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Posterior ligament reconstruction

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https://www.readbyqxmd.com/read/28430526/the-bow-tie-shape-of-the-anterior-cruciate-ligament-as-visualized-by-high-resolution-magnetic-resonance-imaging
#1
Kang Min Sohn, Min Jin Lee, Helen Hong, Young Cheol Yoon, Chan Deok Park, Joon Ho Wang
BACKGROUND: Although numerous studies have examined the anatomic characteristics of the anterior cruciate ligament (ACL), its actual shape remains unclear. PURPOSE: To determine the average shape of the ACL by analyzing its cross section through the use of high-resolution magnetic resonance imaging (MRI) data. STUDY DESIGN: Descriptive laboratory study. METHODS: The study included 96 MRIs, conducted using a 3.0-T magnet, to analyze the shape of the ACL...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28409139/double-bundle-pcl-reconstruction-using-autologous-hamstring-tendons-outcome-with-a-minimum-2-year-follow-up
#2
Ricardo de Paula Leite Cury, Rômulo Neves Castro Filho, Daniel Akira Sadatsune, Davi Ribeiro do Prado, Ricardo José Peruzzo Gonçalves, Marcos Barbieri Mestriner
OBJECTIVE: To present the outcomes of posterior cruciate ligament (PCL) double-bundle reconstruction using autologous hamstring tendons, with a minimum follow-up of two years. METHODS: Evaluation of 16 cases of PCL injury that underwent double-bundle reconstruction with autogenous hamstring tendons, between 2011 and 2013. The final sample consisted of 16 patients, 15 men and one woman, with a mean age of 31 years (21-49). The predominant mechanism was motorcycle accident in half of the cases...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28409107/a-transosseous-bone-bridge-repair-for-posterior-horn-meniscal-root-tears-during-anterior-cruciate-ligament-reconstruction
#3
Jonathan M Frank, Daniel J Liechti, Jack Anavian, Thomas R Hackett
Meniscal root tears occur in isolation or concurrently with ligamentous knee injury and cause significantly altered knee mechanics with the loss of normal meniscus hoop stress. This loss of normal meniscus function can result in abnormal knee kinematics and, subsequently, more rapid degenerative changes of the knee articular surface. In the setting of anterior cruciate ligament tear, the posterolateral meniscus root is most commonly damaged. Several techniques exist for meniscus root repair; however, none have been shown to be clearly superior...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28409105/anatomic-single-bundle-anterior-cruciate-ligament-reconstruction-using-the-modified-transtibial-technique
#4
Dhong Won Lee, Jin Goo Kim
We present a technique for anterior cruciate ligament (ACL) reconstruction using hamstring tendon autograft with a modified transtibial technique. Our modified transtibial technique has the advantages of the conventional transtibial technique that is familiar to surgeons and that allows the press-fit fixing and enables us to make a relatively long femoral tunnel. To make the femoral tunnel at the anatomic position, the triangular, funnel-shaped bony trough was made to slip the eccentrically positioned guide pin into the anticipated anatomic center with a free-hand technique after marking the anatomic ACL footprint using a microfracture awl through the anteromedial portal...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28409103/posterior-cruciate-ligament-reconstruction-with-hamstring-tendons-using-a-suspensory-device-for-tibial-fixation-and-interference-screw-for-femoral-fixation
#5
Alejandro Espejo-Baena, Alejandro Espejo-Reina, María Josefa Espejo-Reina, Maximiano Lombardo-Torre
A technique for posterior cruciate ligament reconstruction is presented. Autologous hamstring tendons are selected as a graft. An interference screw is used for femoral fixation. A suspension device is used for tibial fixation to bring the fixation closer to the articular end of the tibial tunnel. Single diameter tunnels of the same diameter as the graft are created in an outside-in direction.
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28401277/stress-distribution-is-deviated-around-the-aperture-of-the-femoral-tunnel-in-the-anatomic-anterior-cruciate-ligament-reconstruction
#6
Yuichi Hoshino, Ryosuke Kuroda, Yuichiro Nishizawa, Naoki Nakano, Kanto Nagai, Daisuke Araki, Shinya Oka, Shogo Kawaguchi, Kouki Nagamune, Masahiro Kurosaka
PURPOSE: Final tunnel location in the anterior cruciate ligament (ACL) reconstruction is unpredictable due to tunnel widening and/or transposition. The mechanical stress around the tunnel aperture seems to be a major factor but is not fully investigated. The purpose of this study was to measure the stress from the ACL graft around the tunnel aperture when the ACL graft tension reaches its peak. METHODS: Six cadaveric knees were used. Single-bundle ACL reconstruction was performed using a hamstrings graft...
April 11, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28396049/acquired-femoral-flexion-deformity-due-to-physeal-injury-during-medial-patellofemoral-ligament-reconstruction
#7
Gerd Seitlinger, Philipp Moroder, Christian Fink, Guido Wierer
BACKGROUND: Reconstruction of the medial patellofemoral ligament (MPFL) is the most frequent surgical procedure performed in patients with patellar instability. Recently, concerns regarding physeal injury during femoral tunnel placement for anatomical MPFL reconstruction in children have been discussed. METHODS: This is the first case to report partial posterior physeal growth arrest and subsequent flexion deformity of the distal femur after MPFL reconstruction in a skeletally immature patient...
April 7, 2017: Knee
https://www.readbyqxmd.com/read/28392051/evaluating-the-femoral-side-critical-corner-in-posterior-cruciate-ligament-reconstruction-the-effect-of-outside-in-versus-inside-out-creation-of-femoral-tunnels-on-graft-contact-pressure-in-a-synthetic-knee-model
#8
Steven J Narvy, George F Hatch, Hansel E Ihn, Nathanael D Heckmann, Michelle H McGarry, James E Tibone, Thay Q Lee
PURPOSE: To characterize and compare the graft contact characteristics of outside-in (OI) and inside-out (IO) femoral tunnels during single-bundle reconstruction of the anterolateral bundle of the posterior cruciate ligament in a synthetic knee model. METHODS: Femoral tunnels were separately made in 16 synthetic femora (8 OI and 8 IO). Achilles tendon allografts were fixed using suspensory fixation with a pressure sensor between the allograft and femoral tunnel...
April 6, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28373948/arthroscopic-scapholunate-capsuloligamentous-repair-suture-with-dorsal-capsular-reinforcement-for-scapholunate-ligament-lesion
#9
Vicente Carratalá, Francisco J Lucas, Ignacio Miranda, Eduardo Sánchez Alepuz, Christian González Jofré
Scapholunate ligament (SLL) injury is the most frequent injury of the intrinsic carpal ligaments. The dorsal part of the SLL is the most important part for the stability of the scapholunate joint, and tears of this part and at least one of its secondary capsular attachments cause scapholunate dissociation. The arthroscopic technique most frequently used for acute injuries is reduction and fixation with Kirschner wires, and techniques that involve a primary repair of the injured ligament are performed by open surgery with efficient results...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28373934/remnant-preserving-posterior-cruciate-ligament-reconstruction-arthroscopic-transseptal-rod-and-pulley-technique
#10
Bancha Chernchujit, Supawat Samart, Pongtep Na Nakorn
The preservation of posterior cruciate ligament (PCL) remnant augmentation was recently proposed as a technique for PCL reconstruction. The technique achieved isometry and anatomic position of the PCL graft, but it was technically difficult. The present technique is a modified transseptal technique with visualization from both posteromedial and posterolateral portals. Moreover, this rod-pulley technique could prevent the killer turn effectively. The result was anatomic remnant augmented PCL graft.
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28373624/the-posterior-condylar-cartilage-affects-rotational-alignment-of-the-femoral-component-in-varus-knee-osteoarthritis
#11
Daisuke Hamada, Keizo Wada, Hiroshi Mikami, Shunichi Toki, Tomohiro Goto, Takahiko Tsutsui, Tomoya Takasago, Akihiro Nagamachi, Koichi Sairyo
Rotational alignment of the femoral component in total knee arthroplasty (TKA) is important for patellar tracking and ligament balance. Preoperative planning based on radiography might have a potential risk for over-rotation because these X-ray based measurements can not detect asymmetric cartilage wear on posterior condyle. The purpose of this study is to evaluate the effect of the posterior condylar cartilage of varus osteoarthritic knee on rotational alignment of the femoral component in TKA. We established two different condylar twist angles (CTA) from intraoperative multiplanar reconstruction (MPR) images and intraoperative information of navigation system...
2017: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/28370840/effect-of-femoral-tunnel-positions-on-graft-stress-in-outside-in-acl-reconstruction-surgery-during-continuous-knee-motion-a-simulation-study
#12
Kyungmin Kang, Tae Soo Bae
BACKGROUND: Previous studies regarding the optimal femoral tunnel location for an anterior cruciate ligament (ACL) reconstruction were based on static experiments at specific angles, and did not consider continuous motion of the knee. METHODS: Twenty-four surgical sites were set and continuous kinematic data, obtained from motion analysis, was used to describe knee movement. The bending angle and stress of the ACL graft as well as the length of the femoral tunnel was calculated through multi-flexible body dynamics analysis...
March 31, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28367691/reconstruction-of-the-spring-ligament-with-a-posterior-tibial-tendon-autograft-technique-tip
#13
Daniel B Ryssman, Clifford L Jeng
No abstract text is available yet for this article.
April 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28366539/influence-of-the-different-anteromedial-portal-on-femoral-tunnel-orientation-during-anatomic-acl-reconstruction
#14
Dong-Kyu Moon, Ho-Seung Jo, Dong-Yeong Lee, Dong-Geun Kang, June-Ho Byun, Sun-Chul Hwang
OBJECTIVE: The purpose of this study was to evaluate the effect of femoral tunnel orientation, drilled through the accessory anteromedial (AAM) portal or the high AM portal in anatomic anterior cruciate ligament (ACL) reconstruction. METHODS: In 16 cadaver knees, using o'clock method, centers of the ACL femoral footprint were drilled with an 8-mm reamer via an AAM portal (eight knees) or a high AM portal (eight knees). Computed tomography (CT) scans were taken of each knee...
March 30, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28355671/multiligamentous-injury-of-the-knee-mri-diagnosis-and-injury-patterns
#15
Barry Glenn Hansford, Corrie M Yablon
Anterior cruciate and posterior cruciate injuries rarely occur in isolation and are often associated with injuries to the secondary or supporting structures that provide stability against rotational forces. These structures include the posterolateral and posteromedial corner ligaments and tendons, as well as the anterolateral ligament. If injuries to these secondary structures are not appreciated at the time of cruciate ligament reconstruction, an isolated cruciate ligament reconstruction may be predisposed to early failure...
April 2017: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/28343325/mri-can-accurately-detect-meniscal-ramp-lesions-of-the-knee
#16
Justin W Arner, Elmar Herbst, Jeremy M Burnham, Ashish Soni, Jan-Hendrik Naendrup, Adam Popchak, Freddie H Fu, Volker Musahl
PURPOSE: Posterior horn meniscal tears are commonly found in conjunction with anterior cruciate ligament (ACL) injury. Some believe tears in the posterior meniscocapsular zone, coined ramp lesions, are important to knee stability. The purpose of this study was to determine whether pre-operative MRI evaluation was able to accurately and reproducibly identify ramp lesions. METHODS: Three blinded reviewers assessed MRIs twice for the presence of ramp lesions in patients undergoing ACL reconstruction...
March 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28339288/the-proximal-tibiofibular-joint-a-biomechanical-analysis-of-the-anterior-and-posterior-ligamentous-complexes
#17
Daniel Cole Marchetti, Gilbert Moatshe, Brian M Phelps, Kimi D Dahl, Marcio Balbinotti Ferrari, Jorge Chahla, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: Dislocation of the proximal tibiofibular joint is a complex injury that is often overlooked or misdiagnosed. Surgical management is recommended for severe acute or for chronic symptomatic instability of the proximal tibiofibular joint. Although the anterior ligamentous complex has been reported to be stronger than the posterior complex, biomechanical data are lacking. PURPOSE: To determine the ultimate load of the anterior and posterior ligamentous complexes of the proximal tibiofibular joint to determine optimal graft selection...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28326444/quantitative-radiographic-assessment-of-the-anatomic-attachment-sites-of-the-anterior-and-posterior-complexes-of-the-proximal-tibiofibular-joint
#18
Daniel Cole Marchetti, Jorge Chahla, Gilbert Moatshe, Erik L Slette, Robert F LaPrade
PURPOSE: Quantitative guidelines for radiographic identification of the anterior and posterior ligaments of the proximal tibiofibular joint have not been well defined. The purpose of this study was to provide reproducible, quantitative descriptions of radiographic landmarks identifying the anterior and posterior ligament complexes of the proximal tibiofibular joint. It was hypothesized that consistent quantitative data regarding the radiographic location of the anterior and posterior proximal tibiofibular joint ligament complexes could be identified...
March 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28321479/novel-anatomical-reconstruction-of-distal-tibiofibular-ligaments-restores-syndesmotic-biomechanics
#19
Jian Che, Chunbao Li, Zhipeng Gao, Wei Qi, Binping Ji, Yujie Liu, Ming Han Lincoln Liow
PURPOSE: To date, there is a paucity of literature on syndesmotic reconstruction techniques that restore both anatomic stability and physiologic syndesmotic biomechanics. In this cadaveric study, (1) a novel syndesmotic reconstruction surgical technique using autogenous peroneus brevis tendon was described and (2) the biomechanical properties of the reconstruction was investigated. METHODS: Ten fresh-frozen lower extremities were used in this study. Reconstruction of the anterior and posterior, as well as the interosseous tibiofibular ligaments was performed with a halved peroneus brevis tendon...
March 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28321475/the-forgotten-joint-quantifying-the-anatomy-of-the-proximal-tibiofibular-joint
#20
Jack Anavian, Daniel Cole Marchetti, Gilbert Moatshe, Erik L Slette, Jorge Chahla, Alex W Brady, David M Civitarese, Robert F LaPrade
PURPOSE: Limited objective data exist detailing the quantitative anatomy of the individual bundles of the proximal tibiofibular joint and their relation to surgically pertinent osseous landmarks. The purpose of this study was to qualitatively and quantitatively describe the ligamentous anatomy of the proximal tibiofibular joint and its relation to relevant bony landmarks. METHODS: Ten non-paired, fresh-frozen cadaveric knee specimens were dissected to identify the proximal tibiofibular joint ligament bundles...
March 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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