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Posterior gluteus medius

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https://www.readbyqxmd.com/read/29581655/effect-of-squatting-velocity-on-hip-muscle-latency-in-women-with-patellofemoral-pain-syndrome
#1
Ignacio Orozco-Chavez, Guillermo Mendez-Rebolledo
[Purpose] Neuromuscular activity has been evaluated in patellofemoral pain syndrome but movement velocity has not been considered. The aim was to determine differences in onset latency of hip and knee muscles between individuals with and without patellofemoral pain syndrome during a single leg squat, and whether any differences are dependent on movement velocity. [Subjects and Methods] Twenty-four females with patellofemoral pain syndrome and 24 healthy females participated. Onset latency of gluteus maximus, anterior and posterior gluteus medius, rectus femoris, vastus medialis, vastus lateralis and biceps femoris during a single leg squat at high and low velocity were evaluated...
March 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29573934/influence-of-muscle-fatty-degeneration-on-functional-outcomes-after-endoscopic-gluteus-medius-repair
#2
Mathieu Thaunat, Gilles Clowez, Antoine Desseaux, Colin G Murphy, Mouhcine Sbiyaa, Eric Noël, Bertrand Sonnery-Cottet
PURPOSE: To report the early outcomes of endoscopic repair of tears of the gluteus medius tendon and to determine whether the fatty degeneration had an influence on clinical results. METHODS: Between October 2012 and June 2014, data were prospectively collected and retrospectively reviewed for all patients who underwent endoscopic gluteus medius repair. Patients were assessed pre- and postoperatively using the modified Harris hip score, the nonarthritic hip score, and visual analog scale for pain...
March 21, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29564491/the-incidence-of-hip-dislocation-and-suture-failure-according-to-two-different-types-of-posterior-soft-tissue-repair-techniques-in-total-hip-arthroplasty-a-prospective-randomized-controlled-trial
#3
Jun-Ki Moon, Yeesuk Kim, Kyu-Tae Hwang, Jae-Hyuk Yang, Young-Ho Kim
PURPOSE: Although the posterolateral approach for hip arthroplasty is popular and has numerous advantages, it has been known to have a propensity for dislocation. The repair of short external rotator muscles with capsule is important for reducing dislocation. The purpose of this study is to investigate the incidence of suture failure, dislocation, and time to failure for two repair techniques for posterior soft tissue repair during total hip arthroplasty. METHODS: In this study of 167 total hip arthroplasties in 159 patients, we reattached the short external rotator tendon with posterior capsule to the greater trochanter transosseously (tendon-to-bone, 87 hips) or the gluteus medius tendon (tendon-to-tendon, 80 hips)...
March 21, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29554437/does-greater-trochanter-decortication-affect-suture-anchor-pullout-strength-in-abductor-tendon-repairs-a-biomechanical-study
#4
Jill G Putnam, Anikar Chhabra, Paulo Castañeda, J Brock Walker, Collin C Barber, James A Lendrum, David E Hartigan
BACKGROUND: Greater trochanter decortication is frequently performed at the time of abductor tendon repair to theoretically increase healing potential. No previous studies have determined the effect that greater trochanter decortication has on the pullout strength of suture anchors. Hypothesis/Purpose: The purpose of this study is to determine whether greater trochanter decortication and bone mineral density affect suture anchor pullout strength in abductor tendon repair. The authors hypothesize that both will have a significant detrimental effect on suture anchor pullout strength...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29410451/non-knee-spanning-muscles-contribute-to-tibiofemoral-shear-as-well-as-valgus-and-rotational-joint-reaction-moments-during-unanticipated-sidestep-cutting
#5
Nirav Maniar, Anthony G Schache, Prasanna Sritharan, David A Opar
Anterior cruciate ligament (ACL) injuries are a burdensome condition due to potential surgical requirements and increased risk of long term debilitation. Previous studies indicate that muscle forces play an important role in the development of ligamentous loading, yet these studies have typically used cadaveric models considering only the knee-spanning quadriceps, hamstrings and gastrocnemius muscle groups. Using a musculoskeletal modelling approach, we investigated how lower-limb muscles produce and oppose key tibiofemoral reaction forces and moments during the weight acceptance phase of unanticipated sidestep cutting...
February 6, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29410172/impact-of-additional-treatment-of-para-lumbar-and-peripheral-nerve-diseases-after-lumbar-spine-surgery
#6
Juntaro Matsumoto, Toyohiko Isu, Kyongsong Kim, Naotaka Iwamoto, Kazuyoshi Yamazaki, Daijiro Morimoto, Masanori Isobe
INTRODUCTION: Some patients suffer failed back surgery syndrome (FBSS) after lumbar spine surgery. We report the effect of additional treatments for para-lumbar- and peripheral nerve diseases addressing residual symptoms after lumbar spine surgery. MATERIALS AND METHODS: We enrolled 74 patients (59 men and 15 women, mean age 62.9 years) who had undergone lumbar posterior decompression surgery in our department. Mean follow-up after initial lumbar surgery was 26...
January 31, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29324458/ultrasound-imaging-and-guided-injection-for-the-lateral-and-posterior-hip
#7
Ke-Vin Chang, Wei-Ting Wu, Henry L Lew, Levent Özçakar
Ultrasound has emerged as one of the most utilized tools to diagnose musculoskeletal disorders and to assist in interventions. Traditionally, sonographic examination of the hip joint has been challenging because most of the major structures are deeply situated, thus requiring the use of curvilinear transducer for better penetrance. The posterior lateral hip is a frequent area for musculoskeletal pain and nerve entrapments. Common disorders include greater trochanteric pain syndrome, gluteus medius tendinopathy, piriformis syndrome, pudendal neuralgia, and proximal hamstring tendinopathy...
April 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29299478/the-r%C3%A3-ttinger-approach-for-total-hip-arthroplasty-technique-comparison-to-the-direct-lateral-approach-and-review-of-literature
#8
Ronald E Delanois, Assem A Sultan, Ahmed A Albayar, Anton Khlopas, Chukwuweike U Gwam, Nipun Sodhi, Suela Lamaj, Jared M Newman, Michael A Mont
Background: Multiple approaches to the hip joint have been developed utilizing various intervals and/or intermuscular planes when performing a total hip arthroplasty (THA), each proposing certain advantages. Of these, the Röttinger approach (modified anterolateral or Watson-Jones) is potentially muscle-sparing. Multiple studies have demonstrated favorable outcomes with this approach. However, others showed more complications with a slow learning curve. Due to the paucity of evidence we conducted this study to: (I) present our operative experience and technique of the Röttinger approach; (II) compare short-term complications and operative room (OR) times of this approach to the direct lateral; and (III) review the available literature...
December 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29287785/evaluation-of-muscle-activity-just-after-straight-leg-raising-exercise-by-using-18-fdg-pet
#9
Hiroyuki Shiozawa, Takashi Ohsawa, Yoshito Tsushima, Tetsuya Higuchi, Kenji Takagishi, Hirotaka Chikuda
BACKGROUND: Exercise therapy is one of the recognized treatment methods for knee osteoarthritis (KOA). One such exercise technique, straight leg raising (SLR), is widely known as a home exercise method for strengthening the quadriceps femoris muscle. However, whether this exercise truly strengthens the quadriceps is not known. The objective of the present study was to investigate which lower limb muscle is stimulated and shows increased activity with SLR. METHODS: A total of 14 lower limbs in seven healthy adult male volunteers (mean age: 31...
March 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29037648/test-retest-reliability-of-myofascial-trigger-point-detection-in-hip-and-thigh-areas
#10
E Rozenfeld, A S Finestone, U Moran, E Damri, L Kalichman
BACKGROUND: Myofascial trigger points (MTrP's) are a primary source of pain in patients with musculoskeletal disorders. Nevertheless, they are frequently underdiagnosed. Reliable MTrP palpation is the necessary for their diagnosis and treatment. The few studies that have looked for intra-tester reliability of MTrPs detection in upper body, provide preliminary evidence that MTrP palpation is reliable. Reliability tests for MTrP palpation on the lower limb have not yet been performed. OBJECTIVE: To evaluate inter- and intra-tester reliability of MTrP recognition in hip and thigh muscles...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29034801/gluteus-minimus-and-gluteus-medius-muscle-activity-during-common-rehabilitation-exercises-in-healthy-postmenopausal-women
#11
Charlotte Ganderton, Tania Pizzari, Jill Cook, Adam Semciw
Study Design Controlled laboratory study, cross-sectional. Background The gluteus medius (GMed) and gluteus minimus (GMin) provide dynamic stability of the hip joint and pelvis. These muscles are susceptible to atrophy and injury in individuals during menopause, aging, and disease. Numerous studies have reported on the ability of exercises to elicit high levels of GMed activity; however, few studies have differentiated between the portions of the GMed, and none have examined the GMin. Objectives To quantify and rank the level of muscle activity of the 2 segments of the GMin (anterior and posterior fibers) and 3 segments of the GMed (anterior, middle, and posterior fibers) during 4 isometric and 3 dynamic exercises in a group of healthy, postmenopausal women...
December 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28888906/the-comparison-of-ground-reaction-forces-and-lower-limb-muscles-correlation-and-activation-time-delay-between-forward-and-backward-walking
#12
Mohammadreza Mahaki, Gustavo Souto De Sá E Souza, Raghad Mimar, Marcus Fraga Vieira
This study aimed to compare the ground reaction forces (GRF) and lower limb muscles correlation and activation time delay between Forward (FW) and Backward (BW) walking. Twenty-four male students participated in this research. Electromyogram activities of gluteus medius, biceps femoris, medial gastrocnemius, soleus and anterior tibialis muscles along with GRFs were measured. Each participant performed two FW and two BW trials bare foot. Statistical parametric mapping (SPM) analysis was performed over anterior-posterior and vertical GRFs time series...
October 2017: Gait & Posture
https://www.readbyqxmd.com/read/28857115/muscle-function-and-coordination-of-stair-ascent
#13
Nicole G Harper, Jason M Wilken, Richard R Neptune
Stair ascent is an activity of daily living and necessary for maintaining independence in community environments. One challenge to improving an individual's ability to ascend stairs is a limited understanding of how lower-limb muscles work in synergy to perform stair ascent. Through dynamic coupling, muscles can perform multiple functions and require contributions from other muscles to perform a task successfully. The purpose of this study was to identify the functional roles of individual muscles during stair ascent and the mechanisms by which muscles work together to perform specific subtasks...
January 1, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28789998/does-hip-joint-positioning-affect-maximal-voluntary-contraction-in-the-gluteus-maximus-gluteus-medius-tensor-fasciaelatae-and-sartorius-muscles
#14
J Bernard, J Beldame, S Van Driessche, H Brunel, T Poirier, P Guiffault, J Matsoukis, F Billuart
BACKGROUND: Minimally invasive total hip arthroplasty (THA) is presumed to provide functional and clinical benefits, whereas in fact the literature reveals that gait and posturographic parameters following THA do not recover values found in the general population. There is a significant disturbance of postural sway in THA patients, regardless of the surgical approach, although with some differences between approaches compared to controls: the anterior and anterolateral minimally invasive approaches seem to be more disruptive of postural parameters than the posterior approach...
August 5, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28675778/hip-abductor-muscle-activity-during-walking-in-individuals-with-gluteal-tendinopathy
#15
K Allison, S E Salomoni, K L Bennell, T V Wrigley, F Hug, B Vicenzino, A Grimaldi, P W Hodges
The external hip adduction moment during walking is greater in individuals with gluteal tendinopathy (GT) than pain-free controls. Although this likely represents a greater demand on the hip abductor muscles implicated in GT, no study has investigated activation of these muscles in GT. For this purpose, fine wire electrodes were inserted into the segments of the gluteus minimus and medius muscles, and surface electrodes placed on the tensor fascia lata, upper gluteus maximus, and vastus lateralis muscles of eight individuals with, and eight without, GT...
February 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28605003/outcomes-of-gluteus-maximus-and-tensor-fascia-lata-transfer-for-primary-deficiency-of-the-abductors-of-the-hip
#16
Sivashankar Chandrasekaran, Nader Darwish, S Pavan Vemula, Parth Lodhia, Carlos Suarez-Ahedo, Benjamin G Domb
PURPOSE: This study aims to present 3 patients' results after undergoing gluteus maximus and tensor fascia lata (TFL) transfer for chronic abductor tears unable to be repaired primarily. METHODS: 3 patients were identified intraoperatively as having an abductor tear unable to be repaired primarily. The anterior 1/3 of the gluteus maximus and the posterior 1/3 of the TFL were mobilised and transferred to the greater trochanter in order to reproduce the normal force vector of the gluteus medius and minimus...
November 21, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28171786/a-comparison-of-gluteus-medius-gluteus-minimus-and-tensor-facia-latae-muscle-activation-during-gait-in-post-menopausal-women-with-and-without-greater-trochanteric-pain-syndrome
#17
Charlotte Ganderton, Tania Pizzari, Tanya Harle, Jill Cook, Adam Semciw
The effect of greater trochanteric pain syndrome (GTPS) on gluteus medius (GMed) and minimus (GMin) activation in post-menopausal women is unknown. The aim of this study was to compare segmental muscle activation and variability of the GMed, GMin and tensor fascia latae (TFL) during gait in post-menopausal women with and without GTPS. Intramuscular electrodes were inserted into segments of GMin (x2) and GMed (x3) and a surface electrode placed on TFL. Ten control participants and 8 with GTPS completed six walking trials...
April 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28039889/sonoanatomy-and-pathology-of-the-posterior-band-of-the-gluteus-medius-tendon
#18
REVIEW
Douglas F Hoffman, Jay Smith
Greater trochanteric pain syndrome is a common clinical entity that most often results from disorders of the gluteus medius tendon. There are two distinct bands of the gluteus medius tendon, and abnormalities may affect the anterior or posterior band in isolation or simultaneously. Although abnormalities of the anterior band are more common, awareness and sonographic detection of posterior band abnormalities is essential to guide treatment in the setting of greater trochanteric pain syndrome.
February 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27666775/muscle-mri-in-duchenne-muscular-dystrophy-evidence-of-a-distinctive-pattern
#19
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/27649511/the-effects-of-acute-experimental-hip-muscle-pain-on-dynamic-single-limb-balance-performance-in-healthy-middle-aged-adults
#20
Anna L Hatton, François Hug, Sarah H Chen, Christine Reid, Nicole A Sorensen, Kylie Tucker
Middle-aged adults with painful hip conditions show balance impairments that are consistent with an increased risk of falls. Pathological changes at the hip, accompanied by pain, may accelerate pre-existing age-related balance deficits present in midlife. To consider the influence of pain alone, we investigated the effects of acute experimental hip muscle pain on dynamic single-limb balance in middle-aged adults. Thirty-four healthy adults aged 40-60 years formed two groups (Group-1: n=16; Group-2: n=18). Participants performed four tasks: Reactive Sideways Stepping (ReactSide); Star Excursion Balance Test (SEBT); Step Test; Single-Limb Squat; before and after an injection of hypertonic saline into the right gluteus medius muscle (Group-1) or ∼5min rest (Group-2)...
October 2016: Gait & Posture
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