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https://www.readbyqxmd.com/read/28231648/evaluation-of-infection-after-anterior-cruciate-ligament-reconstruction-during-a-short-period
#1
Hee-June Kim, Hyun-Joo Lee, Jong-Chul Lee, Seung-Gi Min, Hee-Soo Kyung
Purpose: We encountered 7 cases (7.1%) of infection (5 deep and 2 superficial) in 98 cases of anterior cruciate ligament (ACL) reconstruction using hamstring autografts in a 17-month period. The aim of this study was to analyze the causes of infection and to introduce our treatment strategy. Materials and Methods: We investigated the shelf-life of the fixation implants, the order of surgery, previous knee surgery, infectious pathogen, treatment of infection, and results of treatment...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231647/outcome-of-acl-reconstruction-for-chronic-acl-injury-in-knees-without-the-posterior-horn-of-the-medial-meniscus-comparison-with-acl-reconstructed-knees-with-an-intact-medial-meniscus
#2
Kevin Syam, Devendra K Chouhan, Mandeep Singh Dhillon
Purpose: Cadaveric studies have shown that deficiency of the posterior horn of the medial meniscus (PHMM) increases strain on the anterior cruciate ligament (ACL) graft. However, its influence on the clinical and radiological outcome after ACL reconstruction is less discussed and hence evaluated in this study. Materials and Methods: This study included 77 cases of ACL reconstruction with a minimum 18-month follow-up. Of the 77 cases, 41 patients with intact menisci were compared clinically and radiologically with 36 patients with an injury to the PHMM that required various grades of meniscectomy...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231645/the-effect-of-different-sagittal-angles-of-the-tibial-guide-on-aperture-widening-of-the-tibial-tunnel-during-modified-transtibial-anterior-cruciate-ligament-reconstruction-a-randomized-in-vivo-study
#3
Young Chan Kim, Tulyapruek Tawonsawatruk, Hyeong Hwa Woon, Ji Woong Yum, Myung Jin Shin, Rodolfo S Bravo, Kyung Wook Nha
Purpose: The effect of sagittal plane angle of the tibial tunnel on the severity of tibial intra-articular aperture expansion caused by iatrogenic re-reaming in anterior cruciate ligament (ACL) reconstruction using a modified transtibial technique is unknown. The purpose of this study was to compare the severity of intra-articular aperture widening at different angles (40°, 45°, and 50°) of the tibial guide (TG). Materials and Methods: Ninety-seven patients who underwent modified transtibial ACL reconstruction were randomly allocated to TG 40°, 45°, and 50° groups...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231644/mid-term-outcomes-of-anterior-cruciate-ligament-reconstruction-with-far-anteromedial-portal-technique
#4
Yoon Sang Jeon, Sung Wook Choi, Ju Hyun Park, Jae Sik Yoon, Jung Sub Shin, Myung Ku Kim
Purpose: The purpose of this study was to evaluate the mid-term outcomes of anatomic anterior cruciate ligament (ACL) reconstruction using two anteromedial (AM) portals by comparing with short-term follow-up results. Materials and Methods: Fifty patients who were treated by ACL reconstruction using a two AM portal technique were evaluated retrospectively. The follow-up period was at least 5 years. The mean follow-up period was 68.5±13.9 months. The mid-term clinical outcomes were compared with short-term (≥12 months) results...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28229574/athlete-presentations-and-sports-injury-frequencies-by-sport-branches-at-a-university-sports-medicine-clinic
#5
Bernard Tahirbegolli, Şensu Dinçer, Ömer B Gözübüyük, Ufuk Değirmenci, Safinaz Yildiz, Suphi Vehid
BACKGROUND: We aimed to investigate the profile of athletes by determining the branch of sports, type, and area of sustained sports injury, and the frequencies through athletes' presentations to the largest university clinic in one of the most crowded and athletepopulated cities of Turkey, Istanbul. MATERIALS AND METHODS: THE study population comprised 1302 athletes who presented to the sports medicine clinic between the dates of July 1st, 2014, and June 30th, 2015...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28228894/osteolipoma-of-the-knee
#6
Tien-Phat V Huynh, Cara A Cipriano, Ian S Hagemann, Michael V Friedman
A case of a right knee intra-articular osteolipoma in a 64-year-old man is reported. The patient presented for evaluation of a 1-year history of nontraumatic, mechanically-exacerbated, medial-sided right knee pain. Radiographs demonstrated a partially calcified 3.0 cm mass anterior to the distal medial femur at the suprapatellar fossa. Magnetic resonance imaging examination confirmed a 4.0 × 3.6 cm well-circumscribed mass deep to the medial patellofemoral ligament, with predominantly fat characteristics on T1-weighted and T2-weighted sequences...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28228051/patellar-complications-in-single-versus-double-tunnel-medial-patellofemoral-ligament-reconstruction
#7
Riazuddin Mohammed, Neil Hunt, A J Gibbon
PURPOSE: Hamstring graft fixation on the patellar side during medial patellofemoral ligament (MPFL) reconstruction is usually with transosseous tunnels and can frequently lead to further problems. The aim of our study was to compare and analyse patellar complications in single patellar tunnel versus double tunnel hamstring graft fixation. METHODS: Twenty-nine knees with MPFL reconstructions (group S) in which the hamstring tendon graft was transfixed using a suspensory fixation method in a single tunnel drilled across the patella were analysed in comparison with 29 knees (group D) with interference fixation of the graft through two tunnels drilled up to a predetermined depth in the patella...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28228049/equation-based-precise-prediction-of-length-of-hamstring-tendons-and-quadrupled-graft-diameter-by-various-anthropometric-variables-for-knee-ligament-reconstruction-in-indian-population
#8
Ravi Gupta, Anubhav Malhotra, Gladson David Masih, Tanu Khanna
Preoperative prediction of hamstring tendon lengths and graft diameter for anterior cruciate ligament (ACL) reconstruction enables better preoperative planning. Presently, no study exists for Indian population where both derivation and verification of a mathematical equation for accurate prediction of hamstring graft dimensions have been done. This study was conducted in two phases: First phase ( derivation cohort): devoted to the study of correlation of length of hamstring tendons and graft diameter with various anthropometric measurements in 123 patients undergoing ACL reconstruction...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28227317/co-activation-periods-of-gastrocnemius-and-vastus-lateralis-during-walking-evaluated-by-surface-electromyography
#9
Alessandro Mengarelli, Annachiara Strazza, Agnese Sbrollini, Angela Agostinelli, Laura Burattini, Sandro Fioretti, Francesco Di Nardo, Alessandro Mengarelli, Annachiara Strazza, Agnese Sbrollini, Angela Agostinelli, Laura Burattini, Sandro Fioretti, Francesco Di Nardo, Alessandro Mengarelli, Sandro Fioretti, Agnese Sbrollini, Annachiara Strazza, Laura Burattini, Angela Agostinelli, Francesco Di Nardo
"In vivo" studies reported that the co-activation of gastrocnemius and quadriceps femoris (QF) muscles produces ACL strain values greater than those caused by an isolated activation of either muscle. Aim of this study was to assess the co-activation of gastrocnemius (lateral head, GL) and vastus lateralis (VL) in healthy and young adults during walking. To this purpose the Statistical Gait Analysis was performed, that allows a characterization of gait considering hundreds of strides belonging to the same walking trial...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224443/report-of-the-clinical-and-functional-primary-outcomes-in-men-of-the-acl-sports-trial-similar-outcomes-in-men-receiving-secondary-prevention-with-and-without-perturbation-training-1-and-2-years-after-acl-reconstruction
#10
Amelia J H Arundale, Kathleen Cummer, Jacob J Capin, Ryan Zarzycki, Lynn Snyder-Mackler
BACKGROUND: Athletes often are cleared to return to activities 6 months after anterior cruciate ligament (ACL) reconstruction; however, knee function measures continue to improve up to 2 years after surgery. Interventions beyond standard care may facilitate successful return to preinjury activities and improve functional outcomes. Perturbation training has been used in nonoperative ACL injury and preoperative ACL reconstruction rehabilitation, but has not been examined in postoperative ACL reconstruction rehabilitation, specifically return to sport rehabilitation...
February 21, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28224442/report-of-the-primary-outcomes-for-gait-mechanics-in-men-of-the-acl-sports-trial-secondary-prevention-with-and-without-perturbation-training-does-not-restore-gait-symmetry-in-men-1-or-2-years-after-acl-reconstruction
#11
Jacob John Capin, Ryan Zarzycki, Amelia Arundale, Kathleen Cummer, Lynn Snyder-Mackler
BACKGROUND: Movement asymmetries during walking are common after anterior cruciate ligament (ACL) injury and reconstruction and may influence the early development of posttraumatic osteoarthritis. Preoperative neuromuscular training (like perturbation training, which is neuromuscular training requiring selective muscle activation in response to surface perturbations) improves gait asymmetries and functional outcomes among people who are ACL-deficient, but the effect of postoperative perturbation training on gait mechanics after ACL reconstruction is unknown...
February 21, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28224374/mri-findings-of-knee-abnormalities-in-adolescent-and-adult-volleyball-players
#12
Heide Boeth, Aoife MacMahon, Felix Eckstein, Gerd Diederichs, Arne Schlausch, Wolfgang Wirth, Georg N Duda
BACKGROUND: To longitudinally and cross-sectionally evaluate knee abnormalities by sex and age in adolescent and adult volleyball athletes over 2 years using magnetic resonance imaging (MRI). METHODS: Thirty-six high-level volleyball athletes (18 adolescents: 56% female, mean age 16.0 ± 0.8 years; and 18 adults: 50% female, mean age 46.8 ± 5.1 years) were imaged by MRI at BL and at 2-year follow-up (FU). Prevalence and severity of cartilage lesions, subarticular bone marrow lesions (BMLs), subarticular cysts, osteophytes, and ligament and meniscus integrity were evaluated by sex and by age cohort (adolescents and adults) using the whole-organ MRI score (WORMS)...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28224199/mechanically-aligned-total-knee-arthroplasty-carries-a-risk-of-bony-gap-changes-and-flexion-extension-axis-displacement
#13
Yasuo Niki, Tomoki Sassa, Katsuya Nagai, Kengo Harato, Shu Kobayashi, Taro Yamashita
PURPOSE: The flexion-extension axis (FEA) of the femur is substantially changed after mechanically aligned total knee arthroplasty (TKA) due to a discrepancy in bone cut thickness between the posterior and distal femoral regions. This study assessed the bony gap changes and FEA displacement caused by this problem in osteoarthritis patients. METHODS: The study enrolled 60 knees from 60 patients for whom primary TKA was planned due to medial knee osteoarthritis. All patients underwent computed tomography, and 3-dimensional (3D) bone models were reconstructed on 3D-planning software...
February 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28224072/concomitant-arthroscopic-meniscal-allograft-transplantation-and-anterior-cruciate-ligament-reconstruction
#14
Bryan M Saltzman, Justin W Griffin, Nathan Wetters, Maximilian A Meyer, Brian J Cole, Adam B Yanke
In recent decades, arthroscopic meniscal allograft transplantation (MAT) has been refined as a robust option for the treatment of evolving unicompartmental tibiofemoral arthrosis in the setting of meniscal deficiency. It is imperative that the MAT be performed in a knee with anatomic stability and alignment to reduce aberrant biomechanical forces experienced by the allograft tissue to maintain its durability. Thus, in an anterior cruciate ligament (ACL)-deficient knee, ACL reconstruction (ACLR) must be performed to restore the stable knee environment for the MAT to succeed...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28224070/combined-particulated-juvenile-cartilage-allograft-transplantation-and-medial-patellofemoral-ligament-reconstruction-for-symptomatic-chondral-defects-in-the-setting-of-recurrent-patellar-instability
#15
Armin Arshi, Dean Wang, Kristofer J Jones
Successful management of patellar osteochondral lesions has proved difficult, with unreliable outcomes reported using traditional cartilage repair and restoration procedures. Unique considerations for this type of defect include the multiplanar contours of the articular surface of the patella, high compressive and shear forces with knee range of motion that may disrupt graft healing, and the potential need for concomitant surgery to address patellar malalignment and instability. We describe our preferred method for treatment of a symptomatic chondral defect in the setting of recurrent patellar instability using particulated juvenile articular cartilage allograft transplantation and medial patellofemoral ligament reconstruction with semitendinosus allograft...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28223094/a-decade-of-the-catalonian-arthroplasty-register-racat-variability-exhaustivity-and-survival-of-prostheses-between-2005-and-2014
#16
J Arias-de la Torre, A Capdevila, O Martínez, L Domingo, M Marinelli, N Robles, J Nardi, L Puig-Verdié, F Pallisó, M Espallargues
BACKGROUND AND AIM: The Catalonian Arthroplasty Register (RACat) is a public health-based population register used to analyse and evaluate hip and knee replacements in Catalonia. The aim of this study is to present the outcomes after 10 years in operation (January 2005-December 2014). METHODOLOGY: Using the information from the RACat and the minimum basic data set at hospital discharge, an analysis was made of the quality and exhaustivity of the data, as well as a descriptive analysis of the patients, prostheses, and care process...
February 17, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28220268/anterolateral-ligament-expert-group-consensus-paper-on-the-management-of-internal-rotation-and-instability-of-the-anterior-cruciate-ligament-deficient-knee
#17
REVIEW
Bertrand Sonnery-Cottet, Matthew Daggett, Jean-Marie Fayard, Andrea Ferretti, Camilo Partezani Helito, Martin Lind, Edoardo Monaco, Vitor Barion Castro de Pádua, Mathieu Thaunat, Adrian Wilson, Stefano Zaffagnini, Jacco Zijl, Steven Claes
Purpose of this paper is to provide an overview of the latest research on the anterolateral ligament (ALL) and present the consensus of the ALL Expert Group on the anatomy, radiographic landmarks, biomechanics, clinical and radiographic diagnosis, lesion classification, surgical technique and clinical outcomes. A consensus on controversial subjects surrounding the ALL and anterolateral knee instability has been established based on the opinion of experts, the latest publications on the subject and an exchange of experiences during the ALL Experts Meeting (November 2015, Lyon, France)...
February 20, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28219307/comparative-evaluation-of-posterior-cruciate-ligament-in-total-knee-arthroplasty
#18
Yuan Ma, Wei-Jia Chen, Ryuji Nagamine
INTRODUCTION: It has been realized that for osteoarthritis (OA) knee with varus deformity, posterior cruciate ligament (PCL) release resulted in the increase of the flexion gap without significant effect on the extension gap. While the effect of release on gap angle is still obscure. On the other hand, gap distance and varus angle measured under different distraction forces suggest different patterns. OBJECTIVES: In the current study, mechanical gap balance in displacement and angular alternation of extension and flexion gaps will be evaluated, with PCL fully retained or resected under different distracting forces in varus knees...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28219089/arthroscopic-treatment-of-isolated-hoffa-fractures
#19
Ersin Ercin, Emre Baca, Cemal Kural
The goal of this study was to evaluate the results of a novel method, arthroscopic fixation of isolated Hoffa fractures.This is a prospective, case series and set at Level 1 trauma center. A total of eight patients with isolated Hoffa fractures who were operated by arthroscopic screw fixation method in the anterior posterior direction with 6.5 mm cannulated screws were followed up prospectively. Same surgical method used for all patients. All patients underwent the same rehabilitation program and active range of motion (ROM) exercises were started immediately...
February 20, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28219088/single-bundle-versus-double-bundle-anterior-cruciate-ligament-reconstruction-a-prospective-randomized-controlled-trial-with-6-year-follow-up
#20
Paolo Adravanti, Francesco Dini, Laura de Girolamo, Massimo Cattani, Michele Attilio Rosa
Single-bundle (SB) anterior cruciate ligament (ACL) reconstruction is increasingly used in a large number of patients and it allows obtaining very good clinical and subjective results; however, functional tests show a persistent rotational instability. Biomechanical studies seem to indicate that double-bundle (DB) ACL reconstruction allows to obtain increased anterior and rotational stability compared with SB. The aim of this prospective randomized controlled study was to compare the clinical outcome and the possible osteoarthritic evolution of patients treated either with a SB (freehand transtibial femoral tunnel) or with a DB technique (outside-in for posterolateral femoral tunnel/inside-out for anteromedial femoral tunnel) at a final follow-up of 6 years...
February 20, 2017: Journal of Knee Surgery
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