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Sagittal knee moment in knee osteoarthritis

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https://www.readbyqxmd.com/read/28072630/bracing-of-the-reconstructed-and-osteoarthritic-knee-during-high-dynamic-load-tasks
#1
Harvi F Hart, Kay M Crossley, Natalie J Collins, David C Ackland
PURPOSE: Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics are 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 years previously and had symptomatic and radiographic lateral knee osteoarthritis with valgus malalignment were assessed...
January 9, 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
#2
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
#3
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...
January 5, 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
#4
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...
October 24, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27729289/association-of-baseline-knee-sagittal-dynamic-joint-stiffness-during-gait-and-2-year-patellofemoral-cartilage-damage-worsening-in-knee-osteoarthritis
#5
A H Chang, J S Chmiel, O Almagor, A Guermazi, P V Prasad, K C Moisio, L Belisle, Y Zhang, K Hayes, L Sharma
OBJECTIVE: Knee sagittal dynamic joint stiffness (DJS) describes the biomechanical interaction between change in external knee flexion moment and flexion angular excursion during gait. In theory, greater DJS may particularly stress the patellofemoral (PF) compartment and thereby contribute to PF osteoarthritis (OA) worsening. We hypothesized that greater baseline knee sagittal DJS is associated with PF cartilage damage worsening 2 years later. METHODS: Participants all had OA in at least one knee...
February 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27509479/mild-leg-length-discrepancy-affects-lower-limbs-pelvis-and-trunk-biomechanics-of-individuals-with-knee-osteoarthritis-during-gait
#6
Renan A Resende, Renata N Kirkwood, Kevin J Deluzio, Amy M Morton, Sérgio T Fonseca
BACKGROUND: Leg length discrepancy greater than 1cm increases odds of progressive knee osteoarthritis in the shorter limb. METHODS: Biomechanical data of 15 knee osteoarthritis participants were collected while they walked under two conditions: (1) control - wearing thick sandals; (2) short limb - wearing a thin sandal on the osteoarthritic limb and a thick sandal on the contralateral limb. The thick and thin sandals had 1.45cm of thickness difference. The knee osteoarthritis limb was analyzed for both conditions...
October 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27188685/knee-kinematics-and-kinetics-are-associated-with-early-patellofemoral-osteoarthritis-following-anterior-cruciate-ligament-reconstruction
#7
A G Culvenor, L Perraton, A Guermazi, A L Bryant, T S Whitehead, H G Morris, K M Crossley
OBJECTIVE: Patellofemoral osteoarthritis (PFOA) commonly occurs following anterior cruciate ligament reconstruction (ACLR). Our study aimed to compare knee kinematics and kinetics during a hop-landing task between individuals with and without early PFOA post-ACLR. DESIGN: Forty-five individuals (mean ± SD 26 ± 5 years) 1-2 years post-ACLR underwent 3T isotropic MRI scans and 3D biomechanical assessment of a standardised forward hop task. Knee kinematics (initial contact, peak, excursion) in all three planes and sagittal plane kinetics (peak) were compared between 15 participants with early PFOA (MRI-defined patellofemoral cartilage lesion) and 30 participants with no PFOA (absence of patellofemoral cartilage lesion on MRI) using analysis of covariance (ANCOVA), adjusted for age, BMI, sex and the presence of early tibiofemoral OA...
September 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/26842310/immediate-effects-of-a-brace-on-gait-biomechanics-for-predominant-lateral-knee-osteoarthritis-and-valgus-malalignment-after-anterior-cruciate-ligament-reconstruction
#8
Harvi F Hart, Natalie J Collins, David C Ackland, Sallie M Cowan, Michael A Hunt, Kay M Crossley
BACKGROUND: Lateral knee osteoarthritis is notably common after anterior cruciate ligament reconstruction (ACLR). While valgus bracing has been investigated as an intervention for medial knee osteoarthritis (OA), little is known about the effectiveness of varus bracing for lateral knee OA after ACLR. PURPOSE: To determine the immediate effects of a varus unloader knee brace on gait biomechanics in people with lateral knee OA and valgus malalignment after ACLR. STUDY DESIGN: Controlled laboratory study...
April 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/26700568/the-effects-of-a-strength-and-neuromuscular-exercise-programme-for-the-lower-extremity-on-knee-load-pain-and-function-in-obese-children-and-adolescents-study-protocol-for-a-randomised-controlled-trial
#9
RANDOMIZED CONTROLLED TRIAL
Brian Horsak, David Artner, Arnold Baca, Barbara Pobatschnig, Susanne Greber-Platzer, Stefan Nehrer, Barbara Wondrasch
BACKGROUND: Childhood obesity is one of the most critical and accelerating health challenges throughout the world. It is a major risk factor for developing varus/valgus misalignments of the knee joint. The combination of misalignment at the knee and excess body mass may result in increased joint stresses and damage to articular cartilage. A training programme, which aims at developing a more neutral alignment of the trunk and lower limbs during movement tasks may be able to reduce knee loading during locomotion...
December 23, 2015: Trials
https://www.readbyqxmd.com/read/26669956/the-effect-of-masai-barefoot-technology-mbt-footwear-on-lower-limb-biomechanics-a-systematic-review
#10
REVIEW
Jade M Tan, Maria Auhl, Hylton B Menz, Pazit Levinger, Shannon E Munteanu
This systematic review evaluated the available evidence for the effects of Masai Barefoot Technology (MBT) footwear on lower limb biomechanics during gait. Electronic databases (MEDLINE, EMBASE, CINAHL, SPORTDiscus, and PubMed) were searched in January 2015. Methodological quality of included studies was evaluated using the Quality Index. Standardised mean differences and 95% confidence intervals were calculated, and meta-analysis was conducted where possible. 17 studies satisfied the inclusion criteria; 16 cross-sectional studies and one randomised control trial (RCT)...
January 2016: Gait & Posture
https://www.readbyqxmd.com/read/26667152/does-meniscal-pathology-alter-gait-knee-biomechanics-and-strength-post-acl-reconstruction
#11
Michelle Hall, Adam L Bryant, Tim V Wrigley, Clare Pratt, Kay M Crossley, Tim S Whitehead, Hayden G Morris, Ross A Clark, Luke G Perraton
PURPOSE: Individuals following anterior cruciate ligament reconstruction (ACLR) with concomitant meniscal pathology have a higher risk of developing knee osteoarthritis (OA) compared to those with isolated ACLR. Knee extensor weakness and altered dynamic knee joint biomechanics have been suggested to play a role in the development of knee OA following ACLR. This study investigated whether these factors differ in people following ACLR who have concomitant meniscal pathology compared to patients with isolated ACLR...
May 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/26317300/effects-of-workloads-and-cadences-on-frontal-plane-knee-biomechanics-in-cycling
#12
RANDOMIZED CONTROLLED TRIAL
Ying Fang, Eugene C Fitzhugh, Scott E Crouter, Jacob K Gardner, Songning Zhang
UNLABELLED: Although effects of workload and cadence on sagittal plane knee biomechanics in cycling have been widely studied, few studies have examined their impact on the frontal plane. PURPOSE: The purpose of this study was to investigate the effects of different workloads and cadences on knee sagittal and frontal plane biomechanics. METHODS: Eighteen healthy participants (age, 55.7 ± 11.0 yr) volunteered for this study. A motion analysis system and a custom instrumented pedal were used to collect five cycles of three-dimensional kinematics (240 Hz) and pedal reaction force (PRF, 1200 Hz) during 2 min of cycling in each of eight testing conditions, including five workload conditions of 0...
February 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/26265562/knee-kinematics-and-joint-moments-during-gait-following-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#13
Harvi F Hart, Adam G Culvenor, Natalie J Collins, David C Ackland, Sallie M Cowan, Zuzana Machotka, Kay M Crossley
BACKGROUND: Abnormal gait after anterior cruciate ligament reconstruction (ACLR) may contribute to development and/or progression of knee osteoarthritis. OBJECTIVE: To conduct a systematic review and meta-analysis of knee kinematics and joint moments during walking after ACLR. METHODS: We searched seven electronic databases and reference lists of relevant papers, for cross-sectional, human-based observational studies comparing knee joint kinematics and moments during level walking in individuals with ACLR, with the uninjured contralateral knee or healthy individuals as a control...
May 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/26101055/the-influence-of-task-complexity-on-knee-joint-kinetics-following-acl-reconstruction
#14
Megan J Schroeder, Chandramouli Krishnan, Yasin Y Dhaher
BACKGROUND: Previous research indicates that subjects with anterior cruciate ligament reconstruction exhibit abnormal knee joint movement patterns during functional activities like walking. While the sagittal plane mechanics have been studied extensively, less is known about the secondary planes, specifically with regard to more demanding tasks. This study explored the influence of task complexity on functional joint mechanics in the context of graft-specific surgeries. METHODS: In 25 participants (10 hamstring tendon graft, 6 patellar tendon graft, 9 matched controls), three-dimensional joint torques were calculated using a standard inverse dynamics approach during level walking and stair descent...
October 2015: Clinical Biomechanics
https://www.readbyqxmd.com/read/25886499/no-effects-of-a-12-week-supervised-exercise-therapy-program-on-gait-in-patients-with-mild-to-moderate-osteoarthritis-a-secondary-analysis-of-a-randomized-trial
#15
RANDOMIZED CONTROLLED TRIAL
Ingrid Eitzen, Linda Fernandes, Lars Nordsletten, May Arna Risberg
BACKGROUND: It is unknown whether gait biomechanics in hip osteoarthritis patients with mild to moderate symptoms change following exercise therapy interventions. The aim of the present study was to compare stance phase gait characteristics in hip osteoarthritis patients with mild to moderate symptoms participating in a randomized trial with two different interventions; patient education only or patient education followed by a 12-week supervised exercise therapy program. RESULTS: The study was conducted as a secondary analysis of a single-blinded randomized controlled trial...
March 5, 2015: Journal of Negative Results in Biomedicine
https://www.readbyqxmd.com/read/25830360/gait-characteristics-of-people-with-lateral-knee-osteoarthritis-after-acl-reconstruction
#16
Harvi F Hart, Natalie J Collins, David C Ackland, Sallie M Cowan, Kay M Crossley
PURPOSE: Lateral knee osteoarthritis (OA) is common after anterior cruciate ligament reconstruction (ACLR), yet gait characteristics associated with lateral knee OA after ACLR are not well understood. This cross-sectional study aimed to compare knee, trunk, pelvis, hip, and ankle kinematics and moments between people with predominant lateral knee OA after ACLR and healthy controls. METHODS: Nineteen post-ACLR people with lateral knee OA and 25 healthy controls were recruited...
November 2015: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/25795650/mid-to-long-term-clinical-outcome-and-gait-biomechanics-after-realignment-surgery-in-asymmetric-ankle-osteoarthritis
#17
Corina Nüesch, Cora Huber, Jochen Paul, Heath B Henninger, Geert Pagenstert, Victor Valderrabano, Alexej Barg
BACKGROUND: Joint-preserving, realignment surgical procedures have gained increasing popularity as treatment of asymmetric early- and mid-stage ankle osteoarthritis. The aim of the present study was to quantify bilateral gait biomechanics in patients who underwent ankle realignment surgery by supramalleolar osteotomies. METHODS: Eight patients, a minimum of 7 years after realignment surgery, and 8 healthy controls were included in this study. Three-dimensional instrumented gait analysis was used to assess spatiotemporal parameters, bilateral joint angles, and moments...
August 2015: Foot & Ankle International
https://www.readbyqxmd.com/read/25790977/long-term-data-of-gait-characteristics-and-moment-knee-angle-relations-in-female-total-knee-arthroplasty-patients
#18
Boris Ullrich, Jens Stening, Thiemo Pelzer, Jana Raab
BACKGROUND: Despite the clinical success of total knee arthroplasty, impaired gait patterns and quadriceps and hamstring maximal voluntary force production might persist years post-surgery. Long-term data of gait patterns and quadriceps and hamstring maximal force production are rarely published with total knee arthroplasty patients. This work examined gait characteristics and the moment-knee angle relations of the knee extensors and flexors about 10 years post-total knee arthroplasty...
June 2015: Clinical Biomechanics
https://www.readbyqxmd.com/read/25708360/three-dimensional-biomechanical-gait-characteristics-at-baseline-are-associated-with-progression-to-total-knee-arthroplasty
#19
Gillian L Hatfield, William D Stanish, Cheryl L Hubley-Kozey
OBJECTIVE: To determine if baseline 3-dimensional (3-D) biomechanical gait patterns differed between those patients with moderate knee osteoarthritis (OA) who progressed to total knee arthroplasty (TKA) and those that did not, and whether these differences had predictive value. METHODS: Fifty-four patients with knee OA had ground reaction forces and segment motions collected during gait. 3-D hip, knee, and ankle angles and moments were calculated over the gait cycle...
July 2015: Arthritis Care & Research
https://www.readbyqxmd.com/read/25683308/kinetics-features-changes-before-and-after-intra-articular-hyaluronic-acid-injections-in-patients-with-knee-osteoarthritis
#20
Alice Chu-Wen Tang, Simon Fuk-Tan Tang, Wei-Hsien Hong, Hsieh-Ching Chen
OBJECTIVES: To examine the kinetic features in patients with knee osteoarthritis (OA) after intra-articular hyaluronic acid (IAHA) injections in different time periods. DESIGN: A single group repeated measures study. SETTING: Gait laboratory in a tertiary hospital. PARTICIPANTS: Twenty-five subjects with bilateral symptomatic knee OA and 15 healthy control subjects. INTERVENTION: Gait analyses were performed in both control and OA groups before (baseline), and after the completion of IAHA injections (1 week, 3 months, and 6 months)...
February 2015: Clinical Neurology and Neurosurgery
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