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#1
(no author information available yet)
Bsat S, Frei H, Beaulé PE The acetabular labrum: review of its functionBone Joint J;2016;98-B:730-735.
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28445464/burgess-shale-fossils-illustrate-the-origin-of-the-mandibulate-body-plan
#2
Cédric Aria, Jean-Bernard Caron
Retracing the evolutionary history of arthropods has been one of the greatest challenges in biology. During the past decade, phylogenetic analyses of morphological and molecular data have coalesced towards the conclusion that Mandibulata, the most diverse and abundant group of animals, is a distinct clade from Chelicerata, in that its members possess post-oral head appendages specialized for food processing, notably the mandible. The origin of the mandibulate body plan, however, which encompasses myriapods, crustaceans and hexapods, has remained poorly documented...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28432505/3d-double-echo-steady-state-sequence-assessment-of-hip-joint-cartilage-and-labrum-at-3-tesla-comparative-analysis-of-magnetic-resonance-imaging-and-intraoperative-data
#3
Christoph Schleich, Tobias Hesper, Harish S Hosalkar, Fanni Rettegi, Christoph Zilkens, Rüdiger Krauspe, Gerald Antoch, Bernd Bittersohl
OBJECTIVES: To assess the diagnostic accuracy of a high-resolution, three-dimensional (3D) double-echo steady-state (DESS) sequence with radial imaging at 3 Tesla (T) for evaluating cartilage and labral alterations in the hip. METHODS: Magnetic resonance imaging (MRI) data obtained at 3 T, including radially reformatted DESS images and intraoperative data of 45 patients (mean age 42 ± 13.7 years) who underwent hip arthroscopy, were compared. The acetabular cartilage and labrum of the upper hemisphere of the acetabulum and the central femoral head cartilage were evaluated...
April 21, 2017: European Radiology
https://www.readbyqxmd.com/read/28419756/posterior-ankle-labral-changes-at-mri-a-preliminary-study
#4
Nasir Khan, Navdeep Sahota, Michael L Shepel, Haron Obaid
INTRODUCTION: The transverse ligament in the ankle joint has been described as a labrum-like structure in a previous cadaveric study. The purpose of this study is to assess the spectrum of abnormal changes related to this structure on imaging/MRI, and correlate these findings with other ankle joint findings and patient symptoms. METHOD: A retrospective observational review of 172 ankle MRI scans was carried out independently by two fellowship trained musculoskeletal Radiologists...
April 17, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28412061/influence-of-the-labrum-on-version-and-diameter-of-the-glenoid-a-morphometric-study-using-magnetic-resonance-images
#5
Joyce Anthony, Ibin Varughese, Vaida Glatt, Kevin Tetsworth, Erik Hohmann
PURPOSE: To use magnetic resonance imaging to determine the influence of the labrum on both the osseous version and effective diameter of the glenoid. METHODS: This was a retrospective, cross-sectional study of patients with shoulder pain who underwent MRI between February 2014 and February 2015. The morphology of the glenoid labrum and glenoid was scanned with a 3-T magnetic resonance imaging scanner, and variables were measured by use of IntelliSpace PACS Enterprise...
April 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28412060/minimum-2-year-outcomes-of-arthroscopic-management-of-symptomatic-hip-labrum-tears-in-patients-with-global-acetabular-overcoverage
#6
Sivashankar Chandrasekaran, Nader Darwish, Mary R Close, Carlos Suarez-Ahedo, Parth Lodhia, Benjamin G Domb
PURPOSE: To report minimum 2-year patient-reported outcomes (PROs) after hip arthroscopy (HA) for symptomatic labral tears in patients with global acetabular overcoverage. METHODS: This study was a retrospective case series of patients who underwent HA from April 2008 to April 2013. The inclusion criteria were patients with global acetabular overcoverage, defined as a lateral center-edge angle greater than 40°, and with coxa profunda, defined radiologically by the ilioischial line lateral to the acetabular floor...
April 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28411338/shoulder-bankart-lesion-with-posterior-instability-a-case-report-of-ultrasound-detection
#7
Ryuzo Arai, Taisuke Ito, Shuzo Okudaira, Shuichi Matsuda
Minor instability of the shoulder has recently drawn attention as a cause of shoulder pain in athletes. However, it is difficult to correctly diagnose the direction in which the humeral head translates and subluxates, and to clarify the pathology of the instability. We present a case of a 20-year-old male with an unstable shoulder who could not raise his left arm due to pain. Since 6 years prior to the onset of pain, the patient could asymptomatically perform voluntary subluxation, but it was slight and the direction of the subluxation could not be confirmed...
April 14, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28408155/arthroscopic-capsular-plication-and-labral-seal-restoration-in-borderline-hip-dysplasia-2-year-clinical-outcomes-in-55-cases
#8
Sivashankar Chandrasekaran, Nader Darwish, Timothy J Martin, Carlos Suarez-Ahedo, Parth Lodhia, Benjamin G Domb
PURPOSE: To report clinical outcomes in patients with borderline dysplasia undergoing an arthroscopic technique of labral seal restoration with minimal acetabular rim resection and capsular plication. METHODS: Patients younger than 40 years with a lateral center-edge angle of 18° greater and 25° or less and 2-year follow-up after undergoing an arthroscopic technique of labral seal restoration with minimal rim resection (≤2 mm) and capsular plication (3-5 sutures placed in an oblique orientation to create an imbrication and inferior shift) were included...
April 10, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28401279/current-concepts-in-the-diagnosis-and-management-of-extra-articular-hip-impingement-syndromes
#9
REVIEW
Naoki Nakano, Grace Yip, Vikas Khanduja
PURPOSE: Extra-articular hip impingement syndromes encompass a group of conditions that have previously been an unrecognised source of pain in the hip and on occasion been associated with intra-articular hip impingement as well. As arthroscopic techniques for the hip continue to evolve, the importance of these conditions has been recognised recently and now form an important part of the differential of an individual presenting with hip pain. The aim of this article, therefore, is to provide the reader with an evidence-based and comprehensive update of these syndromes...
April 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28400885/the-purse-string-technique-for-shoulder-stabilization-description-of-the-technique-long-term-results-and-literature-review
#10
REVIEW
Georgios Arealis, Joana Bento Rodrigues, Natalie Hope, Ofer Levy
BACKGROUND: Over the last 2 decades arthroscopic stabilization and Bankart repair has gained popularity due to the advances in materials and surgical techniques. Results of arthroscopic stabilization have been similar to open without the risks of it. The number of anchors used has been suggested to be very important in "spot-weld" arthroscopic stabilization however the "purse-string" technique (PST) can achieve similar results using only one anchor. We describe technique and long term results from using the PST and search the literature for other papers regarding PST...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28400880/arthroscopic-findings-in-anterior-shoulder-instability
#11
REVIEW
Michael Hantes, Vasilios Raoulis
BACKGROUND: In the last years, basic research and arthroscopic surgery, have improved our understanding of shoulder anatomy and pathology. It is a fact that arthroscopic treatment of shoulder instability has evolved considerably over the past decades. The aim of this paper is to present the variety of pathologies that should be identified and treated during shoulder arthroscopy when dealing with anterior shoulder instability cases. METHODS: A review of the current literature regarding arthroscopic shoulder anatomy, anatomic variants, and arthroscopic findings in anterior shoulder instability, is presented...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28397010/corona-mortis-anastomosis-a-three-dimensional-computerized-tomographic-angiographic-study
#12
Ely L Steinberg, Tomer Ben-Tov, Galit Aviram, Yohai Steinberg, Ehud Rath, Galia Rosen
PURPOSE: We evaluated the corona mortis (CM) anatomy by means of three-dimensional computerized tomography angiographic (CTA). METHODS: Patient demographic, anastomosis incidence, artery diameter, artery distance from the symphysis pubis, and pelvic size (distance between both acetabular upper labrum) parameters were assessed. The 100 patients included 66 males and 34 females (average age of 67.8 years). RESULTS: There were 66 (33%) arterial anastomoses in the 200 evaluated arteries, 30 in the right side and 36 in the left side, 36 unilaterally and 15 bilaterally...
April 10, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28370312/changes-in-chondrolabral-mechanics-coverage-and-congruency-following-peri-acetabular-osteotomy-for-treatment-of-acetabular-retroversion-a-patient-specific-finite-element-study
#13
Spencer J Knight, Christine L Abraham, Christopher L Peters, Jeffrey A Weiss, Andrew E Anderson
Using a validated finite element (FE) protocol, we quantified cartilage and labrum mechanics, congruency, and femoral coverage in five male patients before and after they were treated for acetabular retroversion with peri-acetabular osteotomy (PAO). Three-dimensional models of bone, cartilage, and labrum were generated from computed tomography (CT) arthrography images, acquired before and after PAO. Walking, stair-ascent, stair-descent, and rising from a chair were simulated. Cartilage and labrum contact stress, contact area, and femoral coverage were calculated overall and regionally...
April 1, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28359839/a-novel-flexible-drill-device-enabling-arthroscopic-transosseous-repairof-bankart-lesions
#14
Ye-Yeon Won, Jin Soo Park, Soo Joong Choi, Sung In Hong
We have developed a flexible drill device that makes arthroscopic transosseous repair possible, and report preliminary results.Twelvepatientswith post-traumatic anterior inferior glenohumeral instability were selected. SURGICAL TECHNIQUE: The flexible drill device is inserted into the shoulder joint through the posterior portal and the guide pipe unit is placed 5mm posterior to the margin of the anterior glenoid rim. The flexible drill is driven through the glenoid with the power drill, creating a hole in the glenoid...
March 27, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28359696/partial-thickness-tears-involving-the-rotator-cable-lead-to-abnormal-glenohumeral-kinematics
#15
Gregory J Pinkowsky, Neal S ElAttrache, Alexander B Peterson, Masaki Akeda, Michelle H McGarry, Thay Q Lee
HYPOTHESIS: The objective of this study was to determine the biomechanical function of the rotator cable when a partial-thickness (>50%) tear is present. We compared intact specimens with partial tears of the anterior cable followed by partial anterior and posterior tears in regard to glenohumeral kinematics and translation. The hypothesis was that partial-thickness tears will lead to abnormal glenohumeral biomechanics, including glenohumeral translation and path of glenohumeral articulation...
March 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28315143/unclassified-mr-arthrography-pattern-evaluation-in-patients-with-episodes-of-recurrent-antero-inferior-shoulder-dislocation
#16
Luca Saba, Massimo De Filippo
PURPOSE: To evaluate prospectively the incidence of unclassifiable MR arthrography patterns of glenoid anterior-inferior labrum lesions, in patients with at least two episodes of recurrent antero-inferior shoulder dislocation. MATERIALS AND METHODS: The MR shoulder Arthrography images of 36 patients, with at least two episodes of recurrent antero-inferior dislocation, were prospectively evaluated, during a period between November 2015 and Mai 2016. All patients were contacted after 6 months of the MR arthrography to evaluate their course of treatment...
March 17, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28314887/mechanical-strains-passing-through-the-acetabular-labrum-modify-its-shape-during-hip-motion-an-anatomical-study
#17
Matthieu Ollivier, Thomas Le Corroller, Sebastien Parratte, Patrick Chabrand, Jean-Noël Argenson, Olivier Gagey
PURPOSE: The function of the hip labrum during hip motion remains poorly known. Our hypothesis was that acetabular labrum will deform and change its shape during adduction to abduction movement consecutively to variation of strains passing from the acetabulum to the femoral head. An ex vivo anatomical study was conducted to analyse the morphological parameters variation of the mid-portion of the labrum (length, thickness, shape, deformation) as well as femoro-labral strains during hip adduction to abduction movement...
March 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28298065/clinical-assessment-of-the-dynamic-labral-shear-test-for-superior-labrum-anterior-and-posterior-lesions
#18
Sonal Sodha, Uma Srikumaran, Kyubo Choi, Amrut U Borade, Edward G McFarland
BACKGROUND: Diagnosing superior labrum anterior and posterior (SLAP) lesions through physical examination remains challenging. The dynamic labral shear test (DLST) has been shown to have likelihood ratios (LRs) of 31.6 and 1.1 for diagnosing SLAP lesions. PURPOSE: To determine the clinical utility of the DLST for diagnosing SLAP lesions. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2. METHODS: This prospective, consecutive case series included 774 patients who underwent diagnostic arthroscopy and a preoperative DLST between 2007 and 2013...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28264280/notes-on-species-of-the-genus-i-chlaenius-i-bonelli-1810-coleoptera-carabidae-chlaeniini-from-four-agro-climatic-zones-of-rajasthan-with-description-of-two-new-species
#19
N Yaiphabi Chanu, R Swaminathan
Fourteen species of the genus Chlaenius from the semi-arid and sub-humid plain zones of Rajasthan (India) have been revised in this paper, including the description of two new species: Chlaenius (Lissauchenius) udaipurensis sp. nov. and Chlaenius (Chlaeniellus) pseudotristis sp. nov. A key to these species has been given with suitable line diagrams and photographs to illustrate key taxonomic characters including labrum, mentum, maxillary and labial palpi, pronotum, elytra and aedeagus.
March 1, 2017: Zootaxa
https://www.readbyqxmd.com/read/28249968/defining-modes-of-failure-after-joint-preserving-surgery-of-the-hip
#20
P E Beaulé, H Bleeker, A Singh, J Dobransky
AIMS: Joint-preserving surgery of the hip (JPSH) has evolved considerably and now includes a number of procedures, including arthroscopy, surgical dislocation, and redirectional osteotomies of the femur and acetabulum. There are a number of different factors which lead to failure of JPSH. Consequently, it is of interest to assess the various modes of failure in order to continue to identify best practice and the indications for these procedures. PATIENTS AND METHODS: Using a retrospective observational study design, we reviewed 1013 patients who had undergone JPSH by a single surgeon between 2005 and 2015...
March 2017: Bone & Joint Journal
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