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(Anterior cruciate ligament) AND Mri

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https://www.readbyqxmd.com/read/29327544/-clinical-outcome-of-arthroscopic-anterior-cruciate-ligament-remnant-preserving-reconstruction
#1
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/29312850/anterolateral-rotatory-instability-in-vivo-correlates-tunnel-position-after-anterior-cruciate-ligament-reconstruction-using-bone-patellar-tendon-bone-graft
#2
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/29285553/arthroscopic-primary-repair-of-the-anterior-cruciate-ligament-what-the-radiologist-needs-to-know
#3
REVIEW
Steven P Daniels, Jelle P van der List, J Jacob Kazam, Gregory S DiFelice
Recently, there has been a renewed interest in primary repair of proximal anterior cruciate ligament (ACL) tears. Magnetic resonance imaging (MRI) plays an important role in preoperative patient selection and in postoperative ligament assessment. Knowledge of the imaging factors that make patients candidates for primary ACL repair, namely proximal tear location and good tissue quality, can help radiologists provide information that is meaningful for surgical decision making. Furthermore, an understanding of the surgical techniques can prevent misinterpretation of the postoperative MRI...
December 28, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29280504/cartilage-quantitative-t2-relaxation-time-2-to-4-years-following-isolated-anterior-cruciate-ligament-reconstruction
#4
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: 1) compare cartilage T2 relaxation time (T2 values) in people with isolated ACLR at 2-3 years post-surgery (baseline) and matched healthy controls and; 2) evaluate the subsequent 2-year change in T2 values in people with ACLR. Twenty-eight participants with isolated ACLR and 9 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/29227373/incidence-of-meniscal-entrapment-and-associated-knee-injuries-in-tibial-spine-avulsions
#5
Jason T Rhodes, Peter C Cannamela, Aristides I Cruz, Meredith Mayo, Alexandra C Styhl, Connor G Richmond, Theodore J Ganley, Kevin G Shea
BACKGROUND: Tibial spine avulsions (TSA) have historically been treated as isolated injuries. Data on associated injuries are limited with existing literature reporting wide ranging incidences. The purpose of this multicenter study was to (1) describe the incidence of meniscal entrapment and associated knee injuries in TSA and to (2) compare surgical and magnetic resonance image (MRI) findings for these injuries. Our hypothesis is that tibial spine injuries are not usually isolated injuries, and other meniscal, ligament, and cartilage injuries may be present...
December 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29221902/a-comparison-of-patellofemoral-cartilage-morphology-and-deformation-in-anterior-cruciate-ligament-deficient-versus-uninjured-knees
#6
Kwadwo A Owusu-Akyaw, Lauren N Heckelman, Hattie C Cutcliffe, E Grant Sutter, Zoë A Englander, Charles E Spritzer, William E Garrett, Louis E DeFrate
Anterior cruciate ligament (ACL) deficient patients have an increased rate of patellofemoral joint (PFJ) osteoarthritis (OA) as compared to the general population. Although the cause of post-injury OA is multi-factorial, alterations in joint biomechanics may predispose patients to cartilage degeneration. This study aimed to compare in vivo PFJ morphology and mechanics between ACL deficient and intact knees in subjects with unilateral ACL ruptures. Eight male subjects underwent baseline MRI scans of both knees...
November 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29208323/evaluation-of-posterior-cruciate-ligament-and-intercondylar-notch-in-subjects-with-anterior-cruciate-ligament-tear-a-comparative-flexed-knee-3d-magnetic-resonance-imaging-study
#7
Atul K Taneja, Frederico C Miranda, Marco K Demange, Marcelo P Prado, Durval C B Santos, Laercio A Rosemberg, Ronaldo H Baroni
PURPOSE: To determine if posterior cruciate ligament (PCL) and intercondylar notch (IN) morphometries and volumetrics act as risk factors for anterior cruciate ligament (ACL) tears. METHODS: A prospective case-controlled magnetic resonance imaging (MRI) study was conducted with subjects presenting noncontact knee injuries. Exclusion criteria were previous surgery, PCL tear, osteoarthritis, tumors, or infectious and inflammatory conditions. All participants underwent a flexed-knee 3-dimensional (3D) magnetic resonance imaging (MRI) to uniformly straighten PCL...
December 2, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29201194/protective-effect-of-zoledronic-acid-on-articular-cartilage-and-subchondral-bone-of-rabbits-with-experimental-knee-osteoarthritis
#8
Guorong She, Ziqi Zhou, Zhengang Zha, Fei Wang, Xiaoting Pan
Subchondral bone reabsorption and remodeling are responsible for the initiation and progression of osteoarthritis (OA). Zoledronic acid (ZOL), a third-generation bisphosphonate (BIS), is an inhibitor of bone reabsorption. However, the intervention effect of ZOL on OA has not been fully characterized and remains to be directly demonstrated in animal experiments. The present study examined the microscopic and macroscopic changes in the anterior cruciate ligament transection (ACLT) model of OA in rabbits and evaluated the effects of ZOL on cartilage degeneration and subchondral bone loss...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29193888/associations-between-slower-walking-speed-and-t1%C3%AF-magnetic-resonance-imaging-of-femoral-cartilage-following-anterior-cruciate-ligament-reconstruction
#9
Steven Pfeiffer, Matthew S Harkey, Laura E Stanley, J Troy Blackburn, Darin A Padua, Jeffrey T Spang, Stephen W Marshall, Joanne M Jordan, Randy Schmitz, Daniel Nissman, Brian Pietrosimone
To determine if walking speed collected at 6 and 12 months following anterior cruciate ligament reconstruction (ACLR) associates with inter-limb differences in proteoglycan density, measured via T1ρ magnetic resonance imaging (MRI), in tibiofemoral articular cartilage 12 months following ACLR METHODS: Twenty-one individuals with a unilateral patellar-tendon autograft ACLR (10 females, 11 males, 23.9±2.7 years, 23.9±2.7 BMI) were recruited for participation in this study. Walking speed was collected using 3-dimensional motion capture at 6 and 12 months following ACLR...
November 28, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/29188678/posterolateral-bundle-reconstruction-of-the-anterior-cruciate-ligament-to-restore-rotational-stability-of-the-knee
#10
G Vadalà, S Petrillo, F Buschini, R Papalia, V Denaro
Only 5-10% of partial tears of the anterior cruciate ligament (ACL) are symptomatic, especially in high demand individuals or in patients practicing sports requiring rotational motions.. A certain preoperative diagnosis of this condition is challenging and often needs the combination of clinical examination, magnetic resonance imaging (MRI) and knee-laxity tool measurements. However, the arthroscopic examination of the torn ACL bundle is the most important factor in decision-making. Evidence in various studies have shown that the preservation of the ACL remnant and its surgical augmentation can bring important advantages in terms of vascularity and proprioception, resulting in better outcomes...
October 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29164266/nationwide-study-highlights-a-second-peak-in-acl-tears-for-women-in-their-early-forties
#11
Micah Nicholls, Thor Aspelund, Thorvaldur Ingvarsson, Kristin Briem
PURPOSE: Anterior cruciate ligament (ACL) rupture continues to be a focus of research on knee injuries. Despite this, data on the total number of ruptures on a national basis including both reconstructed (ACLR) and non-reconstructed injuries are limited. The purpose of this study was to describe the national incidence of MRI diagnosed ACL ruptures in Iceland and its subsequent rate of operation with regard to sex and age. METHODS: All MRI knee reports taken in Iceland between 2006 and 2011 were gathered to identify ACL ruptures...
November 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29162378/arthroscopic-medial-meniscal-repair-with-or-without-concurrent-anterior-cruciate-ligament-reconstruction-a-subgroup-analysis
#12
Erdal Uzun, Abdulhamit Misir, Turan Bilge Kizkapan, Mustafa Ozcamdalli, Soner Akkurt, Ahmet Guney
BACKGROUND: There are few large-scale, long-term studies comparing medial meniscal repairs with or without concurrent anterior cruciate ligament (ACL) reconstruction. METHODS: A total of 140 patients who underwent arthroscopic medial meniscal repair were divided into two groups: Group A, meniscus repair only and Group B, meniscus repair with concurrent ACL reconstruction. Clinical assessments in- cluded physical examination findings, Lysholm score, and the International Knee Documentation Committee (IKDC) form...
November 18, 2017: Knee
https://www.readbyqxmd.com/read/29158244/post-traumatic-knee-mri-findings-and-associations-with-patient-trauma-and-clinical-characteristics-a-subgroup-analysis-in-primary-care-in-the-netherlands
#13
Kim van Oudenaarde, Nynke M Swart, Johan L Bloem, Sita Ma Bierma-Zeinstra, Paul R Algra, Bart Koes, Jan Verhaar, Rob Ghh Nelissen, Patrick Je Bindels, Pim Aj Luijsterburg, Monique Reijnierse
BACKGROUND: The added value of magnetic resonance imaging (MRI) in primary care is still being debated. A high diagnostic yield can be expected in young and active patients with post-traumatic knee complaints. AIM: To determine the frequency of MRI abnormalities in young and active patients (aged 18-45 years) and the associations with patient, trauma, and clinical characteristics. DESIGN AND SETTING: A subgroup analysis of 174 patients, aged 18-45 years with knee trauma of <6 months, allocated to MRI in a randomised controlled trial on the yield of MRI in primary care...
November 20, 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/29145963/functional-results-and-isokinetic-muscle-strength-in-patients-with-fraser-type-i-floating-knee-treated-with-internal-fixation
#14
Fernando Brandao Andrade-Silva, Adriana Carvalho, Caio Mansano, Aline Giese, Marcos de Camargo Leonhardt, Dennis Barbosa, Kodi Edson Kojima, Jorge Santos Silva
INTRODUCTION: According to Fraser's description, ipsilateral femoral and tibial diaphyseal fractures are characterised as type I floating knee and have a better prognosis than fractures with joint involvement (type II). There are few reports of functional and muscle strength in these patients. The objective of this study was to evaluate the functional and isokinetic muscle strength of patients with type I floating knee undergoing femoral and tibial internal fixation. METHODS: Patients with type I floating knee undergoing concomitant femoral and tibial internal fixation were invited for clinical evaluation...
October 2017: Injury
https://www.readbyqxmd.com/read/29140170/clinical-diagnostic-tests-versus-mri-diagnosis-of-acl-tears
#15
Megan P Brady, Windee Weiss
CLINICAL SCENARIO: A common injury among elite, recreational, and youth athletes is the anterior cruciate ligament (ACL) tear.(1) Approximately 200,000 ACL injuries occur every year.(2) The gold standard in ACL injury evaluation is diagnostic arthroscopy,(3,4) however the diagnostic accuracy of clinical diagnostic tests and magnetic resonance imaging (MRI) is debatable.(1,3-6) Due to the frequency of knee injury,(3) MRI is a common diagnostic tool used for imaging and diagnosis(5). ACL tears are also diagnosed using clinical diagnostic tests...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29137565/mri-evaluation-of-the-acl-remnant-tissue-in-acl-deficient-knee
#16
Tsuneari Takahashi, Masashi Kimura, Katsushi Takeshita
PURPOSE: To clarify the relationship between anterior cruciate ligament (ACL) remnant tissue at the time of surgery and preoperative evaluation of ACL-injured knee. METHODS: A total of 123 patients were enrolled and classified into four groups based on the classification of ACL remnant tissue. To quantify the signal-noise quotient (SNQ), five regions of interest (ROIs), such as tibial, mid, femoral ACL remnant, tendon of quadriceps femoris to normalize the signal intensity of ACL remnant tissue, and background measurements, were measured...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29125920/frontal-plane-knee-mechanics-and-early-cartilage-degeneration-in-people-with-anterior-cruciate-ligament-reconstruction-a-longitudinal-study
#17
Deepak Kumar, Favian Su, Daniel Wu, Valentina Pedoia, Lauren Heitkamp, C Benjamin Ma, Richard B Souza, Xiaojuan Li
BACKGROUND: Abnormal frontal plane gait mechanics are known risk factors for knee osteoarthritis, but their role in early cartilage degeneration after anterior cruciate ligament reconstruction (ACLR) is not well understood. Hypothesis/Purpose: The objective was to evaluate the association of frontal plane gait mechanics with medial knee cartilage magnetic resonance (MR) relaxation times over 1 year in patients with ACLR and controls. It was hypothesized that (1) there will be an increase in frontal plane medial knee loading and medial knee MR relaxation times over time in the patients with ACLR, and (2) increases in frontal plane medial knee loading will be associated with an increase in medial knee MR relaxation times...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29125074/-a-soccer-player-with-an-unstable-knee
#18
D Janssen, B Koc, E Jansen
A 19-year-old soccer player presented with instability of his left knee after a rotation trauma. Congenital absence of the anterior cruciate ligament was suspected because of leg length discrepancy and specific MRI findings. He regained stability after an anterior cruciate reconstruction.
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29125013/diagnostic-value-of-combined-serum-marker-changes-and-quantitative-mri-evaluation-of-cartilage-volume-of-tibial-plateau-in-a-surgically-induced-osteoarthritis-dog-model
#19
Jiangdong Ren, Jinsai Ma, Xiaogang Zhang, Abdusami Aimaiti, Maimaitiming Saiyiti, Yuming Chen, Li Cao
Objective To evaluate the combined diagnostic value of two serum osteoarthritis (OA) markers and quantitative magnetic resonance imaging (MRI) evaluation of the cartilage volume of the tibial plateau in a canine model of experimental OA. Methods A total of 18 male Beagle dogs were used in this longitudinal study. OA was surgically induced via anterior cruciate ligament transection (ACLT) of the right knee in 10 dogs. The remaining eight dogs formed the sham operation control group and underwent the same procedure without ACLT...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29114629/knee-osteoarthritis-after-reconstruction-of-isolated-anterior-cruciate-ligament-injuries-a-systematic-literature-review
#20
REVIEW
Compagnoni Riccardo, Catani Fabio, Randelli Pietro
Purpose  The aim of this review was to analyze the current literature on osteoarthritic evolution of knees without any combined meniscal or ligament lesions undergoing anterior cruciate ligament (ACL) reconstruction. Methods  A PubMed/MEDLINE research was performed using the following keywords: "Anterior Cruciate Ligament Reconstruction" [Mesh] AND "Osteoarthritis, Knee" [Mesh]. Only English language literature and articles published after 2005 were included. Studies including concomitant meniscal tears, posterior cruciate or collateral ligament injuries, previous surgery in the affected knees, infections, osteochondral defects, loose bodies, synovial plica syndrome, and posteromedial or posterolateral corner injuries were not considered in this review...
March 2017: Joints
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