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(Anterior cruciate ligament) AND Mri

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https://www.readbyqxmd.com/read/29741923/effect-of-intraoperative-platelet-rich-plasma-treatment-on-postoperative-donor-site-knee-pain-in-patellar-tendon-autograft-anterior-cruciate-ligament-reconstruction-a-double-blind-randomized-controlled-trial
#1
Brian L Walters, David A Porter, Sarah J Hobart, Benjamin B Bedford, Daniel E Hogan, Malachy M McHugh, Devon A Klein, Kendall Harousseau, Stephen J Nicholas
BACKGROUND: Donor site morbidity in the form of anterior knee pain is a frequent complication after bone-patellar tendon-bone (BPTB) autograft anterior cruciate ligament (ACL) reconstruction. Hypothesis/Purpose: The purpose was to examine the effect of the intraoperative administration of platelet-rich plasma (PRP) on postoperative kneeling pain. It was hypothesized that PRP treatment would reduce knee pain. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29738676/anterior-cruciate-ligament-tibial-footprint-size-as-measured-on-magnetic-resonance-imaging-does-it-reliably-predict-actual-size
#2
Seong Hwan Kim, Han-Jun Lee, Yong-Beom Park, Han-Sol Jeong, Chul-Won Ha
BACKGROUND: Measuring the size of the anterior cruciate ligament (ACL) tibial footprint on magnetic resonance image (MRI) is common for preoperative planning of ACL reconstruction. However, the accuracy of such measurement has not been well documented. PURPOSE: To investigate whether the actual size of the ACL tibial footprint could be predicted by its measurement on MRI and to develop equations to improve the accuracy of predicting the actual size based on MRI measurement...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29730221/three-dimensional-magnetic-resonance-imaging-of-the-anterolateral-ligament-of-the-knee-an-evaluation-of-intact-and-anterior-cruciate-ligament-deficient-knees-from-the-scientific-anterior-cruciate-ligament-network-international-santi-study-group
#3
Koichi Muramatsu, Adnan Saithna, Hiroki Watanabe, Kana Sasaki, Kenta Yokosawa, Yudo Hachiya, Tatsuo Banno, Camilo Partezani Helito, Bertrand Sonnery-Cottet
PURPOSE: To determine the visualization rate of the anterolateral ligament (ALL) in uninjured and anterior cruciate ligament (ACL)-deficient knees using 3-dimensional (3D) magnetic resonance imaging (MRI) and to characterize the spectrum of ALL injury observed in ACL-deficient knees, as well as determine the interobserver and intraobserver reliability of a 3D MRI classification of ALL injury. METHODS: A total of 100 knees (60 ACL deficient and 40 uninjured) underwent 3D MRI...
May 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29730213/comparative-matched-pair-analysis-of-keyhole-bone-plug-technique-versus-arthroscopic-assisted-pullout-suture-technique-for-lateral-meniscal-allograft-transplantation
#4
Yong Gon Koh, Yong Sang Kim, Oh Ryong Kwon, Dong Beom Heo, Dae Hyun Tak
PURPOSE: To compare the clinical outcomes and meniscal extrusion measured by magnetic resonance imaging (MRI) between the keyhole bone-plug technique and arthroscopic-assisted pullout suture technique in lateral meniscal allograft transplantation (MAT). METHODS: Between October 2009 and February 2015, patients who underwent lateral MAT were retrospectively reviewed. The inclusion criteria were patients with symptomatic knees that had undergone total or subtotal meniscectomy who were treated with lateral MAT with a minimum follow-up period of 2 years...
May 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29725746/mri-analysis-of-peripheral-soft-tissue-composition-not-body-mass-index-correlates-with-outcomes-following-anterior-cruciate-ligament-reconstruction
#5
Michael T Milone, Kartik Shenoy, Hien Pham, Laith M Jazrawi, Eric J Strauss
PURPOSE: To utilize MRI to assess the relationship between BMI, peripheral soft tissue composition about the knee, and surgical outcomes in patients undergoing primary ACL reconstruction. It was hypothesized that a fatty periarticular soft tissue composition may be better than BMI at predicting poor outcomes after ACL reconstruction. METHODS: Fifty-eight patients who underwent primary acute ACL reconstruction were identified from the surgical database and their data were retrospectively reviewed...
May 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29705172/the-effect-of-arch-drop-on-tibial-rotation-and-tibiofemoral-contact-stress-in-postpartum-women
#6
Kaitlin Rabe, Neil A Segal, Saphia Waheed, Donald D Anderson
BACKGROUND: Women are at higher risk for knee osteoarthritis and numerous other lower limb musculoskeletal disorders. Arch drop during pregnancy and the resultant excessive pronation of the feet may alter loading patterns and contribute to the higher prevalence of knee osteoarthritis in women. OBJECTIVE: To determine the effect of arch drop on tibial rotation and tibiofemoral contact stress. DESIGN: Interventional study with internal control SETTING: Biomechanics laboratory PARTICIPANTS: Eleven postpartum women (age 33...
April 26, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29688959/arthroscopic-management-of-tibial-spine-avulsion-fractures-principles-and-techniques
#7
Eric J Strauss, Daniel James Kaplan, Maxwell E Weinberg, Jonathan Egol, Laith M Jazrawi
Tibial spine fractures are uncommon injuries affecting the insertion of the anterior cruciate ligament on the tibia. They typically occur in skeletally immature patients aged 8 to 14 years and result from hyperextension of the knee with a valgus or rotational force. Diagnosis is based on history, physical examination, and standard radiographs. The use of MRI can identify entrapped soft tissue that may prevent reduction. Open or arthroscopic repair is indicated in patients with partially displaced fractures (>5 mm) with one third to one half of the avulsed fragment elevated, in patients who have undergone unsuccessful nonsurgical reduction and long leg casting or bracing, and in patients with completely displaced fractures...
May 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29685835/incidence-of-anterolateral-ligament-tears-in-the-anterior-cruciate-ligament-deficient-knee-a-magnetic-resonance-imaging-analysis
#8
Christopher Gaunder, Scot Campbell, Michael Sciortino, Mark Slabaugh
PURPOSE: The purpose of this study is to determine the incidence of anterolateral ligament (ALL) tears on magnetic resonance imaging (MRI) in patients diagnosed with anterior cruciate ligament (ACL) tears. Furthermore, this study sought to determine the inter- and intraobserver reliability in diagnosing an ALL tear. METHODS: The MRI radiologic database at a community military hospital was queried for ACL tears over the period of January 2011 to April 2015. During this time, 181 MRIs were identified as having ACL tears...
April 20, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29679117/the-infrapatellar-fat-pad-is-a-dynamic-and-mobile-structure-which-deforms-during-knee-motion-and-has-proximal-extensions-which-wrap-around-the-patella
#9
Joanna M Stephen, Ran Sopher, Sebastian Tullie, Andrew A Amis, Simon Ball, Andy Williams
PURPOSE: The infrapatellar fat pad (IFP) is a common cause of knee pain and loss of knee flexion and extension. However, its anatomy and behavior are not consistently defined. METHODS: Thirty-six unpaired fresh frozen knees (median age 34 years, range 21-68) were dissected, and IFP attachments and volume measured. The rectus femoris was elevated, suprapatellar pouch opened and videos recorded looking inferiorly along the femoral shaft at the IFP as the knee was flexed...
April 20, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29678623/differences-in-subchondral-bone-plate-and-cartilage-thickness-between-women-with-anterior-cruciate-ligament-reconstructions-and-uninjured-controls
#10
Jennifer L Bhatla, Andres Kroker, Sarah L Manske, Carolyn A Emery, Steven K Boyd
OBJECTIVE: Anterior cruciate ligament (ACL) tears increase early onset osteoarthritis (OA) risk leading to cartilage and bone degradation. While the contribution of bone in OA development is unclear, evidence suggests that bone changes accompany cartilage degradation. This study aims to assess if regions with differences in subchondral bone plate thickness have differences in cartilage thickness when comparing ACL reconstructed (ACLR) knees of women ≥5 years post-injury to contralateral and controls with uninjured knees...
April 17, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29667852/determination-of-the-position-of-the-knee-at-the-time-of-an-anterior-cruciate-ligament-rupture-for-male-versus-female-patients-by-an-analysis-of-bone-bruises
#11
Kwadwo A Owusu-Akyaw, Sophia Y Kim, Charles E Spritzer, Amber T Collins, Zoë A Englander, Gangadhar M Utturkar, William E Garrett, Louis E DeFrate
BACKGROUND: The incidence of anterior cruciate ligament (ACL) ruptures is 2 to 4 times higher in female athletes as compared with their male counterparts. As a result, a number of recent studies have addressed the hypothesis that female and male patients sustain ACL injuries via different mechanisms. The efficacy of prevention programs may be improved by a better understanding of whether there are differences in the injury mechanism between sexes. Hypothesis/Purpose: To compare knee positions at the time of a noncontact ACL injury between sexes...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29662913/high-rate-of-missed-lateral-meniscus-posterior-root-tears-on-preoperative-magnetic-resonance-imaging
#12
Aaron J Krych, Isabella T Wu, Vishal S Desai, Naveen S Murthy, Mark S Collins, Daniel B F Saris, Bruce A Levy, Michael J Stuart
Background: Lateral meniscus posterior root tears (LMPRTs), if left untreated, can cause devastating effects to the knee, with rapid articular cartilage degeneration and loss of the meniscus as a secondary stabilizer. Detection and surgical repair of these defects have been linked to favorable outcomes, but preoperative identification of LMPRTs continues to be challenging. Purpose: To determine the rate of LMPRTs diagnosed preoperatively on magnetic resonance imaging (MRI) in a consecutive series of arthroscopically confirmed LMPRTs...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29614621/three-dimensional-finite-element-analysis-of-the-influence-of-posterior-tibial-slope-on-the-anterior-cruciate-ligament-and-knee-joint-forward-stability
#13
Yong Qi, Hongtao Sun, Yueguang Fan, Feimeng Li, Yunting Wang, Chana Ge
OBJECTIVE: To explore the biomechanical influence of posterior tibial angle on the anterior cruciate ligament and knee joint forward stability. METHODS: The left knee joint of a healthy volunteer was scanned by CT and MRI. The data were imported into Mimics software to obtain 3D models of bone, cartilage, meniscus and ligament structures, and then Geomagic software was used to modify of the image. The relative displacement between tibia and femur and the stress of ACL were recorded...
March 23, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29600679/-diagnostic-value-of-mri-for-posterior-root-tear-of-medial-and-lateral-meniscus
#14
Yue-Nan Qian, Fang Liu, Yi-Long Dong, Chun-Yuan Cai
OBJECTIVE: To explore diagnostic value of MRI on posterior root tear of medial and lateral meniscus. METHODS: From January 2012 to January 2016, clinical data of 43 patients with meniscal posterior root tear confirmed by arthroscopy were retrospective analyzed, including 25 males and 18 females, aged from 27 to 69 years old with an average age of(42.5±8.3)years old;27 cases on the right side and 16 cases on the left side. MRI examinations of 43 patients with tear of posterior meniscus root confirmed by knee arthroscopies were retrospectively reviewed...
March 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29589954/validation-of-an-mri-protocol-for-routine-quantitative-assessment-of-tunnel-position-in-anterior-cruciate-ligament-reconstruction
#15
Samuel Grasso, James Linklater, Qing Li, David A Parker
BACKGROUND: No standardized methodology and objective criteria currently exist to accurately and objectively assess tunnel placement and consequent graft orientation in anterior cruciate ligament (ACL) reconstruction (ACLR) through a single imaging modality. Advances in magnetic resonance imaging (MRI) technology have enabled the use of volumetric high spatial and contrast resolution proton density-weighted sequencing, which allows precise delineation of graft orientation, tunnel position, and quantitative assessment of tunnel position relationship to adjacent reproducible anatomic landmarks...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29574546/graft-bending-angle-affects-allograft-tendon-maturity-early-after-anterior-cruciate-ligament-reconstruction
#16
Linhai Chen, Yibing Wu, Guanghao Lin, Peng Wei, Zaohui Ye, Yangjian Wang, Tiantian Ren
PURPOSE: The aim of this study was to clarify the association of the anterior cruciate ligament (ACL) graft bending angle and graft maturity of autograft and allograft tendons using high-resolution MRI. METHODS: Patients with unilateral ACL reconstruction were invited to participate in this study, and they were examined using a 3.0-T MRI scan at 3, 6 and 12 months after the operation. Anatomic single-bundle ACL reconstruction was performed on 48 patients using the trans-portal technique, including 28 with autograft hamstring tendons and 20 with allograft tendons...
March 24, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29561460/spinal-dysraphism-and-dislocated-hip-beware-of-anomalous-sciatic-nerve-through-ilium-a-case-report
#17
Amanda T Whitaker, James Kasser, Young-Jo Kim
RATIONALE: The sciatic nerve runs a predictable course combining L4-S3 nerve roots through the true pelvis and under the greater sciatic notch. There are reports of bony protuberances from the sacrum and ilium in cases of spinal dysraphism; however advanced imaging, treatment, or outcomes are not described. There are no cases with associated fibular hemimelia in the current literature. PATIENT CONCERNS: This is a 4-year-old girl with tethered cord, acetabular dysplasia with hip subluxation, congenital short femur, anterior cruciate ligament (ACL) deficiency, and fibular hemimelia with her sciatic nerve coursing through the ilium...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29536687/-analysis-of-the-characteristics-and-clinical-diagnosis-and-treatment-of-avulsion-fracture-of-the-lateral-edge-of-tibial-plateau
#18
Jia-Ping Pan, Xu-Can Wang, Ming-Hong Huang
OBJECTIVE: To investigate the characteristics and clinical treatment of avulsion fracture of the lateral edge of tibial plateau(segond fracture) in knee joint injuries. METHODS: From January 2011 and December 2015, 29 patients with Segond fracture were treated with minimally invasive arthroscopy technology in intra-articular injuries combined with double anchor nail fixation in avulsion fracture of the lateral edge of tibial plateau, including 17 males and 12 females with an average age of 41 years old ranging from 27 to 62 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29534754/early-detection-of-osteoarthritis-in-rabbits-using-mri-with-a-double-contrast-agent
#19
Okihiro Onishi, Kazuya Ikoma, Masamitsu Kido, Yukichi Kabuto, Keiichiro Ueshima, Ken-Ichi Matsuda, Masaki Tanaka, Toshikazu Kubo
BACKGROUND: Articular cartilage degeneration has been evaluated by magnetic resonance imaging (MRI). However, this method has several problems, including its time-consuming nature and the requirement of a high magnetic field or specialized hardware. The purpose of this study was to sequentially assess early degenerative changes in rabbit knee articular cartilage using MRI with a new double-contrast agent. METHODS: We induced osteoarthritis (OA) in the right knee of rabbits by anterior cruciate ligament transection and partial medial meniscectomy...
March 13, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29517656/comparison-of-magnetic-resonance-imaging-for-patients-with-acute-and-chronic-anterior-cruciate-ligament-tears
#20
COMPARATIVE STUDY
Bin Xu, Hanyuan Zhang, Bo Li, Weichao Wang
To compare the direct and indirect signs on magnetic resonance imaging (MRI) for patients with acute and chronic anterior cruciate ligament (ACL) tears.Two independent reviewers retrospectively evaluated the MRI images of 377 patients with ACL tear confirmed by arthroscopy. There were 160 cases with acute ACL tear and 217 cases with chronic ACL tear. Direct signs in T1- and T2-wighted images and indirect signs including meniscus injury, the collateral ligament injury, cartilage damage or osteoarthritis, kissing contusion, Notch syndrome and abnormal posterior cruciate ligament (PCL) and other indirect signs were evaluated...
March 2018: Medicine (Baltimore)
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