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Cartilage injuries

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https://www.readbyqxmd.com/read/27911285/the-relation-between-chondromalacia-patella-and-meniscal-tear-and-the-sulcus-angle-trochlear-depth-ratio-as-a-powerful-predictor
#1
Hatice Resorlu, Coskun Zateri, Gurdal Nusran, Ferdi Goksel, Nilufer Aylanc
PURPOSE: To investigate the relation between chondromalacia patella and the sulcus angle/trochlear depth ratio as a marker of trochlear morphology. In addition, we also planned to show the relationship between meniscus damage, subcutaneous adipose tissue thickness as a marker of obesity, patellar tilt angle and chondromalacia patella. METHODS: Patients with trauma, rheumatologic disease, a history of knee surgery and patellar variations such as patella alba and patella baja were excluded...
November 25, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27905366/-experience-of-transaxillary-endoscopic-thyroid-surgery
#2
V K Lyadov, M V Neklyudova, D R Pashaeva
AIM: To compare the outcomes after open and endoscopic interventions on thyroid gland. MATERIAL AND METHODS: We have retrospectively analyzed 158 interventions on thyroid gland for the period March 2014 - January 2016. Herewith, 21 interventions were performed endoscopically with transaxillary removal of specimen. RESULTS: The study was designed in 2 groups - main (endoscopic surgery) and control (open surgery). There were 2 complications in the main group: intraoperative injury of cricoid cartilage by harmonic scalpel and unilateral subcutaneous emphysema of the neck and face...
2016: Khirurgiia
https://www.readbyqxmd.com/read/27904793/current-concepts-in-treatment-of-patellofemoral-osteochondritis-dissecans
#3
Chris Juneau, Russ Paine, Eric Chicas, Emily Gardner, Lane Bailey, James McDermott
: Identification, protection, and management of patellofemoral articular cartilage lesions continue to remain on the forefront of sports medicine rehabilitation. Due to high-level compression forces that are applied through the patellofemoral (PF) joint, managing articular cartilage lesions is challenging for sports medicine specialists. Articular cartilage damage may exist in a wide spectrum of injuries ranging from small, single areas of focal damage to wide spread osteoarthritis involving large chondral regions...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27899950/bone-anchored-titanium-implants-in-patients-with-auricular-defects-three-years-and-27-patients-experience
#4
Emilio Mevio, Luca Facca, Stefano Schettini, Mauro Mullace
Different surgical solutions have been proposed for reconstruction of the auricle following loss of the pinna through traumatic injury or neoplastic disease or in patients with congenital defects. Surgical treatment may involve the insertion of an autogenous rib cartilage framework or the use of a porous polymer material inserted into an expanded postauricular flap. Reconstruction with rib cartilage has yielded good results but requires more than one surgical step, and adverse events can occur both at the donor and at the acceptor site; cases of prosthesis rejection have also been described following application of the polymeric prosthesis...
2016: International Journal of Otolaryngology
https://www.readbyqxmd.com/read/27893158/articular-cartilage-scores-in-cranial-cruciate-ligament-deficient-dogs-with-or-without-bucket-handle-tears-of-the-medial-meniscus
#5
Kathryn Kaufman, Brian S Beale, Howard D Thames, W Brian Saunders
OBJECTIVE: To compare articular cartilage scores in cranial cruciate ligament (CCL)-deficient dogs with or without concurrent bucket handle tears (BHT) of the medial meniscus. STUDY DESIGN: Retrospective case series. ANIMALS: Client-owned dogs treated with arthroscopy and tibial plateau leveling osteotomy or extracapsular repair for complete CCL rupture (290 stifles from 264 dogs). METHODS: Medical records and arthroscopic images were reviewed...
November 28, 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27890197/-treatment-of-partial-articular-fractures-of-the-distal-radius-in-active-young-adults
#6
C Camps, A Durand, M Merle
The wrist's function is at stake in young active adults with partial intra-articular fractures of the distal radius. The high energy nature of these injuries, displaced fractures with risk of malunion in case of insufficient treatment, and associated ligament or cartilage damage all hinder the prognosis of these fractures. Many classification systems exist to help us analyze and in some cases, select a treatment. Optimal management requires a high-quality preoperative assessment and a precise surgical technique coupled with the use of arthroscopy to deal with joint and ligament injuries in the same operation...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27882106/evaluation-of-crrt-effects-on-pyemic-secondary-aki-by-serum-cartilage-glycoprotein-39-and-annexin-a1
#7
Yu Wu, Ling Wang, Lei Meng, Guang-Ke Cao, Yang Zhang
The aim of the present study was to examine the effects of continuous renal replacement therapy (CRRT) on pyemic secondary acute kidney injury (AKI) by serum cartilage glycoprotein 39 (YKL-40) and Annexin A1. From October, 2013 to October, 2015, 45 pyemic secondary AKI cases and 40 pyemic non-secondary AKI cases were selected for the present study. There were also 35 cases of physical examination volunteers. The serum YKL-40 and Annexin A1 levels were compared. CRRT was applied to pyemic secondary AKI patients and based on the obtained results the patients were divided into the success and failure groups...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881381/two-year-outcomes-of-a-randomized-trial-investigating-a-6-week-return-to-full-weightbearing-after-matrix-induced-autologous-chondrocyte-implantation
#8
Jay R Ebert, Peter K Edwards, Michael Fallon, Timothy R Ackland, Gregory C Janes, David J Wood
BACKGROUND: Matrix-induced autologous chondrocyte implantation (MACI) has demonstrated encouraging outcomes in treating patients with knee cartilage defects. Postoperatively, the time required to attain full weightbearing (WB) remains conservative. HYPOTHESIS: We hypothesized that patients would have no significant clinical or radiological differences or graft complications after an 8-week or 6-week return to full WB after MACI. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1...
November 23, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27876676/anatomical-region-dependent-enhancement-of-3-dimensional-chondrogenic-differentiation-of-human-mesenchymal-stem-cells-by-soluble-meniscus-extracellular-matrix
#9
Benjamin B Rothrauff, Kazunori Shimomura, Riccardo Gottardi, Peter G Alexander, Rocky S Tuan
: Extracellular matrix (ECM) derived from decellularized tissues has been found to promote tissue neogenesis, most likely mediated by specific biochemical and physical signaling motifs that promote tissue-specific differentiation of progenitor cells. Decellularized ECM has been suggested to be efficacious for the repair of tissue injuries. However, decellularized meniscus contains a dense collagenous structure, which impedes cell seeding and infiltration and is not readily applicable for meniscus repair...
November 19, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27871993/msc-exosome-as-a-cell-free-msc-therapy-for-cartilage-regeneration-implications-for-osteoarthritis-treatment
#10
REVIEW
Wei Seong Toh, Ruenn Chai Lai, James Hoi Po Hui, Sai Kiang Lim
Mesenchymal stem cell (MSC) therapies have demonstrated efficacy in cartilage repair in animal and clinical studies. The efficacy of MSC-based therapies which was previously predicated on the chondrogenic potential of MSC is increasingly attributed to the paracrine secretion, particularly exosomes. Exosomes are thought to function primarily as intercellular communication vehicles to transfer bioactive lipids, nucleic acids (mRNAs and microRNAs) and proteins between cells to elicit biological responses in recipient cells...
November 18, 2016: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/27871655/surgical-indications-and-technique-for-anterior-cruciate-ligament-reconstruction-combined-with-lateral-extra-articular-tenodesis-or-anterolateral-ligament-reconstruction
#11
REVIEW
Bart Vundelinckx, Benjamin Herman, Alan Getgood, Robert Litchfield
After anterior cruciate ligament (ACL) rupture, anteroposterior and rotational laxity in the knee causes instability, functional symptoms, and damage to other intra-articular structures. Surgical reconstruction aims to restore the stability in the knee, and to improve function and ability to participate in sports. It also protects cartilage and menisci from secondary injuries. Because of persistent rotational instability after ACL reconstruction, combined intra-articular and extra-articular procedures are more commonly performed...
January 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27869622/acl-deficiency-increases-forces-on-the-medial-femoral-condyle-and-the-lateral-meniscus-with-applied-rotatory-loads
#12
Lucas S McDonald, James Boorman-Padgett, Robert Kent, Kyle Stone, Thomas L Wickiewicz, Andrew D Pearle, Carl W Imhauser
BACKGROUND: The articular surfaces and menisci act with the anterior cruciate ligament (ACL) to stabilize the knee joint. Their role in resisting applied rotatory loads characteristic of instability events is unclear despite commonly observed damage to these intra-articular structures in the acute and chronic ACL injury settings. METHODS: Ten fresh-frozen human cadaveric knees were mounted to a robotic manipulator. Combined valgus and internal rotation torques were applied in the presence and absence of a 300-N compressive load...
October 19, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27856294/role-of-the-c-c-chemokine-receptor-2-in-a-murine-model-of-injury-induced-osteoarthritis
#13
L Longobardi, J D Temple, L Tagliafierro, H Willcockson, A Esposito, N D'Onofrio, E Stein, T Li, T J Myers, H Ozkan, M L Balestrieri, V Ulici, R F Loeser, A Spagnoli
OBJECTIVE: We previously found in our embryonic studies that proper regulation of the chemokine CCL12 through its sole receptor CCR2, is critical for joint and growth plate development. In the present study, we examined the role of CCR2 in injury-induced-osteoarthritis (OA). METHOD: We used a murine model of injury-induced-OA (destabilization of medial meniscus, DMM), and systemically blocked CCR2 using a specific antagonist (RS504393) at different times during disease progression...
November 14, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27853243/axin2-expressing-cells-execute-regeneration-after-skeletal-injury
#14
R C Ransom, D J Hunter, S Hyman, G Singh, S C Ransom, E Z Shen, K C Perez, M Gillette, J Li, B Liu, J B Brunski, J A Helms
The mammalian skeleton performs a diverse range of vital functions, requiring mechanisms of regeneration that restore functional skeletal cell populations after injury. We hypothesized that the Wnt pathway specifies distinct functional subsets of skeletal cell types, and that lineage tracing of Wnt-responding cells (WRCs) using the Axin2 gene in mice identifies a population of long-lived skeletal cells on the periosteum of long bone. Ablation of these WRCs disrupts healing after injury, and three-dimensional finite element modeling of the regenerate delineates their essential role in functional bone regeneration...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27847384/parathyroid-hormone-induced-bone-marrow-mesenchymal-stem-cell-chondrogenic-differentiation-and-its-repair-of-articular-cartilage-injury-in-rabbits
#15
Yushu Chen, Yi Chen, Shujiang Zhang, Xiufan Du, Bo Bai
BACKGROUND We explored the effect of parathyroid hormone (PTH)-induced bone marrow stem cells (BMSCs) complexed with fibrin glue (FG) in the repair of articular cartilage injury in rabbits. MATERIAL AND METHODS Forty-eight rabbits randomized into four groups were subjected to articular surgery (cartilage loss). The PTH and non-PTH intervention groups included transplantation with PTH/BMSC/FG xenogeneic and BMSC/FG xenogeneic complexes, respectively, into the injured area. The injured group contained no transplant while the control group comprised rabbits without any articular injury...
November 16, 2016: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/27846352/-risk-factors-and-frequency-in-re-ruptures-of-the-anterior-cruciate-ligament-in-adults
#16
M L Velázquez-Rueda, J P Martínez-Ávila, A G Pérez-Serna, F Gómez-García
BACKGROUND: The anterior cruciate ligament (ACL) takes part in the knees articular cinematic regulation, which is why its rupture should be repaired as soon as possible. The surgical treatment is targeted to substitute the ruptured ACL with a graft that recreates the anatomical and biomechanical functions. Nevertheless, there are different factors that may produce a second rupture. OBJECTIVE: To determine the risk factors and frequency of failure in the ACL reconstruction...
March 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27843894/linking-cellular-and-mechanical-processes-in-articular-cartilage-lesion-formation-a-mathematical-model
#17
Georgi I Kapitanov, Xiayi Wang, Bruce P Ayati, Marc J Brouillette, James A Martin
Post-traumatic osteoarthritis affects almost 20% of the adult US population. An injurious impact applies a significant amount of physical stress on articular cartilage and can initiate a cascade of biochemical reactions that can lead to the development of osteoarthritis. In our effort to understand the underlying biochemical mechanisms of this debilitating disease, we have constructed a multiscale mathematical model of the process with three components: cellular, chemical, and mechanical. The cellular component describes the different chondrocyte states according to the chemicals these cells release...
2016: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/27830867/isolated-costal-cartilage-fractures-the-radiographically-overlooked-injuries
#18
Shi-Min Yuan
Isolated costal cartilage fractures are benign and rare. A 65-year-old man had a sustained chest pain after a fist punch in the past month. A three-dimensional computed tomography revealed left 7th and 8th costal cartilage fractures with fracture dislocations. As he refused an open fracture reduction, he was advised to have a rest with subsequent follow-up. Ultrasound screening is recommended in patients with sustained posttraumatic chest pains in order to rule out possible costal cartilage fractures. The therapeutic regimen generally depends on the location and severity of the fracture...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27826673/solute-transport-of-negatively-charged-contrast-agents-across-articular-surface-of-injured-cartilage
#19
H T Kokkonen, H C Chin, J Töyräs, J S Jurvelin, T M Quinn
Solute transport through the extracellular matrix (ECM) is crucial to chondrocyte metabolism. Cartilage injury affects solute transport in cartilage due to alterations in ECM structure and solute-matrix interactions. Therefore, cartilage injury may be detected by using contrast agent-based clinical imaging. In the present study, effects of mechanical injury on transport of negatively charged contrast agents in cartilage were characterized. Using cartilage plugs injured by mechanical compression protocol, effective partition coefficients and diffusion fluxes of iodine- and gadolinium-based contrast agents were measured using high resolution microCT imaging...
November 8, 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27824492/evolution-of-intrameniscal-signal-intensity-alterations-detected-on-mri-over-24-months-in-patients-with-traumatic-anterior-cruciate-ligament-tear
#20
Julio Brandao Guimaraes, Luca Facchetti, Benedikt J Schwaiger, Alexandra S Gersing, Sharmila Majumdar, Benjamin C Ma, Xiaojuan Li, Thomas M Link
OBJECTIVE: The objective of our study was to assess the prevalence and evolution of intrameniscal signal-intensity alteration in subjects with an anterior cruciate ligament (ACL) tear over 24 months and compare clinical outcome and changes of cartilage between subjects with and those without this meniscal abnormality. MATERIALS AND METHODS: Fifty-seven subjects with an ACL tear were screened for intrameniscal signal-intensity alteration. Morphologic and compositional MRI was performed before ACL reconstruction and 12 and 24 months after ACL reconstruction...
November 8, 2016: AJR. American Journal of Roentgenology
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