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Anterior cruciate ligament reconstruction

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https://www.readbyqxmd.com/read/29147670/isokinetic-extension-strength-is-associated-with-single-leg-vertical-jump-height
#1
Felix Fischer, Cornelia Blank, Tobias Dünnwald, Peter Gföller, Elmar Herbst, Christian Hoser, Christian Fink
Background: Isokinetic strength testing is an important tool in the evaluation of the physical capacities of athletes as well as for decision making regarding return to sports after anterior cruciate ligament (ACL) reconstruction in both athletes and the lay population. However, isokinetic testing is time consuming and requires special testing equipment. Hypothesis: A single-jump test, regardless of leg dominance, may provide information regarding knee extension strength through the use of correlation analysis of jump height and peak torque of isokinetic muscle strength...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29146163/a-comparative-biomechanical-study-of-femoral-cortical-suspension-devices-for-soft-tissue-anterior-cruciate-ligament-reconstruction-adjustable-length-loop-versus-fixed-length-loop
#2
Moon Jong Chang, Tae Soo Bae, Young-Wan Moon, Jin Hwan Ahn, Joon Ho Wang
PURPOSE: To determine whether there are differences between adjustable-length loop and fixed-length loop devices in terms of the amount of displacement, temporal pattern of displacement, and ultimate failure load when tested using 4,500 cycles of sinusoidal loading with high loads (100-400 N). METHODS: Two cortical suspension devices with a fixed- or adjustable-length loop were tested. For our comparisons, a 20-mm fixed-length loop device and a fixed-length loop device with the same loop length were used...
November 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29146161/intraoperative-workflow-for-all-inside-anterior-cruciate-ligament-reconstruction-an-in%C3%A2-vitro-biomechanical-evaluation-of-preconditioning-and-knot-tying
#3
Edoardo Monaco, Samuel Bachmaier, Mattia Fabbri, Riccardo Maria Lanzetti, Coen A Wijdicks, Andrea Ferretti
PURPOSE: To evaluate and compare the effect of preconditioning according to intraoperative workflow on the elongation behavior of single-side and fully knotted all-inside anterior cruciate ligament (ACL) reconstruction configurations in a biomechanical in vitro study. METHODS: Four full construct all-inside ACL reconstruction groups (n = 8 per group) were tested using porcine tibias and bovine tendons. Groups included both an all-inside configuration with one- (group 1) and both-side knotted adjustable loop-length devices (group 2), without and with performing intraoperative preconditioning (group 1-intraoperative preconditioned [IPC], group 2-IPC)...
November 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29143858/correction-to-young-athletes-return-too-early-to-knee-strenuous-sport-without-acceptable-knee-function-after-anterior-cruciate-ligament-reconstruction
#4
Susanne Beischer, Eric Hamrin Senorski, Christoffer Thomeé, Kristian Samuelsson, Roland Thomeé
The author claims that his name is incorrectly listed on PubMed. The first name should be Eric and the last name should be Hamrin Senorski. On SpringerLink the name is listed correctly, but on PubMed he is listed as Senorski EH.
November 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29140580/enhanced-biological-fixation-of-ligaments-to-bone-tissues-utilizing-chitin-fabrics
#5
Hisaya Nomata, Michiko Nakaishi, Kazuo Takakuda
In ligament reconstruction involving anterior cruciate ligament surgery, biological fixation between the transferred ligament and bone tissue is critical for achieving successful outcomes. Here, we administered chitin fabrics into the bone tunnels and evaluated their efficacy in promoting biological fixation. An animal model on the rat's patellar ligament was employed. First, bone tunnels were created in the lateral condyle of the femur. The ligament was then separated from the tibial tuberosity, and half was inserted into the tunnel and fixed with the use of end button...
November 15, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29140170/clinical-diagnostic-tests-versus-mri-diagnosis-of-acl-tears
#6
Megan P Brady, Windee Weiss
CLINICAL SCENARIO: A common injury among elite, recreational, and youth athletes is the anterior cruciate ligament (ACL) tear.(1) Approximately 200,000 ACL injuries occur every year.(2) The gold standard in ACL injury evaluation is diagnostic arthroscopy,(3,4) however the diagnostic accuracy of clinical diagnostic tests and magnetic resonance imaging (MRI) is debatable.(1,3-6) Due to the frequency of knee injury,(3) MRI is a common diagnostic tool used for imaging and diagnosis(5). ACL tears are also diagnosed using clinical diagnostic tests...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29140169/relationship-between-physical-therapy-characteristics-surgical-procedure-and-clinical-outcomes-in-patients-after-acl-reconstruction
#7
Ian J Dempsey, Grant E Norte, Matthew Hall, John Goetschius, Lindsay V Slater, Jourdan M Cancienne, Brian C Werner, David R Diduch, Joseph M Hart
CONTEXT: Post-operative rehabilitation is critical to optimize outcomes after anterior cruciate ligament reconstruction (ACLR). However, the relationship between physical therapy (PT) and clinical outcomes is unclear. OBJECTIVE: To describe PT characteristics following ACLR, and assess the relationships between PT characteristics, surgical procedure, and clinical outcomes. DESIGN: Cross-sectional. SETTING: Laboratory...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29136255/loss-of-internal-tibial-rotation-after-anterior-cruciate-ligament-reconstruction
#8
Shawn R Brandenburg, Thomas M Matelic
The flexion angle of the knee and the position of the tibia need to be considered during tensioning of the anterior cruciate ligament (ACL) graft to avoid overconstraining the knee. The purpose of this report was to describe 2 cases of loss of tibial internal rotation after single-bundle anatomic ACL reconstruction with graft tensioning in flexion. Retrospective review of each patient's operative chart revealed that the graft was tensioned in flexion and placed in an anatomic position in the femoral tunnel at the time of the index operation...
November 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/29134251/meniscal-repair-results-in-inferior-short-term-outcomes-compared-with-meniscal-resection-a-cohort-study-of-6398-patients-with-primary-anterior-cruciate-ligament-reconstruction
#9
Eleonor Svantesson, Riccardo Cristiani, Eric Hamrin Senorski, Magnus Forssblad, Kristian Samuelsson, Anders Stålman
PURPOSE: To compare patient reported outcome measures (PROMs) during the first postoperative year between isolated anterior cruciate ligament (ACL) reconstruction and ACL reconstruction with concomitant meniscal intervention. METHODS: Patients who underwent primary ACL reconstruction at Capio Artro Clinic, Stockholm, Sweden, between 1st Jan 2001 and 31st Dec 2014 without concomitant injuries others than meniscal and/or cartilage lesions were included. Five groups of meniscal treatment simultaneously to ACL reconstruction were established; medial meniscal (MM) resection, MM repair, lateral meniscal (LM) resection, LM repair, and MM + LM resection...
November 13, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29125920/frontal-plane-knee-mechanics-and-early-cartilage-degeneration-in-people-with-anterior-cruciate-ligament-reconstruction-a-longitudinal-study
#10
Deepak Kumar, Favian Su, Daniel Wu, Valentina Pedoia, Lauren Heitkamp, C Benjamin Ma, Richard B Souza, Xiaojuan Li
BACKGROUND: Abnormal frontal plane gait mechanics are known risk factors for knee osteoarthritis, but their role in early cartilage degeneration after anterior cruciate ligament reconstruction (ACLR) is not well understood. Hypothesis/Purpose: The objective was to evaluate the association of frontal plane gait mechanics with medial knee cartilage magnetic resonance (MR) relaxation times over 1 year in patients with ACLR and controls. It was hypothesized that (1) there will be an increase in frontal plane medial knee loading and medial knee MR relaxation times over time in the patients with ACLR, and (2) increases in frontal plane medial knee loading will be associated with an increase in medial knee MR relaxation times...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29125817/do-peak-torque-angles-of-muscles-change-following-anterior-cruciate-ligament-reconstruction-using-hamstring-or-patellar-tendon-graft
#11
Hayri Baran Yosmaoğlu, Gül Baltacı, Emel Sönmezer, Hamza Özer, Deha Doğan
OBJECTIVES: This study aims to compare the effects of anterior cruciate ligament (ACL) reconstruction using autogenous hamstring or patellar tendon graft on the peak torque angle. PATIENTS AND METHODS: The study included 132 patients (103 males, 29 females; mean age 29±9 year) who were performed ACL reconstruction with autogenous hamstring or patellar tendon graft. The peak torque angles in the quadriceps and hamstring muscles were recorded using an isokinetic dynamometer...
December 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/29125074/-a-soccer-player-with-an-unstable-knee
#12
D Janssen, B Koc, E Jansen
A 19-year-old soccer player presented with instability of his left knee after a rotation trauma. Congenital absence of the anterior cruciate ligament was suspected because of leg length discrepancy and specific MRI findings. He regained stability after an anterior cruciate reconstruction.
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29124289/peak-stresses-shift-from-femoral-tunnel-aperture-to-tibial-tunnel-aperture-in-lateral-tibial-tunnel-acl-reconstructions-a-3d-graft-bending-angle-measurement-and-finite-element-analysis
#13
Hans Van Der Bracht, Thomas Tampere, Pieter Beekman, Alexander Schepens, Wouter Devriendt, Peter Verdonk, Jan Victor
PURPOSE: To investigate the effect of tibial tunnel orientation on graft-bending angle and stress distribution in the ACL graft. METHODS: Eight cadaveric knees were scanned in extension, 45°, 90°, and full flexion. 3D reconstructions with anatomically placed anterior cruciate ligament (ACL) grafts were constructed with Mimics 14.12(®). 3D graft-bending angles were measured for classic medial tibial tunnels (MTT) and lateral tibial tunnels (LTT) with different drill-guide angles (DGA) (45°, 55°, 65°, and 75°)...
November 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29124078/demineralized-bone-matrix-to-augment-tendon-bone-healing-a-systematic-review
#14
Adam T Hexter, Catherine Pendegrass, Fares Haddad, Gordon Blunn
Background: Following injury to the rotator cuff and anterior cruciate ligament, a direct enthesis is not regenerated, and healing occurs with biomechanically inferior fibrous tissue. Demineralized bone matrix (DBM) is a collagen scaffold that contains growth factors and is a promising biological material for tendon and ligament repair because it can regenerate a direct fibrocartilaginous insertion via endochondral ossification. Purpose: To provide a comprehensive review of the literature investigating the use of DBM to augment tendon-bone healing in tendon repair and anterior cruciate ligament reconstruction (ACLR)...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29124075/the-role-of-lateral-extra-articular-tenodesis-in-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review-with-meta-analysis-and-best-evidence-synthesis
#15
Brian M Devitt, Stuart W Bell, Clare L Ardern, Taylor Hartwig, Tabitha J Porter, Julian A Feller, Kate E Webster
Background: The role of lateral extra-articular tenodesis (LEAT) to augment primary anterior cruciate ligament reconstruction (ACLR) remains controversial. Purpose: To determine whether the addition of LEAT to primary ACLR provides greater control of rotational laxity and improves clinical outcomes compared with ACLR alone and to assess the impact of early versus delayed ACLR. Study Design: Systematic review; Level of evidence, 3. Methods: Two reviewers independently searched 7 databases for randomized and nonrandomized clinical studies comparing ACLR plus LEAT versus ACLR alone...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29122434/a-method-of-accurate-bone-tunnel-placement-for-anterior-cruciate-ligament-reconstruction-based-on-3-dimensional-printing-technology-a-cadaveric-study
#16
Jianlong Ni, Dichen Li, Mao Mao, Xiaoqian Dang, Kunzheng Wang, Jiankang He, Zhibin Shi
PURPOSE: To explore a method of bone tunnel placement for anterior cruciate ligament (ACL) reconstruction based on 3-dimensional (3D) printing technology and to assess its accuracy. METHODS: Twenty human cadaveric knees were scanned by thin-layer computed tomography (CT). To obtain data on bones used to establish a knee joint model by computer software, customized bone anchors were installed before CT. The reference point was determined at the femoral and tibial footprint areas of the ACL...
November 6, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29122433/anterior-cruciate-ligament-graft-removal-versus-retention-in-the-setting-of-septic-arthritis-after-reconstruction-a-systematic-review-and-expected-value-decision-analysis
#17
REVIEW
Nicholas Kusnezov, Emmanuel D Eisenstein, John C Dunn, Aaron J Wey, David R Peterson, Brian R Waterman
PURPOSE: To provide further guidance on the optimal decision between anterior cruciate ligament (ACL) graft removal versus retention in the setting of septic arthritis following reconstruction using an expected value decision analysis. METHODS: A systematic review and expected value decision analysis and sensitivity analyses were performed to quantify the clinical decision. A decision tree was created with 5 outcomes of interest: nonoperative complications, revision surgery, early reoperation, late reoperation, and "well...
November 6, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29118579/surface-modification-of-vascular-endothelial-growth-factor-loaded-silk-fibroin-to-improve-biological-performance-of-ultra-high-molecular-weight-polyethylene-via-promoting-angiogenesis
#18
Chengchong Ai, Dandan Sheng, Jun Chen, Jiangyu Cai, Siheng Wang, Jia Jiang, Shiyi Chen
Ultra-high-molecular-weight polyethylene (UHMWPE) has been applied in orthopedics, as the materials of joint prosthesis, artificial ligaments, and sutures due to its advantages such as high tensile strength, good wear resistance, and chemical stability. However, postoperative osteolysis induced by UHMWPE wear particles and poor bone-implant healing interface due to scarcity of osseointegration is a significant problem and should be solved imperatively. In order to enhance its affinity to bone tissue, vascular endothelial growth factor (VEGF) was loaded on the surface of materials, the loading was performed by silk fibroin (SF) coating to achieve a controlled-release delivery...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29117738/adding-high-frequency-transcutaneous-electrical-nerve-stimulation-to-the-first-phase-of-post-anterior-cruciate-ligament-reconstruction-rehabilitation-does-not-improve-pain-and-function-in-young-male-athletes-more-than-exercise-alone-a-randomized-single-blind
#19
Bijan Forogh, Hossein Aslanpour, Ehsan Fallah, Arash Babaei-Ghazani, Safoora Ebadi
PURPOSE: Knee ligamentous trauma and the following pain is one of the most prevalent athletic injuries. Transcutaneous electrical nerve stimulation is one of the conservative approaches in controlling pain which is low cost, noninvasive, and safe with low complications. Our purpose was to study whether transcutaneous electrical nerve stimulation (TENS) could help athletes perform better during the first phase of rehabilitation (0-4 weeks) after anterior cruciate ligament (ACL) reconstruction surgery and until the follow-up...
November 9, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29115973/anteromedial-versus-transtibial-technique-in-single-bundle-autologous-hamstring-acl-reconstruction-a-meta-analysis-of-prospective-randomized-controlled-trials
#20
REVIEW
Haitao Chen, Kai Tie, Yongjian Qi, Bin Li, Biao Chen, Liaobin Chen
BACKGROUND: The aim of this study was to compare the clinical outcome and postoperative complication between single-bundle anterior cruciate ligament (ACL) reconstruction with an anteromedial (AM) technique and a transtibial (TT) technique. METHODS: The study includes clinical randomized controlled trials comparing the clinical outcomes of ACL reconstruction using the autologous hamstring tendon with an AM method and a TT method published up to September 2017 were retrieved from PubMed, Cochrane Library, and Embase databases...
November 7, 2017: Journal of Orthopaedic Surgery and Research
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