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https://www.readbyqxmd.com/read/27908189/thermoacoustic-imaging-of-rabbit-knee-joints
#1
Zihui Chi, Yuan Zhao, Lin Huang, Zhu Zheng, Huabei Jiang
PURPOSE: Knee joint is one of the largest and most complex joints of the body. Knee joint diseases are common, and current clinical imaging technologies such as x-ray computed tomography, magnetic resonance imaging, and ultrasound imaging have limitations in the diagnosis of knee joint diseases. Emerging imaging technologies such as diffuse optical tomography and photoacoustic imaging (PAI) have been applied to the detection of osteoarthritis (OA). However, they are limited to small joints such as the finger and difficult to be used for large joints such as the knee...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907934/restriction-of-postoperative-joint-loading-in-a-murine-model-of-anterior-cruciate-ligament-reconstruction-botulinum-toxin-paralysis-and-external-fixation
#2
Amir Lebaschi, Xiang-Hua Deng, Nathan W Coleman, Christopher L Camp, Jianchun Zong, Andrew Carbone, Camila B Carballo, Guang-Ting Cong, Zoe M Album, Scott A Rodeo
Control of knee motion in small animal models is necessary to study the effect of mechanical load on the healing process. This can be especially challenging in mice, which are being increasingly used for various orthopedic reconstruction models. We explored the feasibility of botulinum toxin (Botox; Allergan, Dublin, Ireland) paralysis and a newly designed external fixator to restrict motion of the knee in mice undergoing anterior cruciate ligament (ACL) reconstruction. Nineteen C57BL/6 mice were allocated to two groups: (1) Botox group (n = 9) and (2) external fixator group (n = 10)...
December 1, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27904951/pre-emptive-injection-of-peri-articular-multimodal-drug-for-post-operative-pain-management-in-total-knee-arthroplasty-a-double-blind-randomized-clinical-trial
#3
Mahdi Motififard, Ali Omidian, Sajad Badiei
PURPOSE: Severe post-operative pain is one of the main problems after total knee arthroplasty. In this study, we investigated the effect of a peri-articular multimodal drugs injections pre-emptively on post-operative pain control and knee functions following total knee arthroplasty. METHODS AND MATERIALS: This study was a double-blind randomized clinical trial. Eligible cases including 137 patients-aged 30 to 80 years old-were randomly divided into one of two groups: the drug group received a cocktail consisting of bupivacaine hydrochloride, morphine sulphate, epinephrine, and ketorolac...
November 30, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27900305/microfracture-versus-microfracture-and-platelet-rich-plasma-arthroscopic-treatment-of-knee-chondral-lesions-a-two-year-follow-up-study
#4
Annalisa Mancò, Remo Goderecci, Anna Rughetti, Silvana DE Giorgi, Stefano Necozione, Alfredo Bernardi, Vittorio Calvisi
PURPOSE: the aim of this study was to describe and compare the clinical results obtained in patients affected by chondral lesions of the knee submitted to an arthroscopic treatment with the microfracture technique or microfracture + intraoperative autologous platelet-rich plasma (PRP) injection. METHODS: a prospective observational study was performed in patients affected by chondral lesions of the knee (classed as grade III-IV according to Outer-bridge's classification) and early osteoarthritis (classed as grade 1-2 according to the Kellgren-Lawrence classification)...
July 2016: Joints
https://www.readbyqxmd.com/read/27895439/comparison-of-two-different-molecular-weight-intra-articular-injections-of-hyaluronic-acid-for-the-treatment-of-knee-osteoarthritis
#5
I Gigis, E Fotiadis, A Nenopoulos, K Tsitas, I Hatzokos
BACKGROUND: Knee osteoarthritis (OA) is an incurable joint disorder, representing a major public health issue. Among options for symptom control, viscosupplementation with hyaluronic acid (HA) had established usefulness in pain and function improvement of the knee. However, it is not clear which form of HA yields better results. MATERIAL AND METHODS: We compared two HA preparations with high (HMW) or low molecular weight (LMW) in terms of pain control and function improvement using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and the visual analog scale (VAS) score in patients with knee OA...
January 2016: Hippokratia
https://www.readbyqxmd.com/read/27887784/endoscopic-debridement-and-fibrin-glue-injection-of-a-chronic-morel-lavall%C3%A3-e-lesion-of-the-knee-in-a-professional-soccer-player-a-case-report-and-literature-review
#6
Baris B Koc, Nicolaas Somorjai, Egid P M Kiesouw, Kurt Vanderdood, Marleen Meesters-Caberg, Frits W Draijer, Edwin J P Jansen
A Morel-Lavallée lesion is a post-traumatic closed degloving injury of soft tissue. The lesion is due to a shearing trauma with separation of subcutaneous tissue from underlying fascia. When conservative treatment fails, surgical treatment is imperative. Commonly, open drainage and debridement is performed. This case report describes a Morel-Lavallée lesion of the knee in a professional soccer player who was successfully treated with endoscopic debridement and fibrin glue injection after failure of conservative management...
November 22, 2016: Knee
https://www.readbyqxmd.com/read/27884644/evaluating-augmentation-with-calcium-phosphate-cement-chronos-inject-for-bone-defects-after-internal-fixation-of-proximal-tibial-fractures-a-prospective-multi-center-observational-study
#7
Ki Chul Park, Chang-Wug Oh, Young-Hoon Jo
INTRODUCTION: Managing subchondral bone defects in proximal tibia fractures after plateau reduction is an important consideration.ChronOSInjectis a recently developed calcium phosphate bone substitute that shows relatively fast osteointegration. HYPOTHESIS: UsingchronOS Inject during internal fixation of proximal tibial fractures provides a satisfactory treatment option that is both clinically and radiologically safe. MATERIALS AND METHODS: Patients enrolled in this study were treated with ChronOS Injectbone void filler, during internal fixation of proximal tibial fractures...
November 21, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27881922/effectiveness-of-etofenamate-for-treatment-of-knee-osteoarthritis-a-randomized-controlled-trial
#8
Savaş Güner, Mehmet Ata Gökalp, Abdurrahim Gözen, Seyyid Şerif Ünsal, Şükriye İlkay Güner
The intramuscular application of etofenamate in the treatment of knee osteoarthritis was not observed in the existing English language literature. The objectives of this study were to compare the efficacy of etofenamate versus hyaluronic acid (HA) in reducing joint pain and functional improvement for mild to moderate knee osteoarthritis. The patients were randomly divided into etofenamate (n=29) and HA (n=30) groups. Intramuscular etofenamate injection was administered as a series of seven intramuscular injections at intervals of 1 day...
2016: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/27871565/postoperative-analgesic-efficacy-of-fascia-iliaca-block-versus-periarticular-injection-for-total-knee-arthroplasty
#9
Cagla Bali, Ozlem Ozmete, H Evren Eker, Murat A Hersekli, Anis Aribogan
STUDY OBJECTIVE: This study evaluated the postoperative analgesic efficacies of fascia iliaca block and periarticular drug injection techniques after TKA (total knee arthroplasty) surgeries. DESIGN: Prospective, randomized clinical trial. SETTING: University Teaching and Research Center. PATIENTS: Seventy-one American Society of Anesthesiologists (ASA) I-III patients between 48 and 70 years of age who underwent total knee arthroplasty were randomized...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27867403/in-vitro-tnf-%C3%AE-inhibitory-activity-of-brazilian-plants-and-anti-inflammatory-effect-of-stryphnodendron-adstringens-in-an-acute-arthritis-model
#10
Bárbara O Henriques, Olívia Corrêa, Elaine Patrícia C Azevedo, Rodrigo M Pádua, Vívian Louise S de Oliveira, Thiago Henrique C Oliveira, Daiane Boff, Ana Carolina F Dias, Danielle G de Souza, Flávio A Amaral, Mauro M Teixeira, Rachel O Castilho, Fernão C Braga
Stryphnodendron species, popularly named "barbatimão," are traditionally used in Brazil as anti-inflammatory agents. This study aimed to investigate the effect of barbatimão and 11 other species on the production of tumor necrosis factor-alpha (TNF-α) in lipopolysaccharide- (LPS-) stimulated THP-1 cells, as well as their anti-arthritis activity. The extracts of Stryphnodendron adstringens, Stryphnodendron obovatum, Campomanesia lineatifolia, and Terminalia glabrescens promoted a concentration-dependent inhibition of TNF-α...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27860135/joint-lavage-followed-by-viscosupplementation-and-triamcinolone-in-patients-with-severe-haemophilic-arthropathy-objective-functional-results
#11
M U Rezende, F R Andrusaitis, R T Silva, E Okazaki, J D A Carneiro, G C Campos, A F Pailo, R Frucchi, T Pasqualin, P R Villaça
INTRODUCTION: Viscosupplementation can improve function in haemophilia patients. Viscosupplementation results can be improved by prior joint lavage and triamcinolone administration. AIM: To objectively assess whether viscosupplementation and associated triamcinolone use in patients with severe haemophilic arthropathy following joint lavage improves force and balance and reduces bleeding events. METHODS: Fourteen patients with haemophilic knee arthritis with and without the involvement of other joints underwent joint lavage and subsequent injections of Hylan G-F20 and triamcinolone into all affected joints...
November 16, 2016: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/27852706/efficacy-of-two-injection-site-localisation-techniques-for-botulinum-toxin-injections-a-single-blind-crossover-randomised-trial-protocol-among-adults-with-hemiplegia-due-to-stroke
#12
Claire Morel, Isabelle Hauret, Nicolas Andant, Armand Bonnin, Bruno Pereira, Emmanuel Coudeyre
INTRODUCTION: Botulinum toxin injections are an effective treatment for limb spasticity following stroke. Different tracking techniques are used for this purpose: palpation, electrostimulation, electromyography and ultrasound. Yet very few studies have compared these different techniques, and none has successfully proved the superior efficacy of ultrasound-guided injections compared to another tracking method. The primary objective of our study was therefore to compare the efficacy of botulinum toxin injections depending on the tracking technique used: ultrasound versus electrostimulation...
November 15, 2016: BMJ Open
https://www.readbyqxmd.com/read/27836707/celecoxib-loaded-pea-microspheres-as-an-auto-regulatory-drug-delivery-system-after-intra-articular-injection
#13
Maarten Janssen, Ufuk Tan Timur, Nina Woike, Tim J M Welting, Guy Draaisma, Marion Gijbels, Lodewijk W van Rhijn, George Mihov, Jens Thies, Pieter J Emans
In this study, we investigated the potential of celecoxib-loaded polyester amide (PEA) microspheres as an auto-regulating drug delivery system for the treatment of pain associated with knee osteoarthritis (OA). Celecoxib release from PEA microspheres and inflammation responsive release of a small molecule from PEA was investigated in vitro. Inflammation responsive release of a small molecule from PEA was observed when PEA was exposed to cell lysates obtained from a neutrophil-like Hl-60 cell line. Following a short initial burst release of ~15% of the total drug load in the first days, celecoxib was slowly released throughout a period of >80days...
November 8, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27836674/chondroprotective-activity-of-n-acetyl-phenylalanine-glucosamine-derivative-on-knee-joint-structure-and-inflammation-in-a-murine-model-of-osteoarthritis
#14
F Veronesi, G Giavaresi, M Maglio, A Scotto d'Abusco, L Politi, R Scandurra, E Olivotto, B Grigolo, R M Borzì, M Fini
OBJECTIVE: Osteoarthritis (OA), the most common chronic degenerative joint disease, is characterized by joint structure changes and inflammation, both mediated by the IκB kinase (IKK) signalosome complex. The ability of N-acetyl phenylalanine derivative (NAPA) to increase cartilage matrix components and to reduce inflammatory cytokines, inhibiting IKKα kinase activity, has been observed in vitro. The present study aims to further clarify the effect of NAPA in counteracting OA progression, in an in vivo mouse model after destabilization of the medial meniscus (DMM)...
November 9, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27834683/contribution-of-adenosine-to-the-increase-in-skeletal-muscle-blood-flow-caused-by-manual-acupuncture-in-rats
#15
Hisashi Shinbara, Satomi Nagaoka, Yasuyuki Izutani, Masamichi Okubo, Keisaku Kimura, Kunio Mizunuma, Eiji Sumiya
BACKGROUND AND AIM: Adenosine is believed to play an important role in local acupuncture analgesia. The aim of this study was to investigate the contribution of adenosine to the increase in skeletal muscle blood flow (MBF) caused by manual acupuncture (MA). METHODS: Thirty-two male Sprague-Dawley rats (310-360 g) were anaesthetised and divided into four equal groups (n=8 each): Saline, Saline+MA, Theophylline, and Theophylline+MA. In the two MA groups, the sparrow-pecking MA technique was applied at 30 repetitions per min for 1 min to a depth of 15-18 mm using a stainless steel acupuncture needle (0...
November 10, 2016: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/27832815/in-vivo-human-adipose-derived-mesenchymal-stem-cell-tracking-after-intra-articular-delivery-in-a-rat-osteoarthritis-model
#16
Meng Li, Xuan Luo, Xiaoteng Lv, Victor Liu, Guangyu Zhao, Xue Zhang, Wei Cao, Richard Wang, Wen Wang
BACKGROUND: Human adipose-derived mesenchymal stem cells (haMSCs) have shown efficacy in treating osteoarthritis (OA) both preclinically and clinically via intra-articular (IA) injection. However, understanding the mode of action of the cell therapy has been limited by cell tracking capability and correlation between the pharmacokinetics of the injected cells and the intended pharmacodynamics effect. This study aims to explore methodology and to understand in vivo biodistribution of clinical-grade haMSCs labeled with fluorescent dye and injected into an immunocompetent OA rat model...
November 10, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27822391/ultrasound-guided-genicular-nerve-thermal-radiofrequency-ablation-for-chronic-knee-pain
#17
Joshua Wong, Nicholas Bremer, Paul D Weyker, Christopher A J Webb
Osteoarthritis (OA) of the knee is one of the most common joint diseases affecting adults in the United States. For elderly patients with multiple medical comorbidities who do not wish to undergo total knee arthroplasty (TKA), lifestyle modification, pharmacologic management, and injections are the mainstay of therapy. Previously, pain management interventions were limited to intra-articular joint injections and viscosupplementation with hyaluronic acid. Fluoroscopic-guided techniques for radiofrequency ablation (RFA) of the genicular nerves have been previously described and a recent cadaveric study suggests that ultrasound-guided genicular nerve blocks can be performed accurately...
2016: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/27821994/a-new-treatment-for-knee-osteoarthritis-clinical-evidence-for-the-efficacy-of-arthrokinex%C3%A2-autologous-conditioned-serum
#18
Angelique Barreto, Timothy R Braun
OBJECTIVE: The desired therapeutic effect of Arthrokinex™ autologous conditioned serum (ACS) is facilitated by the ability of IL-1-Ra to limit the destructive inflammatory intra-articular (IA) actions of IL-1β. Previous studies have proven the capacity of Arthrokinex™ (ACS) to induce the anti-inflammatory cytokine, IL-1-Ra. The primary purpose of this retrospective study was to investigate the effect of Arthrokinex™ (ACS) to reduce pain, improve joint function and enhance quality of life in patients with knee osteoarthritis...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27818192/intra-articular-blockade-of-p2x7-receptor-reduces-the-articular-hyperalgesia-and-inflammation-in-the-knee-joint-synovitis-especially-in-female-rats
#19
Juliana Maia Teixeira, Elayne Vieira Dias, Carlos Amílcar Parada, Cláudia Herrera Tambeli
: Synovitis is a key factor in joint diseases pathophysiology, which affects a greater proportion of women than men. P2X7 receptor activation contributes to arthritis, but whether it plays a role in articular inflammatory pain in a sex-dependent manner is unknown. We investigated whether the P2X7 receptor blockade in the knee joint of male and female rats reduces the articular hyperalgesia and inflammation induced by carrageenan knee joint synovitis model. Articular hyperalgesia was quantified using the rat knee joint incapacitation test and the knee joint inflammation, characterized by the concentration of cytokines TNF-α, IL-1β, IL-6 and CINC-1 and by neutrophil migration, was quantified by ELISA and by myeloperoxidase enzyme activity measurement, respectively...
November 3, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27816621/degradation-intra-articular-retention-and-biocompatibility-of-monospheres-composed-of-pdlla-peg-pdlla-b-plla-multi-block-copolymers
#20
Maria J Sandker, Luisa F Duque, Everaldo M Redout, Alan Chan, Ivo Que, Clemens W G M Löwik, Evelien C Klijnstra, Nicole Kops, Rob Steendam, Rene van Weeren, Wim E Hennink, Harrie Weinans
In this study, we investigated the use of microspheres with a narrow particle size distribution ('monospheres') composed of biodegradable poly(DL-lactide)-PEG-poly(DL-lactide)-b-poly(L-lactide) multiblock copolymers that are potentially suitable for local sustained drug release in articular joints. Monospheres with sizes of 5, 15 and 30 μm and a narrow particle size distribution were prepared by a micro-sieve membrane emulsification process. During in vitro degradation, less crystallinity, higher swelling and accelerated mass loss during was observed with increasing the PEG content of the polymer...
November 2, 2016: Acta Biomaterialia
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