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Zheng P, Zhang X, Feng C, Yu Y, Che G, Cao Z, Tian L, Huang Y. Alterations in articular cartilage frictional properties in the setting of acute gouty arthritis. PLoS One 2024; 19:e0298722. [PMID: 38512881 PMCID: PMC10956800 DOI: 10.1371/journal.pone.0298722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 01/29/2024] [Indexed: 03/23/2024] Open
Abstract
The tribological behaviour of articular cartilage plays a key role in joint motion; however, there is a gap in research on the effect of hyperuricemic joint fluid on cartilage friction behaviour in acute gouty arthritis. In this study, we carried out a fixed-load scratch experiment to compare the friction and wear of articular cartilage under the lubrication of gouty arthritis arthritic fluid and normal human arthritic fluid, and the results showed that the cartilage friction coefficient of patients with acute gouty arthritis was significantly larger than that of normal human beings, and that the cartilage friction coefficient decreased with the elevation of normal load and sliding speed, and the change with the sliding speed varied more differently from that of normal human beings, and that the cartilage surface wear was more severe after prolonged friction. The wear and tear of the cartilage surface is more severe after prolonged friction. Patients with gouty arthritis should reduce the sudden speed changes such as fast running and variable speed running to maintain the stability of the cartilage surface friction coefficient.
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Affiliation(s)
- Pai Zheng
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xueer Zhang
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chengcheng Feng
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuhong Yu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guangwei Che
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhihong Cao
- Key Laboratory of Testing Technology for Manufacturing Process in Ministry of Education, Southwest University of Science and Technology, Mianyang, China
| | - Li Tian
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Huang
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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de Roy L, Eichhorn K, Faschingbauer M, Schlickenrieder K, Ignatius A, Seitz AM. Impact of hyaluronic acid injection on the knee joint friction. Knee Surg Sports Traumatol Arthrosc 2023; 31:5554-5564. [PMID: 37843587 PMCID: PMC10719131 DOI: 10.1007/s00167-023-07602-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/21/2023] [Indexed: 10/17/2023]
Abstract
PURPOSE The purpose of this in vitro study was to investigate whether or not hyaluronic acid supplementation improves knee joint friction during osteoarthritis progression under gait-like loading conditions. METHODS Twelve human cadaveric knee joints were equally divided into mild and moderate osteoarthritic groups. After initial conservative preparation, a passive pendulum setup was used to test the whole joints under gait-like conditions before and after hyaluronic acid supplementation. The friction-related damping properties given by the coefficient of friction µ and the damping coefficient c (in kg m2/s) were calculated from the decaying flexion-extension motion of the knee. Subsequently, tibial and femoral cartilage and meniscus samples were extracted from the joints and tested in an established dynamic pin-on-plate tribometer using synthetic synovial fluid followed by synthetic synovial fluid supplemented with hyaluronic acid as lubricant. Friction was quantified by calculating the coefficient of friction. RESULTS In the pendulum tests, the moderate OA group indicated significantly lower c0 values (p < 0.05) under stance phase conditions and significantly lower µ0 (p = 0.01) values under swing phase conditions. No degeneration-related statistical differences were found for µend or cend. Friction was not significantly different (p > 0.05) with regard to mild and moderate osteoarthritis in the pin-on-plate tests. Additionally, hyaluronic acid did not affect friction in both, the pendulum (p > 0.05) and pin-on-plate friction tests (p > 0.05). CONCLUSION The results of this in vitro study suggested that the friction of cadaveric knee joint tissues does not increase with progressing degeneration. Moreover, hyaluronic acid viscosupplementation does not lead to an initial decrease in knee joint friction.
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Affiliation(s)
- Luisa de Roy
- Institute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Helmholtzstraße 14, 89081, Ulm, Germany
| | - Kerstin Eichhorn
- Institute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Helmholtzstraße 14, 89081, Ulm, Germany
| | - Martin Faschingbauer
- Department of Orthopedic Surgery, RKU, Ulm University Medical Center, Ulm, Germany
| | - Klaus Schlickenrieder
- Faculty of Production Engineering and Management, Ulm University of Applied Sciences, Ulm, Germany
| | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Helmholtzstraße 14, 89081, Ulm, Germany
| | - Andreas Martin Seitz
- Institute of Orthopedic Research and Biomechanics, Center for Trauma Research, Ulm University Medical Center, Helmholtzstraße 14, 89081, Ulm, Germany.
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3
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Dvir I, Abd-Rbo K, Segal D, Kandel LA, Kasem H. New experimental methodology to evaluate lubrication properties of synovial fluid containing worn tissue particles in osteoarthritis patients. FRICTION 2023; 11:2132-2141. [DOI: 10.1007/s40544-023-0748-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/24/2022] [Accepted: 02/17/2023] [Indexed: 09/02/2023]
Abstract
AbstractStudying the lubrication properties of osteoarthritis (OA) synovial fluid (SF) enables an understanding of the boundary lubrication joint, mobility, and friction. However, tribology has never been combined with the clinical reality of the presence of worn particles within the synovial fluid and how they affect the osteoarthritic joints. Part of the problem relates to the tribology methods studying friction by applying inadequate pin-on-disc techniques. In this study, synovial fluid with and without worn particles was studied using a customized tribometer. This method enables opening the contact at the end of each cycle and simulates better contact conditions of a natural knee joint and can thus be applied for evaluating the severity of joint OA and the treatment given to the patient.
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Noriega-González D, Caballero-García A, Roche E, Álvarez-Mon M, Córdova A. Inflammatory Process on Knee Osteoarthritis in Cyclists. J Clin Med 2023; 12:jcm12113703. [PMID: 37297897 DOI: 10.3390/jcm12113703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/17/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Osteoarthritis is a disorder affecting the joints and is characterized by cellular stress and degradation of the extracellular matrix cartilage. It begins with the presence of micro- and macro-lesions that fail to repair properly, which can be initiated by multiple factors: genetic, developmental, metabolic, and traumatic. In the case of the knee, osteoarthritis affects the tissues of the diarthrodial joint, manifested by morphological, biochemical, and biomechanical modifications of the cells and the extracellular matrix. All this leads to remodeling, fissuring, ulceration, and loss of articular cartilage, as well as sclerosis of the subchondral bone with the production of osteophytes and subchondral cysts. The symptomatology appears at different time points and is accompanied by pain, deformation, disability, and varying degrees of local inflammation. Repetitive concentric movements, such as while cycling, can produce the microtrauma that leads to osteoarthritis. Aggravation of the gradual lesion in the cartilage matrix can evolve to an irreversible injury. The objective of the present review is to explain the evolution of knee osteoarthritis in cyclists, to show the scarce research performed in this particular field and extract recommendations to propose future therapeutic strategies.
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Affiliation(s)
- David Noriega-González
- Department of Surgery, Ophthalmology, Otorhinolaryngology and Physiotherapy, Faculty of Medicine, HVUV, 47003 Valladolid, Spain
| | - Alberto Caballero-García
- Department of Anatomy and Radiology, Faculty of Health Sciences, GIR Physical Exercise and Aging, University of Valladolid, Campus Los Pajaritos, 42004 Soria, Spain
| | - Enrique Roche
- Department of Applied Biology-Nutrition and Institute of Bioengineering, Miguel Hernández University (UMH), 03202 Elche, Spain
- Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
- CIBER Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Melchor Álvarez-Mon
- Department of Internal Medicine, University of Alcalá de Henares, 28801 Alcalá de Henares, Spain
| | - Alfredo Córdova
- Department of Biochemistry, Molecular Biology and Physiology, Faculty of Health Sciences, GIR Physical Exercise and Aging, University of Valladolid, Campus Duques de Soria, 42004 Soria, Spain
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Belluzzi E, Todros S, Pozzuoli A, Ruggieri P, Carniel EL, Berardo A. Human Cartilage Biomechanics: Experimental and Theoretical Approaches towards the Identification of Mechanical Properties in Healthy and Osteoarthritic Conditions. Processes (Basel) 2023. [DOI: 10.3390/pr11041014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Articular cartilage is a complex connective tissue with the fundamental functions of load bearing, shock absorption and lubrication in joints. However, traumatic events, aging and degenerative pathologies may affect its structural integrity and function, causing pain and long-term disability. Osteoarthritis represents a health issue, which concerns an increasing number of people worldwide. Moreover, it has been observed that this pathology also affects the mechanical behavior of the articular cartilage. To better understand this correlation, the here proposed review analyzes the physiological aspects that influence cartilage microstructure and biomechanics, with a special focus on the pathological changes caused by osteoarthritis. Particularly, the experimental data on human articular cartilage are presented with reference to different techniques adopted for mechanical testing and the related theoretical mechanical models usually applied to articular cartilage are briefly discussed.
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Tavakoli J, Torkaman G, Ravanbod R, Abroun S. Regenerative Effect of Low-Intensity Pulsed Ultrasound and Platelet-Rich Plasma on the Joint Friction and Biomechanical Properties of Cartilage: A Non-traumatic Osteoarthritis Model in the Guinea Pig. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:862-871. [PMID: 35184911 DOI: 10.1016/j.ultrasmedbio.2022.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/07/2021] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
This study was aimed at investigating the effects of platelet-rich plasma (PRP) and low-intensity pulsed ultrasound (LIPUS) on the joint friction parameters and biomechanical properties of articular cartilage in a non-traumatic knee osteoarthritis (OA) model. Fifty adult male Dunkin Hartley guinea pigs were randomly divided into five groups: control, OA60, OA + US, OA + PRP and OA + US + PRP). Non-traumatic knee OA was induced with a single dose of 3 mg of mono-iodoacetate (MIA) by intra-articular injection. Intra-articular PRP was injected twice in the OA + PRP and OA + US + PRP groups. LIPUS was delivered in 10 sessions in the OA + US and OA + US + PRP groups. By use of the pendulum free oscillation test, joint friction (coefficient of friction) was measured. In addition, the instantaneous elastic modulus and aggregate modulus were measured using the stress-relaxation test. MIA injection decreased cartilage thickness, instantaneous elastic modulus and aggregate modulus, and increased joint friction. The friction coefficients in the OA + US and OA + US + PRP groups reached near-normal values, and there was no significant difference compared with the control group (p = 0.232 and p = 0.459, respectively). The instantaneous elastic modulus and aggregate modulus in the OA + US group increased significantly compared with the OA + PRP group (p < 0.05). It seems that both LIPUS and PRP injection effectively improved joint lubrication, but LIPUS was superior to PRP in improving the mechanical properties of the articular cartilage.
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Affiliation(s)
- Jalal Tavakoli
- Department of Physical Therapy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Giti Torkaman
- Department of Physical Therapy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Roya Ravanbod
- Department of Physical Therapy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeid Abroun
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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7
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The synthetic artificial stem cell (SASC): Shifting the paradigm of cell therapy in regenerative engineering. Proc Natl Acad Sci U S A 2022; 119:2116865118. [PMID: 34987101 PMCID: PMC8764679 DOI: 10.1073/pnas.2116865118] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2021] [Indexed: 12/14/2022] Open
Abstract
This paper presents the synthetic artificial stem cell (SASC) system: a versatile therapy which provides the ability to tailor paracrine responses of different cells and provide a more potent regenerative effect for targeted tissues. Upon challenging the SASC system against an osteoarthritis model, we demonstrate that the factors combined tailored for chondrogenesis have a potent antiinflammatory and chondroprotective effect. This paper also demonstrates the in vivo capacity of SASC to attenuate proteoglycan depletion in the cartilage extracellular matrix while also improving biomechanical properties of the resulting cartilage. We report the first of many applications of the SASC system, which provides a promising step toward clinical translation of a minimally immunogenic stem cell with many commercial advantages over its biological counterpart. Stem cells are of great interest in tissue regeneration due to their ability to modulate the local microenvironment by secreting bioactive factors (collectively, secretome). However, secretome delivery through conditioned media still requires time-consuming cell isolation and maintenance and also may contain factors antagonistic to targeted tissue regeneration. We have therefore engineered a synthetic artificial stem cell (SASC) system which mimics the paracrine effect of the stem cell secretome and provides tailorability of the composition for targeted tissue regeneration. We report the first of many applications of the SASC system we have formulated to treat osteoarthritis (OA). Choosing growth factors important to chondrogenesis and encapsulating respective recombinant proteins in poly (lactic-coglycolic acid) 85:15 (PLGA) we fabricated the SASC system. We compared the antiinflammatory and chondroprotective effects of SASC to that of adipose-derived stem cells (ADSCs) using in vitro interleukin 1B-induced and in vivo collagenase-induced osteoarthritis rodent models. We have designed SASC as an injectable therapy with controlled release of the formulated secretome. In vitro, SASC showed significant antiinflammatory and chondroprotective effects as seen by the up-regulation of SOX9 and reduction of nitric oxide, ADAMTS5, and PRG4 genes compared to ADSCs. In vivo, treatment with SASC and ADSCs significantly attenuated cartilage degeneration and improved the biomechanical properties of the articular cartilage in comparison to OA control. This SASC system demonstrates the feasibility of developing a completely synthetic, tailorable stem cell secretome which reinforces the possibility of developing a new therapeutic strategy that provides better control over targeted tissue engineering applications.
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Li Y, Yuan Z, Yang H, Zhong H, Peng W, Xie R. Recent Advances in Understanding the Role of Cartilage Lubrication in Osteoarthritis. Molecules 2021; 26:6122. [PMID: 34684706 PMCID: PMC8540456 DOI: 10.3390/molecules26206122] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 01/15/2023] Open
Abstract
The remarkable lubrication properties of normal articular cartilage play an essential role in daily life, providing almost frictionless movements of joints. Alterations of cartilage surface or degradation of biomacromolecules within synovial fluid increase the wear and tear of the cartilage and hence determining the onset of the most common joint disease, osteoarthritis (OA). The irreversible and progressive degradation of articular cartilage is the hallmark of OA. Considering the absence of effective options to treat OA, the mechanosensitivity of chondrocytes has captured attention. As the only embedded cells in cartilage, the metabolism of chondrocytes is essential in maintaining homeostasis of cartilage, which triggers motivations to understand what is behind the low friction of cartilage and develop biolubrication-based strategies to postpone or even possibly heal OA. This review firstly focuses on the mechanism of cartilage lubrication, particularly on boundary lubrication. Then the mechanotransduction (especially shear stress) of chondrocytes is discussed. The following summarizes the recent development of cartilage-inspired biolubricants to highlight the correlation between cartilage lubrication and OA. One might expect that the restoration of cartilage lubrication at the early stage of OA could potentially promote the regeneration of cartilage and reverse its pathology to cure OA.
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Affiliation(s)
- Yumei Li
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China; (Y.L.); (H.Y.); (H.Z.)
- School of Basic Medicine, Gannan Medical University, Ganzhou 341000, China
| | - Zhongrun Yuan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China;
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Hui Yang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China; (Y.L.); (H.Y.); (H.Z.)
- Jiangxi Province Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou 341000, China
- School of Medical Information Engineering, Gannan Medical University, Ganzhou 341000, China
| | - Haijian Zhong
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China; (Y.L.); (H.Y.); (H.Z.)
- Jiangxi Province Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou 341000, China
- School of Medical Information Engineering, Gannan Medical University, Ganzhou 341000, China
| | - Weijie Peng
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China; (Y.L.); (H.Y.); (H.Z.)
- Jiangxi Province Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou 341000, China
| | - Renjian Xie
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China; (Y.L.); (H.Y.); (H.Z.)
- Jiangxi Province Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou 341000, China
- School of Medical Information Engineering, Gannan Medical University, Ganzhou 341000, China
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Wang Y, Gludish DW, Hayashi K, Todhunter RJ, Krotscheck U, Johnson PJ, Cummings BP, Su J, Reesink HL. Synovial fluid lubricin increases in spontaneous canine cruciate ligament rupture. Sci Rep 2020; 10:16725. [PMID: 33028842 PMCID: PMC7542452 DOI: 10.1038/s41598-020-73270-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 09/07/2020] [Indexed: 02/06/2023] Open
Abstract
Lubricin is an important boundary lubricant and chondroprotective glycoprotein in synovial fluid. Both increased and decreased synovial fluid lubricin concentrations have been reported in experimental post-traumatic osteoarthritis (PTOA) animal models and in naturally occurring joint injuries in humans and animals, with no consensus about how lubricin is altered in different species or injury types. Increased synovial fluid lubricin has been observed following intra-articular fracture in humans and horses and in human late-stage osteoarthritis; however, it is unknown how synovial lubricin is affected by knee-destabilizing injuries in large animals. Spontaneous rupture of cranial cruciate ligament (RCCL), the anterior cruciate ligament equivalent in quadrupeds, is a common injury in dogs often accompanied by OA. Here, clinical records, radiographs, and synovial fluid samples from 30 dogs that sustained RCCL and 9 clinically healthy dogs were analyzed. Synovial fluid lubricin concentrations were nearly 16-fold greater in RCCL joints as compared to control joints, while IL-2, IL-6, IL-8, and TNF-α concentrations did not differ between groups. Synovial fluid lubricin concentrations were correlated with the presence of radiographic OA and were elevated in three animals sustaining RCCL injury prior to the radiographic manifestation of OA, indicating that lubricin may be a potential biomarker for early joint injury.
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Affiliation(s)
- Yuyan Wang
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - David W Gludish
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Kei Hayashi
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Rory J Todhunter
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Ursula Krotscheck
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Philippa J Johnson
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | | | - Jin Su
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Heidi L Reesink
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA.
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Watkins AR, Reesink HL. Lubricin in experimental and naturally occurring osteoarthritis: a systematic review. Osteoarthritis Cartilage 2020; 28:1303-1315. [PMID: 32504786 PMCID: PMC8043104 DOI: 10.1016/j.joca.2020.05.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/28/2020] [Accepted: 05/13/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Lubricin is increasingly being evaluated as an outcome measure in studies investigating post-traumatic and naturally occurring osteoarthritis. However, there are discrepancies in results, making it unclear as to whether lubricin is increased, decreased or unchanged in osteoarthritis. The purpose of this study was to review all papers that measured lubricin in joint injury or osteoarthritis in order to draw conclusions about lubricin regulation in joint disease. DESIGN A systematic search of the Pubmed, Web of Knowledge, and EBSCOhost databases for papers was performed. Inclusion criteria were in vivo studies that measured lubricin in humans or animals with joint injury, that investigated lubricin supplementation in osteoarthritic joints, or that described the phenotype of a lubricin knock-out model. A methodological assessment was performed. RESULTS Sixty-two studies were included, of which thirty-eight measured endogenous lubricin in joint injury or osteoarthritis. Nineteen papers found an increase or no change in lubricin and nineteen reported a decrease. Papers that reported a decrease in lubricin were cited four times more often than those that reported an increase. Fifteen papers described lubricin supplementation, and all reported a beneficial effect. Eleven papers described lubricin knock-out models. CONCLUSIONS The human literature reveals similar distributions of papers reporting increased lubricin as compared to decreased lubricin in osteoarthritis. The animal literature is dominated by reports of decreased lubricin in the rat anterior cruciate ligament transection model, whereas studies in large animal models report increased lubricin. Intra-articular lubricin supplementation may be beneficial regardless of whether lubricin increases or decreases in OA.
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Affiliation(s)
- A R Watkins
- Department of Clinical Sciences, University of Pennsylvania School of Veterinary Medicine, New Bolton Center, Kennett Square, PA, USA
| | - H L Reesink
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
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11
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Wan L, Tan X, Sun T, Sun Y, Luo J, Zhang H. Lubrication and drug release behaviors of mesoporous silica nanoparticles grafted with sulfobetaine-based zwitterionic polymer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110886. [PMID: 32409044 DOI: 10.1016/j.msec.2020.110886] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/14/2020] [Accepted: 03/20/2020] [Indexed: 12/23/2022]
Abstract
Osteoarthritis, which is characterized by irreversible destruction of articular cartilage and severe inflammation of joint capsule, may be effectively treated via the synergistic therapy of lubrication restoration and local drug intervention. In this study, zwitterionic polymer-grafted mesoporous silica nanoparticles (MSNs@pSBMA) with the property of enhanced lubrication and sustained drug release were successfully synthesized via photopolymerization of 3-[dimethyl-[2-(2-methylprop-2-enoyloxy) ethyl] azaniumyl] propane-1-sulfonate polymer (pSBMA) on the surface of MSNs. The tribiological test showed that the lubrication performance of MSNs@pSBMA was remarkably improved, with a reduction of 80% in friction coefficient compared with MSNs. It was attributed to hydration lubrication mechanism by which a tenacious hydration layer was formed surrounding the N+(CH2)2(CH3)2 and SO3- headgroups in the pSBMA polyelectrolyte polymer. Additionally, the surface morphology analysis of the tribopairs demonstrated that MSNs@pSBMA were endowed with excellent anti-wear performance. Importantly, the drug release test illustrated that, compared with MSNs, MSNs@pSBMA achieved good sustained drug release behavior. In summary, the MSNs@pSBMA nanoparticles developed herein, as an injectable lubricant with enhanced lubrication and drug delivery, may represent a promising approach for the treatment of osteoarthritis.
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Affiliation(s)
- Li Wan
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China; College of Mining, Guizhou University, Guiyang 550025, China
| | - Xiaolong Tan
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Tao Sun
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Yulong Sun
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Jing Luo
- Beijing Research Institute of Automation for Machinery Industry Co., Ltd, Beijing 100120, China
| | - Hongyu Zhang
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.
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12
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Farnham MS, Larson RE, Burris DL, Price C. Effects of mechanical injury on the tribological rehydration and lubrication of articular cartilage. J Mech Behav Biomed Mater 2019; 101:103422. [PMID: 31527014 DOI: 10.1016/j.jmbbm.2019.103422] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 12/14/2022]
Abstract
Healthy articular cartilage is crucial to joint function, as it provides the low friction and load bearing surface necessary for joint articulation. Nonetheless, joint injury places patients at increased risk of experiencing both accelerated cartilage degeneration and wear, and joint dysfunction due to post-traumatic osteoarthritis (PTOA). In this study, we used our ex vivo convergent stationary contact area (cSCA) explant testing configuration to demonstrate that high-speed sliding of healthy tissues against glass could drive consistent and reproducible recovery of compression-induced cartilage deformation, through the mechanism of 'tribological rehydration'. In contrast, the presence of physical cartilage damage, mimicking those injuries known to precipitate PTOA, could compromise tribological rehydration and the sliding-driven recovery of cartilage function. Full-thickness cartilage injuries (i.e. fissures and chondral defects) markedly suppressed sliding-driven tribological rehydration. In contrast, impaction to cartilage, which caused surface associated damage, had little effect on the immediate tribomechanical response of explants to sliding (deformation/strain, tribological rehydration, and friction/lubricity). By leveraging the unique ability of the cSCA configuration to support tribological rehydration, this study permitted the first direct ex vivo investigation of injury-dependent strain and friction outcomes in cartilage under testing conditions that replicate and maintain physiologically-relevant levels of fluid load support and frictional outcomes under high sliding speeds (80 mm/s) and moderate compressive stresses (~0.3 MPa). Understanding how injury alters cartilage tribomechanics during sliding sheds light on mechanisms by which cartilage's long-term resilience and low frictional properties are maintained, and can guide studies investigating the functional consequences of physical injury and joint articulation on cartilage health, disease, and rehabilitation.
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Affiliation(s)
- Margot S Farnham
- Department of Biomedical Engineering, University of Delaware, Newark, DE, USA.
| | - Riley E Larson
- Department of Biomedical Engineering, University of Delaware, Newark, DE, USA.
| | - David L Burris
- Department of Biomedical Engineering, University of Delaware, Newark, DE, USA; Department of Mechanical Engineering, University of Delaware, Newark, DE, USA.
| | - Christopher Price
- Department of Biomedical Engineering, University of Delaware, Newark, DE, USA; Department of Mechanical Engineering, University of Delaware, Newark, DE, USA.
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13
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Yang F, Su X, Pi J, Liao K, Zhou H, Sun Y, Liu J, Guo X, Jiang J, Jin H, Cai J, Li T, Liu L. Atomic force microscopy technique used for assessment of the anti-arthritic effect of licochalcone A via suppressing NF-κB activation. Biomed Pharmacother 2018; 103:1592-1601. [DOI: 10.1016/j.biopha.2018.04.142] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/18/2018] [Accepted: 04/18/2018] [Indexed: 11/29/2022] Open
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Han B, Nia HT, Wang C, Chandrasekaran P, Li Q, Chery DR, Li H, Grodzinsky AJ, Han L. AFM-Nanomechanical Test: An Interdisciplinary Tool That Links the Understanding of Cartilage and Meniscus Biomechanics, Osteoarthritis Degeneration, and Tissue Engineering. ACS Biomater Sci Eng 2017; 3:2033-2049. [PMID: 31423463 PMCID: PMC6697429 DOI: 10.1021/acsbiomaterials.7b00307] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Our objective is to provide an in-depth review of the recent technical advances of atomic force microscopy (AFM)-based nanomechanical tests and their contribution to a better understanding and diagnosis of osteoarthritis (OA), as well as the repair of tissues undergoing degeneration during OA progression. We first summarize a range of technical approaches for AFM-based nanoindentation, including considerations in both experimental design and data analysis. We then provide a more detailed description of two recently developed modes of AFM-nanoindentation, a high-bandwidth nanorheometer system for studying poroviscoelasticity and an immunofluorescence-guided nanomechanical mapping technique for delineating the pericellular matrix (PCM) and territorial/interterritorial matrix (T/IT-ECM) of surrounding cells in connective tissues. Next, we summarize recent applications of these approaches to three aspects of joint-related healthcare and disease: cartilage aging and OA, developmental biology and OA pathogenesis in murine models, and nanomechanics of the meniscus. These studies were performed over a hierarchy of length scales, from the molecular, cellular to the whole tissue level. The advances described here have contributed greatly to advancing the fundamental knowledge base for improved understanding, detection, and treatment of OA.
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Affiliation(s)
- Biao Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Hadi T. Nia
- Department of Radiation Oncology, Massachusetts General Hospital Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Chao Wang
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Prashant Chandrasekaran
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Qing Li
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Daphney R. Chery
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Hao Li
- College of Architecture and the Built Environment, Philadelphia University, Philadelphia, Pennsylvania 19144, United States
| | - Alan J. Grodzinsky
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Lin Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
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15
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Tang S, Chaudhry A, Kim N, Reddy JN, Righetti R. Effect of bone-soft tissue friction on ultrasound axial shear strain elastography. Phys Med Biol 2017; 62:6074-6091. [PMID: 28699617 DOI: 10.1088/1361-6560/aa766f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Bone-soft tissue friction is an important factor affecting several musculoskeletal disorders, frictional syndromes and the ability of a bone fracture to heal. However, this parameter is difficult to determine using non-invasive imaging modalities, especially in clinical settings. Ultrasound axial shear strain elastography is a non-invasive imaging modality that has been used in the recent past to estimate the bonding between different tissue layers. As most elastography methods, axial shear strain elastography is primarily used in soft tissues. More recently, this technique has been proposed to assess the bone-soft tissue interface. In this paper, we investigate the effect of a variation in bone-soft tissue friction coefficient in the resulting axial shear strain elastograms. Finite element poroelastic models of bone specimens exhibiting different bone-soft tissue friction coefficients were created and mechanically analyzed. These models were then imported to an ultrasound elastography simulation module to assess the presence of axial shear strain patterns. In vitro experiments were performed to corroborate selected simulation results. The results of this study show that the normalized axial shear strain estimated at the bone-soft tissue interface is statistically correlated to the bone-soft tissue coefficient of friction. This information may prove useful to better interpret ultrasound elastography results obtained in bone-related applications and, possibly, monitor bone healing.
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Affiliation(s)
- Songyuan Tang
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, United States of America
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16
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Meinert C, Schrobback K, Levett PA, Lutton C, Sah RL, Klein TJ. Tailoring hydrogel surface properties to modulate cellular response to shear loading. Acta Biomater 2017; 52:105-117. [PMID: 27729233 PMCID: PMC5385162 DOI: 10.1016/j.actbio.2016.10.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/20/2016] [Accepted: 10/07/2016] [Indexed: 12/17/2022]
Abstract
Biological tissues at articulating surfaces, such as articular cartilage, typically have remarkable low-friction properties that limit tissue shear during movement. However, these frictional properties change with trauma, aging, and disease, resulting in an altered mechanical state within the tissues. Yet, it remains unclear how these surface changes affect the behaviour of embedded cells when the tissue is mechanically loaded. Here, we developed a cytocompatible, bilayered hydrogel system that permits control of surface frictional properties without affecting other bulk physicochemical characteristics such as compressive modulus, mass swelling ratio, and water content. This hydrogel system was applied to investigate the effect of variations in surface friction on the biological response of human articular chondrocytes to shear loading. Shear strain in these hydrogels during dynamic shear loading was significantly higher in high-friction hydrogels than in low-friction hydrogels. Chondrogenesis was promoted following dynamic shear stimulation in chondrocyte-encapsulated low-friction hydrogel constructs, whereas matrix synthesis was impaired in high-friction constructs, which instead exhibited increased catabolism. Our findings demonstrate that the surface friction of tissue-engineered cartilage may act as a potent regulator of cellular homeostasis by governing the magnitude of shear deformation during mechanical loading, suggesting a similar relationship may also exist for native articular cartilage. STATEMENT OF SIGNIFICANCE Excessive mechanical loading is believed to be a major risk factor inducing pathogenesis of articular cartilage and other load-bearing tissues. Yet, the mechanisms leading to increased transmission of mechanical stimuli to cells embedded in the tissue remain largely unexplored. Here, we demonstrate that the tribological properties of loadbearing tissues regulate cellular behaviour by governing the magnitude of mechanical deformation arising from physiological tissue function. Based on these findings, we propose that changes to articular surface friction as they occur with trauma, aging, or disease, may initiate tissue pathology by increasing the magnitude of mechanical stress on embedded cells beyond a physiological level.
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Affiliation(s)
- Christoph Meinert
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4059, Australia.
| | - Karsten Schrobback
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4059, Australia.
| | - Peter A Levett
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4059, Australia.
| | - Cameron Lutton
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4059, Australia.
| | - Robert L Sah
- Department of Bioengineering, University of California-San Diego, La Jolla, CA 92093, United States.
| | - Travis J Klein
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland 4059, Australia.
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Reesink H, Watts A, Mohammed H, Jay G, Nixon A. Lubricin/proteoglycan 4 increases in both experimental and naturally occurring equine osteoarthritis. Osteoarthritis Cartilage 2017; 25:128-137. [PMID: 27498214 PMCID: PMC5489058 DOI: 10.1016/j.joca.2016.07.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 07/25/2016] [Accepted: 07/28/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The goals of this study were (1) to quantify proteoglycan 4 (PRG4) gene expression; (2) to assess lubricin immunostaining; and (3) to measure synovial fluid lubricin concentrations in clinical and experimental models of equine carpal osteoarthritis (OA). DESIGN Lubricin synovial fluid concentrations and cartilage and synovial membrane PRG4 expression were analyzed in research horses undergoing experimental OA induction (n = 8) and in equine clinical patients with carpal OA (n = 58). Lubricin concentrations were measured using a custom sandwich enzyme-linked immunosorbent assay, and PRG4 expression was quantified using qRT-PCR. Lubricin immunostaining was assessed in synovial membrane and osteochondral sections in the experimental model. RESULTS Lubricin concentrations increased in synovial fluid following induction of OA, peaking at 21 days post-operatively in OA joints vs sham-operated controls (331 ± 69 μg/mL vs 110 ± 19 μg/mL, P = 0.001). Lubricin concentrations also increased in horses with naturally occurring OA as compared to control joints (152 ± 32 μg/mL vs 68 ± 4 μg/mL, P = 0.003). Synovial membrane PRG4 expression increased nearly 2-fold in naturally occurring OA (P = 0.003), whereas cartilage PRG4 expression decreased 2.5-fold (P = 0.025). Lubricin immunostaining was more pronounced in synovial membrane from OA joints as compared to controls, with intense lubricin localization to sites of cartilage damage. CONCLUSIONS Although PRG4 gene expression decreases in OA cartilage, synovial membrane PRG4 expression, synovial fluid lubricin concentrations and lubricin immunostaining all increase in an equine OA model. Lubricin may be elevated to protect joints from post-traumatic OA.
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Affiliation(s)
- H.L. Reesink
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA,Address correspondence and reprint requests to: H.L. Reesink, Department of Clinical Sciences, Cornell University, Ithaca, NY 14853, USA. Fax: 1-607-253-3787. (A.J. Nixon)
| | - A.E. Watts
- Department of Large Animal Clinical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - H.O. Mohammed
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - G.D. Jay
- Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA,Department of Engineering, Brown University, Providence, RI 12903, USA
| | - A.J. Nixon
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA,Address correspondence and reprint requests to: A.J. Nixon, Department of Clinical Sciences, Cornell University, Ithaca, NY 14853, USA. Fax: 1-607-253-3787, (H.L. Reesink)
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Madry H, Kon E, Condello V, Peretti GM, Steinwachs M, Seil R, Berruto M, Engebretsen L, Filardo G, Angele P. Early osteoarthritis of the knee. Knee Surg Sports Traumatol Arthrosc 2016; 24:1753-62. [PMID: 27000393 DOI: 10.1007/s00167-016-4068-3] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/23/2016] [Indexed: 12/28/2022]
Abstract
There is an increasing awareness on the importance in identifying early phases of the degenerative processes in knee osteoarthritis (OA), the crucial period of the disease when there might still be the possibility to initiate treatments preventing its progression. Early OA may show a diffuse and ill-defined involvement, but also originate in the cartilage surrounding a focal lesion, thus necessitating a separate assessment of these two entities. Early OA can be considered to include a maximal involvement of 50 % of the cartilage thickness based on the macroscopic ICRS classification, reflecting an OARSI grade 4. The purpose of this paper was to provide an updated review of the current status of the diagnosis and definition of early knee OA, including the clinical, radiographical, histological, MRI, and arthroscopic definitions and biomarkers. Based on current evidence, practical classification criteria are presented. As new insights and technologies become available, they will further evolve to better define and treat early knee OA.
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Affiliation(s)
- Henning Madry
- Center of Experimental Orthopaedics, Saarland University, Kirrberger Strasse 100, Building 37-38, 66421, Homburg/Saar, Germany.
- Department of Orthopaedic Surgery, Saarland University Medical Center, Kirrberger Strasse 100, Building 37-38, 66421, Homburg/Saar, Germany.
| | - Elizaveta Kon
- NABI Laboratory, Rizzoli Orthopaedic Institute, Via Di Barbiano, 1/10, 40136, Bologna, Italy
| | - Vincenzo Condello
- Dipartimento di Ortopedia, Responsabile di Struttura Semplice di Traumatologia dello, Sport Knee Surgery and Sports Traumatology, Ospedale Sacro Cuore - Don Calabria, Via Don, Sempreboni, 5, 37024, Negrar, Verona, Italy
| | - Giuseppe M Peretti
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Matthias Steinwachs
- SportClinic Zürich, Klinik Hirslanden, Witellikerstrasse 40, 8032, Zurich, Switzerland
| | - Romain Seil
- Service de Chirurgie Orthopédique, Centre de L'Appareil Locomoteur, de Médecine du Sport et de Prévention, Centre Hospitalier de Luxembourg-Clinique d'Eich and Sports Medicine Research Laboratory, Luxembourg Institute of Health, 78, rue d'Eich, 1460, Luxembourg, Luxembourg
| | - Massimo Berruto
- Centro di Eccellenza per L'attività Ortopedica, Reumatologica e Riabilitativa, L'Istituto Ortopedico Gaetano Pini è un'Azienda Ospedaliera di rilievo nazionale, P.zza A. Ferrari, 1, 20122, Milan, Italy
| | - Lars Engebretsen
- Department of Orthopedic Surgery, Oslo University Hospital and Oslo Sports Trauma Research Center, 0407, Oslo, Norway
| | - Giuseppe Filardo
- Biomechanics Laboratory, II Orthopaedics and Traumatology Clinic, Rizzoli Orthopaedic Institute, Via Di Barbiano, 1/10, 40136, Bologna, Italy
| | - Peter Angele
- Department of Trauma Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93042, Regensburg, Germany
- Sporthopaedicum Regensburg, Hildegard von Bingen Strasse 1, 93053, Regensburg, Germany
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Hammond AS, Plavcan JM, Ward CV. A validated method for modeling anthropoid hip abduction
in silico. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 160:529-48. [DOI: 10.1002/ajpa.22990] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 03/19/2016] [Accepted: 03/21/2016] [Indexed: 02/02/2023]
Affiliation(s)
- Ashley S. Hammond
- Center for Advanced Study of Human PaleobiologyDepartment of AnthropologyGeorge Washington UniversityWashington DC20052
- Department of AnatomyHoward University College of Medicine, Washington DC20059
- Department of Pathology and Anatomical SciencesUniversity of Missouri School of MedicineColumbia MO65212
| | | | - Carol V. Ward
- Department of Pathology and Anatomical SciencesUniversity of Missouri School of MedicineColumbia MO65212
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20
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Liu X, Yun SH, Claesson PM. Frictional behavior of micro-patterned silicon surface. J Colloid Interface Sci 2015; 456:76-84. [DOI: 10.1016/j.jcis.2015.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/04/2015] [Accepted: 06/04/2015] [Indexed: 11/24/2022]
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21
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In Vitro Analyses of the Toxicity, Immunological, and Gene Expression Effects of Cobalt-Chromium Alloy Wear Debris and Co Ions Derived from Metal-on-Metal Hip Implants. LUBRICANTS 2015. [DOI: 10.3390/lubricants3030539] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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22
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Tribological changes in the articular cartilage of a human femoral head with avascular necrosis. Biointerphases 2015; 10:021004. [DOI: 10.1116/1.4919020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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23
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Miller MC, Kuxhaus L, Cowgill ML, Cook HA, Druschel M, Palmer B, Baratz ME. Unique model evokes the supination/pronation deficits found after Mason II fractures. J Orthop Res 2015; 33:343-8. [PMID: 25565571 DOI: 10.1002/jor.22771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 10/20/2014] [Indexed: 02/04/2023]
Abstract
A rapid prototyping model of Mason II fracture was used to investigate baseline recommendations for surgical intervention founded on kinematic forearm rotational blockage. Exact replicas of the radial heads in nine cadaveric specimens were produced and specimens were tested in a physiologic elbow simulator. After testing supination/pronation, the rotations were repeated with native replicas and with replicas modeling 3 mm depressed Mason II fractures with and without a gap of 1 mm between the body and fragment. The fragments were located circumferentially around the radial head at 10, 2 and 6 o'clock positions. There was no statistical difference between the range of motion of the native case and the native replica without fracture. After inclusion of the fracture, seven of the nine specimens showed rotational blockages. A two-way ANOVA found no statistical difference due to type of Mason II fracture (p > 0.87) or fracture location (p > 0.27). A χ-square analysis showed that presence of a kinematic deficit with a fractured radial head was significant (p < 0.03). The results support continued surgical intervention for a 3 mm depressed fracture and also establish the use of the rapid prototype as a model for kinematic investigation of fractures in a cadaveric model when ligamentous attachments are preserved.
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Affiliation(s)
- Mark Carl Miller
- Allegheny General Hospital, Pittsburgh, PA; University of Pittsburgh, Pittsburgh, PA
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Singh A, Corvelli M, Unterman SA, Wepasnick KA, McDonnell P, Elisseeff JH. Enhanced lubrication on tissue and biomaterial surfaces through peptide-mediated binding of hyaluronic acid. NATURE MATERIALS 2014; 13:988-95. [PMID: 25087069 PMCID: PMC6317357 DOI: 10.1038/nmat4048] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 07/02/2014] [Indexed: 05/04/2023]
Abstract
Lubrication is key for the efficient function of devices and tissues with moving surfaces, such as articulating joints, ocular surfaces and the lungs. Indeed, lubrication dysfunction leads to increased friction and degeneration of these systems. Here, we present a polymer-peptide surface coating platform to non-covalently bind hyaluronic acid (HA), a natural lubricant in the body. Tissue surfaces treated with the HA-binding system exhibited higher lubricity values, and in vivo were able to retain HA in the articular joint and to bind ocular tissue surfaces. Biomaterials-mediated strategies that locally bind and concentrate HA could provide physical and biological benefits when used to treat tissue-lubricating dysfunction and to coat medical devices.
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Affiliation(s)
- Anirudha Singh
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21287, USA
| | - Michael Corvelli
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21287, USA
| | - Shimon A. Unterman
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21287, USA
| | - Kevin A. Wepasnick
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Peter McDonnell
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21287, USA
| | - Jennifer H. Elisseeff
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21287, USA
- To whom correspondence should be addressed: , Johns Hopkins University, Wilmer Eye Institute and Department of Biomedical Engineering, Smith Building, Rm. 5035, 400 N. Broadway, Baltimore, MD 21231
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