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Sagittal knee moment in knee osteoarthritis

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https://www.readbyqxmd.com/read/29234863/gait-analysis-in-short-term-follow-up-of-medial-opening-wedge-high-tibial-osteotomy
#1
Hésojy Gley Pereira Vital da Silva, Alessandro Rozim Zorzi, Heglayne Pereira Vital da Silva, João Batista de Miranda
BACKGROUND: Biomechanical gait changes are proposed as adaptations to medial knee osteoarthritis (OA), and little is known about which parameters can be modified early by high tibial osteotomy (HTO) surgery. The aim of this study was to identify early gait changes in a postoperative period of 6 months as compared to a control group, in three different spatial planes. METHODS: Twenty-one patients with OA were submitted to three-dimensional gait analysis preoperatively and 6 months after HTO surgery...
December 12, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29139573/gait-patterns-symptoms-and-function-in-patients-with-isolated-tibiofemoral-osteoarthritis-and-combined-tibiofemoral-and-patellofemoral-osteoarthritis
#2
Harvi F Hart, Kay M Crossley, Michael A Hunt
The purpose of this study was to compare hip and knee biomechanics during walking in individuals with isolated TFOA, combined TFOA and PFOA, and those without knee OA, and to compare patient-reported symptoms and function in individuals with isolated TFOA and those with combined TFOA and PFOA. Participants with and without knee OA were assessed and categorized into (i) no OA, (ii) isolated TFOA, and (iii) combined TFOA and PFOA, based on Kellgren and Lawrence diagnostic criteria. Quantitative motion analyses were conducted during walking, and hip and knee kinematics and external moments were calculated...
November 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29028621/combining-valgus-knee-brace-and-lateral-foot-wedges-reduces-external-forces-and-moments-in-osteoarthritis-patients
#3
Amir Ali Jafarnezhadgero, Anderson S Oliveira, Seyed Hamed Mousavi, Morteza Madadi-Shad
Osteoarthritis progression can be related to the external knee adduction and flexion moments during walking. Lateral foot wedges and knee braces have been used as treatment for osteoarthritis, but little is known about their influence on knee joint moments generated in the sagittal and frontal planes. Therefore, the aim of the present study was determine the effects of the isolated and combined use of valgus knee brace and lateral wedge foot orthotic on peak forces and moments during gait in knee osteoarthritis patients...
October 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28987873/hip-joint-biomechanics-in-those-with-and-without-post-traumatic-knee-osteoarthritis-after-anterior-cruciate-ligament-injury
#4
E Wellsandt, J A Zeni, M J Axe, L Snyder-Mackler
BACKGROUND: Anterior cruciate ligament injury results in altered kinematics and kinetics in the knee and hip joints that persist despite surgical reconstruction and rehabilitation. Abnormal movement patterns and a history of osteoarthritis are risk factors for articular cartilage degeneration in additional joints. The purpose of this study was to determine if hip joint biomechanics early after anterior cruciate ligament injury and reconstruction differ between patients with and without post-traumatic knee osteoarthritis 5years after reconstruction...
December 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28970124/effects-of-toe-in-and-toe-in-with-wider-step-width-on-level-walking-knee-biomechanics-in-varus-valgus-and-neutral-knee-alignments
#5
Hunter J Bennett, Guangping Shen, Harold E Cates, Songning Zhang
BACKGROUND: Increased peak external knee adduction moments exist for individuals with knee osteoarthritis and varus knee alignments, compared to healthy and neutrally aligned counterparts. Walking with increased toe-in or increased step width have been individually utilized to successfully reduce 1st and 2nd peak knee adduction moments, respectfully, but have not previously been combined or tested among all alignment groups. The purpose of this study was to compare toe-in only and toe-in with wider step width gait modifications in individuals with neutral, valgus, and varus alignments...
September 29, 2017: Knee
https://www.readbyqxmd.com/read/28898105/gait-characteristics-associated-with-a-greater-increase-in-medial-knee-cartilage-t1%C3%AF-and-t2-relaxation-times-in-patients-undergoing-anterior-cruciate-ligament-reconstruction
#6
Hsiang-Ling Teng, Daniel Wu, Favian Su, Valentina Pedoia, Richard B Souza, C Benjamin Ma, Xiaojuan Li
BACKGROUND: Osteoarthritis of the medial tibiofemoral joint (MTFJ) is prevalent among patients undergoing anterior cruciate ligament reconstruction (ACLR). Magnetic resonance T1ρ and T2 relaxation times provide noninvasive methods to quantify early cartilage degeneration. Altered sagittal-plane gait biomechanics have been observed after ACLR, but their associations with longitudinal changes in MTFJ cartilage T1ρ and T2 remain unclear. Hypothesis/Purpose: To examine whether the peak knee flexion moment (KFM), knee flexion angle (KFA), and vertical ground-reaction force (vGRF) during gait are associated with prospective changes in medial tibiofemoral cartilage T1ρ and T2 in ACL-reconstructed knees and to compare these gait characteristics between patients undergoing ACLR and healthy control participants...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28888109/biomechanical-compensations-of-the-trunk-and-lower-extremities-during-stepping-tasks-after-unilateral-transtibial-amputation
#7
Amanda M Murray, Brecca M Gaffney, Bradley S Davidson, Cory L Christiansen
BACKGROUND: Lower extremity movement compensations following transtibial amputation are well-documented and are likely influenced by trunk posture and movement. However, the biomechanical compensations of the trunk and lower extremities, especially during high-demand tasks such as step ascent and descent, remain unclear. METHODS: Kinematic and kinetic data were collected during step ascent and descent tasks for three groups of individuals: diabetic/transtibial amputation, diabetic, and healthy...
August 30, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28754420/identifying-changes-in-gait-waveforms-following-a-strengthening-intervention-for-women-with-knee-osteoarthritis-using-principal-components-analysis
#8
Elora C Brenneman, Monica R Maly
Lower limb strengthening exercise is pivotal for the management of symptoms related to knee osteoarthritis (OA). Though improvement in clinical symptoms is well documented, concurrent changes in gait biomechanics are ill-defined. This may occur because discrete analyses miss changes following an intervention, analyses limited to the knee undermine potential mechanical trade-offs at other joints, or strengthening interventions not been designed based on biomechanical principles. The purpose of this study was to characterize differences in entire gait waveforms for sagittal plane ankle, knee, and hip angles and external moments; the knee adduction moment; and frontal plane hip angle and moment following 12-weeks of a previously designed novel lower limb strengthening program...
July 11, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28672154/gait-adaptations-with-aging-in-healthy-participants-and-people-with-knee-joint-osteoarthritis
#9
Lynsey D Duffell, Stevan J Jordan, Justin P Cobb, Alison H McGregor
The relationship between age and gait characteristics in people with and without medial compartment osteoarthritis (OA) remains unclear. We aimed to characterize this relationship and to relate biomechanical and structural parameters in a subset of OA patients. Twenty five participants with diagnosed unilateral medial knee OA and 84 healthy participants, with no known knee pathology were recruited. 3D motion capture was used to analyse sagittal and coronal plane gait parameters while participants walked at a comfortable speed...
June 21, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28653865/sagittal-plane-knee-moment-during-gait-and-knee-cartilage-thickness
#10
Randy J Schmitz, David Harrison, Hsin-Min Wang, Sandra J Shultz
CONTEXT:   Understanding the factors associated with thicker cartilage in a healthy population is important when developing strategies aimed at minimizing the cartilage thinning associated with knee osteoarthritis progression. Thicker articular cartilage is commonly thought to be healthier cartilage, but whether the sagittal-plane biomechanics important to gait are related to cartilage thickness is unknown. OBJECTIVE:   To determine the relationship of a weight-bearing region of the medial femoral condyle's cartilage thickness to sagittal gait biomechanics in healthy individuals...
June 2, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28644677/young-athletes-after-anterior-cruciate-ligament-reconstruction-with-single-leg-landing-asymmetries-at-the-time-of-return-to-sport-demonstrate-decreased-knee-function-2-years-later
#11
Matthew P Ithurburn, Mark V Paterno, Kevin R Ford, Timothy E Hewett, Laura C Schmitt
BACKGROUND: Previous work shows that young athletes after anterior cruciate ligament reconstruction (ACLR) demonstrate single-leg (SL) landing movement asymmetries at the time of return to sport (RTS); however, the effect of movement asymmetries on longitudinal knee-related function after ACLR has not been examined. Hypothesis/Purpose: The purpose of this study was to examine the effect of SL drop-landing movement symmetry at the time of RTS on knee-related function 2 years later in young athletes after ACLR...
September 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28458186/dual-belt-treadmill-familiarization-implications-for-knee-function-in-moderate-knee-osteoarthritis-compared-to-asymptomatic-controls
#12
Derek Rutherford, Matthew Baker, Ivan Wong, William Stanish
BACKGROUND: Effect of treadmill familiarization on knee function in osteoarthritis is not clear. Purpose was to determine whether spatiotemporal characteristics, knee joint biomechanics and muscle activation patterns change as individuals with and without medial compartment knee osteoarthritis familiarize to dual-belt treadmill walking over 6min. METHODS: 20 individuals with knee osteoarthritis and 20 asymptomatic controls walked at a self-selected speed. Spatiotemporal characteristics, sagittal plane joint motions, sagittal and frontal plane moments and knee joint muscle activation patterns, amplitude normalized to maximum isometric contractions were analyzed...
June 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28411486/the-effect-of-age-and-knee-osteoarthritis-on-muscle-activation-patterns-and-knee-joint-biomechanics-during-dual-belt-treadmill-gait
#13
Derek Rutherford, Matthew Baker, Ivan Wong, William Stanish
PURPOSE: To compare a group of individuals with moderate medial compartment knee osteoarthritis (OA) to both an age-matched asymptomatic group of older adults and younger adults to determine whether differences in knee joint muscle activation patterns and joint biomechanics exist during gait between these three groups. SCOPE: 20 young adults, 20 older adults, and 40 individuals with moderate knee OA were recruited. Using standardized procedures, surface electromyograms were recorded from the vastus lateralis and medialis, rectus femoris and the medial and lateral hamstrings...
April 7, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28327133/improved-knee-biomechanics-among-patients-reporting-a-good-outcome-in-knee-related-quality-of-life-one-year-after-total-knee-arthroplasty
#14
Josefine E Naili, Per Wretenberg, Viktor Lindgren, Maura D Iversen, Margareta Hedström, Eva W Broström
BACKGROUND: It is not well understood why one in five patients report poor outcomes following knee arthroplasty. This study evaluated changes in knee biomechanics, and perceived pain among patients reporting either a good or a poor outcome in knee-related quality of life after total knee arthroplasty. METHODS: Twenty-eight patients (mean age 66 (SD 7) years) were included in this prospective study. Within one month of knee arthroplasty and one year after surgery, patients underwent three-dimensional (3D) gait analysis, completed the Knee Injury and Osteoarthritis Outcome Score (KOOS), and rated perceived pain using a visual analogue scale...
March 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28301825/combined-versus-individual-effects-of-a-valgus-knee-brace-and-lateral-wedge-foot-orthotic-during-stair-use-in-patients-with-knee-osteoarthritis
#15
Rebecca Moyer, Trevor Birmingham, Colin Dombroski, Robert Walsh, J Robert Giffin
The aim of this study was to investigate the combined and individual biomechanical effects of a valgus knee brace and a lateral wedge foot orthotic during stair ascent and descent in patients with knee osteoarthritis (OA). Thirty-five patients with varus alignment and medial knee OA were prescribed a custom valgus knee brace and lateral wedge foot orthotic. Knee angles and moments in the frontal and sagittal planes were determined from 3D gait analysis completed under four randomized conditions: (1) control (no knee brace or foot orthotic), (2) knee brace, (3) foot orthotic, and (4) combined knee brace and foot orthotic...
March 1, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28224442/report-of-the-primary-outcomes-for-gait-mechanics-in-men-of-the-acl-sports-trial-secondary-prevention-with-and-without-perturbation-training-does-not-restore-gait-symmetry-in-men-1-or-2-years-after-acl-reconstruction
#16
Jacob John Capin, Ryan Zarzycki, Amelia Arundale, Kathleen Cummer, Lynn Snyder-Mackler
BACKGROUND: Movement asymmetries during walking are common after anterior cruciate ligament (ACL) injury and reconstruction and may influence the early development of posttraumatic osteoarthritis. Preoperative neuromuscular training (like perturbation training, which is neuromuscular training requiring selective muscle activation in response to surface perturbations) improves gait asymmetries and functional outcomes among people who are ACL-deficient, but the effect of postoperative perturbation training on gait mechanics after ACL reconstruction is unknown...
October 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28072630/bracing-of-the-reconstructed-and-osteoarthritic-knee-during-high-dynamic-load-tasks
#17
Harvi F Hart, Kay M Crossley, Natalie J Collins, David C Ackland
PURPOSE: Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics is frequently reported in individuals with knee osteoarthritis after anterior cruciate ligament reconstruction (ACLR). The aim of this study was to evaluate changes in knee biomechanics produced by an adjusted and unadjusted varus knee brace during high dynamic loading activities in individuals with lateral knee osteoarthritis after ACLR and valgus malalignment. METHODS: Nineteen participants who had undergone ACLR 5 to 20 yr previously and had symptomatic and radiographic lateral knee osteoarthritis with valgus malalignment were assessed...
June 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28068837/immediate-effects-of-acupuncture-treatment-on-intra-and-inter-limb-contributions-to-body-support-during-gait-in-patients-with-bilateral-medial-knee-osteoarthritis
#18
Yen-Hung Liu, I-Pin Wei, Ting-Ming Wang, Tung-Wu Lu, Jaung-Geng Lin
Knee osteoarthritis (OA) often leads to altered balance control, joint motion and loading patterns during gait. Acupuncture has been proven to be effective in pain relief but its effects on inter-joint load-sharing for body balance have not been reported. The current study bridged the gap by quantifying the immediate effects of acupuncture on the inter-joint and inter-limb load-sharing in patients with knee OA during level walking in terms of the total support moment (Ms) and the contribution of individual joints to the total support moment...
2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28064033/altered-gait-mechanics-and-elevated-serum-pro-inflammatory-cytokines-in-asymptomatic-patients-with-mri-evidence-of-knee-cartilage-loss
#19
S N Edd, J Favre, K Blazek, P Omoumi, J L Asay, T P Andriacchi
OBJECTIVE: To test if sagittal plane gait mechanics parameters and serum inflammation levels differ between healthy asymptomatic subjects and asymptomatic subjects with magnetic resonance imaging (MRI) evidence of cartilage loss. DESIGN: Gait mechanics and resting serum tumor necrosis factor-α (TNFα) concentrations were measured for two groups of asymptomatic subjects recruited for a previous study: Pre-Osteoarthritis (OA) subjects had MRI evidence of partial- or full-thickness knee cartilage loss in at least one compartment (n = 52 (30 female), 1...
June 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27775183/asymptomatic-and-symptomatic-individuals-with-the-same-radiographic-evidence-of-knee-osteoarthritis-walk-with-different-knee-moments-and-muscle-activity
#20
Janie L Astephen Wilson, William D Stanish, Cheryl L Hubley-Kozey
There is an established discordance between the structural joint damage and clinical symptoms of knee osteoarthritis; however, there has been little investigation into the differences in joint level biomechanics and muscle activation patterns during gait between symptomatic and asymptomatic individuals with the same radiographic evidence of osteoarthritis. The objective of this study was to examine three-dimensional knee joint biomechanics and muscle activation differences during gait between asymptomatic and symptomatic individuals with radiographic knee osteoarthritis...
August 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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