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ACL reconstruction

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https://www.readbyqxmd.com/read/28646383/anterior-cruciate-ligament-graft-fixation-first-in-anterior-and-posterior-cruciate-ligament-reconstruction-best-restores-knee-kinematics
#1
Libin Zheng, Soheil Sabzevari, Brandon Marshall, Junjun Zhu, Monica A Linde, Patrick Smolinski, Freddie H Fu
PURPOSE: To evaluate the effect of different graft fixation sequences in one-stage anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) reconstruction on (1) knee biomechanics and (2) tibiofemoral alignment. METHODS: Twelve porcine knees were used in this study. Five fixation sequences were performed (angle indicating knee flexion): (a) PCL at 30° and ACL at 30°, (b) PCL at 90° and ACL at 30°, (c) ACL at 30° and PCL at 30°, (d) ACL at 30° and PCL at 90°, and (e) ACL and PCL simultaneous fixation at 30°...
June 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28643103/patient-age-as-a-preoperative-factor-associated-with-tunnel-enlargement-following-double-bundle-anterior-cruciate-ligament-reconstruction-using-hamstring-tendon-autografts
#2
Shinya Yanagisawa, Masashi Kimura, Keiichi Hagiwara, Atsuko Ogoshi, Tomoyuki Nakagawa, Hiroyuki Shiozawa, Takashi Ohsawa
PURPOSE: A few studies have detected associations of post-operative tunnel enlargement with sex, age, and the timing of anterior cruciate ligament reconstruction (ACLR). The aim of the present study was to investigate the correlation between post-operative tunnel enlargement following ACLR using hamstring tendon autografts and preoperative factors. The authors hypothesized that tunnel enlargement is associated with age in patients undergoing ACLR. METHODS: One hundred and six patients (male, n = 57; female, n = 49; mean age, 26...
June 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28642647/comparison-between-rendering-3d-ct-and-transparent-3d-ct-in-acl-tunnel-positioning
#3
Marcos Amstalden Barros, Tiago Lazzaretti Fernandes, Dimitris Dimitriou, André Pedrinelli, Arnaldo José Hernandez
OBJECTIVE: To compare the transparent 3D computed tomography (CT) image protocol against conventional 3D-CT image-rendering protocol to assess femoral tunnel position in anatomic anterior cruciate ligament (ACL) reconstructions . METHODS: Eight knee CT scans from cadavers were analyzed by image rendering 3D-CT protocol, using Rhinoceros((r)) software. The central point of the ACL tunnel was set using the sagittal plane. Same CT scans were analyzed using transparent 3D-CT measurement protocol with OsiriX((r)) software...
January 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28638970/ramp-lesions-associated-with-acl-injuries-are-more-likely-to-be-present-in-contact-injuries-and-complete-acl-tears
#4
Romain Seil, Caroline Mouton, Julien Coquay, Alexander Hoffmann, Christian Nührenbörger, Dietrich Pape, Daniel Theisen
PURPOSE: The purpose of this study was to analyse patient and injury characteristics as well as arthroscopic findings in a prospective cohort of ACL-injured patients with or without an associated ramp lesion. METHODS: Two hundred and twenty-four patients undergoing a primary (n = 196) or revision (n = 28) ACL reconstruction were included. The presence of a ramp lesion was determined by a systematic arthroscopic inspection of the posteromedial compartment. Chi-square tests were used to compare the population of ACL-injured patients with and without a ramp lesion regarding sex, age, body mass index, previous ACL injuries, sport before injury, and injury characteristics...
June 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28631143/post-operative-3d-ct-feedback-improves-accuracy-and-precision-in-the-learning-curve-of-anatomic-acl-femoral-tunnel-placement
#5
Luigi Sirleo, Massimo Innocenti, Matteo Innocenti, Roberto Civinini, Christian Carulli, Fabrizio Matassi
PURPOSE: To evaluate the feedback from post-operative three-dimensional computed tomography (3D-CT) on femoral tunnel placement in the learning process, to obtain an anatomic anterior cruciate ligament (ACL) reconstruction. METHODS: A series of 60 consecutive patients undergoing primary ACL reconstruction using autologous hamstrings single-bundle outside-in technique were prospectively included in the study. ACL reconstructions were performed by the same trainee-surgeon during his learning phase of anatomic ACL femoral tunnel placement...
June 19, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28631112/risk-of-revision-was-not-reduced-by-a-double-bundle-acl-reconstruction-technique-results-from-the-scandinavian-registers
#6
Cathrine Aga, Jüri-Tomas Kartus, Martin Lind, Stein Håkon Låstad Lygre, Lars-Petter Granan, Lars Engebretsen
BACKGROUND: Double-bundle anterior cruciate ligament (ACL) reconstruction has demonstrated improved biomechanical properties and moderately better objective outcomes compared with single-bundle reconstructions. This could make an impact on the rerupture rate and reduce the risk of revisions in patients undergoing double-bundle ACL reconstruction compared with patients reconstructed with a traditional single-bundle technique. The National Knee Ligament Registers in Scandinavia provide information that can be used to evaluate the revision outcome after ACL reconstructions...
June 19, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28621912/use-of-estradiol-promotes-graft-bone-healing-in-rabbit-model-of-anterior-cruciate-ligament-reconstruction-with-a-polyethylene-terephthalate-ligament
#7
Fang Chai, Fang Wan, Jia Jiang, Siheng Wang, Shiyi Chen
The purpose of this study was to investigate whether the local use of estradiol after anterior cruciate ligament (ACL) reconstruction with a polyethylene terephthalate (PET) artificial ligament graft could promote graft-bone healing. A total of 45 New Zealand white rabbits underwent ACL reconstruction with a PET ligament graft. The experimental groups were administered a local estradiol injection at either a low dose after surgery or a high dose after surgery, and the control group did not receive an injection...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28616652/effects-of-initial-graft-tension-on-femoral-tunnel-widening-after-anatomic-anterior-cruciate-ligament-reconstruction-using-a-bone-patellar-tendon-bone-graft
#8
Shuji Taketomi, Hiroshi Inui, Keitaro Tahara, Nobuyuki Shirakawa, Sakae Tanaka, Takumi Nakagawa
INTRODUCTION: The effects of initial graft tension upon tunnel widening (TW) following anatomic anterior cruciate ligament (ACL) reconstruction have not been elucidated. The purpose of this study was to retrospectively investigate the effect of two different graft-tensioning protocols upon femoral TW following anatomic ACL reconstruction using a bone-patellar tendon-bone (BPTB) graft and a three-dimensional (3D) computed tomography (CT) model. METHODS: Forty-three patients who underwent isolated ACL reconstruction using BPTB grafts were included in this study...
June 14, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28615040/immunohistochemical-and-immunocytochemical-study-of-mechanoreceptors-in-anterior-cruciate-ligament-reconstruction-with-the-remnant-preserving-technique-using-achilles-tendon-allografts
#9
Keun Churl Chun, Sung Hyun Lee, Jeong Woo Kim, Eun Jung Jin, Kwang Mee Kim, Churl Hong Chun
BACKGROUND: Attempts have been made to validate the significance of remnant preservation with anterior cruciate ligament (ACL) reconstruction using immunohistochemical and immunocytochemical techniques. The purpose of this study was to examine the expression of mechanoreceptors in the remnant tissue of ACL reconstruction performed with the remnant-preserving technique. METHODS: Tissue samples were obtained from 10 patients who underwent ACL reconstruction with the remnant-preserving technique...
June 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28612581/surgical-options-for-anterior-cruciate-ligament-reconstruction-in-the-young-child
#10
Meghan J Price, Lionel Lazaro, Frank A Cordasco, Daniel W Green
Injury to the anterior cruciate ligament (ACL) is becoming increasingly common in the skeletally immature population. Historically, there was a reluctance to operate on skeletally immature patients due to potential damage to the physis and subsequent growth disturbances; however, more recently, ACL reconstruction techniques specifically developed for this young population have shown good outcomes and low complication rates. In this article, we briefly discuss the modifiable and non-modifiable risk factors for ACL injury in children, options for conservative management for ACL rupture, and outcomes for delayed operative management...
August 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28610433/reoperation-rates-after-combined-anterior-cruciate-ligament-and-anterolateral-ligament-reconstruction-a-series-of-548-patients-from-the-santi-study-group-with-a-minimum-follow-up-of-2-years
#11
Mathieu Thaunat, Gilles Clowez, Adnan Saithna, Maxime Cavalier, Eric Choudja, Thais D Vieira, Jean-Marie Fayard, Bertrand Sonnery-Cottet
BACKGROUND: Early clinical results of anterolateral ligament (ALL) reconstruction are promising, but concerns exist due to high rates of complications after other types of lateral extra-articular tenodesis. The rate of surgery after combined anterior cruciate ligament (ACL) and ALL reconstruction is not known. PURPOSE: To determine the rate of reoperation after combined ACL and ALL reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28608618/bench-to-bedside-bridge-enhanced-anterior-cruciate-ligament-repair
#12
REVIEW
Gabriel S Perrone, Benedikt L Proffen, Ata M Kiapour, Jakob T Sieker, Braden C Fleming, Martha M Murray
Anterior cruciate ligament (ACL) injuries are one of the most well-known orthopaedic injuries and are treated with one of the most common orthopaedic procedures performed in the United States. This surgical procedure, ACL reconstruction, is successful at restoring the gross stability of the knee. However, the outcomes of ACL reconstruction can be limited by short and long term complications, including muscle weakness, graft rupture and premature osteoarthritis. Thus, new methods of treating this injury are being explored...
June 13, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28608009/clinical-outcomes-of-extra-articular-tenodesis-anterolateral-reconstruction-in-the-acl-injured-knee
#13
REVIEW
Bertrand Sonnery-Cottet, Nuno Camelo Barbosa, Thais Dutra Vieira, Adnan Saithna
PURPOSE: The role of concomitant extra-articular procedures in improving the outcome of ACL reconstruction has experienced a recent resurgence in interest. The aim of this article is to highlight the differences in philosophies and outcomes of historical lateral extra-articular tenodesis (LET) and contemporary, anterolateral reconstruction. METHODS: A narrative review was performed using PubMed/MEDLINE using the keywords "lateral extra-articular tenodesis" and "anterolateral ligament reconstruction"...
June 12, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28603610/does-additional-reconstruction-of-the-anterolateral-ligament-during-a-primary-anterior-cruciate-ligament-reconstruction-affect-tibial-rotational-laxity-a-case-series
#14
Rohi Shah, Runveer Singh, Clodagh Dugdale, Guido Geutjens
BACKGROUND: The current evidence suggests that rotational stability in not restored in patients with anterior cruciate ligament (ACL) ruptures, despite reconstructive surgery. The graded pivot-shift is a useful clinical test to delineate extent of ligamentous laxity within the knee. Given its lateralised position, we hypothesized that reconstruction of the anterolateral ligament (ALL) would provide restraint to excessive internal rotation, restoring rotational stability. METHODS: 10 patients with MRI confirmed diagnosis of an isolated ACL rupture were included...
July 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28602934/biomechanical-factors-associated-with-pain-and-symptoms-following-anterior-cruciate-ligament-injury-and-reconstruction
#15
Aisia Azus, Hsiang-Ling Teng, Lauren Tufts, Daniel Wu, C Benjamin Ma, Richard B Souza, Xiaojuan Li
BACKGROUND: Few studies have investigated the associations between patient-reported outcome and gait in patients with anterior cruciate ligament (ACL) injury and reconstruction over time. Because there is an association between ACL rupture and the presence of osteoarthritis later in life, a better understanding of these relationships will help to elucidate how patients' gait pattern may affect pain and symptoms, potentially leading to better treatment for or preventing the development of knee OA...
June 8, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28600607/-osteotomies-around-the-knee-for-ligament-insufficiency
#16
REVIEW
M J Feucht, T Tischer
BACKGROUND: The osseous geometry of the lower limb has a significant impact on knee instability after ligament injuries, and osseous malalignment has been shown to be a significant risk factor for the failure of ligament reconstruction procedures. Therefore, osteotomies around the knee have gained importance as a combined or isolated treatment option in the ligament deficient and malaligned knee. In addition to unloading of an arthritic knee compartment, osteotomies are also performed to protect a reconstructed ligament and to stabilize the joint without ligament surgery...
June 9, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28599980/generalized-hypermobility-knee-hyperextension-and-outcomes-after-anterior-cruciate-ligament-reconstruction-prospective-case-control-study-with-mean-6%C3%A2-years-follow-up
#17
Christopher M Larson, Asheesh Bedi, Mark E Dietrich, Jennifer C Swaringen, Corey A Wulf, David M Rowley, M Russell Giveans
PURPOSE: To determine whether generalized hypermobility and contralateral knee hyperextension affect failure rates and patient-related outcomes after anterior cruciate ligament reconstruction (ACLR). METHODS: A total of 226 consecutive patients presenting with acute ACL tears were prospectively evaluated for generalized hypermobility by a modified Beighton criteria. Minimum 2-year follow-up was achieved for 183 knees (81%). Patients underwent ACLR with either bone-patellar-tendon (BPTB) autograft (n = 46), quadrupled hamstring (HT) autograft (n = 85), or allograft tissue (n = 52)...
June 6, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28594528/international-perspective-on-revision-anterior-cruciate-ligament-reconstruction-what-have-we-been-missing
#18
Mohammad Humza Ansari, Steven Claes, Daniel C Wascher, Philippe Neyret, Michael J Stuart, Aaron J Krych
Primary anterior cruciate ligament (ACL) reconstruction is a common orthopaedic procedure. A graft failure rate of 5% to 10% after primary ACL reconstruction has resulted in an increased need for revision ACL reconstruction. ACL reconstruction failure etiologies include trauma, technical errors, and biologic factors. Based on the current literature, the outcomes of revision ACL reconstruction are clearly inferior compared with those of primary reconstruction. A thorough patient evaluation, including surgical history, a physical examination, and imaging studies, is crucial in the assessment of a failed ACL reconstruction...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28594522/skeletally-immature-anterior-cruciate-ligament-injuries-controversies-and-management
#19
Shital N Parikh, Bradley P Jaquith, Christopher M Brusalis, Lauren H Redler, Theodore J Ganley, Mininder S Kocher
At one time, anterior cruciate ligament (ACL) tears in skeletally immature patients were considered rare. The recommended treatment option for skeletally immature patients with ACL tears was to modify activities until skeletal maturity, at which point definitive ACL reconstruction could be safely performed. The management of ACL tears in skeletally immature patients has evolved as a result of the increased frequency of ACL tears in younger patients and an increased awareness for the potential development or worsening of meniscal tears, chondral lesions, and degenerative changes that occur with the "wait-and-fix-later" approach...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28593582/morphological-size-evaluation-of-the-mid-substance-insertion-areas-and-the-fan-like-extension-fibers-in-the-femoral-acl-footprint
#20
Makoto Suruga, Takashi Horaguchi, Takanori Iriuchishima, Yoshiyuki Yahagi, Genki Iwama, Yasuaki Tokuhashi, Shin Aizawa
PURPOSE: The purpose of this study was to evaluate the detailed anatomy of the femoral anterior cruciate ligament (ACL) insertion site, with special attention given to the morphology of the mid-substance insertion areas and the fan-like extension fibers. METHODS: Twenty-three non-paired human cadaver knees were used (7 Males, 16 Females, median age 83, range 69-96). All soft tissues around the knee were resected except the ligaments. The ACL was divided into antero-medial (AM) and postero-lateral (PL) bundles according to the difference in macroscopic tension patterns...
June 7, 2017: Archives of Orthopaedic and Trauma Surgery
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