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https://www.readbyqxmd.com/read/29332200/simultaneous-multi-slice-accelerated-turbo-spin-echo-of-the-knee-in-pediatric-patients
#1
Sebastien Benali, Patrick R Johnston, Ali Gholipour, Monet E Dugan, Keith Heberlein, Himanshu Bhat, Sarah D Bixby
PURPOSE: To compare knee MRI performed with the integrated parallel acquisition technique (PAT) and simultaneous multislice (SMS) turbo spin echo (TSE) T2-weighted (T2w) sequences with conventional TSE sequences in pediatric patients. MATERIALS AND METHODS: This was a retrospective IRB-approved study. Seventy-four subjects (26 male, 48 female, mean age 15.3 years, range 8-20) underwent 3-T MRI of the knee with a T2w TSE pulse sequence prototype with four-fold PAT and SMS acceleration as well as the standard PAT-only accelerated sequences...
January 13, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29331302/bone-matrix-microdamage-and-vascular-changes-characterize-bone-marrow-lesions-in-the-subchondral-bone-of-knee-osteoarthritis
#2
Dzenita Muratovic, David M Findlay, Flavia M Cicuttini, Anita E Wluka, Yea-Rin Lee, Julia S Kuliwaba
INTRODUCTION: Bone marrow lesions (BMLs) in the subchondral bone in osteoarthritis (OA) are suggested to be multifactorial, although the pathogenic mechanisms are unknown. Bone metabolism and cardiovascular risk factors associate with BML in epidemiologic studies. However, there are no studies at the tissue level investigating the relationship between these processes and BML. The aim of this study was to investigate the relationship between BMLs in the tibial plateau (TP) of knee OA and bone matrix microdamage, osteocyte density and vascular changes...
January 10, 2018: Bone
https://www.readbyqxmd.com/read/29330745/-treatment-of-rotational-malalignment-of-the-lower-leg
#3
REVIEW
P Keppler
BACKGROUND: Rotational malalignment after intramedullary nailing of tibial shaft fractures is not uncommon. In-toeing and out-toeing conditions in children are often the reason for orthopedic and traumatological medical consultation. OBJECTIVE: Evaluation of diagnostic modalities and therapeutic options for rotational malalignment in relationship to the patient's age. Surgical indications and efficacy of specific surgical techniques. MATERIAL AND METHODS: Systematic literature search in the German Institute for Medical Documentation and Information (DIMDI) and MEDLINE and evaluation of the currently published articles...
January 12, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29330100/osteoarthritis-year-in-review-2017-updates-on-imaging-advancements
#4
REVIEW
Nima Hafezi-Nejad, Shadpour Demehri, Ali Guermazi, John A Carrino
OBJECTIVE: This narrative review covers original research publications related to imaging advancements in osteoarthritis (OA) published in the English language between 1st April 2016 and 30th April 2017. METHODS: Relevant human studies (excluding pre-clinical and in-vitro studies), were searched and selected from PubMed database using the search terms of "osteoarthritis (OA)" in combination with "radiography", "magnetic resonance imaging (MRI)", "computed tomography (CT)", "ultrasound", "positron emission tomography (PET)," "single-photon emission computed tomography (SPECT)," and "scintigraphy"...
January 9, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29329888/associations-between-cartilage-proteoglycan-density-and-patient-outcomes-12months-following-anterior-cruciate-ligament-reconstruction
#5
Brian Pietrosimone, Daniel Nissman, Darin A Padua, J Troy Blackburn, Matthew S Harkey, Robert A Creighton, Ganesh M Kamath, Kaitlin Healy, Randy Schmitz, Jeffrey B Driban, Steve W Marshall, Joanne M Jordan, Jeffrey T Spang
BACKGROUND: Lower proteoglycan density (PGD) of the articular cartilage may be an early marker of osteoarthritis following anterior cruciate ligament (ACL) reconstruction (ACL-R). The purpose this study was to determine associations between the Knee Injury and Osteoarthritis Outcomes Score (KOOS) and PGD of the articular cartilage in the femur and tibia 12-months following ACL-R. METHODS: We evaluated KOOS pain, symptoms, function in activities of daily living (ADL), function in sport and recreation (Sport), and quality of life (QOL), as well as PGD using T1rho magnetic resonance imaging in 18 individuals 12...
January 9, 2018: Knee
https://www.readbyqxmd.com/read/29329471/diagnosing-meniscal-pathology-and-understanding-how-to-evaluate-a-postoperative-meniscus-based-on-the-operative-procedure
#6
Monica Tafur, Linda Probyn, Jaskarndip Chahal, Lawrence M White
Magnetic resonance imaging (MRI) represents the preferred noninvasive imaging technique to diagnose meniscal pathology in the pre- and postoperative setting. Furthermore, characterization of meniscal tissue MR properties has been possible by the development of advanced MRI techniques. Suspected meniscal tears are a frequent indication for MRI and the International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS) classification system has been developed to facilitate accurate and uniform reporting of such meniscal tears...
January 12, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29327544/-clinical-outcome-of-arthroscopic-anterior-cruciate-ligament-remnant-preserving-reconstruction
#7
Min Wei, Juan-Li Zhu, Yang Liu
OBJECTIVE: To evaluate the clinical outcome of arthroscopic anterior cruciate ligament(ACL)reconstruction with remnant cuff preservation. METHODS: There were 42 cases of ACL tear were performed reconstruction in our department from January 2012 to December 2014. The patients were 28.4 years old on average, 17 males and 25 females. ACL reconstruction was performed under arthroscopy with remnant cuff preservation. The stability of knee was assessed by Lachman test and anterior drawer test...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29325883/a-functional-neuroimaging-study-of-expectancy-effects-on-pain-response-in-patients-with-knee-osteoarthritis
#8
Randy L Gollub, Irving Kirsch, Nasim Maleki, Ajay D Wasan, Robert R Edwards, Yiheng Tu, Ted J Kaptchuk, Jian Kong
Placebo treatments and healing rituals share much in common, such as the effects of expectancy, and have been used since the beginning of human history to treat pain. Previous mechanistic neuroimaging studies investigating the effects of expectancy on placebo analgesia have used young, healthy volunteers. Using functional magnetic resonance imaging (fMRI), we aimed to investigate the neural mechanisms by which expectancy evokes analgesia in older adults living with a chronic pain disorder and determine whether there are interactions with active treatment...
January 8, 2018: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/29324530/early-results-of-single-plug-autologous-osteochondral-grafting-for-osteochondritis-dissecans-of-the-capitellum-in-adolescents
#9
Donald S Bae, Eitan M Ingall, Patricia E Miller, Katherine Eisenberg
BACKGROUND: Osteochondral autologous transplantation surgery (OATS) has been advocated for unstable osetochondritis dissecans (OCD) lesions of the adolescent capitellum, though limited information is available regarding clinical and radiographic results in North American patients. We hypothesize that single-plug OATS is safe and effective in alleviating pain and restoring function in unstable OCD. METHODS: Twenty-eight patients with unstable OCD treated with single-plug OATS were evaluated...
January 10, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29322332/evaluation-of-age-dependent-morphometrics-of-the-meniscofemoral-ligaments-in-reference-to-the-posterior-cruciate-ligament-in-routine-mri
#10
Sebastian Röhrich, Franz Kainberger, Lena Hirtler
OBJECTIVES: To quantify the morphological correlation between the posterior cruciate ligament (PCL) and the meniscofemoral ligaments (MFLs), to propose normal ranges for different age populations, and to define guidelines for correct identification and differentiation of MFLs in routine MRI. METHODS: Three hundred forty-two subjects were included retrospectively and subdivided into five age groups. Morphometrics of the PCL and the MFLs were measured on standard MRI in the sagittal, coronal, and axial planes...
January 10, 2018: European Radiology
https://www.readbyqxmd.com/read/29320786/imaging-of-ligamentous-structures-within-the-knee-includes-much-more-than-the-acl
#11
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/29318429/effect-of-intra-articular-injection-of-intermediate-weight-hyaluronic-acid-on-hip-and-knee-cartilage-in-vivo-evaluation-using-t2-mapping
#12
Giulio Ferrero, Luca Maria Sconfienza, Francesco Fiz, Emanuele Fabbro, Angelo Corazza, Daniele Dettore, Davide Orlandi, Carlo Castellazzo, Stefano Tornago, Giovanni Serafini
OBJECTIVES: We used T2 mapping to quantify the effect of intra-articular hyaluronic acid administration (IAHAA) on cartilage with correlation to clinical symptoms. METHODS: One hundred two patients with clinical and MRI diagnosis of hip or knee grade I-III chondropathy were prospectively included. All patients received a standard MRI examination of the affected hip/knee (one joint/patient) and T2-mapping multiecho sequence for cartilage evaluation. T2 values of all slices were averaged and used for analysis...
January 9, 2018: European Radiology
https://www.readbyqxmd.com/read/29316597/radiographic-classification-systems-for-osteonecrosis-of-the-knee-a-review-of-literature
#13
Assem A Sultan, William A Cantrell, Morad Chughtai, Prem N Ramkumar, Anton Khlopas, Jared M Newman, Nipun Sodhi, Suela Lamaj, Timothy C Wagner, Linsen T Samuel, Michael A Mont
Knee osteonecrosis is a rare, yet debilitating disease that can lead to knee joint destruction and can be associated with significant pain and disability. Various imaging modalities have different roles in the diagnosis, staging, management, and determination of the prognosis in knee osteonecrosis. Plain radiographic images can show gross joint destruction and secondary arthritic changes. In addition, magnetic resonance imaging (MRI) has become the gold-standard imaging modality to diagnose osteonecrosis. Multiple classification systems have been developed for knee osteonecrosis based on these imaging modalities...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29312850/anterolateral-rotatory-instability-in-vivo-correlates-tunnel-position-after-anterior-cruciate-ligament-reconstruction-using-bone-patellar-tendon-bone-graft
#14
Yasutaka Tashiro, Ken Okazaki, Koji Murakami, Hirokazu Matsubara, Kanji Osaki, Yukihide Iwamoto, Yasuharu Nakashima
AIM: To quantitatively assess rotatory and anterior-posterior instability in vivo after anterior cruciate ligament (ACL) reconstruction using bone-patellar tendon-bone (BTB) autografts, and to clarify the influence of tunnel positions on the knee stability. METHODS: Single-bundle ACL reconstruction with BTB autograft was performed on 50 patients with a mean age of 28 years using the trans-tibial (TT) (n = 20) and trans-portal (TP) (n = 30) techniques. Femoral and tibial tunnel positions were identified from the high-resolution 3D-CT bone models two weeks after surgery...
December 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29307035/juvenile-idiopathic-arthritis-magnetic-resonance-imaging-of-the-clinically-unaffected-knee
#15
E Charlotte van Gulik, Mendy M Welsink-Karssies, J Merlijn van den Berg, Dieneke Schonenberg-Meinema, Koert M Dolman, Anouk M Barendregt, Charlotte M Nusman, Mario Maas, Taco W Kuijpers, Robert Hemke
BACKGROUND: Synovial thickening detected on magnetic resonance imaging (MRI) is present in a significant number of children with clinically inactive juvenile idiopathic arthritis (JIA). OBJECTIVE: To evaluate patient characteristics and disease activity parameters in a cohort of children with clinically inactive JIA, both with and without synovial thickening, in order to clarify the observed discrepancy between clinical and MRI assessments. MATERIALS AND METHODS: We prospectively enrolled 52 clinically inactive JIA patients (median age 13...
January 6, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29305289/prediction-models-to-improve-the-diagnostic-value-of-plain-radiographs-in-children-with-complete-discoid-lateral-meniscus
#16
Yong-Beom Park, Chul-Won Ha, Jae Won Jang, Manyoung Kim, Han-Jun Lee, Yong-Geun Park
PURPOSE: To develop prediction models to improve the diagnostic utility of plain radiographs for the diagnosis of complete discoid lateral meniscus by combining previously reported radiographic findings. METHODS: Patients ages 5 to 16 years with complete discoid lateral meniscus confirmed by arthroscopy or magnetic resonance imaging were included. Patients with insufficient radiographs were excluded. Normal control subjects were randomly sampled by age and sex matching...
January 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29303366/current-clinical-radiological-and-treatment-perspectives-of-patellofemoral-pain-syndrome
#17
Aishwarya Gulati, Christopher McElrath, Vibhor Wadhwa, Jay P Shah, Avneesh Chhabra
Anterior knee pain in active young adults is commonly related to patellofemoral (PF) pain syndrome (PFPS), which can be broadly classified into patellar malalignment and patellar maltracking. PFPS can be caused by a host of miserable malalignments, such as excessive femoral antetorsion, tibial varus / external rotation, knee valgus and pes planus. Radiographic, CT and MRI evaluations are commonly obtained to further elucidate the malalignment and maltracking abnormalities and exclude other related differentials, such as lateral meniscus tear, extensor tendon tear, anterior tenosynovial giant cell tumor and plica syndrome...
January 5, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29301144/imaging-of-tendons-of-the-knee-much-more-than-just-the-extensor-mechanism
#18
Jad S Husseini, Connie Y Chang, William E Palmer
The tendons of the knee play a critical role in the motion and stability of the knee. Knee pain, a common clinical complaint, can frequently be attributed to pathology of these structures. While the cornerstones of the radiological evaluation of the knee are radiography and magnetic resonance imaging, ultrasound can also play an important diagnostic role and can be useful for guided interventional procedures. Understanding the utility of each modality in the assessment for tendon pathology and a familiarity with the normal and abnormal imaging appearance of these structures are crucial for accurate diagnosis...
January 4, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29299499/measurement-of-posterior-tibial-slope-using-magnetic-resonance-imaging
#19
Elham Karimi, Mohsen Norouzian, Ali Birjandinejad, Reza Zandi, Hadi Makhmalbaf
Background: Posterior tibial slope (PTS) is an important factor in the knee joint biomechanics and one of the bone features, which affects knee joint stability. Posterior tibial slope has impact on flexion gap, knee joint stability and posterior femoral rollback that are related to wide range of knee motion. During high tibial osteotomy and total knee arthroplasty (TKA) surgery, proper retaining the mechanical and anatomical axis is important. The aim of this study was to evaluate the value of posterior tibial slope in medial and lateral compartments of tibial plateau and to assess the relationship among the slope with age, gender and other variables of tibial plateau surface...
November 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29287949/comparison-of-clinical-outcomes-after-anterior-cruciate-ligament-reconstruction-using-a-hybrid-graft-versus-a-hamstring-autograft
#20
Hong-De Wang, Shi-Jun Gao, Ying-Ze Zhang
PURPOSE: This study aimed to compare the clinical outcomes of patients who underwent anterior cruciate ligament (ACL) reconstruction with a hybrid graft versus an autograft after 3 years of follow-up. METHODS: Among 57 patients with an ACL injury who underwent ACL reconstruction, 28 patients received a hybrid graft (gracilis and semitendinosus tendon autograft plus a soft tissue allograft) and 29 patients received an autograft (gracilis and semitendinosus tendon autograft)...
December 26, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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