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Anterolateral ligament

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https://www.readbyqxmd.com/read/27932332/the-anterolateral-capsule-of-the-knee-behaves-like-a-sheet-of-fibrous-tissue
#1
Daniel Guenther, Amir A Rahnemai-Azar, Kevin M Bell, Sebastián Irarrázaval, Freddie H Fu, Volker Musahl, Richard E Debski
BACKGROUND: The function of the anterolateral capsule of the knee has not been clearly defined. However, the contribution of this region of the capsule to knee stability in comparison with other anterolateral structures can be determined by the relative force that each structure carries during loading of the knee. PURPOSE/HYPOTHESIS: The purpose of this study was to determine the forces in the anterolateral structures of the intact and anterior cruciate ligament (ACL)-deficient knee in response to an anterior tibial load and internal tibial torque...
December 8, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27928215/anatomic-anterolateral-ligament-reconstruction-improves-postoperative-clinical-outcomes-combined-with-anatomic-anterior-cruciate-ligament-reconstruction
#2
Hua Zhang, Man Qiu, Aiguo Zhou, Jian Zhang, Dianming Jiang
A significant cohort of patients is plagued by postoperative rotational instability after the anatomic anterior cruciate ligament (ACL) reconstruction surgery. Anatomic anterolateral ligament (ALL) reconstruction was performed in this study with the aim to assess the clinical role of ALL in knee's stability and joint functions. Sixty patients were recruited and divided into three groups to perform the operations of anatomic single-bundle ACL reconstruction, anatomic double-bundle ACL reconstruction, and anatomic single-bundle ACL reconstruction + anterolateral ligament reconstruction, respectively...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27916189/editorial-commentary-lateral-extra-articular-reconstructions-with-anterior-cruciate-ligament-surgery-are-these-operative-procedures-supported-by-in%C3%A2-vitro-biomechanical-studies
#3
EDITORIAL
Frank R Noyes
There remains controversy on the role of a concurrent lateral extra-articular procedure with anterior cruciate ligament (ACL) reconstruction. Previous biomechanical studies often are historical and inconclusive. Studies show the anterolateral ligament and iliotibial band are secondary restraints and, when injured in conjunction with the ACL, produce gross (Grade 3) pivot-shift subluxations. Recent robotic studies show a well-placed bone-patellar tendon-bone reconstruction does restore time-zero kinematics with a negative pivot-shift...
December 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27880849/loading-patterns-of-the-posterior-cruciate-ligament-in-the-healthy-knee-a-systematic-review
#4
S H Hosseini Nasab, Renate List, Katja Oberhofer, Sandro F Fucentese, Jess G Snedeker, William R Taylor
BACKGROUND: The posterior cruciate ligament (PCL) is the strongest ligament of the knee, serving as one of the major passive stabilizers of the tibio-femoral joint. However, despite a number of experimental and modelling approaches to understand the kinematics and kinetics of the ligament, the normal loading conditions of the PCL and its functional bundles are still controversially discussed. OBJECTIVES: This study aimed to generate science-based evidence for understanding the functional loading of the PCL, including the anterolateral and posteromedial bundles, in the healthy knee joint through systematic review and statistical analysis of the literature...
2016: PloS One
https://www.readbyqxmd.com/read/27871655/surgical-indications-and-technique-for-anterior-cruciate-ligament-reconstruction-combined-with-lateral-extra-articular-tenodesis-or-anterolateral-ligament-reconstruction
#5
REVIEW
Bart Vundelinckx, Benjamin Herman, Alan Getgood, Robert Litchfield
After anterior cruciate ligament (ACL) rupture, anteroposterior and rotational laxity in the knee causes instability, functional symptoms, and damage to other intra-articular structures. Surgical reconstruction aims to restore the stability in the knee, and to improve function and ability to participate in sports. It also protects cartilage and menisci from secondary injuries. Because of persistent rotational instability after ACL reconstruction, combined intra-articular and extra-articular procedures are more commonly performed...
January 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27868005/the-anterolateral-ligament-a-closed-chapter
#6
COMMENT
Willem A Kernkamp, Guoan Li, Samuel K Van de Velde
No abstract text is available yet for this article.
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27863927/concomitant-injury-of-the-annular-ligament-in-fractures-of-the-coronoid-process-and-the-supinator-crest
#7
Tim Leschinger, Lars Peter Müller, Michael Hackl, Martin Scaal, Kay Schmidt-Horlohé, Kilian Wegmann
BACKGROUND: Fractures of the coronoid process or the supinator crest, as well as arthroscopic resection of osteophytes around the coronoid process, can endanger the attachment of the annular ligament (AL) to the proximal ulna. The purpose of this study was to investigate the corresponding insertional areas of the AL within this context. METHODS: In 30 embalmed human cadaveric elbow specimens, the insertional area of the AL at the anterior and posterior margin of the sigmoid notch was characterized...
November 15, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27859544/lateral-soft-tissue-structures-contribute-to-cruciate-retaining-total-knee-arthroplasty-stability
#8
Kiron K Athwal, Hadi El Daou, Breck Lord, Andrew J Davies, William Manning, Ferdinando Rodriguez Y Baena, David J Deehan, Andrew A Amis
Little information is available to surgeons regarding how the lateral structures prevent instability in the replaced knee. The aim of this study was to quantify the lateral soft-tissue contributions to stability following cruciate-retaining total knee arthroplasty (CR TKA). Nine cadaveric knees were tested in a robotic system at full extension, 30°, 60°, and 90° flexion angles. In both native and CR implanted states, ±90 N anterior-posterior force, ±8 Nm varus-valgus, and ±5 Nm internal-external torque were applied...
November 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27847860/morphology-of-anterolateral-ligament-of-the-knee-a-cadaveric-observation-with-clinical-insight
#9
Bhagath Kumar Potu, Abdel Halim Salem, Marwan F Abu-Hijleh
Background. The morphology and function of anterolateral ligament (ALL) of the knee are not clearly understood even today with all the sophisticated techniques available. There have been differing descriptions of the ALL of the knee in literature, and not all of them have been named or described clearly. Aim. The present study was undertaken to provide a clear structure/relationship description on ALL. Materials and Methods. We used 24 formalin-fixed cadaveric limbs. Knee regions of the all the limbs were neatly dissected and the ALL was exposed...
2016: Advances in Medicine
https://www.readbyqxmd.com/read/27843134/effect-of-posterior-cruciate-ligament-rupture-on-biomechanical-and-histological-features-of-lateral-femoral-condyle
#10
Zhenhan Deng, Yusheng Li, Hong Liu, Kanghua Li, Guanghua Lei, Bangbao Lu
BACKGROUND The aim of this study was to investigate bone mineral density (BMD) and the biomechanical and histological effects of posterior cruciate ligament (PCL) rupture on the lateral femoral condyle. MATERIAL AND METHODS Strain on different parts of the lateral femoral condyle from specimens of normal adult knee joints, including 12 intact PCLs, 6 ruptures of the anterolateral bundle, 6 ruptures of the postmedial bundle, and 12 complete ruptures, was tested when loaded with different loads on the knee at various flexion angles...
November 15, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27798791/anterolateral-ligament-of-the-knee-shows-variable-anatomy-in-pediatric-specimens
#11
Kevin G Shea, Matthew D Milewski, Peter C Cannamela, Theodore J Ganley, Peter D Fabricant, Elizabeth B Terhune, Alexandra C Styhl, Allen F Anderson, John D Polousky
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction failure rates are highest in youth athletes. The role of the anterolateral ligament in rotational knee stability is of increasing interest, and several centers are exploring combined ACL and anterolateral ligament reconstruction for these young patients. Literature on the anterolateral ligament of the knee is sparse in regard to the pediatric population. A single study on specimens younger than age 5 years demonstrated the presence of the anterolateral ligament in only one of eight specimens; therefore, much about the prevalence and anatomy of the anterolateral ligament in pediatric specimens remains unknown...
October 31, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27729320/overlap-between-anterior-cruciate-ligament-and-anterolateral-meniscal-root-insertions-a-scanning-electron-microscopy-study
#12
Brett D Steineman, Samuel G Moulton, Tammy L Haut Donahue, Cristián A Fontboté, Christopher M LaPrade, Tyler R Cram, Chase S Dean, Robert F LaPrade
BACKGROUND: The anterolateral meniscal root (ALMR) has been reported to intricately insert underneath the tibial insertion of the anterior cruciate ligament (ACL). Previous studies have begun to evaluate the relationship between the insertion areas and the risk of iatrogenic injuries; however, the overlap of the insertions has yet to be quantified in the sagittal and coronal planes. PURPOSE: To investigate the insertions of the human tibial ACL and ALMR using scanning electron microscopy (SEM) and to quantify the overlap of the ALMR insertion in the coronal and sagittal planes...
October 11, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27709038/bicruciate-knee-ligament-reconstruction-using-4-all-anterior-arthroscopic-portals
#13
Robert Petretta, Vipul Mandalia
The use of an accessory posteromedial portal for posterior cruciate ligament reconstruction in bicruciate knee ligament reconstruction has often been described. However, the use of a posteromedial portal can be time consuming and has some inherent risks including injury to the saphenous vein or nerve. We describe our bicruciate knee ligament reconstruction using 4 exclusively anterior portals including a high anteromedial, high anterolateral, low anteromedial, and low anterolateral portals. Arthroscopy is performed using a combination of 30° and 70° arthroscopes...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27709036/modified-arthroscopic-brostrom-procedure-with-bone-tunnels
#14
Tun Hing Lui
The open anatomic repair of the anterior talofibular and calcaneofibular ligaments (modified Brostrom procedure) is widely accepted as the standard surgical stabilization procedure for lateral ankle instability that does not respond to conservative measures. Arthroscopic Brostrom procedures with a suture anchor have been reported to achieve both anatomic repair of the lateral ankle ligaments and management of the associated intra-articular lesions. However, the complication rates are higher than open Brostom procedures...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27709034/posterior-horn-of-medial-meniscal-peripheral-capsular-lesion-the-arthroscopic-repair-technique-working-in-the-posterior-compartment
#15
Pinkawas Kongmalai, Bancha Chernchujit
A posterior horn of medial meniscal peripheral capsular is usually associated with the anterior cruciate ligament injury. The conventional repair technique with the camera in the anterolateral portal cannot precisely restore the slope capsular synovium to the original attachment point. We present the arthroscopic technique for improving the accuracy and quality of the repair by working in the posterior compartment. When the posterolateral portal is used as the viewing portal, the accuracy of repair is improved because we can assess the full extent of the lesion and lift the sagging peripheral tissue to the more central part...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27709023/percutaneous-reconstruction-of-the-anterolateral-ligament-of-the-knee-with-a-polyester-tape
#16
Ahmad M Wagih, Ahmed M F Elguindy
Recent advances in surgeons' understanding of the anatomic, biomechanical, and radiologic features of the anterolateral ligament (ALL) of the knee have led to an increased interest in reconstruction of this structure as part of the management of knee instability. Even without any technical flaws and proper positioning of the bone tunnels, there is a small subset of patients, approximately 7% of all patients, who experience some residual anterolateral rotational instability after anterior cruciate ligament reconstruction...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27707852/microstructural-and-mechanical-properties-of-the-posterior-cruciate-ligament-a-comparison-of-the-anterolateral-and-posteromedial-bundles
#17
Jon O Wright, Nathan W Skelley, Reid P Schur, Ryan M Castile, Spencer P Lake, Robert H Brophy
BACKGROUND: The microstructural organization (collagen fiber alignment) of the posterior cruciate ligament (PCL), which likely corresponds with its functional properties, has only been described qualitatively in the literature, to our knowledge. The goal of this study was to quantify the tensile mechanical and microstructural properties of the PCL and compare these qualities between the anterolateral and posteromedial bundles. METHODS: Twenty-two knee specimens from 13 donors (8 male and 5 female; mean age [and standard deviation] at the time of death, 43...
October 5, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27699439/historical-perspective-on-the-discovery-of-the-anterolateral-ligament-of-the-knee
#18
Etienne Cavaignac, David Ancelin, Philippe Chiron, Jean-Louis Tricoire, Karine Wytrykowski, Marie Faruch, Elodie Chantalat
: There is a lively debate about the existence, origins and discoverer of the anterolateral ligament of the knee. The complex anatomy of the lateral aspect of the knee has made it difficult to differentiate between various structures such as the iliotibial band, capsulo-osseous layer, Kaplan's fibres and the anterolateral capsule. The "discovery" of a new anterolateral structure in 2013 was the culmination of many historical studies. In 1879, Paul Ferdinand Segond described a tibial plateau fracture in which he noted a pearly band reinforcing the joint capsule...
October 3, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27697184/editorial-commentary-addressing-the-anterolateral-side-of-an-anterior-cruciate-ligament-deficient-knee-the-controversy-is-getting-even-more-interesting
#19
Michael J Rossi
Evidence is building to support consideration of anterolateral knee reconstruction in the anterior cruciate ligament-deficient knee with a high-grade pivot shift or participation in a high-risk sport. As the pendulum swings back to the future with the extra-articular augmentation, our anticipation should be tempered by cautious interpretation of the results as the controversy unfolds.
October 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27697182/editorial-commentary-selection-of-graft-attachment-site-in-anterolateral-ligament-reconstruction
#20
Shinichi Yoshiya
When considering the femoral attachment location for an anterolateral ligament reconstruction, the femoral attachment site should be positioned proximally and posteriorly to the lateral epicondyle to restore the physiologic length change of the native ligament. However, the clinical significance of the anterolateral ligament in patients having anterior cruciate ligament reconstructive surgery remains controversial.
October 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
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