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https://www.readbyqxmd.com/read/28648920/ultrasound-assessment-of-human-meniscus
#1
Tuomas Viren, Juuso T Honkanen, Elvis K Danso, Lassi Rieppo, Rami K Korhonen, Juha Töyräs
The aim of the present study was to evaluate the applicability of ultrasound imaging to quantitative assessment of human meniscus in vitro. Meniscus samples (n = 26) were harvested from 13 knee joints of non-arthritic human cadavers. Subsequently, three locations (anterior, center and posterior) from each meniscus were imaged with two ultrasound transducers (frequencies 9 and 40 MHz), and quantitative ultrasound parameters were determined. Furthermore, partial-least-squares regression analysis was applied for ultrasound signal to determine the relations between ultrasound scattering and meniscus integrity...
June 22, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28647841/anterior-cruciate-ligament-tibial-insertion-site-is-elliptical-or-triangular-shaped-in-healthy-young-adults-high-resolution-3-t-mri-analysis
#2
Yasutaka Tashiro, Gian Andrea Lucidi, Tom Gale, Kanto Nagai, Elmar Herbst, James J Irrgang, Yasuharu Nakashima, William Anderst, Freddie H Fu
PURPOSE: To clarify the morphology of anterior cruciate ligament (ACL) tibial insertion site in healthy young knees using high-resolution 3-T MRI. METHODS: Subjects were 50 ACL-reconstructed patients with a mean age of 21.4 ± 6.8 years. The contralateral healthy knees were scanned using high-resolution 3-T MRI. The tibial insertion sites of the anteromedial (AM) and posterolateral (PL) bundle fibres, and the ACL attachment on the anterior horn of lateral meniscus (AHLM) were segmented from the MR images, and 3D models were reconstructed to evaluate the morphology...
June 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28633185/erratum-the-prevalence-of-cruciate-ligament-and-meniscus-knee-injury-in-young-adults-and-associations-with-gender-body-mass-index-and-height-a-large-cross-sectional-study
#3
Ran Thein, Oded Hershkovich, Barak Gordon, Gideon Burstein, Shay Tenenbaum, Estela Derazne, Dorit Tzur, Ari Shamis, Arnon Afek, Yitshak Kreiss
No abstract text is available yet for this article.
June 20, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28615116/an-unusual-presentation-of-synovial-chondromatosis-of-the-knee-in-a-10-year-old-girl
#4
Hyung Joon Cho, Jung Dong Suh
Synovial chondromatosis commonly occurs in the anterior compartment of the knee joint, predominantly in middle-aged men. It is relatively unusual in female children and is rarely encountered in the synovium beneath the meniscus. The present report describes a rare case of synovial chondromatosis that developed in the synovium just inferior to both menisci of the right knee in a 10-year-old girl. At this unusual age and location, there is a greater probability of missed diagnosis, due to the lack of definite informative incidence, and difficulty in finding the lesions during arthroscopic examinations...
June 11, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28610776/two-stage-late-reconstruction-with-a-fresh-large-osteochondral-shell-allograft-transplantation-flocsat-for-a-large-ostechondral-defect-in-a-non-union-after-a-lateral-tibia-plateau-fracture-2-year-follow-up
#5
C Krettek, J Clausen, M Omar, S Noack, C Neunaber
This is the description of a 58-year-old female patient presenting 8 months after a horse riding accident with significant pain and inability to walk independently. Imaging revealed a large osseous defect of the lateral tibia plateau which was not united posteriorly. The patient refused knee replacement and we developed a patient specific two-step procedure for her. Step 1: Filling of the defect with a large cortico-cancellous autograft from the posterior iliac crest; step 2: Transplantation of a fresh large osteochondral shell allograft (FLOCSAT)...
May 17, 2017: Injury
https://www.readbyqxmd.com/read/28610596/complete-human-serum-maintains-viability-and-chondrogenic-potential-of-human-synovial-stem-cells-suitable-conditions-for-transplantation
#6
Mitsuru Mizuno, Hisako Katano, Koji Otabe, Keiichiro Komori, Yuji Kohno, Shizuka Fujii, Nobutake Ozeki, Masafumi Horie, Kunikazu Tsuji, Hideyuki Koga, Takeshi Muneta, Ichiro Sekiya
BACKGROUND: In our clinical practice, we perform transplantations of autologous synovial mesenchymal stem cells (MSCs) for cartilage and meniscus regenerative medicine. One of the most important issues to ensuring clinical efficacy involves the transport of synovial MSCs from the processing facility to the clinic. Complete human serum (100% human serum) is an attractive candidate material in which to suspend synovial MSCs for their preservation during transport. The purpose of this study was to investigate whether complete human serum maintained MSC viability and chondrogenic potential and to examine the optimal temperature conditions for the preservation of human synovial MSCs...
June 13, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28610433/reoperation-rates-after-combined-anterior-cruciate-ligament-and-anterolateral-ligament-reconstruction-a-series-of-548-patients-from-the-santi-study-group-with-a-minimum-follow-up-of-2-years
#7
Mathieu Thaunat, Gilles Clowez, Adnan Saithna, Maxime Cavalier, Eric Choudja, Thais D Vieira, Jean-Marie Fayard, Bertrand Sonnery-Cottet
BACKGROUND: Early clinical results of anterolateral ligament (ALL) reconstruction are promising, but concerns exist due to high rates of complications after other types of lateral extra-articular tenodesis. The rate of surgery after combined anterior cruciate ligament (ACL) and ALL reconstruction is not known. PURPOSE: To determine the rate of reoperation after combined ACL and ALL reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28608727/osteoarthritis-of-the-anterior-cruciate-ligament-and-medial-tibial-plateau-a-cadaveric-study
#8
Jessica Immonen, Chris Siefring, Luke Sanders
The objective of this study was to analyze morphometric anatomy and damages with aging in cadaveric knee specimens specific to the cruciate ligaments, the articular cartilage of the tibial plateau, and the menisci. Morphometric analyses to cadaveric anatomy of the knee were performed using Image-Pro® software on 3 age populations: <70 years old, 70 to 79 years old, and ≥80 years old. An average thickness of the cruciate ligaments was assessed with 5 circumferential measurements per specimen using nylon thread...
June 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28600690/patients-older-than-40-years-with-unilateral-occupational-claims-for-new-shoulder-and-knee-symptoms-have-bilateral-mri-changes
#9
Tiffany C Liu, Nina Leung, Leonard Edwards, David Ring, Edward Bernacki, Melissa D Tonn
BACKGROUND: Minor events that occur in the workplace sometimes are evaluated with MRI, which may reveal age-related changes in the symptomatic body part. These age-related changes are often ascribed to the event. However, evidence of similar or worse pathophysiology in the contralateral joint would suggest that the symptoms might be new, but the pathophysiology is not. QUESTIONS/PURPOSES: Using a convenience sample of occupational injury claimants with bilateral MRI to evaluate unilateral knee or shoulder symptoms ascribed to a single event at work, we sought to determine whether MRI findings of the shoulder and knee are more often congruent or incongruent with new unilateral symptoms...
June 9, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28599660/does-the-location-of-placement-of-meniscal-sutures-have-a-clinical-effect-in-the-all-inside-repair-of-meniscocapsular-tears
#10
Uğur Tiftikçi, Sancar Serbest
BACKGROUND: Meniscocapsular separation (MCS) is a lesion of the area which is attached from the peripheral section of the meniscus to the capsule and is seen less often than other meniscus injuries. The aim of this study was to investigate which of the different side applications of all-inside MCS repair of the meniscus was better in respect of clinical and functional results. METHODS: In this retrospective study, 53 patients with MCS pattern in their knee joints were treated with arthroscopic meniscus repair made with the all-inside method...
June 9, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28593387/increased-odds-of-patient-reported-success-at-2%C3%A2-years-after-anterior-cruciate-ligament-reconstruction-in-patients-without-cartilage-lesions-a-cohort-study-from-the-swedish-national-knee-ligament-register
#11
Eric Hamrin Senorski, Eduard Alentorn-Geli, Volker Musahl, Freddie Fu, Ferid Krupic, Neel Desai, Olof Westin, Kristian Samuelsson
PURPOSE: To investigate whether the surgical technique of single-bundle anterior cruciate ligament (ACL) reconstruction, the visualization of anatomic surgical factors and the presence or absence of concomitant injuries at primary ACL reconstruction are able to predict patient-reported success and failure. The hypothesis of this study was that anatomic single-bundle surgical procedures would be predictive of patient-reported success. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the period of 1 January 2005 through 31 December 2014...
June 7, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28586544/segmental-and-regional-quantification-of-3d-cellular-density-of-human-meniscus-from-osteoarthritic-knee
#12
Ibrahim Fatih Cengiz, Hélder Pereira, José Miguel Pêgo, Nuno Sousa, João Espregueira-Mendes, Joaquim Miguel Oliveira, Rui Luís Reis
The knee menisci have important roles in the knee joint. Complete healing of the meniscus remains a challenge in the clinics. Cellularity is one of the most important biological parameters that must be taken into account in regenerative strategies. However, knowledge on the 3D cellularity of the human meniscus is lacking in the literature. The aim of this study was to quantify the 3D cellular density of human meniscus from the osteoarthritic knee in a segmental and regional manner with respect to laterality...
June 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28584927/corr-insights-%C3%A2-rotational-laxity-control-by-the-anterolateral-ligament-and-the-lateral-meniscus-is-dependent-on-knee-flexion-angle-a-cadaveric-biomechanical-study
#13
Geert Pagenstert
No abstract text is available yet for this article.
June 5, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28582908/the-collagen-microstructural-changes-of-rat-menisci-and-tibiofemoral-cartilages-under-the-influence-of-mechanical-loading-an-in-vitro-wear-test-of-whole-joints
#14
Haoliuyang Cai, Zhixiu Hao, Liying Xiao, Chao Wan, Lingying Tong
BACKGROUND: Knee osteoarthritis (OA) is suggested to be induced by multi-factors, and mechanical environment is regarded as a risky factor. OBJECTIVE: To investigate the effect of isolated mechanical factor on cartilage. METHODS: An active wear test system was designed to perform parameters-controlled in vitro wear tests on rat knee joints with specific load magnitude, flexion-extension angle, and movement frequency. Six hind limbs of 9-month-old male Sprague-Dawley rats, with an additional spring on the medial side, were worn by using the custom-designed apparatus...
May 19, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28580627/age-related-modulation-of-angiogenesis-regulating-factors-in-the-swine-meniscus
#15
Alessia Di Giancamillo, Daniela Deponti, Silvia Modina, Irene Tessaro, Cinzia Domeneghini, Giuseppe Maria Peretti
An in-depth knowledge of the native meniscus morphology and biomechanics in its different areas is essential to develop an engineered tissue. Meniscus is characterized by a great regional variation in extracellular matrix components and in vascularization. Then, the aim of this work was to characterize the expression of factors involved in angiogenesis in different areas during meniscus maturation in pigs. The menisci were removed from the knee joints of neonatal, young and adult pigs, and they were divided into the inner, intermediate and outer areas...
June 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28580271/meniscal-allograft-transplantation-with-soft-tissue-in-bone-socket-fixation-arthroscopic-technique-with-technical-pearls
#16
Troy A Roberson, Douglas J Wyland
Meniscal allograft transplantation may slow the progression of degenerative changes in the meniscus-deficient knee. The current literature suggests patients can experience good early to mid-term satisfaction and patient-reported outcomes with reasonable expectations of return to work. More ambitious applications in athletes have also shown good results although long-term data are lacking. Traditionally, meniscal allograft transplantation has been considered an open procedure with incorporation of bone blocks from the allograft source...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28580268/endoscopic-resection-of-medial-extra-articular-cysts-of-the-knee
#17
Tun Hing Lui
Although most of the parameniscal cysts are very small and asymptomatic, some of them can present with a painful mass or snapping knee. Because parameniscal cysts are almost always associated with horizontal meniscal tears, arthroscopic partial meniscectomy of the involved part of meniscus and intra-articular cyst drainage has become the most accepted procedure. However, arthroscopic cyst decompression through partial meniscectomy to the meniscocapsular junction to expose the communication between the cyst and the knee joint may sacrifice some of the healthy parts of the meniscus especially when meniscal tear is peripheral...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28580244/arthroscopic-technique-for-isolated-posterolateral-rotational-instability-of-the-knee
#18
Yasuo Ohnishi, Cecilia Pascual-Garrido, Hiroto Kumagae, Akinori Sakai, Soshi Uchida
Isolated posterolateral corner injury is an uncommon injury that could be a source of unexplained knee pain and dysfunction. Most of these patients present instability caused by concomitant ligament injuries. Numerous studies have shown open approach posterolateral repair or reconstruction surgeries to restore posterolateral rotational stability. Still, there is a certain population of patients who present posterolateral rotation instability without significant injury to the fibular collateral ligament, popliteal fibular ligament, and popliteus tendon...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28580243/reconstruction-of-the-popliteomeniscal-fascicles-for-treatment-of-recurrent-subluxation-of-the-lateral-meniscus
#19
Jun Suganuma, Yutaka Inoue, Hideaki Tani, Tadashi Sugiki, Tomoki Sassa, Reo Shibata
Recurrent subluxation of the lateral meniscus is characterized by episodes of mechanical locking of the knee joint. To completely preclude the posterior segment of the lateral meniscus from undergoing anterior dislocation during deep knee flexion, the structures to which it is attached need to be relatively taut. The posterosuperior popliteomeniscal fascicle retains its tension during deep knee flexion; therefore, reconstruction of the posterosuperior and anteroinferior popliteomeniscal fascicles was performed with an autograft harvested from the iliotibial band...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28574418/clinical-study-on-the-arthroscopic-refreshing-treatment-of-anterior-cruciate-ligament-injury-combined-with-stable-medial-meniscus-ramp-injury
#20
J Yang, K Guan, J Z Wang
This study sought to investigate the clinical efficacy of arthroscopic refreshing treatment of anterior cruciate ligament (ACL) injury combined with stable medial meniscus ramp injury. Sixty-eight patients treated between January 2010 and January 2014 were included, and their clinical data were retrospectively analyzed. All patients, after being treated using ACL reconstruction, were divided into 2 groups according to meniscus injury treatment method. The observation group (31 cases) was treated by arthroscopic refreshing, which removed the tissue on both sides of the tear edge using a cutting knife, while the control group (37 cases) was treated using Fast-fix sutures...
June 1, 2017: Journal of Musculoskeletal & Neuronal Interactions
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