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https://www.readbyqxmd.com/read/28527386/gait-patterns-of-children-and-adolescents-with-charcot-marie-tooth-disease
#1
Elizabeth Wojciechowski, Amy Sman, Kayla Cornett, Jacqueline Raymond, Kathryn Refshauge, Manoj P Menezes, Joshua Burns
Gait abnormalities reported in childhood Charcot-Marie-Tooth disease (CMT) include foot-drop, reduced ankle power at push-off and increased knee and hip flexion for swing clearance ('steppage-gait'). The purpose of this study was to describe the gait patterns of 60 children aged 6-17 years with CMT (CMTall) and distinguish differences based on functional weakness using the CMT Pediatric Scale (CMTPedS). Data were captured using Vicon Nexus system and compared to 50 healthy norms. Data were subdivided into three groups denoting increasing severity of dorsiflexion and plantarflexion weakness from the CMTPedS: no difficulty heel or toe walking (CMTND), difficulty heel walking (CMTDH), difficulty toe and heel walking (CMTDTH)...
May 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28525667/functional-results-in-periacetabular-osteotomy-is-it-possible-to-obtain-a-normal-gait-after-the-surgery
#2
Aydın Gahramanov, Fatma İnanıcı, Ömür Çağlar, Cemalettin Aksoy, Ahmet Mazhar Tokgözoğlu, Senem Güner, Aysun Baki, Bülent Atilla
INTRODUCTION: Gait analysis is one of the poorly understood dimensions of the functional results obtained after periacetabular osteotomy (PAO) due to dysplasia of the hip. MATERIALS AND METHODS: Spatiotemporal parameters as well as coronal and sagittal plane kinematics and moments were compared among three demographically similar groups of subjects: (i) 23 patients with excellent results according to the Harris Hip Score (HHS) (mean 6.6 years of follow-up); (ii) 12 patients with good and fair results according to the HHS (mean 9...
May 19, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28525408/rebound-deformity-after-growth-modulation-in-patients-with-coronal-plane-angular-deformities-about-the-knee-who-gets-it-and-how-much
#3
Lise A Leveille, Ozan Razi, Charles E Johnston
BACKGROUND: With observed success and increased popularity of growth modulation techniques, there has been a trend toward use in progressively younger patients. Younger age at growth modulation increases the likelihood of complete deformity correction and need for implant removal before skeletal maturity introducing the risk of rebound deformity. The purpose of this study was to quantify magnitude and identify risk factors for rebound deformity after growth modulation. METHODS: We performed a retrospective review of all patients undergoing growth modulation with a tension band plate for coronal plane deformity about the knee with subsequent implant removal...
May 18, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28524751/pseudogout-of-the-cervical-and-thoracic-spine-mimicking-infection-after-lumbar-fusion-case-report
#4
Kelly J Bridges, Carli L Bullis, Ajay Wanchu, Khoi D Than
Pseudogout is a form of acute calcium pyrophosphate deposition (CPPD) disease that typically afflicts the elderly. CPPD commonly involves larger joints, such as the knees, wrists, shoulders, and hips, and has been known to involve the spine. The authors report the case of a 66-year-old woman with a recent history of lumbar laminectomy and fusion who presented 5 weeks postprocedure with a clinical and radiographic picture consistent with multilevel skip lesions involving the cervical and thoracic spine, thoracic discitis, and epidural abscess...
May 19, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28520679/knee-recurvatum-in-children-with-spastic-diplegic-cerebral-palsy
#5
Jeremy Bauer, K Patrick Do, Jing Feng, Rosemary Pierce, Michael Aiona
BACKGROUND: The purpose of this study is to determine which factors drive patients with diplegic cerebral palsy to walk without knee recurvatum despite hyperextension of the knee on physical examination. METHODS: A retrospective review was conducted of all data collected in the Gait Analysis Laboratory between 1999 and 2014. Patients with spastic diplegic cerebral palsy and at least 5 degrees of knee extension on clinical examination were identified for the study...
May 17, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28515970/two-dimensional-video-analysis-is-comparable-to-3d-motion-capture-in-lower-extremity-movement-assessment
#6
Stacy A Schurr, Ashley N Marshall, Jacob E Resch, Susan A Saliba
BACKGROUND: Although 3D motion capture is considered the "gold standard" for recording and analyzing kinematics, 2D video analysis may be a more reasonable, inexpensive, and portable option for kinematic assessment during pre-participation screenings. Few studies have compared quantitative measurements of lower extremity functional tasks between 2D and 3D. PURPOSE: To compare kinematic measurements of the trunk and lower extremity in the frontal and sagittal planes between 2D video camera and 3D motion capture analyses obtained concurrently during a SLS...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28512726/cutaneous-reflex-modulation-during-obstacle-avoidance-under-conditions-of-normal-and-degraded-visual-input
#7
Daniel S Marigold, Andrew J Chang, Kim Lajoie
The nervous system integrates visual input regarding obstacles with limb-based sensory feedback to allow an individual to safely negotiate the environment. This latter source can include cutaneous information from the foot, particularly in the event that limb trajectory is not sufficient and there is an unintended collision with the object. However, it is not clear the extent to which cutaneous reflexes are modified based on visual input. In this study, we first determined if phase-dependent modulation of these reflexes is present when stepping over an obstacle during overground walking...
May 16, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28511650/pain-pain-intensity-and-pain-disability-in-high-school-students-are-differently-associated-with-physical-activity-screening-hours-and-sleep
#8
Anabela G Silva, Pedro Sa-Couto, Alexandra Queirós, Maritza Neto, Nelson P Rocha
BACKGROUND: Studies exploring the association between physical activity, screen time and sleep and pain usually focus on a limited number of painful body sites. Nevertheless, pain at different body sites is likely to be of different nature. Therefore, this study aims to explore and compare the association between time spent in self-reported physical activity, in screen based activities and sleeping and i) pain presence in the last 7-days for 9 different body sites; ii) pain intensity at 9 different body sites and iii) global disability...
May 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28506843/longitudinal-association-between-foot-and-ankle-symptoms-and-worsening-of-symptomatic-radiographic-knee-osteoarthritis-data-from-the-osteoarthritis-initiative
#9
Kade L Paterson, Jessica Kasza, David J Hunter, Rana S Hinman, Hylton B Menz, George Peat, Kim L Bennell
OBJECTIVE: To assess whether foot and/or ankle symptoms are associated with an increased risk of worsening of knee pain and radiographic change in people with knee osteoarthritis (OA). METHODS: The presence and laterality of foot/ankle symptoms were recorded at baseline in 1368 participants from the Osteoarthritis Initiative with symptomatic radiographic knee OA. Knee pain severity (measured using the Western Ontario and McMaster Universities Osteoarthritis Index pain subscale) and minimum medial tibiofemoral joint space (minJSW) width measured on x-ray were assessed yearly over the subsequent four years...
May 12, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28505990/the-features-of-gait-exercise-assist-robot-precise-assist-control-and-enriched-feedback
#10
Satoshi Hirano, Eiichi Saitoh, Shigeo Tanabe, Hiroki Tanikawa, Shinya Sasaki, Daisuke Kato, Hitoshi Kagaya, Norihide Itoh, Hitoshi Konosu
BACKGROUND: In a patient with severe hemiplegia, the risk of the knee giving way is high during the early stage of gait exercise with an ankle-foot orthosis. However, use of a knee-ankle-foot orthosis has many problems such as large amount of assistance and compensatory motions. To resolve these problems, we have engaged in the development of the Gait Exercise Assist Robot (GEAR). OBJECTIVE: To evaluate the improvement efficiency of walk with GEAR in a stroke patient...
May 11, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28505006/myopericytomatosis-clinicopathologic-analysis-of-11-cases-with-molecular-identification-of-recurrent-pdgfrb-alterations-in-myopericytomatosis-and-myopericytoma
#11
Yin P Hung, Christopher D M Fletcher
Myopericytoma is a benign tumor of concentrically distributed perivascular myoid cells. Its molecular basis and relationship with myofibroma/myofibromatosis and other pericytic tumors are not fully understood. In our consultation/surgical files of over 1000 myopericytic lesions, we identified 11 cases with diffuse dermal/subcutaneous involvement by microscopic myopericytomatous nodules, a phenomenon we have termed myopericytomatosis. Myopericytomatosis affected mostly adults (female:male=8:3; median age, 37 y; range, 9 to 63 y) in the lower extremities (foot/ankle, 5; calf, 3; knee, 1; thigh, 1; neck, 1) over months to 25 years, ranging from 1...
May 12, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28502348/osteolysis-in-total-ankle-replacement-how-does-it-work
#12
REVIEW
Norman Espinosa, Georg Klammer, Stephan H Wirth
Aseptic loosening of implants remains the most common reason for revision surgery for hip, knee, or ankle prostheses. Although a great scientific effort has been made to explain the underlying mechanisms it remains poorly understood, complex, and multifactorial. Many factors, including age, body weight, activity lesions, implant design, fixation methods, material proprieties, immunologic responses, and biomechanical adaptations to total ankle replacement all contribute to the development of periprosthetic osteolysis...
June 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28502346/kinematics-and-function-of-total-ankle-replacements-versus-normal-ankles
#13
REVIEW
Justin M Kane, Scott Coleman, James W Brodsky
End-stage ankle arthritis produces severe functional disability, quantifiable by gait abnormalities. In all categories of gait parameters, total ankle arthroplasty (TAA) satistically significantly improves function, compared to patients' preoperative function. There are increases in step length, cadence and velocity; in sagittal plane motion of the ankle, as well has hip and knee motion, and in ankle power and moment. These functional gait improvements correspond to clinical improvements of pain relief and satisfaction...
June 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28501732/asymmetrical-stabilization-and-mobilization-exploited-during-static-single-leg-stance-and-goal-directed-kicking
#14
Adam C King, Zheng Wang
The motor control properties of the right and left legs are dependent on the stabilization and mobilization features of the motor tasks. The current investigation examined the right and left leg control differences - interlateral asymmetries - during static single leg stance and dynamic goal directed kicking with an emphasis of the asymmetrical stabilization and mobilization components of movements. Ten young, healthy, right-leg preferred individuals with minimal kicking experience completed both tests on each limb...
May 11, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28501342/speed-age-sex-and-body-mass-index-provide-a-rigorous-basis-for-comparing-the-kinematic-and-kinetic-profiles-of-the-lower-extremity-during-walking
#15
E F Chehab, T P Andriacchi, J Favre
The increased use of gait analysis has raised the need for a better understanding of how walking speed and demographic variations influence asymptomatic gait. Previous analyses mainly reported relationships between subsets of gait features and demographic measures, rendering it difficult to assess whether gait features are affected by walking speed or other demographic measures. The purpose of this study was to conduct a comprehensive analysis of the kinematic and kinetic profiles during ambulation that tests for the effect of walking speed in parallel to the effects of age, sex, and body mass index...
April 20, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28500910/ankle-strength-impairments-associated-with-knee-osteoarthritis
#16
Glaucia Helena Gonçalves, Francisco Alburquerque Sendín, Paula Regina Mendes da Silva Serrão, Luiz Fernando Approbato Selistre, Marina Petrella, Cristiano Carvalho, Stela Márcia Mattiello
BACKGROUND: Knee Osteoarthritis seems to negatively impact ankle biomechanics. However, the effect of knee osteoarthritis on ankle muscle strength has not been clearly established. This study aimed to evaluate the ankle strength of the plantar flexors and dorsiflexors of patients with knee osteoarthritis in different degrees of severity. METHODS: Thirty-seven patients with knee osteoarthritis and 15 controls, subjected to clinical and radiographic analysis, were divided into three groups: control, mild, and moderate knee osteoarthritis...
May 4, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28499954/systematic-review-and-meta-analysis-of-gait-mechanics-in-young-and-older-adults
#17
Katherine A Boyer, Russell T Johnson, Jacob J Banks, Carl Jewell, Jocelyn F Hafer
BACKGROUND: Age-related gait changes may play a critical role in functional limitations of older adults. Despite sizable interest in determining how age alters walking mechanics, small sample sizes and varied outcome measures have precluded a comprehensive understanding of the impact of age on lower extremity joint kinematics and kinetics. OBJECTIVE: The aim of this study was to perform a systematic review and meta-analysis of the aging gait mechanics literature...
May 9, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28499159/sensitivity-of-biomechanical-outcomes-to-independent-variations-of-hindfoot-and-forefoot-stiffness-in-foot-prostheses
#18
Peter Gabriel Adamczyk, Michelle Roland, Michael E Hahn
Many studies have reported the effects of different foot prostheses on gait, but most results cannot be generalized because the prostheses' properties are seldom reported. We varied hindfoot and forefoot stiffness in an experimental foot prosthesis, in increments of 15N/mm, and tested the parametric effects of these variations on treadmill walking in unilateral transtibial amputees, at speeds from 0.7 to 1.5m/s. We computed outcomes such as prosthesis energy return, center of mass (COM) mechanics, ground reaction forces, and joint mechanics, and computed their sensitivity to component stiffness...
May 9, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28494322/constituent-lower-extremity-work-clew-approach-a-novel-tool-to-visualize-joint-and-segment-work
#19
Anahid Ebrahimi, Saryn R Goldberg, Jason M Wilken, Steven J Stanhope
Work can reveal the mechanism by which movements occur. However, work is less physically intuitive than more common clinical variables such as joint angles, and are scalar quantities which do not have a direction. Therefore, there is a need for a clearly reported and comprehensively calculated approach to easily visualize and facilitate the interpretation of work variables in a clinical setting. We propose the Constituent Lower Extremity Work (CLEW) approach, a general methodology to visualize and interpret cyclic tasks performed by the lower limbs...
April 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28492695/joint-assessment-in-von-willebrand-disease-validation-of-the-haemophilia-joint-health-score-and-haemophilia-activities-list
#20
Karin P M van Galen, Merel A Timmer, Piet de Kleijn, Kathelijn Fischer, Wouter Foppen, Roger E G Schutgens, Jeroen Eikenboom, Karina Meijer, Marjon H Cnossen, Karin Fijnvandraat, Johanna G van der Bom, Britta A P Laros-van Gorkom, Frank W G Leebeek, Eveline P Mauser-Bunschoten
Assessment of clinical outcome after joint bleeding is essential to identify joint damage and optimise treatment, to prevent disability. However, disease-specific tools to assess the musculoskeletal status in patients with von Willebrand disease (VWD) are lacking. We aimed to determine validity and reliability of the Haemophilia Joint Health Score (HJHS) and Haemophilia Activities List (HAL) in patients with Von Willebrand disease (VWD). Ninety-six patients with VWD were included (mean age 46 years) of whom 27 had more than five documented joint bleeds...
May 11, 2017: Thrombosis and Haemostasis
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