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https://www.readbyqxmd.com/read/29564615/minimally-invasive-total-knee-replacement-techniques-and-results
#1
REVIEW
Frederic Picard, Angela Deakin, Navin Balasubramanian, Alberto Gregori
In this review, we outlined the definition of minimally invasive surgery (MIS) in total knee replacement (TKR) and described the different surgical approaches reported in the literature. Afterwards, we went through the most recent studies assessing MIS TKR. Next, we searched for potential limitations of MIS knee replacement and tried to answer the following questions: Are there selective criteria and specific patient selection for MIS knee surgery? If there are, then what are they? After all, a discussion and conclusion completed this article...
March 22, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29540410/clinical-effectiveness-of-patella-mobilisation-therapy-versus-a-waiting-list-control-for-knee-osteoarthritis-a-protocol-for-a-pragmatic-randomised-clinical-trial
#2
Regina Wing Shan Sit, Keith Kwok Wai Chan, Benjamin Hon Kei Yip, Daisy Dexing Zhang, Kenneth Dean Reeves, Ying Ho Chan, Vincent Chi Ho Chung, Samuel Yeung Shan Wong
INTRODUCTION: Knee osteoarthritis (KOA) is a common, disabling and costly medical condition. The patellofemoral joint is a critical source of pain in individuals with KOA, and coexistence of patellofemoral osteoarthritis (PFOA) and tibiofemoral osteoarthritis (TFOA) is sometimes observed. The identification of subgroups with PFOA and customised interventions to correct underlying pathomechanics is beneficial for individuals with KOA. This study aims to evaluate whether a clinic-based patella mobilisation therapy (PMT) leads to significant improvement in pain, physical function and quality of life of individuals with KOA...
March 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29420154/hip-position-and-sex-differences-in-motor-unit-firing-patterns-of-the-vastus-medialis-and-vastus-medialis-oblique-in-healthy-individuals
#3
Yi-Ling Peng, Matthew S Tenan, Lisa Griffin
Weakness of the vastus medialis oblique (VMO) has been proposed to explain the high prevalence of knee pain in females. Clinicians commonly use exercises in an attempt to preferentially activate the VMO. Recently, our group found evidence to support clinical theory that the VMO is neurologically distinct from the vastus medialis (VM). However, the ability to voluntarily activate these muscle sub-sections is still disputed. The aim of this study was to determine if VM and VMO activation varies between sexes and if control of the two muscles is different between rehabilitation exercises...
February 8, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29339848/habitual-patellar-dislocation-in-children-results-of-surgical-treatment-by-modified-four-in-one-technique
#4
Ravi Mittal, Avtar Singh Balawat, Vikrant Manhas, Amit Roy, Navin Kumar Singh
Background: Habitual patellar dislocation is a rare condition affecting children. The growth plates are open in children and any surgical intervention should take that in to consideration. We are describing a modified four in one technique for habitual patellar dislocation, which is a soft tissue procedure without the use of any implant. Method: In this study we included 6 children (4 females and 2 males) with open growth plates, which were diagnosed with habitual patellar dislocation...
November 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29200630/changes-in-lower-limb-muscle-activity-based-on-angle-of-ankle-abduction-during-lunge-exercise
#5
Yoonhee Choi, Sangyong Lee
[Purpose] This study compared the activity of the quadriceps femoris muscle according to the angle of ankle abduction during a lunge exercise. [Subjects and Methods] Fifteen male healthy volunteers participated in the study. All participants performed the lunge exercise with different angles of ankle abduction (0°, 20°, 40°, 60°). The activity of the rectus femoris (RF), vastus lateralis (VL) and vastus medialis oblique (VMO) muscles were recorded for the four angles by using a surface electromyography system...
November 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29168968/cross-sectional-comparison-of-age-related-changes-in-the-quadriceps-femoris-in-japanese-basketball-players
#6
Yuta Sekine, Norikazu Hirose
Background This study examines age-related changes in the quadriceps femoris (QF), subdivided into the vastus medialis oblique (VMO), vastus medialis (VM), rectus femoris (RF), vastus intermedius (VI) and vastus lateralis (VL) in basketball players. Subjects Seventy male basketball players were divided into four groups according to age (12-13, 14-15, 16-17, and 18-20 years). Methods Ultrasonography was used to measure muscle architecture of the VMO, VM, RF, VI and VL. We created cubic approximate expressions and calculated inflexion points to evaluate peak growth age of each muscle head...
November 23, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/29128877/the-location-of-the-medial-parapatellar-arthrotomy-influences-intraoperative-patella-tracking
#7
Scott R Nodzo, Maximilian Kasparek, Kilian Rueckl, Friedrich Boettner
PURPOSE: The medial parapatellar arthrotomy (MPPA) is a commonly utilized surgical approach; however, the placement of the arthrotomy and its influence on intraoperative patellar tracking has not been evaluated. METHODS: Six knees from three fresh frozen cadavers with transthoracic amputations were operated on. All underwent standard posterior stabilized total knee arthroplasty using a medial parapatellar approach placed at the border of the vastus medialis oblique (VMO)-quadriceps junction...
November 11, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28764280/content-validation-of-total-knee-replacement-rehabilitation-protocol-in-indian-population
#8
P Antony Leo Aseer, G Arun Maiya, M Mohan Kumar, P V Vijayaraghavan
INTRODUCTION: Total knee replacement (TKR) surgery has become the most successful surgery for patients with severe debilitating arthritis. The guidelines for rehabilitation progression should be tailored respecting the tissue healing parameters. Hence, the current literature states a need for protocol to mitigate these impairments and ultimately result in improved functional outcomes. OBJECTIVE: The present study aimed to validate the content of TKR rehabilitation protocol in Indian population...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658860/muscle-activation-profiles-and-co-activation-of-quadriceps-and-hamstring-muscles-around-knee-joint-in-indian-primary-osteoarthritis-knee-patients
#9
Sanjeev Kumar Sharma, Shiv Lal Yadav, U Singh, Sanjay Wadhwa
INTRODUCTION: Osteoarthritis (OA) of knee is a common joint disease. It is associated with reduced knee joint stability due to impaired quadriceps strength, pain, and an altered joint structure. There is altered muscle activation in knee OA patients, which interferes with normal load distribution around the knee and facilitates disease progression. AIM: Our primary aim was to determine activation patterns of the muscles i.e., quadriceps and hamstrings in knee OA patients during walking...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28632896/reliability-of-a-novel-approach-for-quadriceps-motor-point-assessment
#10
Ada Weiss, Neal R Glaviano, Jacob Resch, Susan Saliba
INTRODUCTION: We studied the ability of clinicians to identify quadriceps motor points using a transcutaneous electrical stimulation unit (TENS). METHODS: Twenty-two certified athletic trainers and 1 expert-rater identified the 7 motor points of the quadriceps at 2 time-points separated by 1 week. The difference was calculated between where each participant and the expert-rater identified each motor point using an x-y coordinate system. Bland-Altman plots were used to compare differences between 2 testing sessions...
January 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/28357555/morphological-study-and-relations-of-the-fascia-vasto-adductoria
#11
Eman Elazab Beheiry Elazab
The precise description of the fascia vasto-adductoria (FVA) has become an issue of great surgical and clinical importance. Neurovascular entrapment within the adductor canal (AC) may simulate many clinical conditions for cases presented with medial knee or leg pain and ischemic manifestations of the leg. The aim of the present work is to describe the morphological features of the FVA and to elucidate its neurovascular relations. Forty thigh specimens, pertaining to 15 embalmed and five fresh adult human cadavers, were dissected in pursuit of this aim...
October 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28303844/significance-of-diffusion-tensor-imaging-of-vastus-medialis-oblique-in-recurrent-patellar-dislocation
#12
Li-Si Liu, Zhuo-Zhao Zheng, Hui-Shu Yuan
BACKGROUND: Numerous studies have investigated the influence of osseous factors on patellofemoral joint instability, but research on the influence of dynamic muscle factors in vivo is still in the exploratory stage. This study aimed to use magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) to evaluate vastus medialis oblique (VMO) fiber bundles in patients with recurrent patellar dislocation to explore the changes in muscle morphology and function. METHODS: This prospective study involved 30 patients (7 males and 23 females; average age, 21...
March 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28210036/a-study-on-muscle-activity-and-ratio-of-the-knee-extensor-depending-on-the-types-of-squat-exercise
#13
Jeong-Il Kang, Joon-Su Park, Hyun Choi, Dae-Keun Jeong, Hye-Min Kwon, Young-Jun Moon
[Purpose] For preventing the patellofemoral pain syndrome, this study aims to suggest a proper squat method, which presents selective muscle activity of Vastus Medialis Oblique and muscle activity ratios of Vastus Medialis Oblique/Vastus Lateralis by applying squat that is a representative weight bearing exercise method in various ways depending on the surface conditions and knee bending angles. [Subjects and Methods] An isometric squat that was accompanied by hip adduction, depending on the surface condition and the knee joint flexion angle, was performed by 24 healthy students...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28167183/foot-exercise-and-taping-in-patients-with-patellofemoral-pain-and-pronated-foot
#14
Jihyun Lee, Jangwhon Yoon, Heonseock Cynn
This study compared the effect of three foot conditions (untreated, short foot [SF] exercise, and Tape) on knee and ankle muscle activity during forward descending of stairs in subjects with patellofemoral pain syndrome (PFPS) and a pronated foot. Surface electromyography activities in the vastus medialis oblique (VMO), vastus lateralis (VL), and abductor hallucis (AbdH) were recorded during forward descending stairs; Surface electromyography data were expressed as percentages of the maximal voluntary isometric contraction...
January 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28142073/attentional-focusing-instructions-influence-quadriceps-activity-characteristics-but-not-force-production-during-isokinetic-knee-extensions
#15
David C Marchant, Matt Greig
The attentional focus emphasised in verbal instruction influences movement and muscle recruitment characteristics, with an external focus (onto movement effects) typically benefiting performance. However, contrasting findings suggest either a selective isolation or spreading activation effect on associated muscles as a result of internally focused instruction (movement characteristics). In the present experiment, participants completed maximal isokinetic concentric leg extension exercise using internally (muscle specific: vastus medialis oblique) or externally (outcome specific) focused instructions...
April 2017: Human Movement Science
https://www.readbyqxmd.com/read/28137523/difference-in-muscle-activation-patterns-during-high-speed-versus-standard-speed-yoga-a-randomized-sequence-crossover-study
#16
RANDOMIZED CONTROLLED TRIAL
Melanie Potiaumpai, Maria Carolina Massoni Martins, Claudia Wong, Trusha Desai, Roberto Rodriguez, Kiersten Mooney, Joseph F Signorile
OBJECTIVES: To compare the difference in muscle activation between high-speed yoga and standard-speed yoga and to compare muscle activation of the transitions between poses and the held phases of a yoga pose. DESIGN: Randomized sequence crossover trial SETTING: A laboratory of neuromuscular research and active aging Interventions: Eight minutes of continuous Sun Salutation B was performed, at a high speed versus a standard-speed, separately. Electromyography was used to quantify normalized muscle activation patterns of eight upper and lower body muscles (pectoralis major, medial deltoids, lateral head of the triceps, middle fibers of the trapezius, vastus medialis, medial gastrocnemius, thoracic extensor spinae, and external obliques) during the high-speed and standard-speed yoga protocols...
February 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28129279/myoeletric-activity-of-the-quadriceps-during-leg-press-exercise-performed-with-differing-techniques
#17
Wallace Machado, Gabriel Paz, Leonardo Mendes, Marianna Maia, Jason B Winchester, Vicente Lima, Jeffrey M Willardson, Humberto Miranda
Machado, W, Paz, G, Mendes, L, Maia, M, Winchester, JB, Lima, V, Willardson, JM, and Miranda, H. Myoeletric activity of the quadriceps during leg press exercise performed with differing techniques. J Strength Cond Res 31(2): 422-429, 2017-The quadriceps muscle supplies the motive force for dynamic knee extension. During this action, the vastus medialis oblique (VMO) and vastus lateralis (VL) co-contract to stabilize the patella as it tracks within the patellofemoral groove. The purpose of this study was to analyze surface electromyographic (SEMG) responses for the VL, VMO, rectus femoris (RF), and biceps femoris (BF), as well as the VMO:VL ratio during an open-kinetic chain 45° angled leg press (LP45)...
February 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28027463/quantifying-knee-mechanics-during-balance-training-exercises
#18
Lauren C Benson, Thomas G Almonroeder, Kristian M O'Connor
Patellofemoral pain (PFP) is common among runners and those recovering from anterior cruciate ligament reconstruction. Training programs designed to prevent or treat injuries often include balance training, although balance interventions have been reported to coincide with more knee injuries. Knowledge of the effect of balance exercises on knee mechanics may be useful when designing training programs. High knee abduction moment has been implicated in the development of PFP, and imbalance between vastus lateralis (VL) and vastus medialis oblique (VMO) may contribute to patellofemoral stress...
January 2017: Human Movement Science
https://www.readbyqxmd.com/read/27846435/muscle-activation-patterns-of-the-lumbo-pelvic-hip-complex-during-walking-gait-before-and-after-exercise
#19
Mihyang Chang, Lindsay V Slater, Revay O Corbett, Joseph M Hart, Jay Hertel
The lumbo-pelvic-hip core complex consists of musculoskeletal structures that stabilize the spine and pelvis, however fatigue may affect muscle recruitment, active muscle stiffness and trunk kinematics, compromising trunk stability. The purpose of this study was to compare trunk muscle activation patterns, and trunk and lower extremity kinematics during walking gait before and after exercise. Surface electrodes were placed over the rectus abdominis, external oblique, erector spinae, gluteus medius, vastus lateralis, and vastus medialis of twenty-five healthy inidviduals...
February 2017: Gait & Posture
https://www.readbyqxmd.com/read/27826404/the-activation-pattern-of-trunk-and-lower-limb-muscles-in-an-electromyographic-assessment-comparison-between-ground-and-treadmill-walking
#20
Reza Mazaheri, Mohammad Ali Sanjari, Gelareh Radmehr, Farzin Halabchi, Hooman Angoorani
BACKGROUND: Due to biomechanical differences, various patterns of muscle contraction are expected to occur while walking over ground versus when walking on a treadmill. OBJECTIVES: This study aimed to compare amplitude and duration of activation of selected trunk and lower extremity muscles during over-ground and treadmill walking. MATERIALS AND METHODS: Through a simple sampling method, 19 sedentary healthy men within the age range of 20 - 40 were selected...
September 2016: Asian Journal of Sports Medicine
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