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https://www.readbyqxmd.com/read/27900442/arthroscopic-revision-release-of-gluteal-muscle-contracture-after-failed-primary-open-surgery
#1
Xintao Zhang, Xiaocheng Jiang, Feilin He, Zuru Liang, Tian You, Dadi Jin, Wentao Zhang
PURPOSE: The treatment of gluteal muscle contracture (GMC) after failed primary open release surgery has rarely been reported in the literature. GMC is a troublesome health problem in some developing countries, and it can result in the limitation of patients' hip function, leading to the development of inferiority complexes. The aim of this study is to evaluate the effect of arthroscopic revision surgery after failed primary open release on patients with GMC. METHODS: A total of 278 hips of 140 patients who underwent arthroscopic revision procedures after failed primary open surgeries were gathered from the department files...
November 29, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27739568/impact-of-individual-anatomy-on-the-benefit-of-cup-medialisation-in-total-hip-arthroplasty
#2
Alexandre Terrier, Valérie Parvex, Hannes A Rüdiger
INTRODUCTION: In total hip arthroplasty, cup medialisation with compensatory increase of femoral offset has been proposed to increase the moment arms of abductor muscles. However, this technique is associated with a loss of acetabular bone stock. Previous data indicates that the potential benefit is not constant among patients and is likely related to patient anatomy. METHOD: Therefore, to be able to select patients who would benefit most from this technique, we measured several anatomical parameters of the pelvis and femur in 15 patients; and evaluated correlations between them and the changes of moment arms associated with cup medialisation...
October 8, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27709043/endoscopic-gluteus-medius-repair-augmented-with-bioinductive-implant
#3
Daniel J Kaplan, Andrew P Dold, David J Fralinger, Robert J Meislin
Patients with gluteus minimus and medius tears that fail nonoperative management may be indicated for surgical repair; however, structural failure after gluteal tendon repair remains unacceptably high. This is likely related to the limited healing potential of tendinous tissue, which is poorly vascular and heals by formation of fibrocartilaginous scar tissue rather than histologically normal tendon. An emerging option to augment tendon healing is the use of a bioinductive implant that is designed to amplify the host healing response and induce the formation of healthy tendon tissue...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27677011/correction-of-hip-internal-rotation-in-walking-cerebral-palsy-adolescent-using-a-soft-tissue-procedure-an-alternative-to-femoral-rotation-osteotomy
#4
Bruno Dohin, Elie Haddad, Hassan Al Khoury Salem, Mohamed Merhez Kilani
OBJECTIVE: Hip internal rotation (HIR) during gait is one of the main functional disorders related to cerebral palsy (CP) in children. Most of the procedures proposed rotational osteotomy of the femur (FRO), (and/or tibia). However, multilevel surgery (SEMLS) including bone procedure, implicates more difficult and longer rehabilitation. When bone deformity is moderate, the authors hypothesized that FRO could be avoided. They developed a soft tissues procedure to improve HIR. The aim of the study was assessment of the procedure...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27666775/muscle-mri-in-duchenne-muscular-dystrophy-evidence-of-a-distinctive-pattern
#5
Kiran Polavarapu, Mahadevappa Manjunath, Veeramani Preethish-Kumar, Deepha Sekar, Seena Vengalil, PriyaTreesa Thomas, Talakad N Sathyaprabha, Rose Dawn Bharath, Atchayaram Nalini
The purpose of this study was to describe the pattern of muscle involvement using MRI findings and correlate with functional as well as muscle strength measurements. Fifty genetically confirmed DMD children with a mean age of 7.6 ± 2.8 (4-15 years) underwent muscle MRI and qualitative assessment was done for muscle changes using Mercuri staging for fibro-fatty replacement on T1 sequence and Borsato score for myoedema on STIR sequence. Detailed phenotypic characterisation was done with Manual muscle testing (modified MRC grading) and Muscular Dystrophy Functional Rating Scale (MDFRS)...
November 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/27515242/distal-extension-of-the-direct-anterior-approach-to-the-hip-a-cadaveric-feasibility-study
#6
Stijn G M Ghijselings, Ronald Driesen, Jean-Pierre Simon, Kristoff Corten
BACKGROUND: The direct anterior approach (DAA) is becoming more popular as the standard surgical approach for primary total hip arthroplasty. However, femoral complications of up to 2.8% have been reported. Therefore, it is important for surgeons to understand the periarticular neurovascular anatomy in order to safely deal with intraoperative complications. METHODS: Anatomic dissections were performed on 20 cadaveric hips. The neurovascular structures anterior to the femur and distal to the intertrochanteric line were dissected and its position was described in relation to anatomic landmarks easily identified through the DAA: anterior superior iliac spine (ASIS), the insertion of the gluteus minimus (GM), and the lesser trochanter (LT)...
July 15, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27459688/reliability-of-mr-based-volumetric-3-d-analysis-of-pelvic-muscles-among-subjects-with-low-back-with-leg-pain-and-healthy-volunteers
#7
Elżbieta Skorupska, Przemysław Keczmer, Rafał M Łochowski, Paulina Tomal, Michał Rychlik, Włodzimierz Samborski
AIM: Lately, the diagnostic value of magnetic resonance imaging, Lasègue sign and classic neurological signs have been considered not accurate enough to distinguish the radicular from non-radicular low back with leg pain (LBLP) and a calculation of the symptomatic side muscle volume has been indicated as a probable valuable marker. However, only the multifidus muscle volume has been calculated so far. The main objective of the study was to verify whether LBLP subjects presented symptomatic side pelvic muscle atrophy compared to healthy volunteers...
2016: PloS One
https://www.readbyqxmd.com/read/27351165/-not-available
#8
U Dorn, F Landauer, T Hofstaedter
Gluteal tendinopathy as well as partial and full-thickness tears of gluteal tendons (gluteus minimus and/or medius tendon) were underestimated as a cause of chronic pain in the past, and treatment was most commonly based on the diagnosis of trochanteric bursitis. Tendinous pathologies can either stay asymptomatic or cause pain and muscular dysfunction, not necessarily being associated with osteoarthritis of the hip 1. As the terminus "rotator cuff tear of the hip" was published in 1997 2, its aetiopathogenesis was reconsidered, resulting in improvements in diagnosis and treatment...
June 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/27343396/peritrochanteric-endoscopy
#9
REVIEW
Brian A Mosier, Noah J Quinlan, Scott D Martin
Over the last decade, there have been significant advances in endoscopic techniques for peritrochanteric disorders of the hip. Endoscopic repair of gluteus medius and minimus tears has demonstrated good to excellent results in most patients who meet surgical indications with extremely low complication rates. Treatment of coxa saltans and other peritrochanteric disorders are also described, though the literature lacks sufficient evidence to guide treatment. As our understanding of peritrochanteric disorders evolves, endoscopic intervention will continue to progress with the development of improved technology to treat these disorders and ensure good outcomes...
July 2016: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27343391/capsular-management-in-hip-arthroscopy
#10
REVIEW
Joshua D Harris
The hip capsule is a highly complex anatomic structure, which influences normal hip motion and biomechanics. A dynamic stabilizing capsular contribution exists in the iliocapsularis and gluteus minimus, among other musculotendinous structures crossing the joint. Variable types and sizes of capsulotomy are necessary to sufficiently visualize and address the bony and soft tissue pathologic source of symptoms. Unrepaired capsulotomies may leave the hip significantly unstable to variable degrees. Capsular closure is a necessary part of a comprehensive arthroscopic hip preservation procedure...
July 2016: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27342822/mr-imaging-of-soft-tissue-alterations-after-total-hip-arthroplasty-comparison-of-classic-surgical-approaches
#11
Christoph A Agten, Reto Sutter, Claudio Dora, Christian W A Pfirrmann
OBJECTIVES: To compare soft-tissue changes after total hip arthroplasty with posterior, direct-lateral, anterolateral, or anterior surgical approaches. METHODS: MRI of 120 patients after primary total hip arthroplasty (30 per approach) were included. Each MRI was assessed by two readers regarding identification of surgical access, fatty muscle atrophy (Goutallier classification), tendon quality (0 = normal, 1 = tendinopathy, 2 = partial tear, 3 = avulsion), and fluid collections...
June 24, 2016: European Radiology
https://www.readbyqxmd.com/read/27312538/does-menopausal-hormone-therapy-mht-exercise-or-a-combination-of-both-improve-pain-and-function-in-post-menopausal-women-with-greater-trochanteric-pain-syndrome-gtps-a-randomised-controlled-trial
#12
Charlotte Ganderton, Adam Semciw, Jill Cook, Tania Pizzari
BACKGROUND: Greater trochanteric pain syndrome (GTPS) is pathology in the gluteus medius and minimus tendons and trochanteric bursa that causes debilitating tendon pain and dysfunction, particularly in post-menopausal women. Limited evidence in clinical studies suggests hormone changes after menopause may have a negative effect on tendon. This protocol describes a randomised controlled trial comparing the effectiveness of menopausal hormone therapy (MHT) and exercise therapy in reducing pain and dysfunction associated with GTPS in post-menopausal women...
2016: BMC Women's Health
https://www.readbyqxmd.com/read/27264405/effect-of-sloped-walking-on-lower-limb-muscle-forces
#13
Nathalie Alexander, Hermann Schwameder
Lower limb joint loadings are increased during sloped walking compared to level walking and muscle forces are major contributors to lower limb joint forces. Therefore, the aim of this study was to analyze lower limb muscle forces during sloped walking at different inclinations. Eighteen healthy male participants (27.0±4.7y, 1.80±0.05m, 74.5±8.2kg) walked at a pre-set speed of 1.1m/s on a ramp at the inclinations of 0°, ±6°, ±12° and ±18°. Kinematic data were captured with a motion capture system and kinetic data were recorded with two force plates imbedded into the ramp...
June 2016: Gait & Posture
https://www.readbyqxmd.com/read/27163446/hip-abductor-muscle-volume-in-hip-osteoarthritis-and-matched-controls
#14
A Zacharias, T Pizzari, D J English, T Kapakoulakis, R A Green
OBJECTIVE: Hip abductor muscle strength and function is negatively impacted by the presence of hip osteoarthritis (OA). This study aimed to quantify differences in hip abductor muscle volume, fatty infiltration and strength in a unilateral hip OA population when compared to a control group. Impact of radiographic severity of OA on these variables was also examined. METHODS: Volumes of gluteus maximus (GMax), medius (GMed) minimus (GMin) and tensor fascia lata (TFL) was measured using MRI and muscle volume asymmetry between limbs was calculated...
October 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27139495/exercise-and-load-modification-versus-corticosteroid-injection-versus-wait-and-see-for-persistent-gluteus-medius-minimus-tendinopathy-the-leap-trial-a-protocol-for-a-randomised-clinical-trial
#15
Rebecca Mellor, Alison Grimaldi, Henry Wajswelner, Paul Hodges, J Haxby Abbott, Kim Bennell, Bill Vicenzino
BACKGROUND: Lateral hip pain is common, particularly in females aged 40-60 years. The pain can affect sleep and daily activities, and is frequently recalcitrant. The condition is often diagnosed as trochanteric bursitis, however radiological and surgical studies have revealed that the most common pathology is gluteus medius/minimus tendinopathy. Patients are usually offered three treatment options: (a) corticosteroid injection (CSI), (b) physiotherapy, or (c) reassurance and observation...
April 30, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27134770/diaphragm-assessment-in-mice-overexpressing-phospholamban-in-slow-twitch-type-i-muscle-fibers
#16
Val Andrew Fajardo, Ian Curtis Smith, Eric Bombardier, Paige J Chambers, Joe Quadrilatero, Allan Russell Tupling
AIMS: Phospholamban (PLN) and sarcolipin (SLN) are small inhibitory proteins that regulate the sarco(endo)plasmic reticulum Ca(2+)-ATPase (SERCA) pump. Previous work from our laboratory revealed that in the soleus and gluteus minimus muscles of mice overexpressing PLN (Pln (OE)), SERCA function was impaired, dynamin 2 (3-5 fold) and SLN (7-9 fold) were upregulated, and features of human centronuclear myopathy (CNM) were observed. Here, we performed structural and functional experiments to evaluate whether the diaphragm muscles of the Pln (OE) mouse would exhibit CNM pathology and muscle weakness...
June 2016: Brain and Behavior
https://www.readbyqxmd.com/read/27131851/sensitivity-of-subject-specific-models-to-hill-muscle-tendon-model-parameters-in-simulations-of-gait
#17
V Carbone, M M van der Krogt, H F J M Koopman, N Verdonschot
Subject-specific musculoskeletal (MS) models of the lower extremity are essential for applications such as predicting the effects of orthopedic surgery. We performed an extensive sensitivity analysis to assess the effects of potential errors in Hill muscle-tendon (MT) model parameters for each of the 56 MT parts contained in a state-of-the-art MS model. We used two metrics, namely a Local Sensitivity Index (LSI) and an Overall Sensitivity Index (OSI), to distinguish the effect of the perturbation on the predicted force produced by the perturbed MT parts and by all the remaining MT parts, respectively, during a simulated gait cycle...
June 14, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27012726/effect-of-motor-control-training-on-hip-muscles-in-elite-football-players-with-and-without-low-back-pain
#18
M Dilani Mendis, Julie A Hides
OBJECTIVES: Previous research has shown that motor control training improved size and function of trunk muscles in elite football players with and without low back pain (LBP). Imbalances in hip muscles have been found in athletes with LBP and it is not known if motor control training can change these muscles. This study investigated if a motor control intervention program affected hip muscle size in elite football players with and without LBP. DESIGN: Panel-randomised intervention design...
March 3, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/26977550/endoscopic-treatment-of-gluteus-medius-tears-a-review
#19
Frantz R Lerebours, Randy Cohn, Thomas Youm
Greater trochanteric pain syndrome (GTPS) is a term used to describe disorders of the peritrochanteric region. This constellation of conditions includes greater trochanteric bursitis, gluteus medius (GM) tears, and external coxa saltans or snapping hip syndrome. Tears of the abductor mechanism, more specifically gluteus medius tears, have recently gained a considerable amount of interest in the orthopaedic literature. Abductor tears were first described by Bunker and Kagan in the late 1990s. They used the rotator cuff as an analogous structure to describe the pathological process associated with gluteus medius tears...
March 2016: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/26954272/m-mode-ultrasound-reveals-earlier-gluteus-minimus-activity-in-individuals-with-chronic-hip-pain-during-a-step-down-task
#20
Angela V Dieterich, Louise Deshon, Geoffrey R Strauss, Jan McKay, Christine M Pickard
STUDY DESIGN: Controlled laboratory study. BACKGROUND: The hip abductor muscles are important hip joint stabilizers. Hip joint pain may alter muscle recruitment. Motion-mode (M-mode) ultrasound enables noninvasive measurements of the onset of deep and superficial muscle motion, which is associated with activation onset. OBJECTIVES: To compare (1) the onset of superficial and deep gluteus medius and gluteus minimus muscle motion relative to the instant of peak ground reaction force and (2) the level of swing-phase muscle motion during step-down between subjects with chronic hip pain and controls using M-mode ultrasound...
April 2016: Journal of Orthopaedic and Sports Physical Therapy
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