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Obturator externus

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https://www.readbyqxmd.com/read/27898454/transvaginal-pelvic-floor-muscle-injection-technique-a-cadaver-study
#1
Priyanka Gupta, Michael Ehlert, Larry T Sirls, Kenneth Peters
INTRODUCTION: Women with pelvic floor dysfunction can have tender areas on vaginal examination, which can be treated with trigger-point injections. There are no publications to evaluate the accuracy of pelvic floor muscle injections. METHODS: Trigger-point injections were performed on 2 fresh cadaveric pelvises using a curved nasal cannula guide and 7-in spinal needle. This was performed using our standard template of 2 sets of injections at the 1-, 3-, and 5-o'clock positions distally and proximally...
November 28, 2016: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/27116689/evaluation-of-the-muscle-morphology-of-the-obturator-externus-and-piriformis-as-the-predictors-of-avascular-necrosis-of-the-femoral-head-in-acetabular-fractures
#2
Lalit Maini, Santosh Kumar, Sahil Batra, Rajat Gupta, Sumit Arora
Avascular necrosis (AVN) of femoral head is a recognised complication of fracture dislocation of the hip joint but is not studied frequently in relation to acetabulum fractures. The aim was to establish the relationship between obturator externus and piriformis muscle morphology in acetabulum fractures and potenital development of AVN of the femoral head. Twenty-five fractures were included in this prospective study and were subjected to radiological assessment and computed tomography of the pelvis. Magnetic resonance imaging (MRI) of the hip was performed to assess the morphology of obturator externus and piriformis, and findings were compared intraoperatively (in 15 cases)...
August 2016: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/27073678/bilateral-recurrent-external-obturator-muscle-hematoma-an-unusual-cause-of-pelvic-pain-in-hemophilia
#3
Taner Arpaci, Ilgen Sasmaz, Tugana Akbas, Alper Eken, Anil Ozgur, Bulent Antmen
Following joint hemorrhages, intramuscular hemorrhages are the second most prevalent bleeding pattern in hemophiliac patients. Hematomas of the iliopsoas muscle are a well-known complication of hemophilia; however, obturator muscle hematomas are rare. We herein report a case of spontaneous bleeding of the bilateral external obturator muscles, which occured three times within a period of 9 months in a hemophilia patient with factor VIII inhibitors. To the best of our knowledge, this is the first published case of an obturator externus muscle hematoma in hemophilia...
April 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/26984915/a-vessel-preserving-surgical-hip-dislocation-through-a-modified-posterior-approach-assessment-of-femoral-head-vascularity-using-gadolinium-enhanced-mri
#4
Peter K Sculco, Lionel E Lazaro, Edwin P Su, Craig E Klinger, Jonathan P Dyke, David L Helfet, Dean G Lorich
BACKGROUND: Surgical hip dislocation allows circumferential access to the femoral head and acetabulum and is utilized in the treatment of intra-articular hip disorders. Surgical hip dislocation is currently performed with a trochanteric osteotomy that reliably preserves the femoral head arterial supply; however, trochanteric nonunion or painful hardware requiring removal may occur. In a cadaveric model, using gadolinium-enhanced magnetic resonance imaging (MRI) and gross dissection, we evaluated whether modifications to the posterior approach preserve the femoral head arterial supply after a posterior surgical hip dislocation...
March 16, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/26620274/a-new-ultrasound-guided-pubic-approach-for-proximal-obturator-nerve-block-clinical-study-and-cadaver-evaluation
#5
T Yoshida, T Onishi, K Furutani, H Baba
We evaluated an alternative technique for ultrasound-guided proximal level obturator nerve block that might facilitate needle visualisation using in-plane ultrasound guidance. Twenty patients undergoing transurethral bladder tumour resection requiring an obturator nerve block were enrolled into a prospective observational study. With the patient in the lithotomy position, the transducer was placed on the medial thigh along the extended line of the inguinal crease, and aimed cephalad to view a thick fascia between the pectineus and obturator externus muscles that contains the obturator nerve...
March 2016: Anaesthesia
https://www.readbyqxmd.com/read/26535335/surgically-relevant-bony-and-soft-tissue-anatomy-of-the-proximal-femur
#6
Marc J Philippon, Max P Michalski, Kevin J Campbell, Mary T Goldsmith, Brian M Devitt, Coen A Wijdicks, Robert F LaPrade
BACKGROUND: Hip endoscopy facilitates the treatment of extra-articular disorders of the proximal femur. Unfortunately, current knowledge of proximal femur anatomy is limited to qualitative descriptions and lacks surgically relevant landmarks. PURPOSE: To provide a quantitative and qualitative analysis of proximal femur anatomy in reference to surgically relevant bony landmarks. STUDY DESIGN: Descriptive laboratory study. METHODS: Fourteen cadaveric hemipelvises were dissected...
June 2014: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/26448844/obturator-internus-and-obturator-externus-strain-in-a-high-school-quarterback
#7
Morteza Khodaee, Daniel Jones, Jack Spittler
INTRODUCTION: Buttock pain is a relatively common complaint among adolescent athletes and can have a very broad differential diagnosis. CASE PRESENTATION: The authors present a previously unreported case of acute obturator internus and obturator externus strain in an adolescent male American football player. The diagnosis was made by MRI. The patient was treated with relative rest, physical therapy, and gradual return to physical activities as tolerated. CONCLUSIONS: Despite rarity of the hip external rotator muscles strains, it should be considered in the differential diagnosis of athletes with proximal posterior thigh and buttock pain...
September 2015: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/25952918/the-anatomy-and-function-of-the-obturator-externus
#8
Ravindra Gudena, Abdullah Alzahrani, Pamela Railton, James Powell, Reinhold Ganz
There is limited knowledge regarding the anatomic relationships and functional anatomy of the Obturator Externus muscle (OE). It is described as a muscle which originates from the external bony margin of the obturator foramen with a cylindrical tendon which passes like a sling under the femoral neck and inserts in the trochanteric fossa. The primary aim of this study is to describe the OE morphology and its anatomic relationship to the acetabulum. A secondary aim is to postulate its action. Eighteen fresh human cadaveric hips were dissected to investigate the anatomy of the OE...
September 2015: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/25697090/primary-functions-of-the-quadratus-femoris-and-obturator-externus-muscles-indicated-from-lengths-and-moment-arms-measured-in-mobilized-cadavers
#9
Kjartan Vaarbakken, Harald Steen, Gunnar Samuelsen, Hans A Dahl, Trygve B Leergaard, Britt Stuge
BACKGROUND: The small muscles of the pelvis and hip are often implicated in painful conditions. Although the quadratus femoris and obturator externus are usually described as external rotators of the hip, little is known about how they change their lengths and moment arms during human movement. Therefore, more precise measurements defining the positions and directions for their maximal strength and stretch are needed to better describe their functions and guide the clinical approach to pain...
March 2015: Clinical Biomechanics
https://www.readbyqxmd.com/read/25539249/metal-artifact-reduction-with-mavric-sl-at-3-t-mri-in-patients-with-hip-arthroplasty
#10
COMPARATIVE STUDY
Soo-Jung Choi, Kevin M Koch, Brian A Hargreaves, Kathryn J Stevens, Garry E Gold
OBJECTIVE: The objective of our study was to compare the multiacquisition variable-resonance image combination selective (MAVRIC SL) sequence with the 2D fast spin-echo (FSE) sequence for metal artifact reduction on 3-T MRI in patients with hip arthroplasty (HA). MATERIALS AND METHODS: Matched 2D FSE and MAVRIC SL images of 21 hips (19 patients with HA) were included in the study group. Paired image sets, composed of 13 coronal and 12 axial slices (total, 25 image sets), of the 21 hips were evaluated...
January 2015: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/25440137/fatty-degeneration-of-gluteus-minimus-muscle-as-a-predictor-of-falls
#11
Yoshiro Kiyoshige, Emi Watanabe
The cause of falls is multifactorial, however, hip fractures in elderly would be prevented if accidental falls are predictable. We assessed magnetic resonance images of 38 patients with groin pain after taking a fall whose fracture could not be detected by plain X-rays, and 45 patients with no episode of falls. Their ages were over 65 years. Fatty degeneration of muscles, gluteus maximus, gluteus medius, gluteus minimus, obturator externus, adductor longus, rectus femoris and iliopsoas muscles, were evaluated by Goutallier's staging...
January 2015: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/25347752/obturator-internus-pyomyositis-in-a-child-a-case-report
#12
Xl Chong, M Ashik, M Arjandas
UNLABELLED: Obturator internus pyomyositis is a rare disease that is more commonly found in tropical countries. Due to its infrequent occurrence, it is a differential of hip pain that has not been sufficiently considered, which often results in delayed diagnosis. We present a case report of a 4 year old boy with pyomyositis of obturator internus as well as externus. He was treated successfully with intravenous antibiotics. A comparison is made with other case reviews to identify symptoms and signs that could help in diagnosing the condition early and accurately so as to initiate intravenous antibiotics, the mainstay treatment in a timely fashion, eventually avoiding surgical drainage of the sequelae when it becomes an abscess...
March 2014: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/25186506/obturator-externus-pyomyositis
#13
Timothy Slade, Robert Hawkes, Guy Atherton, Nicholas Sargant
Pyomyositis of the obturator externus muscle is a rare cause of limp and hip pain in children. The exact etiology of the condition remains poorly understood, although a mechanism of transient bacteremia in association with increased muscle susceptibility has been proposed. This case describes the course of a rather than 1 child from presentation to diagnosis and demonstrates the requirement for magnetic resonance imaging in establishing a diagnosis.
September 2014: Pediatric Emergency Care
https://www.readbyqxmd.com/read/25064755/new-findings-in-hip-capsular-anatomy-dimensions-of-capsular-thickness-and-pericapsular-contributions
#14
Brian L Walters, John H Cooper, José A Rodriguez
PURPOSE: The purpose of this investigation was to provide a detailed description of the anatomy of the hip capsule and pericapsular structures. METHODS: Dissections were performed on 11 nonpaired, fresh-frozen cadaveric hips by 2 independent observers: 1 fellowship-trained orthopaedic total joint surgeon and 1 chief orthopaedic surgery resident. Documentation of capsular thickness, origins, insertions, and attachments to pericapsular structures including the abductors, rectus femoris, piriformis, short external rotators, and iliocapsularis muscles was performed...
October 2014: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/24829114/the-association-between-hip-muscle-cross-sectional-area-muscle-strength-and-bone-mineral-density
#15
Harbeer Ahedi, Dawn Aitken, David Scott, Leigh Blizzard, Flavia Cicuttini, Graeme Jones
Studies examining the association between muscle size, muscle strength, and bone mineral density (BMD) are limited. Thus, this study aimed to describe the association between hip muscles cross-sectional area (CSA), muscle strength, and BMD of the hip and spine. A total of 321 subjects from the Tasmanian Older Adult Cohort study with a right hip MRI scan conducted between 2004 and 2006 were included. Hip muscles were measured on MR images by OsiriX (Geneva) software measuring maximum muscle CSA (cm(2)) of gluteus maximus, obturator externus, gemelli, quadratus femoris, piriformis, pectineus, sartorius, and iliopsoas...
July 2014: Calcified Tissue International
https://www.readbyqxmd.com/read/24793569/an-anatomic-study-of-the-impressions-on-the-greater-trochanter-bony-geometry-indicates-the-alignment-of-the-short-external-rotator-muscles
#16
Tatsuya Tamaki, Akimoto Nimura, Kazuhiro Oinuma, Hideaki Shiratsuchi, Satoshi Iida, Keiichi Akita
In this study, 44 hip regions from 25 embalmed cadavers were dissected to identify the bony landmarks on the greater trochanter, which indicate the individual short external rotator muscle insertions. Micro-computed tomography (micro-CT) images were obtained to identify the bony impressions on the greater trochanter. Then, the soft tissues were removed and their insertions were identified to assess correlation with micro-CT images. Bony landmarks indicating the insertions and the running course of the piriformis muscle, the obturator internus muscle, and the obturator externus muscle were identified on the greater trochanter in all specimens...
December 2014: Journal of Arthroplasty
https://www.readbyqxmd.com/read/24783092/piriformis-fossa-an-anatomical-and-orthopedics-consideration
#17
O P Lakhwani, P S Mittal, D C Naik
INTRODUCTION: Piriformis fossa is an important anatomical landmark having significant clinical value in orthopedic surgery; but its location and anatomical relationship with surrounding structures are not clearly defined. Hence it is necessary to clearly describe it in respect to anatomical and orthopedic aspect. MATERIALS AND METHODS: Fifty Cadaveric dry femoral bones and Dissection of the four hip specimens were used to study the Piriformis fossa in respect to location and its relationship with surrounding structures...
March 2014: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/24308439/clinical-effectiveness-of-the-obturator-externus-muscle-injection-in-chronic-pelvic-pain-patients
#18
Shin Hyung Kim, Do Hyeong Kim, Duck Mi Yoon, Kyung Bong Yoon
BACKGROUND: Because of its anatomical location and function, the obturator externus (OE) muscle can be a source of pain; however, this muscle is understudied as a possible target for therapeutic intervention in pain practice. In this retrospective observational study, we evaluated the clinical effectiveness of the OE muscle injection with a local anesthetic in chronic pelvic pain patients with suspected OE muscle problems. METHODS: Twenty-three patients with localized tenderness on the inferolateral side of the pubic tubercle accompanied by pain in the groin, anteromedial thigh, or hip were studied...
January 2015: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/24276231/medial-approach-for-drainage-of-the-obturator-musculature-in-children
#19
Travis J Menge, Heather A Cole, Megan E Mignemi, William C Corn, Jeffrey E Martus, Steven A Lovejoy, Christopher M Stutz, Gregory A Mencio, Jonathan G Schoenecker
BACKGROUND: In a recent study designed to determine the anatomic location of infection in children presenting with acute hip pain, fever, and elevated inflammatory markers, we demonstrated the incidence of infection of the musculature surrounding the hip to be greater than twice that of septic arthritis. Importantly, the obturator musculature was infected in >60% of cases. Situated deep in the pelvis, surrounding the obturator foramen, debridement of these muscles and placement of a drain traditionally requires an extensive ilioinguinal or Pfannenstiel approach, placing significant risk to the surrounding neurovascular structures...
April 2014: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/23826443/primary-obturator-internus-and-obturator-externus-pyomyositis
#20
Khalid Khoshhal, Hamdy M Abdelmotaal, Rayan Alarabi
BACKGROUND: Pyomyositis is a rare condition in immune competent patients and is usually seen in tropical countries. Pyomyositis of obturator muscles in particular is an extremely rare condition, which causes hip pain and mimics septic arthritis. CASE REPORT: This is a case report of a 9-year-old boy without an underlying disease or a compromised immune system, who presented with knee pain that progressed to hip pain and inability to bear weight. He was diagnosed initially with septic arthritis of the hip and underwent unnecessary hip exploration surgery...
2013: American Journal of Case Reports
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