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Anterolateral ligament of the knee

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https://www.readbyqxmd.com/read/28321478/the-anterolateral-complex-in-anterior-cruciate-ligament-deficient-knees-demonstrate-sonographic-abnormalities-on-high-resolution-sonography
#1
Masahito Yoshida, Elmar Herbst, Macio Albers, Volker Musahl, Freddie H Fu, Kentaro Onishi
PURPOSE: The presence of anterolateral ligament of the knee is still controversial, and some physicians prefer to call this structure anterolateral complex (ALC) to infer plural nature of structures involved. The purpose of this study was to describe the scanning techniques and to classify various sonographic appearances of the tibial-side ALC of the knee in subjects with anterior cruciate ligament (ACL) injury. It was hypothesized that sonographic abnormity of the ALC would be associated with ACL injury history...
March 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28321423/the-anterolateral-ligament-an-anatomic-study-on-sex-based-differences
#2
Matt Daggett, Camilo Helito, Matthew Cullen, Andrew Ockuly, Kyle Busch, Joseph Granite, Barth Wright, Bertrand Sonnery-Cottet
BACKGROUND: The anterolateral ligament (ALL) has been shown to have an important role in rotatory stability of the knee. While there is abundant research on sex-based differences related to anterior cruciate ligament (ACL) rupture, there is a paucity of literature related to such differences in the ALL. PURPOSE: To define any sex-based differences in the ALL with regard to length, width, and thickness. STUDY DESIGN: Descriptive laboratory study...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28320209/anterolateral-ligament-of-the-knee-anatomy-function-imaging-and-treatment
#3
Ronak M Patel, Robert H Brophy
The anterolateral ligament (ALL) of the knee has gained attention recently for its potential role in rotational stability of the knee, especially in association with anterior cruciate ligament (ACL) injuries. Anatomic studies have characterized the ALL as it runs in an anteroinferior and oblique direction from the lateral distal femur to the anterolateral proximal tibia, although the prevalence and variance of this ligament are not well understood. Magnetic resonance imaging and ultrasound have identified the ligament and linked it with the classically described Segond fracture...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28314890/diagnostic-findings-caused-by-cutting-of-the-iliotibial-tract-and-anterolateral-ligament-in-an-acl-intact-knee-using-a-standardized-and-automated-clinical-knee-examination
#4
Timothy Lording, Shaun K Stinton, Philippe Neyret, Thomas P Branch
PURPOSE: The purpose of this study was to evaluate the separate contribution of the two definitions of the anterolateral ligament (ALL), the mid-third lateral capsular ligament (MTLCL) and deep capsule-osseous layer of the iliotibial tract (dcITT) in addition to the superficial iliotibial tract (sITT) to the control of tibial motion with respect to the femur during the application of force/torque seen during the three tests of the standard clinical knee examination (AP Lachman test, tibial axial rotation test and varus-valgus stress test)...
March 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28314889/reconstructing-the-anterolateral-ligament-does-not-decrease-rotational-knee-laxity-in-acl-reconstructed-knees
#5
Kasper Stentz-Olesen, Emil Toft Nielsen, Sepp de Raedt, Peter Bo Jørgensen, Ole Gade Sørensen, Bart Kaptein, Kjeld Søballe, Maiken Stilling
PURPOSE: Little is known about the anterolateral ligament's (ALL) influence on knee laxity. The purpose of this study was to investigate rotational knee laxity against a pure axial rotational stress using radiostereometric analysis (RSA) after cutting and reconstructing both the anterior cruciate ligament (ACL) and the ALL. METHODS: Eight human donor legs were positioned and stereoradiographically recorded at 0°, 30° and 60° of knee flexion using a motorised fixture, while an internally rotating force of 4 Nm was applied to the foot...
March 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28298053/passive-anterior-tibial-subluxation-in-the-setting-of-anterior-cruciate-ligament-injuries
#6
Lucas S McDonald, Jelle P van der List, Kristofer J Jones, Hendrik A Zuiderbaan, Joseph T Nguyen, Hollis G Potter, Andrew D Pearle
BACKGROUND: Static anterior tibial subluxation after an anterior cruciate ligament (ACL) injury highlights the abnormal relationship between the tibia and femur in patients with ACL insufficiency, although causal factors including injuries to secondary stabilizers or the time from injury to reconstruction have not been examined. PURPOSE: To determine static relationships between the tibia and femur in patients with various states of ACL deficiency and to identify factors associated with anterior tibial subluxation...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28293966/anatomic-reconstruction-of-the-anterior-cruciate-ligament-of-the-knee-with-or-without-reconstruction-of-the-anterolateral-ligament
#7
Samir Abdulrazik Ibrahim, Emad Mureed Shohdy, Yousef Marwan, Sami Abdulghaffar Ramadan, Abdulrahman Khalid Almisfer, Mohammad Wagdy Mohammad, Wael Shoabe Abdulsattar, Shiref Khirat
BACKGROUND: Rotational instability of the knee remains an issue after anterior cruciate ligament (ACL) reconstruction. Hypothesis/Purpose: The purpose was to evaluate the subjective and objective outcomes of combined reconstruction of the ACL and anterolateral ligament (ALL) of the knee. The hypothesis was that favorable outcomes can be achieved with this surgical procedure compared with isolated anatomic reconstruction of the ACL. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28293698/anterolateral-ligament-abnormalities-are-associated-with-peripheral-ligament-and-osseous-injuries-in-acute-ruptures-of-the-anterior-cruciate-ligament
#8
Camilo Partezani Helito, Paulo Victor Partezani Helito, Renata Vidal Leão, Marco Kawamura Demange, Marcelo Bordalo-Rodrigues
PURPOSE: Few studies have used MRI to identify the ALL. As it was shown that it is not possible to precisely characterize this ligament in all examination, it is important to identify concomitant lesions that can help in diagnosing ALL abnormalities. It is important to characterise this injury due to its association with anterolateral knee instability. Thus, the present study was performed to determine the frequency of ALL injuries in patients with acute ACL rupture and to analyse its associated knee lesions...
March 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28286916/contributions-of-the-anterolateral-complex-and-the-anterolateral-ligament-to-rotatory-knee-stability-in-the-setting-of-acl-injury-a-roundtable-discussion
#9
REVIEW
Volker Musahl, Alan Getgood, Philippe Neyret, Steven Claes, J M Burnham, Cecile Batailler, Bertrand Sonnery-Cottet, Andy Williams, Andrew Amis, Stefano Zaffagnini, Jón Karlsson
Persistent rotatory knee laxity is increasingly recognized as a common finding after anterior cruciate ligament (ACL) reconstruction. While the reasons behind rotator knee laxity are multifactorial, the impact of the anterolateral knee structures is significant. As such, substantial focus has been directed toward better understanding these structures, including their anatomy, biomechanics, in vivo function, injury patterns, and the ideal procedures with which to address any rotatory knee laxity that results from damage to these structures...
March 12, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28282213/anatomic-and-histological-investigation-of-the-anterolateral-capsular-complex-in-the-fetal-knee
#10
Soheil Sabzevari, Amir Ata Rahnemai-Azar, Marcio Albers, Monica Linde, Patrick Smolinski, Freddie H Fu
BACKGROUND: There is currently disagreement with regard to the presence of a distinct ligament in the anterolateral capsular complex of the knee and its role in the pivot-shift mechanism and rotatory laxity of the knee. PURPOSE: To investigate the anatomic and histological properties of the anterolateral capsular complex of the fetal knee to determine whether there exists a distinct ligamentous structure running from the lateral femoral epicondyle inserting into the anterolateral tibia...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28280906/kinematics-of-acl-and-anterolateral-ligament-part%C3%A2-ii-anterolateral-and-anterior-cruciate-ligament-reconstruction
#11
T Bonanzinga, Cecilia Signorelli, A Grassi, N Lopomo, M Jain, M Mosca, F Iacono, M Marcacci, F Zaffagnini
PURPOSE: To quantify the influence of Single-Bundle with Lateral Plasty and Double-Bundle reconstruction on static and dynamic laxity in combined ACL- and ALL-deficient knees. METHODS: The study included 10 fresh-frozen human knees. The joints were analyzed in the following conditions: ACL + ALL resection, Single-Bundle with Lateral Plasty (SBLP) reconstruction, Double-Bundle (DB) reconstruction. Testing parameters were: anterior displacement at 30° and 90° of flexion (AP30, AP90) applying a manual maximum load; internal rotation at 30° and 90° of flexion (INT30, INT90) applying a 5 Nm torque and acceleration and internal rotation Pivot-Shift (PS) test...
March 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28259348/editorial-commentary-studying-the-anterolateral-ligament-of-the-knee-have-we-lost-track-of-our-main-focus
#12
EDITORIAL
Bertrand Sonnery-Cottet
Considerable recent debate has led to a greater understanding of the potential role of the anterolateral structures of the knee in improving the outcomes of anterior cruciate ligament reconstruction. Although cadaveric studies have made a very important contribution to our understanding of anatomy, their weakness lies in a difficulty in knowing whether extrapolating biomechanical findings from a laboratory study to the clinical scenario can be valid.
March 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28258329/function-and-strain-of-the-anterolateral-ligament-part-i-biomechanical-analysis
#13
Björn Holger Drews, Oliver Kessler, Wolfgang Franz, Lutz Dürselen, Maren Freutel
PURPOSE: Because reconstruction of the anterior cruciate ligament (ACL) in a double-bundle technique did not solve the problem of persistent rotatory laxity after surgery, new potential answers to this issue are of great interest. One of these is an extraarticular stabilization based on the rediscovery of the anterolateral ligament (ALL). Knowledge about its biomechanical function and benchmark data for an optimal reconstruction remain lacking. Therefore, the purpose of this study was to assess the function of the ALL under passive motion, anterior tibial translation and tibial rotational moments...
March 3, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28251769/comparison-of-reaction-forces-on-the-anterior-cruciate-and-anterolateral-ligaments-during-internal-rotation-and-anterior-drawer-forces-at-different-flexion-angles-of-the-knee-joint
#14
Levent Uğur
BACKGROUND: Having a complicated anatomy, the knee joint has been further detailed and a new formation defined, the anterolateral ligament (ALL), in recent studies. While the importance of this ligament, which previously was associated with Segond fractures, was explained via clinical, radiologic and biomechanical studies, and basically, is thought to be a fixator structures for the tibia against internal rotation stress. Although in recent studies efficient surgical treatment was applied to patients who underwent anterior cruciate ligament (ACL) operation, some patients having a positive pivot test highlights the clinical importance of the ALL...
March 2, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28247330/corr-insights-%C3%A2-anterolateral-ligament-of-the-knee-shows-variable-anatomy-in-pediatric-specimens
#15
John P Albright
No abstract text is available yet for this article.
February 28, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28243704/patients-with-high-grade-pivot-shift-phenomenon-are-associated-with-higher-prevalence-of-anterolateral-ligament-injury-after-acute-anterior-cruciate-ligament-injuries
#16
Guan-Yang Song, Hui Zhang, Guan Wu, Jin Zhang, Xin Liu, Zhe Xue, Yi Qian, Hua Feng
PURPOSE: To compare the prevalence of concomitant anterolateral ligament (ALL) injury between patients with high-grade (grades II and III) pivot-shift and those with low-grade (grades 0 and I) pivot-shift phenomenon after acute anterior cruciate ligament (ACL) injuries. METHODS: Sixty-eight patients with an acute ACL injury who showed high-grade (grades II and III) pivot-shift phenomenon were enrolled as the study group. They were matched in a 1:1 fashion to another 68 ACL-injured control participants who showed low-grade (grades 0 and I) pivot-shift phenomenon during the same study period...
February 27, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28220268/anterolateral-ligament-expert-group-consensus-paper-on-the-management-of-internal-rotation-and-instability-of-the-anterior-cruciate-ligament-deficient-knee
#17
REVIEW
Bertrand Sonnery-Cottet, Matthew Daggett, Jean-Marie Fayard, Andrea Ferretti, Camilo Partezani Helito, Martin Lind, Edoardo Monaco, Vitor Barion Castro de Pádua, Mathieu Thaunat, Adrian Wilson, Stefano Zaffagnini, Jacco Zijl, Steven Claes
Purpose of this paper is to provide an overview of the latest research on the anterolateral ligament (ALL) and present the consensus of the ALL Expert Group on the anatomy, radiographic landmarks, biomechanics, clinical and radiographic diagnosis, lesion classification, surgical technique and clinical outcomes. A consensus on controversial subjects surrounding the ALL and anterolateral knee instability has been established based on the opinion of experts, the latest publications on the subject and an exchange of experiences during the ALL Experts Meeting (November 2015, Lyon, France)...
February 20, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28203587/why-do-authors-differ-with-regard-to-the-femoral-and-meniscal-anatomic-parameters-of-the-knee-anterolateral-ligament-dissection-by-layers-and-a-description-of-its-superficial-and-deep-layers
#18
Camilo Partezani Helito, Carlos do Amaral, Yuri da Cunha Nakamichi, Riccardo Gomes Gobbi, Marcelo Batista Bonadio, Renato José Mendonça Natalino, José Ricardo Pécora, Tulio Pereira Cardoso, Gilberto Luis Camanho, Marco Kawamura Demange
BACKGROUND: No consensus exists regarding the anatomic characteristics of the knee anterolateral ligament (ALL). A critical analysis of the dissections described in previous studies allows the division of the ALL into 2 groups with similar characteristics. The presence of considerable variability suggests that the authors may not be referring to the same structure. PURPOSE/HYPOTHESIS: To perform a lateral anatomic dissection, by layers, seeking to characterize the 2 variants described for the ALL on the same knee...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28196032/rotational-knee-instability-in-acl-deficient-knees-role-of-the-anterolateral-ligament-and-iliotibial-band-as-defined-by-tibiofemoral-compartment-translations-and-rotations
#19
Frank R Noyes, Lauren E Huser, Martin S Levy
BACKGROUND: The anterolateral ligament (ALL) has been proposed as a primary restraint for knee rotational stability. However, the data remain inconclusive. The purpose of this study was to determine the effect of the ALL and the iliotibial band (ITB) on knee rotational stability. METHODS: A 6-degrees-of-freedom robotic simulator was used to test 14 fresh-frozen cadaveric knee specimens. There were 4 testing conditions: intact, anterior cruciate ligament (ACL)-sectioned, ACL and ALL or ITB-sectioned (determined at random), and ACL and both ALL and ITB-sectioned...
February 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28151693/anterolateral-ligament-reconstruction-is-associated-with-significantly-reduced-acl-graft-rupture-rates-at-a-minimum-follow-up-of-2-years
#20
Bertrand Sonnery-Cottet, Adnan Saithna, Maxime Cavalier, Charles Kajetanek, Eduardo Frois Temponi, Matt Daggett, Camilo Partezani Helito, Mathieu Thaunat
BACKGROUND: Graft failure and low rates of return to sport are major concerns after anterior cruciate ligament (ACL) reconstruction, particularly in a population at risk. PURPOSE: To evaluate the association between reconstruction techniques and subsequent graft rupture and return-to-sport rates in patients aged 16 to 30 years participating in pivoting sports. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: A prospective study of patients undergoing primary ACL reconstruction with a bone-patellar tendon-bone (B-PT-B) graft, quadrupled hamstring tendon (4HT) graft, or hamstring tendon graft combined with anterolateral ligament reconstruction (HT+ALL) was conducted by the Scientific ACL NeTwork International (SANTI) Study Group...
February 1, 2017: American Journal of Sports Medicine
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