keyword
MENU ▼
Read by QxMD icon Read
search

ACL reconstruction and biomechanics

keyword
https://www.readbyqxmd.com/read/27909676/anatomic-double-bundle-anterior-cruciate-ligament-reconstruction-with-a-free-quadriceps-tendon-autograft
#1
Sergiu Caterev, Dan Viorel Nistor, Adrian Todor
Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction aims to restore the 2 functional bundles of the ACL in an attempt to better reproduce the native biomechanics of the injured knee and promote long-term knee health. However, this concept is not fully accepted and is not performed on a standard basis. In addition, the superiority of this technique over the conventional single-bundle technique has been questioned, especially the long-term clinical results. One of the down sides of the double-bundle reconstruction is the complexity of the procedure, with increased risks, operative time, and costs compared with the single-bundle procedure...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27871660/management-of-the-anterior-cruciate-ligament-injured-knee-in-the-skeletally-immature-athlete
#2
REVIEW
Christian N Anderson, Allen F Anderson
Intrasubstance tears of the anterior cruciate ligament (ACL) are being diagnosed with increasing frequency in the skeletally immature. Management options include nonoperative/ early surgical, or delayed surgical reconstruction. Nonoperative/delayed reconstruction results in worse functional outcomes than early reconstruction. Physicians are faced with a treatment dilemma; clinical and basic science studies have demonstrated risk of limb-length discrepancy and angular deformity with ACL reconstruction. Vertical drill tunnels decrease physeal damage and minimize growth deformity; however, this technique results in nonanatomic ACL graft placement...
January 2017: Clinics in Sports Medicine
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
#3
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/27859527/gait-mechanics-and-second-acl-rupture-implications-for-delaying-return-to-sport
#4
Jacob J Capin, Ashutosh Khandha, Ryan Zarzycki, Kurt Manal, Thomas S Buchanan, Lynn Snyder-Mackler
Second anterior cruciate ligament rupture is a common and devastating injury among young women who return to sport after ACL reconstruction, but it is inadequately understood. The purpose of this study was to compare gait biomechanics and return-to-sport time frames in a matched cohort of young female athletes who, after primary ACLR, returned to sport without re-injury or sustained a second ACL injury. Approximately 6 months after primary reconstruction, 14 young women (age 16 ± 2 years) involved in jumping, cutting, and pivoting sports underwent motion analysis testing after physical therapy and impairment resolution...
November 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27858117/the-effect-of-anterior-cruciate-ligament-graft-rotation-on-knee-biomechanics
#5
Levent Surer, Konstantinos Michail, Murat Koken, Can Yapici, Junjun Zhu, Brandon D Marshall, Monica A Linde, Patrick Smolinski, Freddie H Fu
PURPOSE: The purpose of this study was to evaluate the effects on knee biomechanics of rotating the distal end of the bone-patellar tendon graft 90° in anatomic single-bundle (SB) anterior cruciate ligament (ACL) reconstruction with a porcine model. METHODS: Twenty (n = 20) porcine knees were evaluated using a robotic testing system. Two groups and three knee states were compared: (1) intact ACL, (2) deficient ACL and (3) anatomic SB ACL reconstruction with (a) non-rotated graft or (b) rotated graft (anatomic external fibre rotation)...
November 17, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27846352/-risk-factors-and-frequency-in-re-ruptures-of-the-anterior-cruciate-ligament-in-adults
#6
M L Velázquez-Rueda, J P Martínez-Ávila, A G Pérez-Serna, F Gómez-García
BACKGROUND: The anterior cruciate ligament (ACL) takes part in the knees articular cinematic regulation, which is why its rupture should be repaired as soon as possible. The surgical treatment is targeted to substitute the ruptured ACL with a graft that recreates the anatomical and biomechanical functions. Nevertheless, there are different factors that may produce a second rupture. OBJECTIVE: To determine the risk factors and frequency of failure in the ACL reconstruction...
March 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27843707/fresh-and-frozen-tissue-engineered-three-dimensional-bone-ligament-bone-constructs-for-sheep-anterior-cruciate-ligament-repair-following-a-2-year-implantation
#7
Vasudevan Mahalingam, Edward M Wojtys, Deneen M Wellik, Ellen M Arruda, Lisa M Larkin
Injuries to the anterior cruciate ligament (ACL) often require surgical reconstruction utilizing tendon grafts to restore knee function and stability. Some current graft options for ACL repair are associated with poor long-term outcomes. Our laboratory has fabricated tissue-engineered bone-ligament-bone (BLB) constructs that demonstrate native ligament regeneration and advancement toward native ACL mechanical properties in a sheep ACL reconstruction model. Prior work has shown that freezing BLBs as a method of preservation resulted in similar outcomes compared with fresh BLBs after 6-month implantation...
2016: BioResearch Open Access
https://www.readbyqxmd.com/read/27817976/return-to-sport-activity-after-anterior-cruciate-ligament-reconstruction-in-skeletally-immature-athletes-with-manual-drilling-original-all-inside-reconstruction-at-8-years-follow-up
#8
Giacomo Placella, Matteo Bartoli, Marco Peruzzi, Andrea Speziali, Valerio Pace, Giuliano Cerulli
OBJECTIVE: Anterior cruciate ligament (ACL) tears are common injuries in adolescent athletes, especially in those who bear high stress on their knees due to shearing forces. The goal of the surgical procedures in skeletally immature patients is to restore joint stability avoiding the adverse effects on the growth process. The aim of this study was to verify the return of the skeletally immature professional athletes to sports in the long-term, following ACL reconstruction with the original all-inside technique and with manual drilling...
November 3, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27746493/single-bundle-versus-double-bundle-anterior-cruciate-ligament-reconstruction-a-comparative-study-with-propensity-score-matching
#9
Jeong-Ku Ha, Dhong-Won Lee, Jin-Goo Kim
BACKGROUND: Numerous studies have elucidated the functional anatomy and biomechanics of the anterior cruciate ligament (ACL), as a result, double-bundle (DB) ACL reconstruction has received much attention and has become a popular choice because it gives better rotational stability. Many other studies, however, found no differences with respect to stability, and/or other clinical outcomes between the DB and single-bundle (SB) techniques. There is still not enough evidence as to whether the anatomical DB anterior cruciate ligament reconstruction (ACLR) is superior to anatomical SB reconstruction...
September 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27669454/a-comparative-animal-study-of-tendon-grafts-healing-after-remnant-preserving-versus-conventional-anterior-cruciate-ligament-reconstruction
#10
Lei Zhang, Kan Jiang, Hao Chai, Mei Zhou, Jingping Bai
BACKGROUND The aim of this study was to determine if anterior cruciate ligament (ACL) reconstruction by remnant preservation promotes cell proliferation, vascularization, proprioception recovery, and improved biomechanical properties of the tendon grafts. MATERIAL AND METHODS 75 New Zealand rabbits were randomly assigned into the control group (group A), conventional ACL reconstruction group (group B), ACL reconstruction using remnant preservation and graft through remnant sleeve technique group (group C), and ACL reconstruction using remnant preservation and remnant tensioning technique group (group D)...
September 26, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27648674/anterior-cruciate-ligament-reconstruction-does-the-surgeon-risk-worsening-of-the-clinical-outcome-during-the-learning-curve-if-he-switches-from-single-bundle-technique-to-double-bundle-technique
#11
A Ebert, K-H Frosch
Background: Anatomical reconstruction of the anterior cruciate ligament (ACL) using the double-bundle (DB) technique is becoming increasingly popular. Despite its proved biomechanical and anatomical superiority, clinical studies have found little advantage for the DB technique. The aim of this study was therefore to evaluate whether an experienced surgeon is able to obtain his usual good results with ACL reconstruction with the single-bundle (SB) technique directly after changing to the DB technique. Patients/Material and Methods: In a prospective, non-randomised and controlled interventional study, we compared the first 19 patients in our clinic who had an anterior cruciate ligament reconstruction using the DB technique with 31 patients who underwent a SB ACL reconstruction performed by the same surgeon during the same period of investigation...
October 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/27648454/femoral-aperture-fixation-improves-anterior-cruciate-ligament-graft-function-when-added-to-cortical-suspensory-fixation-an-in-vivo-computer-navigation-study
#12
Mark D Porter, Bruce Shadbolt
BACKGROUND: Recommendations for bone tunnel placement during anterior cruciate ligament (ACL) reconstruction have become more precise. However, these recommendations differ neither with the choice of graft nor with the method of fixation used. The influence of the method of femoral fixation used on the biomechanical function of a soft tissue ACL graft remains unknown. HYPOTHESIS: Our null hypothesis was that adding femoral aperture fixation to femoral cortical fixation, using the same bone tunnels, will not alter the control of anterior translation (AT) and internal rotation (IR) during ACL reconstruction using a hamstring graft...
September 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27637854/biomechanical-comparison-of-graft-structures-in-anterior-cruciate-ligament-reconstruction
#13
Breck R Lord, Hadi El-Daou, Bhushan M Sabnis, Chinmay M Gupte, Adrian M Wilson, Andrew A Amis
PURPOSE: Double-bundle (DB) anterior cruciate ligament (ACL) reconstruction may offer kinematic restoration superior to anatomic single bundle (SB), but it remains technically challenging. The femoral attachment site has the most effect on ACL graft isometry, so a simplified three-socket (3S) construct which still uses two sockets to cover the femoral ACL attachment is attractive. It was hypothesised that ACL reconstruction using three- and four-socket techniques would more closely restore native knee kinematics compared to anatomic two-socket (SB) surgery...
September 16, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27624178/high-load-preconditioning-of-human-soft-tissue-hamstring-grafts-an-in-vitro-biomechanical-analysis
#14
W Charles Lockwood, Daniel Cole Marchetti, Kimi D Dahl, Jacob D Mikula, Brady T Williams, Matthew M Kheir, Travis Lee Turnbull, Robert F LaPrade
PURPOSE: In order to minimize viscoelastic elongation of ACL reconstruction grafts, preconditioning protocols have been employed in clinical practice prior to final graft fixation. The purpose of this study was to evaluate two separate high-load static preconditioning protocols of double-looped semitendinosus-gracilis grafts and compare these results to both a current clinical protocol and a control group with no preconditioning protocol applied. It was hypothesized that a high-load, static preconditioning protocol would minimize graft elongation during a simulated progressive early rehabilitation compared to both the "89 N" clinical protocol and control groups...
September 13, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27623791/kinematic-outcomes-following-acl-reconstruction
#15
REVIEW
Jan-Hendrik Naendrup, Jason P Zlotnicki, Tom Chao, Kanto Nagai, Volker Musahl
Anterior cruciate ligament (ACL) reconstruction aims to restore the translational and rotational motion to the knee joint that is lost after injury. However, despite technical advancements, clinical outcomes are less than ideal, particularly in return to previous activity level. A major issue is the inability to standardize treatment protocols due to variations in materials and approaches used to accomplish ACL reconstruction. These include surgical techniques such as the transtibial and anteromedial portal methods that are currently under use and the wide availability of graft types that will be used to reconstruct the ACL...
December 2016: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/27517028/reconstruction-of-anterior-cruciate-ligament-and-anterolateral-ligament-using-interlinked-hamstrings-technical-note
#16
Marcio de Castro Ferreira, Flavio Ferreira Zidan, Francini Belluci Miduati, Caio Cesar Fortuna, Bruno Moreira Mizutani, Rene Jorge Abdalla
Recent anatomical and biomechanical studies on the anterolateral ligament (ALL) of the knee have shown that this structure has an important function in relation to joint stability, especially when associated with anterior cruciate ligament (ACL) injury. However, the criteria for its reconstruction have not yet been fully established and the surgical techniques that have been described present variations regarding anatomical points and fixation materials. This study presents a reproducible technique for ALL and ACL reconstruction using hamstring tendons, in which three interference screws are used for fixation...
July 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/27507845/effect-of-changing-the-joint-kinematics-of-knees-with-a-ruptured-anterior-cruciate-ligament-on-the-molecular-biological-responses-and-spontaneous-healing-in-a-rat-model
#17
Takanori Kokubun, Naohiko Kanemura, Kenji Murata, Hideki Moriyama, Sadao Morita, Tetsuya Jinno, Hidetoshi Ihara, Kiyomi Takayanagi
BACKGROUND: The poor healing capacity of a completely ruptured anterior cruciate ligament (ACL) has been attributed to an insufficient vascular supply, cellular metabolism, and deficient premature scaffold formation because of the unique intra-articular environment. However, previous studies have focused on intra-articular factors without considering extra-articular factors, including the biomechanical aspects of ACL-deficient knees. HYPOTHESIS: Changing the joint kinematics of an ACL-ruptured knee will improve cellular biological responses and lead to spontaneous healing through the mechanotransduction mechanism...
August 9, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27504467/meniscal-ramp-lesions-anatomy-incidence-diagnosis-and-treatment
#18
Jorge Chahla, Chase S Dean, Gilbert Moatshe, Justin J Mitchell, Tyler R Cram, Carlos Yacuzzi, Robert F LaPrade
Meniscal ramp lesions are more frequently associated with anterior cruciate ligament (ACL) injuries than previously recognized. Some authors suggest that this entity results from disruption of the meniscotibial ligaments of the posterior horn of the medial meniscus, whereas others support the idea that it is created by a tear of the peripheral attachment of the posterior horn of the medial meniscus. Magnetic resonance imaging (MRI) scans have been reported to have a low sensitivity, and consequently, ramp lesions often go undiagnosed...
July 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27465632/a-novel-mass-spring-damper-model-analysis-to-identify-landing-deficits-in-athletes-returning-to-sport-after-acl-reconstruction
#19
Daniel K Schneider, Alli Gokeler, Bert Otten, Kevin R Ford, Timothy E Hewett, Jon Divine, Angelo J Colosimo, Robert S Heidt, Gregory D Myer
A mass-spring-damper model may serve as an extension of biomechanical data from three-dimensional motion analysis and epidemiological data which help to delineate populations at-risk for anterior cruciate ligament (ACL) injuries. The purpose of this study was to evaluate such a model.\Thirty-six ACL reconstruction (ACLR) group subjects and 67 controls (CTRL) completed single-leg drop landing and single-leg broad jump tasks. Landing ground reaction force data were collected and analyzed with a mass-spring damper model...
July 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27438006/does-sterilization-with-fractionated-electron-beam-irradiation-prevent-acl-tendon-allograft-from-tissue-damage
#20
T Schmidt, D Grabau, J H Grotewohl, U Gohs, A Pruß, M Smith, S Scheffler, A Hoburg
PURPOSE: Allografts are frequently used for anterior cruciate ligament (ACL) reconstruction. However, due to the inherent risk of infection, a method that achieves complete sterilization of grafts is warranted without impairing their biomechanical properties. Fractionation of electron beam (FEbeam) irradiation has been shown to maintain similar biomechanical properties compared to fresh-frozen allografts (FFA) in vitro. Therefore, aim of this study was to evaluate the biomechanical properties and early remodelling of grafts that were sterilized with fractionated high-dose electron beam irradiation in an in vivo sheep model...
July 20, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
keyword
keyword
26730
1
2
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"