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knee ligaments pathology

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https://www.readbyqxmd.com/read/29453795/inflammatory-and-degenerative-phases-resulting-from-anterior-cruciate-rupture-in-a-non-invasive-murine-model-of-post-traumatic-osteoarthritis
#1
Sophie Jane Gilbert, Cleo Selina Bonnet, Paulina Stadnik, Victor Colin Duance, Deborah JaneMason, Emma Jane Blain
Joint injury is the predominant risk factor for post-traumatic osteoarthritis development (PTOA). Several non-invasive mouse models mimicking human PTOA investigate molecular mechanisms of disease development; none have characterised the inflammatory response to this acute traumatic injury. Our aim was to characterise the early inflammatory phase and later degenerative component in our in vivo non-invasive murine model of PTOA induced by anterior cruciate ligament (ACL) rupture. Right knees of 12-week-old C57Bl6 mice were placed in flexion at a 30° offset position and subjected to a single compressive load (12N, 1...
February 17, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29453584/variations-in-the-attachments-of-the-medial-meniscal-anterior-horn-a-descriptive-cadaveric-study
#2
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/29424175/-experimental-study-on-staphylococcal-enterotoxin-promoting-tendon-bone-healing-after-reconstruction-of-anterior-cruciate-ligament-in-rabbits
#3
Chun-Bao Li, Chao Xue, Wei Qi, Ning Wang, Jing Xue, Xiao-Yong Wu, Juan-Li Zhu, Yang Liu, Yu-Jie Liu
OBJECTIVE: To explore highly agglutinative staphylococcin (HAS) pomoting on tendon-bone healing after reconstruction of anterior cruciate ligament(ACL) in rabbits. METHODS: Animal model of ACL reconstruction in 24 mature New Zealand white rabbits(3 months, 2.56 kg on average, either gender) were established using autologous digital long extensor tendon and randomly classified into 2 groups(HAS and control group), 12 rabbits for each group. HAS group was separately injected 0...
June 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29409066/extensor-mechanism-injury-in-the-pediatric-population-a-clinical-review
#4
William Cody Sessions, Matthew Herring, Walter H Truong
The extensor mechanism of the knee-consisting of the four muscles of the quadriceps, the quadriceps tendon, the patella, and the patellar ligament-is essential for lower extremity function during both standing and ambulation. The presence of articular cartilage and growing physes in the pediatric knee, coupled with the generation of significant tensile force, creates an opportunity for pathology unique to the pediatric population.Tibial tubercle fractures and patella injuries are quite rare, and even pediatric-trained orthopaedic surgeons may not be exposed to these injuries on a regular basis...
February 6, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29407520/the-effect-of-whole-body-vibration-on-sagittal-plane-running-mechanics-in-individuals-with-anterior-cruciate-ligament-reconstruction-a-randomized-crossover-trial
#5
Derek N Pamukoff, Melissa M Montgomery, Kevin Choe, Tyler J Moffit, Michael N Vakula
OBJECTIVE: To examine the effect of whole body vibration (WBV) on running biomechanics in individuals with anterior cruciate ligament reconstruction (ACLR). DESIGN: Single-blind randomized crossover trial. SETTING: Research laboratory. PARTICIPANTS: 20 individuals with unilateral ACLR (age=22.3 (3.3) years; mass=71.8 (15.3) kg; time since ACLR=44.9 (22.8) months; 15 females, 10 patellar tendon autograft, 7 hamstrings autograft, 3 allograft; International Knee Documentation Committee Score=83...
January 30, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29402584/anteromedial-meniscofemoral-ligament-of-the-anterior-horn-of-the-medial-meniscus-clinical-magnetic-resonance-imaging-and-arthroscopic-features
#6
Young Mo Kim, Yong-Bum Joo
PURPOSE: To describe the clinical, arthroscopic, and magnetic resonance imaging (MRI) findings of knees with anomalous insertion of the anterior horn of the medial meniscus (AHMM) into the intercondylar notch via an anteromedial meniscofemoral ligament (AMMFL). METHODS: A total of 2,503 arthroscopic knee surgeries performed from July 2003 to October 2016 were reviewed retrospectively to identify knees with an AMMFL. Medical records, arthroscopic photographs, and MRI of identified cases were analyzed...
February 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29382207/revision-anterior-cruciate-ligament-reconstruction-outcomes-in-younger-patients-medial-meniscal-pathology-and-high-rates-of-return-to-sport-are-associated-with-third-acl-injuries
#7
Kate E Webster, Julian A Feller, Alexander J Kimp, Timothy S Whitehead
BACKGROUND: There are limited data evaluating the outcomes of revision anterior cruciate ligament (ACL) reconstruction surgery in younger patients despite recent reports that the rates of graft rupture are higher in young cohorts. PURPOSE: The purpose was to explore the outcomes of revision ACL reconstruction surgery in younger patients with the specific aims of determining the rates of third ACL injury and whether knee pathology at the time of revision surgery and return to sport were associated with further injury...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29379709/diagnostic-evaluation-of-the-knee-in-the-office-setting-using-small-bore-needle-arthroscopy
#8
Karan A Patel, David E Hartigan, Justin L Makovicka, Donald L Dulle, Anikar Chhabra
Arthroscopy is currently the gold standard for diagnosing intra-articular knee pathology. Magnetic resonance imaging (MRI) can be a clinical adjunct for diagnosis; however, it is not without its shortcomings. Although highly accurate, even advanced imaging misdiagnoses the condition in 1 in 14 patients with regard to anterior cruciate ligament pathology. Previous studies have indicated that MRI fails to identify meniscal pathology when one exists in 1 of every 10 cases, and diagnoses pathology when pathology truly does not exist in 1 of every 5 patients...
January 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29362146/protruding-anterior-medial-meniscus-an-indirect-sign-of-posterior-cruciate-ligament-deficiency
#9
Anagha P Parkar, Kristiane Bleskestad, Susanne Løken, Miraude E A P M Adriaensen, Eirik Solheim
BACKGROUND: to examine if PROTruding of the Anterior Medial Meniscus (PROTAMM) could be an indirect sign of PCL deficiency by comparing PROTAMM to passive posterior tibial sagging (PSS) for chronic PCL rupture on routine MRI. METHODS: Patients with PCL reconstruction between 2011 and 2016 were included in a case control study. Primarily cases with combined ACL/PCL injury were excluded. Secondary exclusion criteria were bony fractures, medial meniscus pathology and poor quality MRIs...
February 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29350634/mri-of-popliteo-meniscal-fasciculi-of-the-knee-a-pictorial-review
#10
Marcello Zappia, Alfonso Reginelli, Vito Chianca, Michela Carfora, Francesco Di Pietto, Germano Iannella, Pier Paolo Mariani, Mariano Di Salvatore, Silvia Bartollino, Nicola Maggialetti, Salvatore Cappabianca, Luca Brunese
The popliteomeniscal fascicules (PMFs) provide the attachment of the lateral meniscus to the popliteus musculotendinous region, forming the floor and the roof the popliteal hiatus. In the second half of 1900's, some anatomic studies claim the important function of the PMF as stabilizers of the lateral meniscus; these anatomical structures work in conjunction with the popliteus musculotendinous unit to prevent excessive lateral meniscal movement and possible meniscus subluxation. A correct diagnosis of the PMFs pathology is crucial to establish the suitable surgical treatment for each patient...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29326877/natural-history-of-morquio-a-patient-with-tracheal-obstruction-from-birth-to-death
#11
Caitlin Doherty, Lauren W Averill, Mary Theroux, William G Mackenzie, Christian Pizarro, Robert W Mason, Shunji Tomatsu
Morquio A syndrome (mucopolysaccharidosis IVA, MPS IVA) is a lysosomal storage disease caused by a deficiency of N-acetylgalactosamine-6-sulfate sulfatase, resulting in systemic accumulation of the partially degraded glycosaminoglycans (GAGs), keratan sulfate and chondroitin-6-sulfate. The accumulation of these GAGs leads to distinguishing features as skeletal dysplasia with disproportionate dwarfism, short neck, kyphoscoliosis, pectus carinatum, tracheal obstruction, coxa valga, genu valgum, and joint laxity...
March 2018: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/29325838/clinical-and-radiologic-evaluation-of-medial-epicondylar-osteotomy-for-varus-total-knee-arthroplasty
#12
Jae Ang Sim, Young Gon Na, Jae Yun Go, Beom Koo Lee
BACKGROUND: In varus total knee arthroplasty (TKA), a pathologic contracture of the medial soft tissue should be released for ligament balancing. A medial epicondylar osteotomy has been performed as an alternative method for this. The purpose of this study was to demonstrate the clinical and radiologic results of medial epicondylar osteotomy for varus TKA, focusing on the union type of osteotomy site. METHODS: The study retrospectively evaluated 61 cases with a mean femorotibial angle of 10...
January 9, 2018: Knee
https://www.readbyqxmd.com/read/29322904/modular-bicompartmental-knee-arthroplasty-indications-technique-prosthetic-design-and-results
#13
R Kanna
The shifting demographics of patients with localized knee arthritis, including younger, more active patients, is a chief motivation for mounting interest in tissue preserving surgical substitutes for total knee arthroplasty (TKA). Unlinked, modular bi-compartmental knee arthroplasty (MBKA) is an emerging knee-resurfacing approach that provides a conservative alternative to TKA. Arthritis involving both patellofemoral and either medial or lateral tibiofemoral compartments, with no significant deformity or bone deficiency, preserved motion, and intact cruciate ligaments, can be effectively managed with MBKA...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29320786/imaging-of-ligamentous-structures-within-the-knee-includes-much-more-than-the-acl
#14
Kara Gaetke-Udager, Corrie M Yablon
Ligamentous structures of the knee are numerous and complex, including the anterior and posterior cruciate ligaments, medial and lateral collateral ligaments, ligaments of the posteromedial and posterolateral corners, and the anterolateral ligament. Clinical assessment after a knee injury is paramount and can direct both the clinician's choice of imaging study and the radiologist's interpretation. Imaging is crucial in that it provides additional information for diagnosis, management, and surgical planning...
January 10, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29280504/cartilage-quantitative-t2-relaxation-time-2-4-years-following-isolated-anterior-cruciate-ligament-reconstruction
#15
Xinyang Wang, Tim V Wrigley, Kim L Bennell, Yuanyuan Wang, Karine Fortin, Flavia M Cicuttini, David G Lloyd, Adam L Bryant
Cartilage T2 relaxation time in isolated anterior cruciate ligament reconstruction (ACLR) without concomitant meniscal pathology and their changes over time remain unclear. The purpose of this exploratory study was to: (i) compare cartilage T2 relaxation time (T2 values) in people with isolated ACLR at 2-3 years post-surgery (baseline) and matched healthy controls and; (ii) evaluate the subsequent 2-year change in T2 values in people with ACLR. Twenty-eight participants with isolated ACLR and nine healthy volunteers underwent knee magnetic resonance imaging (MRI) at baseline; 16 ACLR participants were re-imaged 2 years later...
December 27, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29275616/-clinical-research-of-features-of-magnetic-resonance-imaging-of-high-voltage-electrical-burns-in-limbs-at-early-stage
#16
S J Li, Z L Wang, W P Zhu, Y Xiang, J Lin, Y J Yu, P Li
Objective: To analyze the features of magnetic resonance imaging (MRI) of patients with high-voltage electrical burns in limbs at early stage. Methods: Thirty-eight patients with high-voltage electrical burns, conforming to the study criteria, were hospitalized in our unit from March 2013 to August 2016. T(1) weighted imaging (T(1)WI), T(2)WI, fat-suppression T(2)WI plain scan, and fat-suppression T(1)WI enhanced scan of MRI were performed in 78 limbs, including 56 upper limbs and 22 lower limbs at post injury hour 72...
December 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29273255/revision-multiligament-knee-reconstruction-clinical-outcomes-and-proposed-treatment-algorithm
#17
Jarret M Woodmass, Michael P O'Malley, Aaron J Krych, Patrick J Reardon, Nick R Johnson, Michael J Stuart, Bruce A Levy
PURPOSE: To (1) assess clinical outcomes of revision multiligament knee injury (MLKI) reconstruction at a minimum of 2 years' follow-up and (2) present a standardized treatment algorithm used in treating revision MLKI patients. METHODS: A retrospective review of our institution's MLKI database was performed to identify all patients who underwent revision MLKI reconstructions (≥2 ligaments reconstructed) after implementation of a standardized treatment algorithm in 2000 and had a minimum of 2 years' follow-up...
December 19, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29261554/the-utility-of-biologics-osteotomy-and-cartilage-restoration-in-the-knee
#18
Rachel M Frank, Eric J Cotter, Eric J Strauss, Andreas H Gomoll, Brian J Cole
The management of complex cartilage and meniscal pathology in young, athletic patients is extremely challenging. Joint preservation surgery is most difficult in patients with concomitant knee pathologies, including cartilage defects, meniscal deficiency, malalignment, and/or ligamentous insufficiency. Clinical decision making for these patients is further complicated by articular cartilage lesions, which often are incidental findings; therefore, treatment decisions must be based on the confirmed contribution of articular cartilage lesions to symptomatology...
January 1, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29249200/anatomical-variant-of-the-meniscus-related-to-posterior-junction-a-case-report
#19
David Sadigursky, Lucas Cortizo Garcia, Rodrigo Rêgo Martins, Gustavo Castro De Queiroz, Rogério Jamil Fernandes Carneiro, Paulo Oliveira Colavolpe
BACKGROUND: There are several reports on anatomical differences of the meniscus. However, there are only a few reports on abnormalities in both menisci and anatomical differences in anterior cruciate ligament insertions. CASE PRESENTATION: This is a case report of a 36-year-old Hispanic man presenting symptoms, including knee pain, locking, and effusion, with an anatomical abnormality of the menisci corresponding to the fusion of the posterior horns of the menisci in tandem with the insertion of the posterior meniscus fibers in the anterior cruciate ligament...
December 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29233184/effects-of-angelicae-pubescentis-and-loranthi-decotion-on-repairing-knee-joint-cartilages-in-rats
#20
Shun Lyu, Bin Ji, Wenwu Gao, Xianqi Chen, Xiaotao Xie, Junjie Zhou
BACKGROUND: Knee osteoarthritis (KOA) is a common orthopedics disease and its pathological changes at early stage are the damage and loss of articular cartilage. Traditional Chinese medicine (TCM) prescription contains multiple components and has the unique advantages of the diversity of targets.We compared the traditional Chinese medical formulae (Angelicae Pubescentis and Loranthi decotion, APLD, or Duhuo Jisheng) with a western medicine (glucosamine sulfate, GS) to treat the rat arthritis models, and tracked the outcomes...
December 12, 2017: Journal of Orthopaedic Surgery and Research
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