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https://www.readbyqxmd.com/read/29468171/influence-of-meniscal-and-chondral-lesions-on-patient-reported-outcomes-after-primary-anterior-cruciate-ligament-reconstruction-at-2-year-follow-up
#1
Mark E Cinque, Jorge Chahla, Justin J Mitchell, Gilbert Moatshe, Jonas Pogorzelski, Colin P Murphy, Nicholas I Kennedy, Jonathan A Godin, Robert F LaPrade
Background: Meniscal and chondral lesions are commonly associated with anterior cruciate ligament (ACL) tears, and these lesions may play a role in patient outcomes after ACL reconstruction. Purpose: To determine the effects of the presence and location of meniscal and chondral lesions at the time of ACL reconstruction on patient-reported outcomes at a minimum 2-year follow-up. Study Design: Cohort study; Level of evidence, 3. Methods: Patients with no prior knee surgery who underwent primary ACL reconstruction by a single surgeon between 2010 and 2014 were included in this study...
February 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29460414/tissue-engineering-of-human-knee-meniscus-using-functionalized-and-reinforced-silk-pva-composite-3d-scaffolds-understanding-the-in-vitro-and-in-vivo-behaviour
#2
Mamatha M Pillai, J Gopinathan, R Senthil Kumar, G Sathish Kumar, S Shanthakumari, K Santosh Sahanand, Amitava Bhattacharyya, R Selvakumar
Tissue engineered constructs with rapid restoration of mechanical and biological properties remains a challenge, emphasizing the need to develop novel scaffolds. Here we present a multi-component composite 3D scaffold structure with biomimetic reinforcement and biomolecule functionalization for meniscus tissue engineering. The scaffold structure was developed using 3:1 silk fibroin (SF) and polyvinyl alcohol (PVA). Autoclaved eggshell membrane (AESM) powder (1-3%w/v) was used as reinforcement to enhance biomechanical properties...
February 20, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29459687/maturation-state-and-matrix-microstructure-regulate-interstitial-cell-migration-in-dense-connective-tissues
#3
Feini Qu, Qing Li, Xiao Wang, Xuan Cao, Miltiadis H Zgonis, John L Esterhai, Vivek B Shenoy, Lin Han, Robert L Mauck
Few regenerative approaches exist for the treatment of injuries to adult dense connective tissues. Compared to fetal tissues, adult connective tissues are hypocellular and show limited healing after injury. We hypothesized that robust repair can occur in fetal tissues with an immature extracellular matrix (ECM) that is conducive to cell migration, and that this process fails in adults due to the biophysical barriers imposed by the mature ECM. Using the knee meniscus as a platform, we evaluated the evolving micromechanics and microstructure of fetal and adult tissues, and interrogated the interstitial migratory capacity of adult meniscal cells through fetal and adult tissue microenvironments with or without partial enzymatic digestion...
February 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29457424/-progress-on-diagnosis-and-treatment-of-proximal-tibiofibular-joint-dislocation
#4
REVIEW
Bin Yuan, Bao-Jian Ge, Bai-Yi Meng
Dislocation of proximal tibiofibular joint(PTFJ) is relatively infrequent in clinic, it can be either isolated or associated with tibia fracture, fibular fracture and ankle injury and so on. Chronic symptomatic PTFJ instability are easily mixed with meniscal tears. It was easily neglected because of the mild clinical presentation and atypical change on radiography. Early diagnosis and treatment are crucial to prevent chronic knee pain and instability. The paper concluded the anatomy, classification, complication, diagnosis, treatment, clinical effect and insufficient of the dislocation of PTFJ, to direct the diagnosis and treatment of proximal tibiofibular joint dislocation in clinical work...
October 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29456708/meniscal-allograft-transplantation-using-a-novel-all-arthroscopic-technique-with-specifically-designed-instrumentation
#5
Ya-Dong Zhang, Shu-Xun Hou, Hong-Bin Zhong, Yi-Chao Zhang, Dian-Zhong Luo
The present study describes a novel all-arthroscopic technique for medial and lateral meniscal allograft transplantation (MAT). Surgical instruments were specifically designed to assist in the all-arthroscopic approach for MAT. The bone plug attachment technique, either the arthroscopic-assisted or all-arthroscopic approach, attaches bone plugs to the anterior and posterior horns. In the present study, two sets of surgical implements were designed: One to produce bone plugs of predefined sizes in the anterior and posterior horns of the allograft meniscus (bone plug implements) and a second to create bone tunnels in the receptor tibial plateau to hold the bone plugs (bone tunnel implements)...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456068/magnetic-resonance-imaging-diagnosis-of-medial-meniscal-ramp-lesions-in-patients-with-anterior-cruciate-ligament-injuries
#6
Kazuhisa Hatayama, Masanori Terauchi, Kenichi Saito, Jun Aoki, Satoshi Nonaka, Hiroshi Higuchi
PURPOSE: To prospectively evaluate the sensitivity and specificity of magnetic resonance imaging (MRI) for diagnosing ramp lesions, to compare them between 1.5- and 3-T MRI, and to evaluate whether bone contusion of the posterior lip of the medial tibial plateau was associated with ramp lesions. METHODS: For 155 knees that underwent primary ACL reconstruction, we prospectively examined for ramp lesions and medial meniscal body tears on MRI. MRI diagnosis of ramp lesions required high signal irregularity of the capsular margin or separation in the meniscocapsular junction of the medial meniscus posterior horn on sagittal images...
February 15, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29456063/clinical-outcome-of-arthroscopic-lateral-retinacular-release-for-symptomatic-bipartite-patella-in-athletes
#7
Lamberto Felli, Matteo Formica, Stefano Lovisolo, Andrea Giorgio Capello, Mattia Alessio-Mazzola
PURPOSE: To report the results of arthroscopic lateral retinacular release without excision of the accessory fragment for treatment of symptomatic bipartite patella with a minimum 2-year follow-up. METHODS: We retrospectively reviewed all cases of symptomatic type III bipartite patella confirmed by radiographs, computed tomography, and magnetic resonance imaging and treated with arthroscopic lateral release from 2005 to 2015. Patients with history of knee fractures or surgery, concomitant meniscal or anterior cruciate ligament (ACL) procedures, and severe arthritic changes of the patellofemoral joint were excluded...
February 15, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29453584/variations-in-the-attachments-of-the-medial-meniscal-anterior-horn-a-descriptive-cadaveric-study
#8
Innocent Ouko, James Kigera, Kevin Ongeti, Anne Pulei
PURPOSE: Meniscal tears are common in Kenya, with prevalence rates ranging from 45 to 78% of intracapsular knee pathology. Diagnosis of these injuries relies on the use of both clinical signs and symptoms as well as radiological investigations. In a few instances, radiological detection could be difficult, partly because of variant attachment patterns of the medial meniscal anterior horn. Some of these unusual attachments of the anterior horn of the medial meniscus could even be mistaken for meniscal tears...
February 16, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29452004/review-of-literature-on-measurements-of-non-invasive-break-up-times-lipid-morphology-and-tear-meniscal-height-using-commercially-available-hand-held-instruments
#9
Louis Tong, Lim Shee Teng
Purpose/aims: Dry eye is a common multi-factorial disease characterized by tearfilm dysfunction. Diagnosis of dry eye requires documentation of tear status with non-invasive tear break up times (NIBUT), tear meniscal height (TMH), and tearfilm lipid layer. These parameters objectively assess tear stability and indirectly, the functional impact of meibomian gland dysfunction. While it is obvious that portable instrumentation gives broader access than fixed instrumentation, its value would be limited if it is unreliable and its precision and accuracy substantially worse than fixed instruments...
February 16, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29449218/arthroscopic-surgery-for-degenerative-knee-arthritis-and-meniscal-tears-a-clinical-practice-guideline
#10
Reed A C Siemieniuk, Ian A Harris, Thomas Agoritsas, Rudolf W Poolman, Romina Brignardello-Petersen, Stijn Van de Velde, Rachelle Buchbinder, Martin Englund, Lyubov Lytvyn, Casey Quinlan, Lise Helsingen, Gunnar Knutsen, Nina Rydland Olsen, Helen Macdonald, Louise Hailey, Hazel M Wilson, Anne Lydiatt, Annette Kristiansen
No abstract text is available yet for this article.
March 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29447236/the-influence-of-a-change-in-the-meniscus-cross-sectional-shape-on-the-medio-lateral-translation-of-the-knee-joint-and-meniscal-extrusion
#11
Piotr Luczkiewicz, Karol Daszkiewicz, Wojciech Witkowski, Jacek Chróścielewski, Tomasz Ferenc, Boguslaw Baczkowski
OBJECTIVE: The purpose of this study was to evaluate the influence of a change in the meniscus cross sectional shape on its position and on the biomechanics of a knee joint. METHODS: One main finite element model of a left knee joint was created on the basis of MRI images. The model consisted of bones, articular cartilages, menisci and ligaments. Eight variants of this model with an increased or decreased meniscus height were then prepared. Nonlinear static analyses with a fixed flexion/extension movement for a compressive load of 1000 N were performed...
2018: PloS One
https://www.readbyqxmd.com/read/29445968/arthroscopic-direct-meniscal-extrusion-reduction-surgical-tips-to-reduce-persistent-meniscal-extrusion-in-meniscal-root-repair
#12
Bancha Chernchujit, Renaldi Prasetia
Meniscal extrusion (ME) is defined as extension of the meniscal margin by at least 3 mm beyond the tibial margin. The main purpose of meniscal root repair is to restore the anatomy and function of the meniscus. Therefore, the reduction in the ME is one of the important objective outcomes. Nevertheless, the reduced meniscal extrusion was obtained in limited patients after meniscal root repair. This technical note described the arthroscopic direct meniscal extrusion reduction as surgical tips to reduce persistent meniscal extrusion in posterior meniscal root repair...
February 14, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29443758/a-novel-arthroscopic-all-inside-suture-technique-using-the-fast-fix-360-system-for-repairing-horizontal-meniscal-tears-in-young-athletes-3-case-reports
#13
Satoru Atsumi, Kunio Hara, Yuji Arai, Manabu Yamada, Naoki Mizoshiri, Aguri Kamitani, Toshikazu Kubo
RATIONALE: Considering the risk of osteoarthritis following resection of a horizontally torn meniscus of the knee, repairing and preserving the meniscus as much as possible is preferred. We report 3 cases of restoration of horizontally torn menisci using a novel arthroscopic method we have called "all-inside interleaf vertical suture" that afforded preservation. PATIENT CONCERNS: The 3 patients (aged 14, 17, and 21 years) had knee pain through sports activity. DIAGNOSES: All patients had horizontal tears in the posteromedial part of the meniscus...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29438746/longitudinal-changes-in-mr-t1%C3%AF-t2-signal-of-meniscus-and-its-association-with-cartilage-t1p-t2-in-acl-injured-patients
#14
Joseph Knox, Valentina Pedoia, Amy Wang, Matthew Tanaka, Gabby B Joseph, Jan Neumann, Thomas M Link, Xiaojuan Li, C Benjamin Ma
OBJECTIVE: To evaluate the longitudinal changes in meniscal T1ρ/T2 signal post-reconstruction in patients with acute anterior cruciate ligament (ACL) injury and to investigate the association with T1ρ/T2 signal in articular knee cartilage. METHOD: In this prospective study, knees of 37 patients with ACL-injury and reconstruction in addition to 13 healthy controls were scanned using magnetic resonance imaging (MRI) T1ρ/T2 mapping. Quantitative analysis of the meniscus was performed in the anterior/posterior horns of lateral/medial meniscus fourteen sub-compartments of cartilage spanning the medial/lateral area of the tibia and femoral condyles...
February 10, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29438635/twenty-year-follow-up-study-comparing-operative-versus-nonoperative-treatment-of-anterior-cruciate-ligament-ruptures-in-high-level-athletes
#15
Daan T van Yperen, Max Reijman, Eline M van Es, Sita M A Bierma-Zeinstra, Duncan E Meuffels
BACKGROUND: An anterior cruciate ligament (ACL) rupture has major consequences at midterm follow-up, with an increasing chance of developing an old knee in a young patient. The long-term (≥20 years) effects of the operative and nonoperative treatment of ACL ruptures are still unclear. PURPOSE: To compare the long-term treatment outcomes of operative versus nonoperative treatment of ACL ruptures in high-level athletes. STUDY DESIGN: Cohort study; Level of evidence, 2...
February 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29430715/characterization-and-comparison-of-rat-monosodium-iodoacetate-and-medial-meniscal-tear-models-of-osteoarthritic-pain
#16
Jill-Desiree Brederson, Katharine L Chu, Jun Xu, Arthur L Nikkel, Stella Markosyan, Michael F Jarvis, Rebecca Edelmayer, Robert S Bitner, Steve McGaraughty
Osteoarthritis (OA) is a degenerative form of arthritis that can result in loss of joint function and chronic pain. The pathological pain state that develops with OA disease involves plastic changes in the peripheral and central nervous systems, however, the cellular mechanisms underlying OA are not fully understood. We characterized the medial meniscal tear (MMT) surgical model and the intra-articular injection of monosodium iodoacetate (MIA) chemical model of OA in rats. Both models produced histological changes in the knee joint and associated bones consistent with OA pathology...
February 11, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29430489/posterior-cruciate-ligament-current-concepts-review
#17
REVIEW
Santiago Pache, Zachary S Aman, Mitchell Kennedy, Gilberto Yoshinobu Nakama, Gilbert Moatshe, Connor Ziegler, Robert F LaPrade
The posterior cruciate ligament (PCL) is the largest and strongest ligament in the human knee, and the primary posterior stabilizer. Recent anatomy and biomechanical studies have provided an improved understanding of PCL function. PCL injuries are typically combined with other ligamentous, meniscal and chondral injuries. Stress radiography has become an important and validated objective measure in surgical decision making and post-operative assessment. Isolated grade I or II PCL injuries can usually be treated non-operatively...
January 2018: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29430394/both-posterior-root-lateral-medial-meniscus-tears-with-anterior-cruciate-ligament-rupture-the-step-by-step-systematic-arthroscopic-repair%C3%A2-technique
#18
Bancha Chernchujit, Renaldi Prasetia
The occurrence of posterior root tear of both the lateral and medial menisci, combined with anterior cruciate ligament rupture, is rare. Problems may be encountered such as the difficulty to access the medial meniscal root tear, the confusing circumstances about which structure to repair first, and the possibility of the tunnel for each repair to become taut inside the tibial bone. We present the arthroscopy technique step by step to overcome the difficulties in an efficient and time-preserving manner.
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29430389/arthroscopic-lateral-meniscal-allograft-transplantation-with-the-key-hole-technique
#19
Dhong Won Lee, Jung Ho Park, Kyu Sung Chung, Jeong Ku Ha, Jin Goo Kim
The efficacy of meniscus allograft transplantation (MAT) for the meniscus-deficient knee has been widely recognized as being excellent in terms of pain relief and functional improvement. Lateral MAT is usually performed with the bone bridge technique that uses a bone bridge connecting the anterior and posterior horns of an allograft. The slot position for the meniscal graft insertion is of great importance with the bone bridge technique, especially in the key-hole method. The purpose of this Technical Note is to describe lateral MAT using the key-hole technique in which an allograft with a bone bridge carved to accommodate the key-hole-shaped slot is properly secured to the slot...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29427724/relation-of-meniscus-pathology-to-prevalence-and-worsening-of-patellofemoral-joint-osteoarthritis-the-multicenter-osteoarthritis-study
#20
Harvi F Hart, Kay M Crossley, David Felson, Mohamed Jarraya, Ali Guermazi, Frank Roemer, Beth Lewis, Jim Torner, Michael Nevitt, Joshua J Stefanik
OBJECTIVE: To determine the relationship of meniscal damage to magnetic resonance imaging (MRI) features of compartment-specific patellofemoral joint (PFJ) osteoarthritis (OA) at baseline and 2 years later. METHOD: Individuals from a prospective cohort of individuals aged 50-79 with or at risk of knee OA were included. At the 60-month and 84-month study visit, Whole-Organ MRI Score (WORMS) was used to assess meniscal tears and extrusions as well as cartilage damage and bone marrow lesions (BMLs) in the medial and lateral patella and trochlea...
February 7, 2018: Osteoarthritis and Cartilage
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