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https://www.readbyqxmd.com/read/29786622/quantitative-analysis-of-proximal-and-distal-kinetic-chain-musculature-during-dynamic-exercises
#1
Gretchen D Oliver, Jessica K Washington, Jeff W Barfield, Sarah S Gascon, Gabrielle Gilmer
Oliver, GD, Washington, JK, Barfield, JW, Gascon, SS, and Gilmer, G. Quantitative analysis of proximal and distal kinetic chain musculature during dynamic exercises. J Strength Cond Res 32(6): 1545-1553, 2018-Proximal to distal sequencing for the dynamic movement of throwing is dependent on the movement and stability of the lumbopelvic-hip complex (LPHC) and scapula. Although the need for proximal stability for distal mobility has been vastly documented, pre-throwing programs tend to focus on the traditional rotator cuff activation exercises before long toss...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29785582/altered-cerebro-cerebellum-resting-state-functional-connectivity-in-hiv-infected-male-patients
#2
Huijuan Wang, Ruili Li, Yawen Zhou, Yanming Wang, Jin Cui, Benedictor Alexander Nguchu, Bensheng Qiu, Xiaoxiao Wang, Hongjun Li
In addition to the role of planning and executing movement, the cerebellum greatly contributes to cognitive process. Numerous studies have reported structural and functional abnormalities in the cerebellum for HIV-infected patients, but little is known about the altered functional connectivity of particular cerebellar subregions and the cerebrum. Therefore, this study aimed to explore the resting-state functional connectivity (rsFC) changes of the cerebellum and further analyze the relationship between the rsFC changes and the neuropsychological evaluation...
May 21, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29783889/the-external-obturator-footprint-as-a-landmark-in-total-hip-arthroplasty-through-a-direct-anterior-approach-a-ct-based-analysis
#3
Hannes A Rüdiger, Benjamin Fritz, Franco M Impellizzeri, Michael Leunig, Christian W Pfirrmann, Reto Sutter
BACKGROUND: Anatomical landmarks for templating of total hip arthroplasty (THA) that are visible both during surgery and on radiographs are rare. If surgery is performed through a direct anterior approach the external obturator tendon (EO) is consistently visible. To use this point as a reference the exact position and dimensions of the footprint need to be known. AIM: To determine the location and dimension of the EO footprint on pelvic radiographs by correlating the EO anatomy in CT scans with conventional radiographs...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29781363/karl-ludloff-1864-1945-an-inventive-orthopedic-surgeon-his-work-and-his-surgical-technique-for-the-correction-of-hallux-valgus
#4
Konstantinos Markatos, Georgios Karaoglanis, Christos Damaskos, Nikolaos Garmpis, Gerasimos Tsourouflis, Konstantinos Laios, Gregory Tsoucalas
The purpose of this article is to summarize the work and pioneering achievements in the field of orthopedic surgery of the German orthopedic surgeon Karl Ludloff. Ludloff had an impact in the diagnostics, physical examination, orthopedic imaging, and orthopedic surgical technique of his era. He was a pioneer in the surgical treatment of dysplastic hip, anterior cruciate ligament reconstruction, and hallux valgus. His surgical technique for the correction of hallux valgus, initially stabilized with plaster of Paris, remained unpopular among other orthopedic surgeons for decades...
May 1, 2018: Surgical Innovation
https://www.readbyqxmd.com/read/29781289/a-randomised-trial-comparing-spatio-temporal-gait-parameters-after-total-hip-arthroplasty-between-the-direct-anterior-and-direct-lateral-surgical-approaches
#5
Bryn O Zomar, Dianne Bryant, Susan Hunter, James L Howard, Edward M Vasarhelyi, Brent A Lanting
INTRODUCTION: Total hip arthroplasty (THA) is a successful procedure for relieving symptoms of severe osteoarthritis. Surgical approach is a key factor in early recovery and although controversial, little has been written about the direct anterior (DA) approach using objective early measures. METHODS: 78 participants were prospectively enrolled to undergo a THA through either a DA or direct lateral (DL) surgical approach. Outcome measures were collected preoperatively and at discharge from the hospital, and 2-, 6- and 12-weeks...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29777918/sex-differences-in-the-spatial-distribution-of-bone-in-relation-to-incident-hip-fracture-findings-from-the-ages-reykjavik-study
#6
Elisa A Marques, Julio Carballido-Gamio, Vilmundur Gudnason, Gunnar Sigurdsson, Sigurdur Sigurdsson, Thor Aspelund, Kristin Siggeirsdottir, Lenore Launer, Gudny Eiriksdottir, Thomas Lang, Tamara B Harris
In this case-cohort study, we used data-driven computational anatomy approaches to assess within and between sex spatial differences in proximal femoral bone characteristics in relation to incident hip fracture. One hundred male and 234 female incident hip fracture cases, and 1047 randomly selected noncase subcohort participants (562 female) were chosen from the population-based AGES-Reykjavik study (mean age of 77 years). The baseline -i.e. before hip fracture- hip quantitative computed tomography scans of these subjects were analyzed using voxel-based morphometry, tensor-based morphometry, and surface-based statistical parametric mapping to assess the spatial distribution of volumetric bone mineral density (vBMD), internal structure, and cortical bone properties (thickness, vBMD and trabecular vBMD adjacent to the endosteal surface) of the proximal femur, respectively, in relation to incident hip fracture...
May 16, 2018: Bone
https://www.readbyqxmd.com/read/29774222/asymmetrical-traumatic-bilateral-hip-dislocations-with-hemodynamic-instability-and-an-unstable-pelvic-ring-case-report-and-review-of-literature
#7
Kai Huang, Grey Giddins, Jian-Fang Zhang, Jian-Wei Lu, Jun-Ming Wan, Peng-Li Zhang, Shao-Yu Zhu
Simultaneous anterior and posterior traumatic dislocations of both hips are very rare. Only 33 cases have been previously reported in the English language literature. Although they were all due to high-energy injuries, they were hemodynamically stable and had a stable pelvic ring. We report a unique case of asymmetrical hip dislocations with an unstable pelvic ring and hemodynamic instability. A 40-year-old man was injured in a high-energy motor vehicle accident. He was hemodynamically unstable when he presented in the emergency department...
May 16, 2018: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29772953/anterior-center-edge-angle-on-sagittal-ct-a-comparison-of-normal-hips-to-dysplastic-hips
#8
Shafagh Monazzam, Karly Ann Williams, Trevor J Shelton, Arash Calafi, Brian M Haus
PURPOSE: The anterior center-edge angle (ACEA) describes anterior acetabular coverage on false profile radiographs. Variability associated with pelvic tilt, radiographic projection, and identifying the true anterior edge, causes discrepancies in measuring an accurate ACEA. Computed tomography (CT) has the potential of improving the accuracy of ACEA. However, because the ACEA on sagittal CT has been shown to not be equivalent to ACEA on false profile radiographs, the normal range of ACEA on CT currently remains unknown and cannot reliably be used to determine over/under coverage...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29772949/lack-of-consensus-on-optimal-acetabular-cup-orientation-because-of-variation-in-assessment-methods-in-total-hip-arthroplasty-a-systematic-review
#9
Thom E Snijders, Koen Willemsen, Steven M van Gaalen, Rene M Castelein, Harrie Weinans, Arthur de Gast
INTRODUCTION: Dislocation is one of the main reasons for revision of total hip arthroplasty but dislocation rates have not changed in the past decades, compromising patients' well-being. Acetabular cup orientation plays a key role in implant stability and has been widely studied. This article investigates whether there is a consensus on optimal cup orientation, which is necessary when using a navigation system. METHODS: A systematic search of the literature in the PubMed, Embase and Cochrane databases was performed (March 2017) to identify articles that investigated the direct relationship between cup orientation and dislocation, including a thorough evaluation of postoperative cup orientation assessment methods...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29772411/regulation-of-hip-joint-kinetics-for-increasing-angular-momentum-during-the-initiation-of-a-pirouette-en-dehors-in-classical-ballet
#10
Akiko Imura, Yoichi Iino
This study examined how dancers regulate the hip joint kinetics to coordinate the upper and lower body angular momenta with the increased rotation of pirouette en dehors (pirouette) during the preparation. During the preparation of the pirouette, the upper body rotates greatly about the vertical axis; however, the lower extremity remains relatively stationary. Therefore, there must be specific control at the hip to coordinate the upper and lower body angular momenta in turns of increased rotation. Kinematics and kinetics of single to quadruple pirouettes performed by eight ballet dancers were analysed using a motion capture system and force plates...
May 12, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29768929/current-concepts-in-revision-hip-arthroscopy
#11
Renato Locks, Ioanna Bolia, Hajime Utsunomiya, Karen Briggs, Marc J Philippon
Hip arthroscopy is an evolving procedure and its indications have expanded. The number of patients undergoing this procedure has increased significantly as well as the number of surgeons being trained. This has resulted in a notable increase in post-operative complication rates creating the need to develop advanced hip arthroscopic techniques. Revision hip arthroscopy is often complex and many factors should be considered to achieve a satisfactory clinical outcome. Careful pre-operative planning and agreement of expectations between the physician and patient regarding the procedure are important...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29762111/direct-anterior-approach-has-lower-deep-infection-frequency-than-less-invasive-direct-lateral-approach-in-primary-total-hip-arthroplasty
#12
Sean A Sutphen, Keith R Berend, Michael J Morris, Adolph V Lombardi
Debate continues over the direct anterior (DA) approach. The purpose of this study is to compare the frequency of deep infection between a DA approach and a less invasive direct lateral (LIDL) approach in a large consecutive series of primary total hip arthroplasty (THA). The authors identified 5702 primary THAs performed between 2007 and 2014. DA approach was used in 3540 hips and LIDL in 2162. Patient records were reviewed. Statistical analysis of reoperation, infection- or wound-related complication, and deep infection was performed...
2018: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/29758582/-relevance-of-mri-after-closed-reduction-of-traumatic-hip-dislocation-in-children
#13
Christoph Mauritz Strüwind, Christian von Rüden, Andreas Thannheimer, Volker Bühren, Dorien Schneidmueller
BACKGROUND: Traumatic hip dislocation in children and adolescents is a rare entity that typically results from high-energy trauma. After closed joint reduction, further treatment depends on the specific pattern of the lesion as identified using cross sectional imaging. The aim of this retrospective analysis was to evaluate relevant side effects after traumatic hip dislocation in children and adolescents in order to examine the need for focused diagnostics. PATIENTS/MATERIAL AND METHODS: This retrospective analysis covered 8 adolescents under 18 years suffering isolated traumatic hip joint dislocation between 2001 and 2017...
May 14, 2018: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29757716/us-assessment-of-sports-related-hip-injuries
#14
Eugen Lungu, Johan Michaud, Nathalie J Bureau
Traumatic and overuse hip injuries occur frequently in amateur and professional athletes. After clinical assessment, imaging plays an important role in diagnosis and in defining care management of these injuries. Ultrasonography (US) is being increasingly used in assessment of hip injuries because of the wide availability of US machines, the lower cost, and the unique real-time imaging capability, which allows both static and dynamic evaluation as well as guidance of point-of-care interventions such as fluid aspiration and steroid injection...
May 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29753876/electromyographic-study-of-hip-muscles-involved-in-total-hip-arthroplasty-surprising-results-using-the-direct-anterior-minimally-invasive-approach
#15
Jules Bernard, Fredson Razanabola, Julien Beldame, Stéphane Van Driessche, Helena Brunel, Thomas Poirier, Jean Matsoukis, Fabien Billuart
BACKGROUND: The functional and clinical benefit of minimally invasive total hip arthroplasty (THA) is well-known, but the literature reports impaired gait and posture parameters as compared to the general population, especially following use of the anterior minimally invasive approach, which has more severe impact on posture than the posterior approach. The reasons for this impairment, however, remain unexplained. We therefore conducted a surface electromyography (sEMG) study of the hip muscles liable to be affected by arthroplasty surgery: gluteus maximus (GMax), gluteus medius (GMed, tensor fasciae latae (TFL), and sartorius (S)...
May 10, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29752504/duration-of-immobilization-after-developmental-dysplasia-of-the-hip-and-open-reduction-surgery
#16
Khaled Emara, Mohamed Ahmed Al Kersh, Fahad Abdulazeez Hayyawi
BACKGROUND: There is no consensus about the duration of post-operative immobilization in the treatment of DDH (developmental dysplasia of hip). Our aim in this study is to compare between two post-operative immobilization protocols for patients undergoing open reduction. MATERIALS AND METHODS: Thirty-eight hips in 32 patients assigned to group A were immobilized in hip spica for four weeks followed by abduction brace application which was gradually weaned through the periods of several months and 29 hips in 24 patients assigned to group B immobilized in hip spica for 12 weeks without further bracing...
May 11, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29752246/a-novel-stimulation-paradigm-to-limit-the-habituation-of-the-nociceptive-withdrawal-reflex
#17
Sabata Gervasio, Christian B Laursen, Ole K Andersen, Kristian Hennings, Erika G Spaich
In gait rehabilitation, combining gait therapy with functional electrical stimulation based on the nociceptive withdrawal reflex (NWR) improves walking velocity and gait symmetry of hemiparetic patients. However, habituation of the NWR can affect the efficacy of training. The current study aimed at identifying the stimulation parameters that would limit, in healthy participants, the habituation of the NWR. The NWR was elicited at every heel-off while the participants walked on a treadmill. Three stimulation paradigms were tested: deterministic paradigm (fixed parameters), stochastic pulse duration paradigm (varying the pulse duration of the stimuli), and stochastic frequency paradigm (varying the frequency of the stimuli)...
May 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/29746626/cutibacterium-avidum-colonization-in-the-groin-is-associated-with-obesity-a-potential-risk-factor-for-hip-periprosthetic-joint-infection-pji
#18
Laura Böni, Stefan P Kuster, Bianka Bartik, Reinhard Zbinden, Patrick O Zingg, Yvonne Achermann
Background: An increase in the incidence of hip periprosthetic joint infections (PJIs) caused by Cutibacterium avidum has recently been detected after implantation of hip arthroplasties with an anterior surgical approach. We raised the question of whether skin colonization with C. avidum differs between the anterior and the lateral thigh as areas of surgical incision fields. Methods: Between February and June 2017, we analyzed skin scrapings from the groin and the anterior and lateral thigh in all patients undergoing a primary hip arthroplasty...
May 9, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29745786/loading-differences-in-single-leg-landing-in-the-forehand-and-backhand-side-courts-after-an-overhead-stroke-in-badminton-a-novel-tri-axial-accelerometer-research
#19
Shogo Sasaki, Yasuharu Nagano, Hiroshi Ichikawa
Anterior cruciate ligament (ACL) injuries in badminton commonly occur during single-leg landing after an overhead stroke in the backhand-side court. This study compared differences in trunk acceleration and kinematic variables during single-leg landing in the forehand- and backhand-side courts after an overhead stroke. Eighteen female junior badminton players performed two singles games while wearing a tri-axial accelerometer. The moment that over 4g of resultant acceleration was generated was determined using synchronised video cameras...
May 10, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29742932/are-there-more-wound-complications-or-infections-with-direct-anterior-approach-total-hip-arthroplasty
#20
Christophe Tissot, Matthias Vautrin, Anais Luyet, Olivier Borens
INTRODUCTION: Compared to a lateral or posterior approach (PA), the direct anterior approach (DAA) does permit a better muscle preservation for total hip arthroplasty (THA). However, there is concern whether this advantage come with increased wound complication and infection leading to reoperation or sometimes major procedures. METHOD: We retrospectively reviewed all patients who underwent primary THA through the PA between January 2009 and April 2013 ( n = 796) and through the DAA between January 2011 and April 2013 ( n = 399) at our institution with a minimum of 2 years follow up regarding all wound complications and all infections...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
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