Read by QxMD icon Read

Acl And Knee

Heath P Melugin, Vishal S Desai, Christopher L Camp, Todd A Milbrandt, Diane L Dahm, Bruce A Levy, Michael J Stuart, Aaron J Krych
Background: Avulsion fractures involving the tibial eminence are considered equivalent in terms of the cause to anterior cruciate ligament (ACL) tears; however, there are limited data comparing the outcomes of adolescent patients undergoing surgical fixation of a tibial eminence fracture (TEF) with those undergoing ACL reconstruction. Purpose: To compare the clinical outcomes, subsequent ACL injury rates, and activity levels between adolescent patients who underwent TEF fixation with patients with midsubstance ACL tears who required acute reconstruction...
December 2018: Orthopaedic Journal of Sports Medicine
Tetsuro Masuda, Eiji Kondo, Jun Onodera, Nobuto Kitamura, Masayuki Inoue, Eiichi Nakamura, Tomonori Yagi, Norimasa Iwasaki, Kazunori Yasuda
Background: The effects of remnant tissue preservation on tunnel enlargement after anatomic double-bundle anterior cruciate ligament (ACL) reconstruction have not yet been established. Hypothesis: The preservation of ACL remnant tissue may significantly reduce the degree and incidence of tunnel enlargement after anatomic double-bundle ACL reconstruction, while the remnant-preserving procedure may not significantly increase the incidence of tunnel coalition after surgery...
December 2018: Orthopaedic Journal of Sports Medicine
Ryan Wood, Jacquelyn Marsh, Alan Getgood
Anterolateral rotational laxity of the knee is a persistent problem following anterior cruciate ligament reconstruction (ACLR) that can lead to increased rates of graft failure. Renewed interest in the anterolateral complex of the knee has led to a resurgence in the use of adjunctive techniques such as lateral extra-articular tenodesis and anterolateral ligament reconstruction. Use of these techniques can restore normal knee kinematics and potentially thereby reduce the rate of graft failure. Historically, experience with modified ACLR techniques such as the double-bundle ACLR have shown that improved biomechanics is not always reflected in clinical outcome trials...
December 2018: Techniques in Orthopaedics: TIO
Lachlan Batty, Timothy Lording
In the anterior cruciate ligament (ACL) deficient knee, excellent outcomes are achieved in many patients with an isolated, intra-articular ACL reconstruction. Some patients, however, have ongoing instability or suffer graft rupture. Failure after ACL reconstruction is multifactorial, but residual anterolateral rotatory laxity is 1 potential contributing factor. Lateral extra-articular procedures are a heterogenous group of operations that were initially described as isolated treatments for the ACL deficient knee, and subsequently used in combination with intra-articular reconstructions...
December 2018: Techniques in Orthopaedics: TIO
Jean-Romain Delaloye, Jozef Murar, Mauricio Gonzalez, Thiago Amaral, Vikram Kakatkar, Bertrand Sonnery-Cottet
Background: Graft rupture rate, return to sport and persistent rotational instability remain a concern postoperatively following anterior cruciate ligament (ACL) reconstruction. The anterolateral ligament (ALL) has recently been shown to act as a lateral knee stabilizer that helps improve rotational stability. To improve functional and clinical outcomes, a combined ACL reconstruction with an associated ALL reconstruction has been proposed. Purpose: The main purpose of this study was to evaluate the clinical outcomes of the combined ACL and ALL reconstruction...
December 2018: Techniques in Orthopaedics: TIO
Andrew J Sheean, Jason Shin, Neel K Patel, Jayson Lian, Daniel Guenther, Volker Musahl
The heterogeneity of available cadaveric, histologic, and radiographic results related to the anterolateral ligament (ALL) does not support its existence as a discrete anatomic structure. Moreover, focusing narrowly on the ALL in isolation, what has previously been referred to as "ALL myopia," obscures a thorough appreciation for the stability contributions of both capsular and extracapsular structures. We consider injury to the soft tissues of the anterolateral knee-the anterolateral complex-just one component of what is frequently found to be a spectrum of pathology observed in the rotationally unstable, anterior cruciate ligament (ACL)-deficient knee...
December 2018: Techniques in Orthopaedics: TIO
Mitchell I Kennedy, Christopher M LaPrade, Andrew G Geeslin, Robert F LaPrade
Residual anterolateral rotatory laxity following injury and reconstruction of the anterior cruciate ligament (ACL) has become a popular topic and has generated interest in characterizing the relative contribution from the anterolateral structures of the knee. Studies have reported on the anatomic and biomechanical features of the anterolateral ligament (ALL), revealing a role in restraining internal tibial rotation in both ACL-intact and ACL-deficient knees. The Kaplan fibers of the iliotibial band have also been reported to provide significant restraint to internal tibial rotation...
December 2018: Techniques in Orthopaedics: TIO
Lei Shen, Zhi-Gao Jin, Qi-Rong Dong, Liu-Bing Li
Background: Nowadays, the anterior cruciate ligament (ACL) injury has been one of the most common diseases of the knee joint. The relationships between the ACL injury and the anatomical structures are still controversial. This study aimed to identify the anatomical risk factors of ACL injury by magnetic resonance imaging (MRI) of the knee. Methods: This was a retrospective study of 125 patients undergoing primary ACL reconstruction between July 2013 and May 2017...
December 20, 2018: Chinese Medical Journal
Takanori Iriuchishima, Keinosuke Ryu, Freddie H Fu
PURPOSE: The purpose of this study was to reveal the relation between age and the morphological characteristics of the anterior cruciate ligament (ACL) using magnetic resonance imaging (MRI). METHODS: Thirty-seven young subjects who were diagnosed with a meniscus injury without ACL tear using MRI (15 male and 22 female, median age 26, range 15-49), and 33 elderly subjects for whom knee MRI was performed before uni-compartmental knee arthroplasty (11 male and 22 female, median age 77, range 60-83), were included in this study...
December 11, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Ana Paula Ramos Marinho, Guilherme S Nunes, Enaiane Menezes, Magnus Benetti, Marcos de Noronha
PURPOSE: To verify the quality of questionnaires/scales regarding knee instability caused by anterior cruciate ligament (ACL) insufficiency and their translated versions. MATERIALS AND METHODS: Searches were conducted on Web of Science, Pubmed, Medline, Cinahl, and SportDiscuss. The COnsensus-based Standards for the selection of Health Measurement INstruments (COSMIN) scale was used to assess the article's quality; and the measurement properties of each questionnaire/scale were also analysed...
December 11, 2018: Disability and Rehabilitation
Joseph S Tramer, Mohsin S Fidai, Omar Kadri, Toufic R Jildeh, Zamaan Hooda, Eric C Makhni, Terrence Lock
Background: A proposed mechanism for recurrent instability following anterior cruciate ligament (ACL) reconstruction is failure of the anterolateral ligament (ALL). Presently, there are a number of approaches to treating ALL pathology. Purpose: To determine practice patterns among orthopaedic surgeons regarding ALL during ACL reconstruction. Study Design: Cross-sectional study. Methods: An online 7-question survey was sent to all physicians registered with the American Orthopaedic Society for Sports Medicine between June and July 2017...
December 2018: Orthopaedic Journal of Sports Medicine
Scott E Landis, Russell T Baker, Jeffrey G Seegmiller
Background: Modifiable risk factors associated with non-contact anterior cruciate ligament (ACL) injuries are highly debated, yet the incidence rate of ACL injury continues to increase. Measures of movement quality may be an effective method for identifying individuals who are at a high risk of injury. Purpose: The purpose of this study was to investigate whether a movement screen and/or a drop-jump landing (DJL) task identifies female individuals at a higher risk for sustaining non-contact lower extremity (LE) injuries, particularly ACL injuries...
December 2018: International Journal of Sports Physical Therapy
Christian Baumgart, Wouter Welling, Matthias W Hoppe, Jürgen Freiwald, Alli Gokeler
Background: Strength deficits, muscle imbalances, and quadriceps inhibition are common after the surgical reconstruction of the anterior cruciate ligament (ACL), even after the patient's returned-to-sport. Typically, asymmetries between the operated and non-operated leg as well as the hamstring/quadriceps (HQ) ratio are calculated using maximum isokinetic torque values. Moreover, the knee flexion angles, which correspond to the measured torque values, were not considered. Therefore, the aim of the study was to evaluate the usage of an angle-specific approach for the analysis of isokinetic data in patients after an ACL-reconstruction...
2018: BMC Sports Science, Medicine and Rehabilitation
Jorge Chahla, Mark E Cinque, Bert R Mandelbaum
Anterior cruciate ligament (ACL) reconstruction is one of the most common procedures studied in the orthopaedic literature. In this regard, graft preparation is a key factor for successful outcomes. Although current methods to reconstruct the ACL are generally perceived to be successful, recent studies indicate that normal structure and function of the knee are fully restored in less than half of the patients. Therefore, biologically augmenting these scaffolds could provide a potential solution for improving healing times and biomechanical properties of the graft...
November 2018: Arthroscopy Techniques
Sudeep Kumar, Anup Kumar, Subhash Kumar, Prem Kumar
Background: Magnetic resonance imaging (MRI) has been gold standard investigation for diagnosing anterior cruciate ligament (ACL) tear. Availability and cost are two main factors limiting the universal use of MRI in all those patients in whom ligament injury is suspected. We compared the outcome of functional USG with gold standard MRI scan in this prospective study. Materials and Methods: In this study, we included the patients coming to orthopedics outpatient department with sign and symptoms of ACL injury...
November 2018: Indian Journal of Orthopaedics
Nathaniel A Bates, Maria C Mejia Jaramillo, Manuela Vargas, April L McPherson, Nathan D Schilaty, Christopher V Nagelli, Aaron J Krych, Timothy E Hewett
BACKGROUND: The aim of the present study was to evaluate the relationship between tibial slope angle and ligament strain during in vitro landing simulations that induce ACL failure through the application of variable external loading at the knee. The hypothesis tested was that steeper posterior tibial slope angle would be associated with higher ACL strain during a simulated landing task across all external loading conditions. METHODS: Kinetics previously derived from an in vivo cohort performing drop landings were reproduced on 45 cadaveric knees via the mechanical impact simulator...
November 24, 2018: Clinical Biomechanics
Lorena Suter, Adrian Roth, Michael Angst, Fabian von Knoch, Stefan Preiss, Renate List, Stephen Ferguson, Thomas Zumbrunn
BACKGROUND: Prevalence of knee osteoarthritis increases because life expectancy continues to rise with an active patient population. Hence, the concept of unicompartmental knee arthroplasty (UKA) has regained popularity as a treatment option for unicompartmental knee osteoarthritis. Anterior cruciate ligament (ACL) deficiency is widely considered as a contraindication for UKA, however, there are conflicting reports. If otherwise indicated, some surgeons consider UKA for ACL-deficient patients using a modified surgical technique, with a reduction of posterior tibial slope...
November 27, 2018: Gait & Posture
Ewelina Lulińska-Kuklik, Mary-Jessica Nancy Laguette, Waldemar Moska, Magdalena Weber-Rajek, Krzysztof Ficek, Ryszard Puchala, Paweł Cięszczyk, Marek Sawczuk, Alison Victoria September, Agnieszka Maciejewska-Skrendo
OBJECTIVES: To investigate the role of inter-individual variations in a particular glycoprotein, TNC, and its potential contribution to anterior cruciate ligament (ACL) injury susceptibility in Polish Caucasian participants. ACL rupture is one of the most prevalent and severe knee injury that predominantly occurs during sports participation, primarily via a non-contact mechanism. Several polymorphisms in genes encoding glycoproteins either independently or as allelic combinations, modulate the risk of musculoskeletal soft tissue injuries...
October 17, 2018: Journal of Science and Medicine in Sport
Takuma Hoshiba, Hiroki Nakata, Yasuaki Saho, Kazuyuki Kanosue, Toru Fukubayashi
CONTEXT: Deficits in knee position sense following reconstruction of the anterior cruciate ligament (ACL) can delay an athlete's return to sport participation and increase the risk of re-injury. Deficits in position sense post-reconstruction have been evaluated using either a position-reproducing or position-matching task. OBJECTIVE: The aim of our study was to combine both to determine which assessment would be more effective to identify deficits in knee position sense...
December 11, 2018: Journal of Sport Rehabilitation
Jayson Lian, João V Novaretti, Andrew J Sheean, Neel K Patel, Sean Whaley, Adam Popchak, Volker Musahl
BACKGROUND: In anterior cruciate ligament-deficient (ACL-D) knees, injury pattern and bony morphologic features have been shown to influence both static anterior tibial subluxation relative to the femur and dynamic rotatory knee laxity. Therefore, the relationship between static anterior tibial subluxation and dynamic rotatory knee laxity was investigated. PURPOSE: To determine whether static tibial subluxation as measured on magnetic resonance imaging (MRI) is associated with the grade of rotatory knee laxity in ACL-D knees...
December 7, 2018: American Journal of Sports Medicine
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"