keyword
MENU ▼
Read by QxMD icon Read
search

(Anterior cruciate ligament) AND imaging

keyword
https://www.readbyqxmd.com/read/28090444/bone-marrow-edema-like-lesions-bmels-are-associated-with-higher-t1%C3%AF-and-t2-values-of-cartilage-in-anterior-cruciate-ligament-acl-reconstructed-knees-a-longitudinal-study
#1
Jingshan Gong, Valentina Pedoia, Luca Facchetti, Thomas M Link, C Benjamin Ma, Xiaojuan Li
BACKGROUND: To evaluate the longitudinal changes of bone marrow edema-like lesions (BMELs) in patients after anterior cruciate ligament (ACL) reconstruction and to investigate the effect of BMELs on cartilage matrix composition changes measured using MR T1ρ and T2 mapping. METHODS: Patients with acute ACL tear were enrolled in a prospective study. MR imaging was performed at baseline (before surgeries) and at 6-month, 1-year and 2-year after ACL reconstruction...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090443/topographical-and-depth-dependent-glycosaminoglycan-concentration-in-canine-medial-tibial-cartilage-3-weeks-after-anterior-cruciate-ligament-transection-surgery-a-microscopic-imaging-study
#2
Daniel Mittelstaedt, David Kahn, Yang Xia
BACKGROUND: Medical imaging has become an invaluable tool to diagnose damage to cartilage. Depletion of glycosaminoglycans (GAG) has been shown to be one of the early signs of cartilage degradation. In order to investigate the topographical changes in GAG concentration caused by the anterior cruciate ligament transection (ACLT) surgery in a canine model, microscopic magnetic resonance imaging (µMRI) and microscopic computed tomography (µCT) were used to measure the GAG concentration with correlation from a biochemical assay, inductively coupled plasma optical emission spectroscopy (ICP-OES), to understand where the topographical and depth-dependent changes in the GAG concentration occur...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090441/principal-component-analysis-t1%C3%AF-voxel-based-relaxometry-of-the-articular-cartilage-a-comparison-of-biochemical-patterns-in-osteoarthritis-and-anterior-cruciate-ligament-subjects
#3
Valentina Pedoia, Colin Russell, Allison Randolph, Xiaojuan Li, Sharmila Majumdar
BACKGROUND: Quantitative MR, including T1ρ mapping, has been extensively used to probe early biochemical changes in knee articular cartilage of subjects with osteoarthritis (OA) and others at risk for cartilage degeneration, such as those with anterior cruciate ligament (ACL) injury and reconstruction. However, limited studies have been performed aimed to assess the spatial location and patterns of T1ρ. In this study we used a novel voxel-based relaxometry (VBR) technique coupled with principal component analysis (PCA) to extract relevant features so as to describe regional patterns and to investigate their similarities and differences in T1ρ maps in subjects with OA and subjects six months after ACL reconstruction (ACLR)...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28089224/loading-of-the-medial-meniscus-in-the-acl-deficient-knee-a-multibody-computational-study
#4
Trent M Guess, Swithin Razu
The menisci of the knee reduce tibiofemoral contact pressures and aid in knee lubrication and nourishment. Meniscal injury occurs in half of knees sustaining anterior cruciate ligament injury and the vast majority of tears in the medial meniscus transpire in the posterior horn region. In this study, computational multibody models of the knee were derived from medical images and passive leg motion for two female subjects. The models were validated against experimental measures available in the literature and then used to evaluate medial meniscus contact force and internal hoop tension...
January 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28064350/a-descriptive-study-of-potential-effect-of-anterior-tibial-translation-femoral-tunnel-and-anterior-cruciate-ligament-graft-inclination-on-clinical-outcome-and-degenerative-changes
#5
Žiga Snoj, Oskar Zupanc, Klemen Stražar, Vladka Salapura
INTRODUCTION: There is no evidence that anatomically correct anterior cruciate ligament reconstruction (ACLR) offers lower rate of degenerative changes development or that it would lead to a better outcome. The significance and understanding of the abnormal anterior tibial translation (ATT) in ACLR patients is yet to be established. METHODS: Sixty subjects (40 patients at 5.9 years after ACLR, 20 healthy controls) underwent 3 T MRI. Quantitative cartilage T2 mapping and morphological whole organ magnetic resonance imaging score (WORMS) evaluation was performed...
January 7, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28060534/is-it-necessary-to-repair-stable-ramp-lesions-of-the-medial-meniscus-during-anterior-cruciate-ligament-reconstruction
#6
Xin Liu, Hui Zhang, Hua Feng, Lei Hong, Xue-Song Wang, Guan-Yang Song
BACKGROUND: A special type of meniscal lesion involving the peripheral attachment of the posterior horn of the medial meniscus (PHMM), termed a "ramp lesion," is commonly associated with an anterior cruciate ligament (ACL) injury. However, its treatment is still controversial. Recently, stable ramp lesions treated with abrasion and trephination alone have been shown to have good clinical outcomes after ACL reconstruction. HYPOTHESIS: Stable ramp lesions treated with abrasion and trephination alone during ACL reconstruction will result in similar clinical outcomes compared with those treated with surgical repair...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28053391/a-prospective-study-to-evaluate-the-clinico-radiological-outcomes-of-arthroscopic-single-bundle-versus-double-bundle-anterior-cruciate-ligament-reconstruction
#7
Ashish Devgan, Rajesh Rohilla, Amanpreet Singh, Milind Tanwar, Radhika Devgan, Karan Siwach
INTRODUCTION: The aim of the study was to compare clinical and radiological outcomes of arthroscopic single-bundle versus double-bundle anterior cruciate ligament (ACL) reconstruction. PATIENT AND METHODS: 60 patients with isolated ACL injury were divided into single bundle (SB) (n = 30) and double bundle (DB) reconstruction groups (n = 30) and operated between July 2009 and July 2012. Outcome evaluation was performed using GNRB arthrometer, International Knee Documentation Committee & Lysholm scale...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28050574/a-validation-study-of-a-novel-3-dimensional-mri-modeling-technique-to-identify-the-anatomic-insertions-of-the-anterior-cruciate-ligament
#8
Catherine Hui, Yeli Pi, Vimarsha Swami, Myles Mabee, Jacob L Jaremko
BACKGROUND: Anatomic single bundle anterior cruciate ligament (ACL) reconstruction is the current gold standard in ACL reconstructive surgery. However, placement of femoral and tibial tunnels at the anatomic center of the ACL insertion sites can be difficult intraoperatively. We developed a "virtual arthroscopy" program that allows users to identify ACL insertions on preoperative knee magnetic resonance images (MRIs) and generates a 3-dimensional (3D) bone model that matches the arthroscopic view to help guide intraoperative tunnel placement...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28045870/preoperative-planning-for-acl-revision-surgery
#9
Leonardo Osti, Matteo Buda, Raffaella Osti, Leo Massari, Nicola Maffulli
The number of patients undergoing revision surgery following failure of anterior cruciate ligament (ACL) reconstruction has increased over the recent past, following the overall increased number of primary ACL reconstruction performed. Failure of primary ACL reconstruction can be attributed to technical errors, biological failures, or new traumatic injuries. Technical errors include femoral and/or tibial tunnels malposition, untreated associated ligaments insufficiencies, uncorrected lower limb malalignment, and graft fixation failures...
March 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/28045756/influence-of-age-on-healing-capacity-of-acute-tears-of-the-anterior-cruciate-ligament-based-on-magnetic-resonance-imaging-assessment
#10
Hidetoshi Ihara, Tsutomu Kawano
OBJECTIVE: The purpose of this study was to evaluate the influence of patient age on the effects of conservative treatment of the anterior cruciate ligament (ACL). METHODS: A total of 102 consecutive patients with acute ACL injury were allowed to heal without surgery. Final magnetic resonance imaging images of the ACL were classified from grade I, indicating good morphological recovery, to grade IV, indicating poor recovery. Chi-square analysis was used to determine significant differences in the incidence of grades I and II among those less than 20 versus those 20 years or more of age...
December 29, 2016: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28039095/quantitative-in-vivo-assessment-of-bone-microarchitecture-in-the-human-knee-using-hr-pqct
#11
Andres Kroker, Ying Zhu, Sarah L Manske, Rhamona Barber, Nicholas Mohtadi, Steven K Boyd
OBJECTIVE: High-resolution peripheral quantitative computed tomography (HR-pQCT) is a novel imaging modality capable of visualizing bone microarchitecture in vivo at human peripheral sites such as the distal radius and distal tibia. This research has extended the technology to provide a non-invasive assessment of bone microarchitecture at the human knee by establishing new hardware, imaging protocols and data analysis. DESIGN: A custom leg holder was developed to stabilize a human knee centrally within a second generation HR-pQCT field of view...
December 27, 2016: Bone
https://www.readbyqxmd.com/read/28036159/comparison-in-knee-osteoarthritis-joint-damage-patterns-among-individuals-with-an-intact-complete-and-partial-anterior-cruciate-ligament-rupture
#12
Victoria L Johnson, Ali Guermazi, Frank W Roemer, David J Hunter
AIM: The aim of this study was to examine the difference in the pattern of articular damage in persons with either a partial anterior cruciate ligament (ACL) tear; a complete ACL tear or no ACL tear. METHODS: Our study included 600 individuals (of the 600 individuals, 25 with a partial, 12 with a complete ACL tear and 563 with no ACL tear) from the progression sub-cohort of the Osteoarthritis Initiative. Individuals had a mean age of 61.8 years (range 45-79 years)...
December 30, 2016: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28031492/tibial-plateau-slopes-in-indian-patients-with-or-without-anterior-cruciate-ligament-injury-a-magnetic-resonance-imaging-study
#13
Shyam Sundar, Sarthak Patnaik, Bobur Ubaydullaev, Vinodh Kolandavelu, David Rajan
PURPOSE: To compare anterior cruciate ligament (ACL)-injured and ACL-intact patients as well as males and females in terms of tibial plateau slopes to determine their association with ACL injury. METHODS: Magnetic resonance images (MRI) of the knee of 310 male and 179 female skeletally mature Indian patients (mean age, 40 years) with (n=170+29) or without (n=140+150) ACL injury were reviewed. Their medial and lateral tibial plateau slopes (MTPS and LTPS), medial tibial plateau depth (MTPD), and lateral tibial plateau height (LTPH) were measured using MRI...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28027452/all-inside-all-epiphyseal-anterior-cruciate-ligament-reconstruction-in-skeletally-immature-athletes
#14
Frank A Cordasco, Stephanie Watson Mayer, Daniel W Green
BACKGROUND: Anterior cruciate ligament (ACL) injuries in skeletally immature athletes are increasing. PURPOSE: To evaluate the 2-year clinical outcomes of all-inside, all-epiphyseal ACL reconstruction in skeletally immature athletes with 3 to 6 years of remaining growth, with a focus on return to sport and the incidence of second surgery. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Twenty-three skeletally immature athletes were prospectively evaluated after all-epiphyseal ACL reconstruction utilizing a hamstring autograft...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28024306/a-canine-arthroscopic-anterior-cruciate-ligament-reconstruction-model-for-study-of-synthetic-augmentation-of-tendon-allografts
#15
James L Cook, Pat Smith, James P Stannard, Ferris Pfeiffer, Keiichi Kuroki, Chantelle C Bozynski, Cristi Cook
Novel graft types, fixation methods, and means for augmenting anterior cruciate ligament (ACL) reconstructions require preclinical validation prior to safe and effective clinical application. The objective of this study was to describe and validate a translational canine model for all-inside arthroscopic complete ACL reconstruction using a quadriceps tendon allograft with internal brace (QTIB). With institutional approval, adult research hounds underwent complete transection of the native ACL followed by all-inside ACL reconstruction using the novel QTIB construct with suspensory fixation (n = 10)...
December 26, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28005092/preservation-of-the-anterior-cruciate-ligament-a-treatment-algorithm-based-on-tear-location-and-tissue-quality
#16
Jelle P van der List, Gregory S DiFelice
The gold standard of anterior cruciate ligament (ACL) injuries is currently single-bundle autograft reconstruction. However, many disadvantages of reconstructive surgery exist, such as: anterior knee pain, muscle atrophy, and loss of range of motion. In addition, native kinematics are not restored, and osteoarthritis is not prevented. Finally, revision surgery, if necessary, can be problematic due to tunnel widening, tunnel malpositioning, and preexisting hardware. Ligament preservation includes preservation of native tissues in order to optimize the biologic aspects, while decreasing the invasive nature of reconstructive surgery...
November 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28003680/pseudoaneurysm-of-the-perforating-branch-of-the-deep-femoral-artery-following-anterior-cruciate-ligament-reconstruction
#17
Masataka Fujii, Takayuki Furumatsu, Yasutaka Kadota, Yoshinobu Shimamura, Shigeyuki Tsuchimochi, Toshifumi Ozaki
The present report describes the first known, case of a pseudoaneurysm of the perforating branch of the deep femoral artery following anterior cruciate ligament (ACL) reconstruction. A 19-year-old man underwent ACL reconstruction using the outside-in femoral tunnel-creation method. Seven days after the surgery, he complained of abnormal thigh pain and had swelling with local heat on the distal lateral thigh. Magnetic resonance imaging, computed tomography, and color Doppler ultrasonography showed the pseudoaneurysm in the thigh...
December 2016: Acta Medica Okayama
https://www.readbyqxmd.com/read/28003668/concurrent-lateral-meniscal-repair-with-anterior-cruciate-ligament-reconstruction-induces-the-extrusion-of-the-lateral-meniscus-assessments-of-magnetic-resonance-images
#18
Naoko Kashihara, Takayuki Furumatsu, Yuya Kodama, Takaaki Tanaka, Toshifumi Ozaki
Concurrent meniscal repair with anterior cruciate ligament (ACL) reconstruction has shown good clinical outcomes, but it has a considerable risk of progressing to post-traumatic osteoarthritis of the knee. Here we investigated postoperative changes in the position of the lateral meniscus (LM) and assessed the short-term clinical results after concurrent LM repair with ACL reconstruction. Twentyseven patients underwent LM repair of a peripheral longitudinal tear concomitant with ACL reconstruction. We evaluated the preoperative and postoperative values of the Lysholm score and anteroposterior instability...
December 2016: Acta Medica Okayama
https://www.readbyqxmd.com/read/27992239/differential-effects-of-two-rehabilitation-programs-following-anterior-cruciate-ligament-reconstruction
#19
Igor Setuain, Mikel Izquierdo, Fernando Idoate, Eder Bikandi, Esteban M Gorostiaga, Per Aagaard, Eduardo L Cadore, Jesús Alfaro-Adrián
Context- The muscular function restoration related to the type of physical rehabilitation followed after anterior cruciate ligament reconstruction (ACLR) using autologous hamstring tendon graft in terms of strength and cross sectional area (CSA) remain controversial. Objective- To analyze the CSA and force output of quadriceps and hamstring muscles in subjects following either an Objective Criteria-Based rehabilitation (OCBR) algorithm or the usual care (UCR) for ACL rehabilitation in Spain, before and one year after undergoing an ACLR...
December 19, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27940573/knee-osteoarthritis-is-associated-with-previous-meniscus-and-anterior-cruciate-ligament-surgery-among-elite-college-american-football-athletes
#20
Matthew V Smith, Jeffrey J Nepple, Rick W Wright, Matthew J Matava, Robert H Brophy
BACKGROUND: Football puts athletes at risk for knee injuries such meniscus and anterior cruciate ligament (ACL) tears, which are associated with the development of osteoarthritis (OA). Previous knee surgery, player position, and body mass index (BMI) may be associated with knee OA. HYPOTHESIS: In elite football players undergoing knee magnetic resonance imaging at the National Football League's Invitational Combine, the prevalence of knee OA is associated with previous knee surgery and BMI...
December 9, 2016: Sports Health
keyword
keyword
24017
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"