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ACL tear

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https://www.readbyqxmd.com/read/29780838/association-of-compartmental-bone-bruise-distribution-with-concomitant-intra-articular-and-extra-articular-injuries-in-acute-anterior-cruciate-ligament-tears-after-noncontact-sports-trauma
#1
Palaniswamy Aravindh, Tianyi Wu, Chloe Xiaoyun Chan, Keng Lin Wong, Lingaraj Krishna
Background: Anterior cruciate ligament (ACL) injuries are frequently associated with bone bruises, and their presence may be associated with concomitant intra- and extra-articular injuries. Purpose: To investigate the prevalence and pattern of distribution of bone bruises in patients with acute ACL tears from noncontact sports trauma and their association with specific intra- and extra-articular injuries. Study Design: Cross-sectional study; Level of evidence, 3...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29772990/the-effects-of-meniscal-geometry-on-susceptibility-for-meniscal-and-acl-injury-in-non-arthritic-knees-a-retrospective-case-control-study
#2
Alexander Tejani, Qais Naziri, Preston W Grieco, Robert Pivec, Damon Greene, Bhaveen V Kapadia, Dipal Chatterjee, William P Urban
Prior studies have not found significant differences in meniscal parameters between patients with meniscal and ligamentous injury and those without. The purpose of this study was to determine whether such relationships exist. Clinical records and magnetic resonance images of three subject groups were reviewed. Group 1 solely had meniscal tears (medial/lateral), Group 2 had meniscal tears with concurrent ACL tears, and Group 3 had healthy knees. The mean age of subjects included was 35.9 years (range 8.2-72...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29770342/fibular-collateral-ligament-varus-stress-radiographic-analysis-using-3-different-clinical-techniques
#3
Patrick W Kane, Mark E Cinque, Gilbert Moatshe, Jorge Chahla, Nicholas N DePhillipo, Matthew T Provencher, Robert F LaPrade
Background: Fibular collateral ligament (FCL) tears are challenging to diagnose. Left untreated, FCL tears lead to residual ligament instability and increased joint loading on the medial compartment of the knee. Additionally, when a concomitant anterior cruciate ligament (ACL) reconstruction is performed, increased forces on reconstruction grafts occur, which may lead to premature graft failure. Stress radiographs constitute a reliable and validated technique for the objective assessment of a complete grade III FCL tear...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29761106/current-strategies-and-future-directions-to-optimize-acl-reconstruction-in-adolescent-patients
#4
Dustin Jon Richter, Roger Lyon, Scott Van Valin, Xue-Cheng Liu
The incidence of anterior cruciate ligament (ACL) injuries in the pediatric population has risen in recent years. These injuries have historically presented a management dilemma in skeletally immature patients with open physes and significant growth remaining at time of injury. While those nearing skeletal maturity may be treated with traditional, transphyseal adult techniques, these same procedures risk iatrogenic damage to the growth plates and resultant growth disturbances in younger patients with open physes...
2018: Frontiers in Surgery
https://www.readbyqxmd.com/read/29738676/anterior-cruciate-ligament-tibial-footprint-size-as-measured-on-magnetic-resonance-imaging-does-it-reliably-predict-actual-size
#5
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/29730210/evaluation-of-anterolateral-ligament-injuries-and-concomitant-lesions-on-magnetic-resonance-imaging-after-acute-anterior-cruciate-ligament-rupture
#6
Dhong Won Lee, Ji Hwan Lee, Ji Nam Kim, Sung Gyu Moon, Na Ra Kim, Du Han Kim, Jin Goo Kim
PURPOSE: To evaluate the prevalence and characteristics of anterolateral ligament (ALL) injuries with a ruptured acute anterior cruciate ligament (ACL) and to analyze the presence of concomitant bone contusions and meniscal lesions. METHODS: From March 2015 to March 2017, we retrospectively analyzed 378 patients who underwent primary ACL reconstructions. Using magnetic resonance imaging, we evaluated the presence of ALL injury and concomitant lesions within 3 weeks of the injury...
May 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29727309/differences-between-subtalar-instability-and-lateral-ankle-instability-focusing-on-subtalar-ligaments-based-on-three-dimensional-isotropic-magnetic-resonance-imaging
#7
Deuk Young Yoon, Sung Gyu Moon, Hong-Geun Jung, Na Ra Kim
OBJECTIVE: The purpose of this study was to assess the differences between subtalar instability (STI) and lateral ankle instability (LAI) focusing on subtalar ligaments using 3-dimensional (3D) isotropic magnetic resonance imaging (MRI). METHODS: Preoperative MRIs of 10 patients with STI who failed nonoperative treatment and consequently underwent arthroscopic subtalar reconstruction were compared with preoperative MRIs of 23 patients with LAI who underwent ligament repair or reconstruction...
April 28, 2018: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29704113/repair-of-the-lateral-posterior-meniscal-root-improves-stability-in-an-acl-deficient-knee
#8
Philipp Forkel, Constantin von Deimling, Lucca Lacheta, Florian B Imhoff, Peter Foehr, Lukas Willinger, Felix Dyrna, Wolf Petersen, Andreas B Imhoff, Rainer Burgkart
PURPOSE: To investigate the stabilizing effect of a lateral meniscus posterior root repair in an ACL and root deficient knee. METHODS: The hypothesis of the current study was that a sequential transection of the posterior root and the meniscofemoral ligaments in an ACL-deficient knee increases rotational instability, and conversely, a repair of the meniscus root reduces the internal tibial rotation. Therefore, eight human knee joints were tested in a robotic setup (5 N m internal torque, 50 N m anterior translation load)...
April 27, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29685835/incidence-of-anterolateral-ligament-tears-in-the-anterior-cruciate-ligament-deficient-knee-a-magnetic-resonance-imaging-analysis
#9
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/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/29668032/presence-of-meniscus-tear-alters-gene-expression-profile-of-anterior-cruciate-ligament-tears
#11
Robert H Brophy, Marcus A Rothermich, Eric D Tycksen, Lei Cai, Muhammad Farooq Rai
Anterior cruciate ligament (ACL) tears occur in isolation or in tandem with other intra-articular injuries such as meniscus tears. The impact of injury pattern on the molecular biology of the injured ACL is unknown. Here, we tested the hypothesis that the biological response of the ACL to injury varies based on the presence or absence of concomitant meniscus tear. We performed RNA-seq on 28 ACL tears remnants (12 isolated, 16 combined). In total, 16,654 transcripts were differentially-expressed between isolated and combined injury groups at false-discovery-rate of 0...
April 18, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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/29662910/outcomes-and-return-to-sport-after-revision-anterior-cruciate-ligament-reconstruction-in-adolescent-athletes
#13
Michael Saper, Stephanie Pearce, Joseph Shung, Robert Zondervan, Roger Ostrander, James R Andrews
Background: The number of adolescent anterior cruciate ligament (ACL) injuries is rising with increased participation in higher level athletics at earlier ages. With an increasing number of primary ACL reconstructions (ACLRs) comes a rise in the incidence of revision ACLRs. Purpose: To evaluate the clinical results of revision ACLR across a group of high-level adolescent athletes with at least 2-year follow-up. Study Design: Case series; Level of evidence, 4...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29656143/quantitative-imaging-of-bone-cartilage-interactions-in-acl-injured-patients-with-pet-mri
#14
F Kogan, A P Fan, U Monu, A Iagaru, B A Hargreaves, G E Gold
OBJECTIVE: To investigate changes in bone metabolism by positron emission tomography (PET), as well as spatial relationships between bone metabolism and magnetic resonance imaging (MRI) quantitative markers of early cartilage degradation, in anterior cruciate ligament (ACL)-reconstructed knees. DESIGN: Both knees of 15 participants with unilateral reconstructed ACL tears and unaffected contralateral knees were scanned using a simultaneous 3.0T PET-MRI system following injection of 18 F-sodium fluoride (18 F-NaF)...
April 12, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29620913/into-tunnel-repair-versus-onto-surface-repair-for-rotator-cuff-tears-in-a-rabbit-model
#15
Xiaoxi Li, Peng Shen, Wei Su, Song Zhao, Jinzhong Zhao
BACKGROUND: Clinically, onto-surface repair is commonly used for rotator cuff tears. The retear rate after rotator cuff repair (RCR) is relatively high, with failure occurring mostly at the tendon-bone connection site. For anterior cruciate ligament (ACL) reconstruction, into-tunnel reconstruction is commonly employed. The retear rate after ACL reconstruction is relatively low, with retears seldom occurring at the tendon-bone interface. No study on into-tunnel RCR has been conducted. HYPOTHESIS: Into-tunnel RCR could promote fibrocartilage regeneration at the tendon-bone interface and has biomechanical advantage over onto-surface repair in a rabbit rotator cuff tear model...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29596077/anterior-cruciate-ligament-injuries-in-the-national-hockey-league-epidemiology-and-performance-impact
#16
Robert Longstaffe, Jeff Leiter, Peter MacDonald
OBJECTIVE: To determine the incidence of anterior cruciate ligament (ACL) injuries in the National Hockey League (NHL) and to examine the effects of this injury on return-to-play status and performance. DESIGN: Case series; level of evidence, 4. METHODS: This was a 2-phase study. Phase I used the NHL electronic injury surveillance system and Athlete Health Management System to collect data on ACL injuries and man games lost over 10 seasons (2006/2007-2015/2016)...
March 27, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29588914/association-of-acl-laxity-tests-with-arthroscopic-findings-in-chronic-acl-and-pcl-deficient-knees
#17
S Sazali, A Rusdi, H T Siti
An anterior cruciate ligament (ACL) injury may be diagnosed by clinical examination and radiological investigation using magnetic resonance imaging or by arthroscopy. 1,2 Based on our experience, the ACL tear in concomitant chronic ACL and posterior cruciate ligament (PCL) deficient knees may produce knee laxity, which is more difficult to assess on clinical examination, which in turn may affect the management algorithm of the patient. Our hypothesis is that, in a concomitant chronic ACL and PCL injury, posterior capsular contracture and abnormal reattachment of torn ACL will result in less clinical and subjective laxity, preoperatively...
January 2018: Surgery Journal
https://www.readbyqxmd.com/read/29578751/in-vitro-and-in-vivo-performance-of-tissue-engineered-tendons-for-anterior-cruciate-ligament-reconstruction
#18
Kwang Il Lee, Jung Soo Lee, Kyoung Tak Kang, Young Bock Shim, Young Sik Kim, Ju Woong Jang, Seong Hwan Moon, Darryl D D'Lima
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction is the current standard of care for ACL tears. However, the results are not consistently successful; autografts or allografts have certain disadvantages; and synthetic grafts have had poor clinical results. PURPOSE: To determine if recellularization of decellularized tendons combined with mechanical stimulation in a bioreactor could replicate the mechanical properties of the native ACL and be successfully used for ACL reconstruction in vivo...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29576645/anterior-cruciate-ligament-reconstruction-with-tibial-attachment-preserving-hamstring-graft-without-implant-on-tibial-side
#19
Skand Sinha, Ananta Kumar Naik, Mridul Maheshwari, Sumedh Sandanshiv, Durgashankar Meena, Rajendra K Arya
Background: Tibial attachment preserving hamstring graft could prevent potential problems of free graft in anterior cruciate ligament (ACL) reconstruction such as pull out before graft-tunnel healing or rupture before ligamentization. Different implants have been reportedly used for tibial side fixation with this technique. We investigated short-term outcome of ACL reconstruction (ACLR) with tibial attachment sparing hamstring graft without implant on the tibial side by outside in technique...
March 2018: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/29565632/higher-gene-expression-of-healing-factors-in-anterior-cruciate-ligament-remnant-in-acute-anterior-cruciate-ligament-tear
#20
João Victor Novaretti, Diego Costa Astur, Davi Casadio, Alexandre Pedro Nicolini, Alberto de Castro Pochini, Carlos Vicente Andreoli, Benno Ejnisman, Moises Cohen
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction with remnant preservation has been described and related to potential advantages. Literature is lacking regarding gene expression of potential factors related to ligament healing in the ACL remnant and its relation to time from injury. HYPOTHESIS: The mRNA expression of ligament healing factors in the ACL remnant would be higher in acute tears (<3 months from injury) than in intermediate (3-12 months) and chronic (>12 months) injuries...
March 1, 2018: American Journal of Sports Medicine
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