomes of nail entry modification technique. MATERIALS AND METHODS: We retrospectively reviewed diaphyseal AFFs treated with IMN at nine institutions. In total, 82 patients were included. Surgical outcomes such as complication, union time, and femoral bowing were evaluated. We modified the nail entry of the straight nail from piriformis fossa to the tip of the greater trochanter in the bowed femur and compared the surgical outcomes between the original group and the modification group...
August 2, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28750995/effect-of-stretching-of-piriformis-and-iliopsoas-in-coccydynia
#3
P P Mohanty, Monalisa Pattnaik
Pain in the coccyx is referred as coccydynia. The pain aggravates in weight bearing i.e. sitting. Total 48 persons with coccydynia diagnosed clinically were recruited and randomly assigned into one of the 3 groups. Experimental group I were treated by stretching of piriformis and iliopsoas muscles, experimental group II were treated by stretching of piriformis and iliopsoas muscles and Maitland's rhythmic oscillatory thoracic mobilization over the hypomobile segments and the conventional group were treated by seat cushioning + Sitz bath + Phonophorosis...
July 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28748363/type-ii-sciatic-nerve-variant-an-unexpected-interventional-hazard
#4
Graeme Thompson, Ruan Visagie
A 12-year-old girl presented with a 1-week history of right hip pain. MRI revealed a lesion in the incompletely fused posterior triradiate cartilage of the right acetabulum with imaging characteristics of an osteoid osteoma. The surgeon requested guidewire placement under CT guidance for lesion drilling. The CT approach was planned to avoid the usual course of the sciatic nerve, and the lesion was successfully removed and confirmed at histology to be an osteoid osteoma. At a follow-up visit, MRI showed no recurrence but demonstrated an abnormal common peroneal nerve from the sciatic notch to the popliteal fossa with denervation oedema in the tibias anterior and peroneal musculature...
July 26, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28741033/refractory-sciatica-caused-by%C3%A2-gluteal-varicosities
#5
Zheng Zhang, Xuebing Zhang, Chen Yang, Xiaoyu Wen
We report a case of sciatica that fulfilled the diagnostic criteria for inferior gluteal vein varicosities according to patient history and on magnetic resonance imaging. Since conservative treatment was ineffective, excision-ligation of the varicose vein was performed as recommended in the previous literature. However, pain was only slightly relieved and then aggravated. Reoperation involving wide release and resection of the piriformis outlet was performed. Pain resolved immediately thereafter. We suggest that this case of sciatica resulted from both piriformis entrapment and vein varicosities...
July 24, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28709584/first-sacral-nerve-and-anterior-longitudinal-ligament-anatomy-clinical-applications-during-sacrocolpopexy
#6
Maria E Florian-Rodriguez, Jennifer J Hamner, Marlene M Corton
BACKGROUND: The recommended location of graft attachment during sacrocolpopexy is at or below the sacral promontory on the anterior surface of the first sacral vertebra. Graft fixation below the sacral promontory may potentially involve the first sacral nerve. OBJECTIVE: The objectives of this study were to examine the anatomy of the right first sacral nerve relative to the midpoint of the sacral promontory and to evaluate the thickness and ultrastructural composition of the anterior longitudinal ligament at the sacral promontory level...
July 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28697079/exchange-nailing-for-hypertrophic-femoral-nonunion
#7
Alejandro Marquez-Lara, T David Luo, Rebecca Senehi, Arun Aneja, Hoyt Randy Beard, Eben A Carroll
Exchange nailing has proven to be a reliable surgical technique for the management of aseptic femoral shaft nonunions. Similar to primary intramedullary nail fixation for femur fractures, exchange nailing for aseptic hypertrophic nonunions of the femur relies on successful navigation of the starting point and proper nail trajectory to minimize coronal and sagittal plane deformities. Compared with the supine position, the lateral decubitus position has the advantage of allowing gravity to displace the soft tissue around the piriformis start site to facilitate nail entry...
August 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28633454/long-term-efficacy-of-ultrasound-guided-injection-of-incobotulinumtoxina-in-piriformis-syndrome
#8
Manuel Rodríguez-Piñero, Victoria Vidal Vargas, Aguas Santas Jiménez Sarmiento
No abstract text is available yet for this article.
June 17, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28630740/the-effects-of-hip-abduction-on-sciatic-nerve-biomechanics-during-terminal-hip-flexion
#9
Hal David Martin, Anthony N Khoury, Ricardo Schroder, Juan Gomez-Hoyos, Samrat Yeramaneni, Manoj Reddy, Ian James Palmer
Terminal hip flexion contributes to increased strain in peripheral nerves at the level of the hip joint. The effects of hip abduction and femoral version on sciatic nerve biomechanics are not well understood. A decrease in sciatic nerve strain will be observed during terminal hip flexion and hip abduction, independent of femoral version. Six un-embalmed human cadavers were utilized. Three Differential Variable Reluctance Transducers (DVRTs) sensors were placed on the sciatic nerve while the leg was flexed to 70° with a combination of - 10°, 0°, 20° and 40° adduction/abduction...
July 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/28620309/inhibition-of-the-trpm2-and-trpv1-channels-through-hypericum-perforatum-in-sciatic-nerve-injury-induced-rats-demonstrates-their-key-role-in-apoptosis-and-mitochondrial-oxidative-stress-of-sciatic-nerve-and-dorsal-root-ganglion
#10
Fuat Uslusoy, Mustafa Nazıroğlu, Bilal Çiğ
Sciatic nerve injury (SNI) results in neuropathic pain, which is characterized by the excessive Ca(2+) entry, reactive oxygen species (ROS) and apoptosis processes although involvement of antioxidant Hypericum perforatum (HP) through TRPM2 and TRPV1 activation has not been clarified on the processes in SNI-induced rat, yet. We investigated the protective property of HP on the processes in the sciatic nerve and dorsal root ganglion neuron (DRGN) of SNI-induced rats. The rats were divided into five groups as control, sham, sham+HP, SNI, and SNI+HP...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28616638/piriformis-muscle-syndrome-with-assessment-of-sciatic-nerve-using-diffusion-tensor-imaging-and-tractography-a-case-report
#11
Keizo Wada, Tomohiro Goto, Tomoya Takasago, Daisuke Hamada, Koichi Sairyo
Piriformis muscle syndrome (PMS) is difficult to diagnose by objective evaluation of sciatic nerve injury. Here we report a case of PMS diagnosed by diffusion tensor imaging (DTI) and tractography of the sciatic nerve, which can assess and visualize the extent of nerve injury. The patient was a 53-year-old man with a 2-year history of continuous pain and numbness in the left leg. His symptoms worsened when sitting. Physical examination, including sensorimotor neurologic tests, the deep tendon reflex test, and the straight leg raise test, revealed no specific findings...
June 14, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28597806/sinonasal-organised-haematoma-clinical-features-and-successful-application-of-modified-transnasal-endoscopic-medial-maxillectomy
#12
M Suzuki, Y Nakamura, S Ozaki, M Yokota, S Murakami
OBJECTIVE: Although organised haematoma often induces bone thinning and destruction similar to malignant diseases, the aetiology of organised haematoma and the optimal treatment remain unclear. This paper presents the clinical features of individuals with organised haematoma, and describes cases in which a novel modified approach was successfully applied for resection of organised haematoma in the maxillary sinus. METHOD: Pre-operative examination data were evaluated retrospectively...
June 9, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28567214/surgical-treatment-of-piriformis-syndrome
#13
Suk Ku Han, Yong Sik Kim, Tae Hyeon Kim, Soo Hwan Kang
BACKGROUND: Piriformis syndrome (PS) is an uncommon disease characterized by symptoms resulting from compression/irritation of the sciatic nerve by the piriformis muscle. Uncertainty and controversy remain regarding the proper diagnosis and most effective form of treatment for PS. This study analyzes the diagnostic methods and efficacy of conservative and surgical treatments for PS. METHODS: From March 2006 to February 2013, we retrospectively reviewed 239 patients who were diagnosed with PS and screened them for eligibility according to our inclusion/exclusion criteria...
June 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28481811/trochanteric-entry-for-femoral-lengthening-nails-in-children-is-it-safe
#14
Ahmed I Hammouda, Julio J Jauregui, Martin G Gesheff, Shawn C Standard, John E Herzenberg
BACKGROUND: Antegrade intramedullary (IM) nailing for skeletally immature femur fractures can damage the capital femoral epiphysis blood supply, leading to avascular necrosis (AVN) of the femoral head. Reported AVN rates are 2% for piriformis entry and 1.4% for trochanteric entry. None of previous reports described IM lengthening nails for limb lengthening procedures. We have used self-lengthening telescopic nails with a proximal Herzog bend and standard trochanteric entry for femoral lengthening in children...
June 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28457759/modular-neck-vs-nonmodular-femoral-stems-in-total-hip-arthroplasty-clinical-outcome-metal-ion-levels-and-radiologic-findings
#15
Rasmus T Mikkelsen, Marianne Fløjstrup, Christian Lund, Per Kjærsgaard-Andersen, Thomas Skjødt, Claus Varnum
BACKGROUND: Modular neck femoral stem (MNFS) for total hip arthroplasty (THA) was introduced to optimize the outcome, but created concerns about pain, elevated blood metal ion levels, and adverse reaction to metal debris such as pseudotumors (PTs), related to corrosion between femoral neck and stem. We compared these outcomes in patients with MNFS or nonmodular femoral stem (NFS) THA. METHODS: Thirty-three patients with unilateral MNFS THA were compared with 30 patients with unilateral NFS THA...
April 7, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28453451/sensitivity-for-palpating-lumbopelvic-soft-tissues-and-bony-landmarks-and-its-associated-factors-a-single-blinded-diagnostic-accuracy-study
#16
A P A Ferreira, L C Póvoa, J F C Zanier, D C Machado, A S Ferreira
BACKGROUND: Evidence on the diagnostic performance of palpatory methods and possible confounding factors is scarce. OBJECTIVES: To examine the sensitivity of palpatory methods for location of lumbopelvic landmarks and to assess its association with personal characteristics. METHODS: Eighty-three participants (41 men, 55.6 (16.5) years, 25.9 (4.8) kg/m2 [mean (SD)]) were enrolled in this single-blinded study. Fourteen body and softy-tissue landmarks were sequentially palpated from the spinous process of L4 to the ischial tuberosity...
April 21, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28420848/myositis-ossificans-of-the-hip-due-to-pyogenic-arthritis-caused-by-campylobacter-fetus-subspecies-fetus
#17
Sho Nishiguchi, Ichiro Sekine, Shun Kuroda, Morihiko Sato, Izumi Kitagawa
A 61-year-old woman was admitted with severe hip pain causing immobility and high serum levels of inflammatory markers. The patient had a medical history of diabetes. She had been scheduled to undergo right hip replacement surgery for the treatment of osteoarthritis associated with gradually progressive pain. On admission, an enhanced abdominal computed tomography scan showed an abnormal increase in synovial fluid surrounding the right ilium, with piriformis muscle calcification. Subsequent blood and specimen cultures identified Campylobacter fetus subspecies fetus...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28416827/-comparison-of-the-effects-of-total-hip-arthroplasty-via-direct-anterior-approach-and-posterolateral-piriformis-sparing-approach
#18
J Xu, W D Zhuang, X W Li, G Y Yu, Y Lin, F Q Luo, Y H Xiao
OBJECTIVE: To compare the clinical effects of direct anterior approach (DAA) and posterolateral piriformis-sparing approach (Mis-PLA) for minimally invasive surgery of total hip arthroplasty. METHODS: The patients who had total hip arthroplasty from March 2015 to February 2016 were randomly divided into 2 groups: DAA group and Mis-PLA group. In the study, 43 patients (45 hips) were performed with total hip replacement via the direct anterior approach (DAA group)...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28409095/arthroscopic-piriformis-release-a-technique-for-sciatic-nerve-decompression
#19
Todd P Pierce, Casey M Pierce, Kimona Issa, Vincent K McInerney, Anthony Festa, Anthony J Scillia
Various techniques for piriformis muscle release have been published previously. However, it is imperative we continue to improve on existing techniques as well as develop new ones that may further optimize outcomes. Therefore, we aimed to describe an endoscopic technique for the release of the piriformis muscle in those with symptoms of sciatic nerve compression. Using the posterolateral portal, we are able to perform a complete release of the piriformis from the greater trochanter and the piriformis fossa with care to protect the external rotators and the sciatic nerve...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28402128/effects-of-skeletally-anchored-class-ii-elastics-a-pilot-study-and-new-approach-for-treating-class-ii-malocclusion
#20
Selin Ozbilek, Ahmet Yalcin Gungor, Salih Celik
OBJECTIVE: To evaluate the skeletal, dentoalveolar, and soft tissue effects of skeletally anchored Class II elastics and compare them with a matched control group treated by a monobloc appliance for the correction of skeletal Class II malocclusion due to mandibular retrusion. MATERIALS AND METHODS: Twelve patients (6 girls, 6 boys) were randomly divided into two groups. In the elastics group, six patients (12.9 ± 1.5 years of age; 3 boys, 3 girls) were treated with skeletally anchored Class II elastics...
July 2017: Angle Orthodontist
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