keyword
MENU ▼
Read by QxMD icon Read
search

Knee joint loading in knee osteoarthritis

keyword
https://www.readbyqxmd.com/read/28822943/sound-side-joint-contact-forces-in-below-knee-amputee-gait-with-an-esar-prosthetic-foot
#1
Mohammad Taghi Karimi, Firooz Salami, Amir Esrafilian, Daniel W W Heitzmann, Merkur Alimusaj, Cornelia Putz, Sebastian I Wolf
The incidence of knee and hip joint osteoarthritis in subjects with below knee amputation (BK) appears significantly higher compared to unimpaired subjects, especially in the intact side. However, it is controversial if constant higher loads on the sound side are one of the major factors for an increased osteoarthritis (OA) incidence in subjects with BK, beside other risk factors, e.g. with respect to metabolism. The aim wasto investigate joint contact forces (JCF) calculated by a musculoskeletal model in the intact side and to compare it with those of unimpaired subjects and to further elucidate in how far increased knee JCF are associated with increased frontal plane knee moments...
August 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28811046/effect-of-real-time-biofeedback-on-peak-knee-adduction-moment-in-patients-with-medial-knee-osteoarthritis-is-direct-feedback-effective
#2
Rosie E Richards, Josien C van den Noort, Martin van der Esch, Marjolein J Booij, Jaap Harlaar
BACKGROUND: Gait modifications can reduce the knee adduction moment, a representation of knee loading. Reduced loading may help to slow progression of medial knee osteoarthritis. We aimed to investigate the response of patients with medial knee osteoarthritis to direct feedback on the knee adduction moment as a method for modifying the gait pattern, before and after training with specific gait modifications. METHODS: Forty patients with medial knee osteoarthritis underwent 3D gait analysis on an instrumented-treadmill, while receiving real-time feedback on the peak knee adduction moment...
July 13, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28799491/exercise-programmes-for-osteoarthritis-with-different-localization
#3
Sevdalina Lambova
Therapeutic exercises in osteoarthritis (OA) are therapeutic approach with proven efficacy. On the other hand, the different disease form, the lack of established consensus and system for patient education limit the widespread use of therapeutic exercises in clinical practice. The mechanisms of action of therapeutic exercise in OA include the following components e. g., neuromuscular (improvement of proprioception, muscle strength and joint stability), intra-articular (prevention of cartilage degeneration, antiinflammatory effect, improvement of the quality of the joint fluid), periarticular, general health with reduction of cardiovascular risk and psychological components...
August 10, 2017: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/28768432/effects-of-surgical-factors-on-cartilage-can-be-detected-using-quantitative-magnetic-resonance-imaging-after-anterior-cruciate-ligament-reconstruction
#4
Keiko Amano, Alan K Li, Valentina Pedoia, Matthew F Koff, Aaron J Krych, Thomas M Link, Hollis Potter, Scott Rodeo, Xiaojuan Li, C Benjamin Ma, Sharmila Majumdar
BACKGROUND: Quantitative magnetic resonance (qMR) can be used to measure macromolecules in tissues and is a potential method of observing early cartilage changes in the development of posttraumatic osteoarthritis. Hypothesis/Purpose: We hypothesized that specific patient and surgical factors affecting cartilage matrix composition after anterior cruciate ligament (ACL) reconstruction (ACLR) can be detected using T1ρ and T2 relaxation times. Our purpose was to demonstrate this ability in a multicenter feasibility study...
April 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28763623/the-effects-of-anterolateral-tenodesis-on-tibiofemoral-contact-pressures-and-kinematics
#5
Eivind Inderhaug, Joanna M Stephen, Hadi El-Daou, Andy Williams, Andrew A Amis
BACKGROUND: Anterolateral tenodeses are increasingly popular in combination with intra-articular anterior cruciate ligament reconstructions. Despite the perception of risk of overconstraint and lateral osteoarthritis, evidence is lacking regarding the effect of graft tensioning on knee kinematics and intra-articular compartmental joint pressures. PURPOSE: To investigate tibiofemoral joint contact pressures and kinematics related to an anterolateral lesion and the effectiveness of a MacIntosh tenodesis in restoring these when varying (1) graft tension and (2) tibial rotation during graft fixation...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28755495/identification-of-good-candidates-for-valgus-bracing-as-a-treatment-for-medial-knee-osteoarthritis
#6
Allison L Clouthier, Elizabeth A Hassan, Scott Ce Brandon, Aaron Campbell, Michael J Rainbow, Kevin J Deluzio
Valgus unloader braces are a conservative treatment option for medial compartment knee osteoarthritis that aim to unload the damaged medial compartment through application of an external abduction moment. Patient response to bracing is highly variable, however. While some experience improvements in pain, function, and joint loading, others receive little to no benefit. The objective of this work was to analyze clinical measures and biomechanical characteristics of unbraced walking to identify variables that are associated with the mechanical effectiveness of valgus unloader bracing...
July 29, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28742277/immediate-and-short-term-effects-of-real-time-knee-adduction-moment-feedback-on-the-peak-and-cumulative-knee-load-during-walking
#7
Brennan Jackson, Keith E Gordon, Alison H Chang
The peak external knee adduction moment (pKAM), KAM impulse, and peak knee flexion moment (pKFM) during gait are important loading variables in medial tibiofemoral osteoarthritis. We evaluated the effects of gait modification, using real-time pKAM visual feedback, on pKAM, KAM impulse, and pKFM; and whether participants could maintain the KAM-reducing gait after feedback removal. Eleven healthy individuals performed a series of walking trials on a split-belt instrumented treadmill under four conditions of Baseline, Feedback, No Feedback Early, and No Feedback Late...
July 25, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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
#8
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/28642979/-medial-opening-wedge-high-tibial-osteotomy
#9
REVIEW
P Niemeyer, A Stöhr, M Köhne, A Hochrein
OBJECTIVE: Reduction of the load to the medial compartment in patients with medial knee osteoarthritis and varus malalignment. Unloading of the posterolateral complex in varus deformity with complex ligamentous laxity. INDICATIONS: Medial knee osteoarthritis and varus malalignment with largely intact lateral and patellofemoral joint aspect. Complex ligament insufficiency combined with varus deformity. CONTRAINDICATIONS: Substantially impaired range of motion...
August 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28642164/joint-loading-and-proximal-tibia-subchondral-trabecular-bone-microarchitecture-differ-with-walking-gait-patterns-in-end-stage-knee-osteoarthritis
#10
B C Roberts, L B Solomon, G Mercer, K J Reynolds, D Thewlis, E Perilli
OBJECTIVES: To (1) stratify subgroups according to their distinct walking gait patterns in end-stage knee osteoarthritis (OA) patients; (2) compare measures of joint loading and proximal tibia subchondral trabecular bone (STB) microarchitecture among subgroups. DESIGN: Twenty-five knee OA patients undergoing total knee arthroplasty (TKA) had pre-operative gait analysis. Following surgery, excised tibial plateaus were micro-CT-scanned and STB microarchitecture analysed in four tibial condylar regions of interest...
June 20, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28639519/knee-joint-kinetics-in-response-to-multiple-three-dimensional-printed-customised-foot-orthoses-for-the-treatment-of-medial-compartment-knee-osteoarthritis
#11
Richard Allan, James Woodburn, Scott Telfer, Mandy Abbott, Martijn Pm Steultjens
The knee adduction moment is consistently used as a surrogate measure of medial compartment loading. Foot orthoses are designed to reduce knee adduction moment via lateral wedging. The 'dose' of wedging required to optimally unload the affected compartment is unknown and variable between individuals. This study explores a personalised approach via three-dimensional printed foot orthotics to assess the biomechanical response when two design variables are altered: orthotic length and lateral wedging. Foot orthoses were created for 10 individuals with symptomatic medial knee osteoarthritis and 10 controls...
June 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28614253/a-systematic-review-and-meta-analysis-into-the-effect-of-lateral-wedge-arch-support-insoles-for-reducing-knee-joint-load-in-patients-with-medial-knee-osteoarthritis
#12
REVIEW
Fei Xing, Bin Lu, Ming-Jie Kuang, Ying Wang, Yun-Long Zhao, Jie Zhao, Lei Sun, Yan Wang, Jian-Xiong Ma, Xin-Long Ma
OBJECTIVE: The aim of this study was to evaluate the immediate effects of lateral wedge arch support insoles (LWAS) on reducing the knee joint load in patients with medial knee osteoarthritis (OA) compared with an appropriate control. METHODS: Databases including Medline, EMBASE, Web of Science, Wiley Online Library, Cochrane library, and Google Scholar were searched with no limits on study date or language, from the earliest available date to October 31, 2016. The included studies had to have the aim of reducing knee load and have an appropriate control...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28589390/-unloading-with-insoles-orthotics-and-braces-pre-operative-leg-axis-correction-or-independent-treatment
#13
REVIEW
M Kess, C Stärke, P Henle
BACKGROUND: Knee osteoarthritis (OA) is a leading joint disease. In most of the early stages it does not involve the whole knee joint. Often, symptoms only or mainly concern the medial compartment combined with a slight varus malalignment. OBJECTIVES: Do valgus braces or laterally wedged insoles influence biomechanics and thus improve pain and function in patients with medial OA? Does the OA grade, severity of malalignment or patient's body weight predict the efficacy of the above-mentioned conservative treatment options? MATERIALS AND METHODS: The current literature was reviewed in regard to biomechanical changes to joint loading and their correlation to clinical results...
June 6, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28582908/the-collagen-microstructural-changes-of-rat-menisci-and-tibiofemoral-cartilages-under-the-influence-of-mechanical-loading-an-in-vitro-wear-test-of-whole-joints
#14
Haoliuyang Cai, Zhixiu Hao, Liying Xiao, Chao Wan, Lingying Tong
BACKGROUND: Knee osteoarthritis (OA) is suggested to be induced by multi-factors, and mechanical environment is regarded as a risky factor. OBJECTIVE: To investigate the effect of isolated mechanical factor on cartilage. METHODS: An active wear test system was designed to perform parameters-controlled in vitro wear tests on rat knee joints with specific load magnitude, flexion-extension angle, and movement frequency. Six hind limbs of 9-month-old male Sprague-Dawley rats, with an additional spring on the medial side, were worn by using the custom-designed apparatus...
July 20, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28566397/mediolateral-force-distribution-at-the-knee-joint-shifts-across-activities-and-is-driven-by-tibiofemoral-alignment
#15
I Kutzner, A Bender, J Dymke, G Duda, P von Roth, G Bergmann
AIMS: Tibiofemoral alignment is important to determine the rate of progression of osteoarthritis and implant survival after total knee arthroplasty (TKA). Normally, surgeons aim for neutral tibiofemoral alignment following TKA, but this has been questioned in recent years. The aim of this study was to evaluate whether varus or valgus alignment indeed leads to increased medial or lateral tibiofemoral forces during static and dynamic weight-bearing activities. PATIENTS AND METHODS: Tibiofemoral contact forces and moments were measured in nine patients with instrumented knee implants...
June 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28544950/the-influence-of-continuous-versus-interval-walking-exercise-on-knee-joint-loading-and-pain-in-patients-with-knee-osteoarthritis
#16
Shawn Farrokhi, Prakash Jayabalan, Jonathan A Gustafson, Brian A Klatt, Gwendolyn A Sowa, Sara R Piva
OBJECTIVE: To evaluate whether knee contact force and knee pain are different between continuous and interval walking exercise in patients with knee osteoarthritis (OA). METHODS: Twenty seven patients with unilateral symptomatic knee OA completed two separate walking exercise sessions on a treadmill at 1.3m/s on two different days: 1) a continuous 45min walking exercise session, and 2) three 15min bouts of walking exercise separated by 1h rest periods for a total of 45min of exercise in an interval format...
July 2017: Gait & Posture
https://www.readbyqxmd.com/read/28527700/failure-of-high-tibial-varus-osteotomy-for-lateral-tibio-femoral-osteoarthritis-with-10%C3%A2-of-valgus-outcomes-in-19-patients
#17
G Mirouse, A Dubory, F Roubineau, A Poignard, P Hernigou, J Allain, C H Flouzat Lachaniette
BACKGROUND: Osteotomy is a rational approach to slowing knee osteoarthritis progression by modifying loads, thereby avoiding joint replacement in younger individuals. Varus femoral osteotomy is recommended only in patients with more than 10° of valgus. The objective here was to assess outcomes of tibial varus osteotomy in patients with lateral compartment tibio-femoral osteoarthritis and less than 10° of valgus. The hypothesis was that high tibial varus osteotomy produces satisfactory and long-lasting improvements...
May 17, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28520463/a-preclinical-assessment-of-early-continuous-passive-motion-and-treadmill-therapeutic-exercises-for-generating-chondroprotective-effects-after-anterior-cruciate-ligament-rupture
#18
Nai-Jen Chang, Kuan-Wei Lee, Chih-Jou Chu, Ming-You Shie, Pei-Hsi Chou, Chih-Chan Lin, Peir-In Liang
BACKGROUND: Anterior cruciate ligament (ACL) injury is a well-known risk factor for the development of posttraumatic osteoarthritis (PTOA). However, whether using continuous passive motion (CPM) with or without additional treadmill exercise (TRE) in early ACL injury might provide chondroprotective effects and further decrease the risk of PTOA has yet to be determined. HYPOTHESIS: CPM may offer an enhanced chondroprotective effect, but TRE may attenuate that effect due to the mechanical stress on the joint and inflammatory cytokines in the joint...
August 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28508006/early-osteoarthritis-after-untreated-anterior-meniscal-root-tears-an-in-vivo-animal-study
#19
Brett D Steineman, Robert F LaPrade, Kelly S Santangelo, Brent T Warner, Laurie R Goodrich, Tammy L Haut Donahue
BACKGROUND: Meniscal root tears cause menisci and their insertions to inadequately distribute loads and potentially leave underlying articular cartilage unprotected. Untreated meniscal root tears are becoming increasingly recognized to induce joint degradation; however, little information is known about anterior meniscal root tears and how they affect joint tissue. PURPOSE: To observe the early degenerative changes within the synovial fluid, menisci, tibial articular cartilage, and subchondral bone after arthroscopic creation of untreated anterior meniscal root tears...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28480842/dinamics-of-knee-joint-space-asymmetry-on-x-ray-as-a-marker-of-knee-osteoarthritis-rehabilitation-efficacy
#20
N Sheveleva, L Minbayeva, Y Belyayeva
Reducing of articular cartilage functional volume in knee joint osteoarthritis occurs unevenly and accompanied with pathological changes of lower limb axis as a result of connective tissue and muscle structures dysfunction. Evaluation of X-ray knee joint space asymmetry seems to be informative to analyze the dynamics of lower extremities biomechanical imbalances characteristic for knee joint osteoarthritis. However, standardized method of X-ray joint space determining does not include its symmetry calculation...
March 2017: Georgian Medical News
keyword
keyword
106720
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"