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https://www.readbyqxmd.com/read/28209277/revision-arthroplasty-for-the-management-of-stiffness-after-primary-tka
#1
Joaquin Moya-Angeler, Marcel A Bas, H John Cooper, Matthew S Hepinstall, Jose A Rodriguez, Giles R Scuderi
BACKGROUND: The aim of this study was to evaluate the results of revision surgery for the treatment of stiffness after total knee arthroplasty (TKA). METHODS: An IRB-approved retrospective review was performed to identify patients who were revised due to stiffness after a primary TKA. Patients were included when at least one major component had to be revised due to stiffness after primary TKA with a minimum follow-up of 2 years. Patients with history of previous infection and those treated with isolated polyethylene exchange were excluded...
January 19, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28205264/the-influence-of-patellar-tendon-and-muscle-tendon-unit-stiffness-on-quadriceps-explosive-strength-in-man
#2
Garry J Massey, Thomas G Balshaw, Thomas M Maden-Wilkinson, Neale A Tillin, Jonathan P Folland
The influence of musculotendinous tissue stiffness on contractile rate of torque development (RTD) remains opaque. This study examined the relationships between both patellar tendon (PT) and vastus lateralis (VL) muscle-tendon unit (MTU) stiffness, and voluntary and evoked knee extension RTD. Fifty-two healthy untrained males completed duplicate laboratory sessions. Absolute and relative RTD was measured at 50 Nm/25%MVT increments from onset and sequentially during explosive voluntary and evoked octet (supramaximal stimulation: [8 pulses at 300 Hz]) isometric contractions...
February 15, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28196504/significant-pain-variability-in-persons-with-or-at-high-risk-of-knee-osteoarthritis-preliminary-investigation-based-on-secondary-analysis-of-cohort-data
#3
Emma Parry, Reuben Ogollah, George Peat
BACKGROUND: While knee osteoarthritis (OA) is characterised as a slowly progressive disease, acute flares, episodes of severe pain, and substantial fluctuations in pain intensity appear to be part of the natural history for some patients. We sought to estimate what proportion of symptomatic community-dwelling adults might be affected, and to identify patient and problem characteristics associated with higher risk of such variability in pain. METHODS: We analysed data collected at baseline, 18, 36, 54, and 72 month follow-up of a prospective cohort of symptomatic adults aged over 50 years with current/recent knee pain...
February 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28194525/low-dose-solumatrix-diclofenac-in-patients-with-osteoarthritis-pain-impact-on-quality-of-life-in-a-controlled-trial
#4
Vibeke Strand, Martin Bergman, Jasvinder A Singh, Allan Gibofsky, Alan Kivitz, Clarence Young
Low-dose SoluMatrix diclofenac was developed to provide effective pain relief for osteoarthritis pain. We evaluated the effects of SoluMatrix diclofenac on health-related quality of life (HRQoL) measures in patients with osteoarthritis, hypothesizing that SoluMatrix-treated patients would experience significant improvement compared with placebo. In this 12-week, phase 3 randomized controlled trial, 305 patients with osteoarthritis of the hip or knee received SoluMatrix diclofenac 35 mg three times (TID) or twice (BID) daily or placebo...
February 13, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28188084/biomechanical-evaluation-of-knee-endpoint-during-anterior-tibial-loading-implication-for-physical-exams
#5
Ata A Rahnemai-Azar, Fabio V Arilla, Kevin M Bell, Freddie H Fu, Volker Musahl, Richard E Debski
BACKGROUND: Physical exams that apply anterior tibial loads are typically used to evaluate knees with anterior cruciate ligament (ACL) injuries. The amount of anterior tibial translation that occurs during these exams can be difficult to assess due to a "soft" endpoint. Therefore, the objective of this study is to determine the biomechanical characteristics of the endpoint for the intact and ACL deficient knee using quantitative criteria. METHODS: Eight porcine knees were tested using a robotic testing system...
February 7, 2017: Knee
https://www.readbyqxmd.com/read/28182968/measuring-postural-control-during-mini-squat-posture-in-men-with-early-knee-osteoarthritis
#6
M Petrella, K Gramani-Say, P R M S Serrão, G C Lessi, J A Barela, R P Carvalho, S M Mattiello
Studies have suggested a compromised postural control in individuals with knee osteoarthritis (OA) evidenced by larger and faster displacement of center of pressure (COP). However, quantification of postural control in the mini-squat posture performed by patients with early knee OA and its relation to muscle strength and self-reported symptoms have not been investigated. The main aim of this cross-sectional, observational, controlled study was to determine whether postural control in the mini-squat posture differs between individuals with early knee OA and a control group (CG) and verify the relation among knee extensor torque (KET) and self-reported physical function, stiffness and pain...
February 6, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28178962/the-outcomes-of-the-modified-fulkerson-osteotomy-procedure-to-treat-habitual-patellar-dislocation-associated-with-high-grade-trochlear-dysplasia
#7
Hong Chen, Daohong Zhao, Jingming Xie, Qihui Duan, Jun Zhang, Zhidan Wu, Jia Jiang
BACKGROUND: Habitual patellar dislocation is not common in clinical practice, but it has a deep impact on the patient's lifestyle and movement. There has been no large case-control study on habitual patellar dislocation, and the management of it is still controversial. The aim of this study was to observe the efficacy of the modified Fulkerson procedure on patients with habitual patellar dislocation with high-grade trochlear dysplasia without trochleoplasty and to evaluate the results of this procedure...
February 8, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28168959/the-bending-stiffness-of-shoes-is-beneficial-to-running-energetics-if-it-does-not-disturb-the-natural-mtp-joint-flexion
#8
Keonyoung Oh, Sukyung Park
A local minimum for running energetics has been reported for a specific bending stiffness, implying that shoe stiffness assists in running propulsion. However, the determinant of the metabolic optimum remains unknown. Highly stiff shoes significantly increase the moment arm of the ground reaction force (GRF) and reduce the leverage effect of joint torque at ground push-off. Inspired by previous findings, we hypothesized that the restriction of the natural metatarsophalangeal (MTP) flexion caused by stiffened shoes and the corresponding joint torque changes may reduce the benefit of shoe bending stiffness to running energetics...
January 18, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28164052/treatment-of-stiff-elbow-in-young-patients-with-interpositional-arthroplasty-for-mobility-case-series
#9
R Sivakumar, V SomaSheker, Prahalad Kumar Shingi, T Vinoth, M Chidambaram
INTRODUCTION: The elbow is a complex joint involving many articulations and complex biomechanics come into play. Elbow motion is crucial to upper limb movement that loss of 50% of elbow function equals to loss of 80% of upper extremity global function. Restoring movement and stability is challenging to the surgeon while treating a stiff elbow. Unlike other arthroplasties of hip and knee, total elbow arthroplasty (TEA) may not be a primary treatment. Interpositional arthroplasty (IPA) can be considered a viable option in posttraumatic arthritis of elbow in young patients...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28158960/short-term-clinical-effects-of-dry-needling-combined-with-physical-therapy-in-patients-with-chronic-postsurgical-pain-following-total-knee-arthroplasty-case-series
#10
Rodrigo Núñez-Cortés, Carlos Cruz-Montecinos, Álvaro Vásquez Rosel, Orlando Paredes Molina, Antonio Cuesta-Vargas
Study Design Case series. Background The purpose of this case series is to describe a combined program of dry needling (DN) and therapeutic exercise in a small group of patients with persistent pain post total knee arthroplasty. Case Description Fourteen total knee arthroplasty patients with persistent post-surgical pain and myofascial trigger points non-responsive to treatment with conventional physical therapy or medications received dry needling treatment in combination with therapeutic exercises for four weeks...
February 3, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28144820/a-preclinical-numerical-assessment-of-a-polyetheretherketone-femoral-component-in-total-knee-arthroplasty-during-gait
#11
Lennert de Ruiter, Dennis Janssen, Adam Briscoe, Nico Verdonschot
BACKGROUND: Conventional total knee replacement designs show high success rates but in the long term, the stiff metal components may affect bone quality of the distal femur. In this study we introduce an all-polymer total knee replacement device containing a PEEK femoral component on an UHMWPE tibial implant and study its mechanical integrity, fixation, and stress shielding of the periprosthetic femur. METHODS: The implant was analysed in finite element simulations of level gait, adopted from the ISO 14243-1 standard...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28141914/exercise-for-hand-osteoarthritis
#12
REVIEW
Nina Østerås, Ingvild Kjeken, Geir Smedslund, Rikke H Moe, Barbara Slatkowsky-Christensen, Till Uhlig, Kåre Birger Hagen
BACKGROUND: Hand osteoarthritis (OA) is a prevalent joint disease that may lead to pain, stiffness and problems in performing hand-related activities of daily living. Currently, no cure for OA is known, and non-pharmacological modalities are recommended as first-line care. A positive effect of exercise in hip and knee OA has been documented, but the effect of exercise on hand OA remains uncertain. OBJECTIVES: To assess the benefits and harms of exercise compared with other interventions, including placebo or no intervention, in people with hand OA...
January 31, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28124108/the-infra-meniscal-fibers-of-the-anterolateral-ligament-are-stronger-and-stiffer-than-the-supra-meniscal-fibers-despite-similar-histological-characteristics
#13
Gillian Corbo, Madeleine Norris, Alan Getgood, Timothy A Burkhart
PURPOSE: The purpose of the current investigation was to characterize biomechanical differences between the supra- and infra-meniscal sections of the anterolateral ligament (ALL). We hypothesized that the supra-meniscal fibers of the ALL would be stronger and stiffer than the infra-meniscal fiber. METHODS: Nine cadaveric knee specimens [mean (SD) age = 79 (14.6) years] were dissected to identify the borders of the ALL while maintaining the anatomy of the lateral meniscus...
January 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28121996/the-effects-of-traditional-chinese-exercise-in-treating-knee-osteoarthritis-a-systematic-review-and-meta-analysis
#14
Yingjie Zhang, Lulu Huang, Youxin Su, Zhengxuan Zhan, Yanan Li, Xingquan Lai
BACKGROUND AND AIMS: Traditional Chinese exercise (TCE) includes a variety of exercise, which is being accepted by more and more people in the treatment of knee osteoarthritis (OA) from different countries. With the attendant, many clinical reports focus on it. Our meta-analysis aimed to systematically assess the effects of traditional Chinese exercise on pain, stiffness, physical function, quality of life, mental health and adverse events in people with knee osteoarthritis. METHODS: PubMed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), the Web of Science, and Chinese Biomedical Literature Database (CBM) were searched from the time of their inception through April 2016 and risk of bias was independently assessed by two authors...
2017: PloS One
https://www.readbyqxmd.com/read/28102160/assessment-of-selected-factors-influencing-the-development-of-stiffness-after-total-knee-arthroplasty
#15
Jakub Oberbek, Marek Synder
BACKGROUND: Surgical treatment of idiopathic degenerative disease of the knee joint with total arthroplasty is aimed at reducing concomitant pain and improving the limited range of motion. This paper aims to assess the influence of pain intensity and range of motion on the presence of knee joint stiffness after primary total arthroplasty. MATERIAL AND METHODS: 59 male and female patients were divided into two groups based on the presence (G1) or absence (G2) of stiffness in the operated knee joint at 3 months post-operatively...
October 28, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28101732/the-analysis-of-knee-joint-loading-during-drop-landing-from-different-heights-and-under-different-instruction-sets-in-healthy-males
#16
Dmitry Verniba, Jason D Vescovi, David A Hood, William H Gage
BACKGROUND: Mechanical loading during exercise has been shown to promote tissue remodeling. Safe and accessible exercise may be beneficial to populations at risk of diminished bone and joint health. We examined the effect of drop height and instruction on knee loading during a drop-landing task and proposed a task that makes use of drop heights that may be appropriate for rehabilitation purposes and functional in daily life to examine transient knee joint loads. METHODS: Twenty males (22...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28087412/pain-prediction-by-serum-biomarkers-of-bone-turnover-in-people-with-knee-osteoarthritis-an-observational-study-of-tracp5b-and-cathepsin-k-in-oa
#17
L N Nwosu, M Allen, L Wyatt, J L Huebner, V Chapman, D A Walsh, V B Kraus
OBJECTIVES: To investigate serum biomarkers, tartrate resistant acid phosphatase 5b (TRAcP5b) and cathepsin K (cath-K), indicative of osteoclastic bone resorption, and their relationship to pain and pain change in knee osteoarthritis (OA). METHODS: Sera and clinical data were collected from 129 people (97 with 3-year follow-up) with knee OA from the Prediction of Osteoarthritis Progression (POP) cohort. Knee OA-related outcomes in POP included: WOMAC pain, National Health and Nutrition Examination Survey (NHANES) I (pain, aching and stiffness), subchondral sclerosis, and radiographically determined tibiofemoral and patellofemoral OA...
January 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28072630/bracing-of-the-reconstructed-and-osteoarthritic-knee-during-high-dynamic-load-tasks
#18
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/28056936/a-12-week-randomized-double-blind-placebo-controlled-multicenter-study-of-choline-stabilized-orthosilicic-acid-in-patients-with-symptomatic-knee-osteoarthritis
#19
Piet Geusens, Karel Pavelka, Jozef Rovensky, Johan Vanhoof, Nathalie Demeester, Mario Calomme, Dirk Vanden Berghe
BACKGROUND: The aim of this study was to assess the efficacy of choline-stabilized orthosilicic acid (ch-OSA) in patients with symptomatic knee osteoarthritis (OA). METHODS: In a multicenter, double-blind, placebo-controlled study, 211 patients with knee OA (Kellgren and Lawrence grade II or III) and moderate to moderately severe pain were randomly allocated to ch-OSA or placebo for 12 weeks. The primary outcome was the change in the WOMAC pain subscale from baseline to week 12...
January 5, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28051342/effects-of-thermal-agent-and-physical-activity-on-muscle-tendon-stiffness-and-effects-combined-with-static-stretching
#20
Kosuke Fujita, Masatoshi Nakamura, Hiroki Umegaki, Takuya Kobayashi, Satoru Nishishita, Hiroki Tanaka, Satoko Ibuki, Noriaki Ichihashi
CONTEXT: A recent review or article reported that thermal agents (TA) or physical activity (PA) can increase range of motion (ROM), and that the combination of TA with stretching is superior to performing stretching only. However, since ROM is affected by the participants' psychological factors, it is questionable whether these studies measured the effect of these intervention on muscle flexibility. By measuring muscle stiffness, we attempted to evaluate the effect these intervention on muscle flexibility...
January 4, 2017: Journal of Sport Rehabilitation
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