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Knee injuries

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https://www.readbyqxmd.com/read/28343325/mri-can-accurately-detect-meniscal-ramp-lesions-of-the-knee
#1
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/28343286/a-mimic-of-sexually-motivated-homicide-insect-stings-and-heat-exhaustion-in-a-forest
#2
Nancy X Liu, Michael S Pollanen
We report the case a woman who was found dead in a forest. The body was nude and the position of the body suggested a sexually motivated homicide. We concluded that death was not related to homicide, but was related to the conjunction of environmental factors, including insect stings, and acute psychosis. A medicolegal death investigation with postmortem examination was undertaken to determine cause of death. At the scene, the body was supine with legs spread apart and the knees flexed, exposing the external genitalia...
March 25, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28340312/a-preliminary-investigation-on-the-effect-of-extracorporeal-shock-wave-therapy-as-a-treatment-for-neurogenic-heterotopic-ossification-following-traumatic-brain-injury-part-ii-effects-on-function
#3
J E Reznik, E Biros, Y Sacher, O Kibrik, S Milanese, S Gordon, M P Galea
INTRODUCTION: Neurogenic heterotopic ossification (NHO) occurs as a complication of traumatic brain injury (TBI). Management of clinically significant NHO remains variable. Complications of mature NHO include limitation of mobility. The effect of the extracorporeal shock wave therapy (ESWT) on range of motion at hip and knee, and function in patients with TBI with chronic NHO was investigated. METHODS: A series of single-case studies applying ESWT to chronic NHO at the hip or knee of 11 patients with TBI were undertaken at a rehabilitation hospital...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28340308/a-preliminary-investigation-on-the-effect-of-extracorporeal-shock-wave-therapy-as-a-treatment-for-neurogenic-heterotopic-ossification-following-traumatic-brain-injury-part-i-effects-on-pain
#4
J E Reznik, E Biros, A C Lamont, Y Sacher, O Kibrik, S Milanese, S Gordon, M P Galea
INTRODUCTION: Neurogenic heterotopic ossification (NHO) is a complication of a neurological injury following traumatic brain injury (TBI) and may be present around major synovial joints. It is often accompanied by severe pain, which may lead to limitation in activities of daily living. Currently, a common intervention for NHO is surgery, which has been reported to carry many additional risks. This study was designed to assess the effect of extracorporeal shock wave therapy (ESWT) on pain in patients with TBI with chronic NHO...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28339288/the-proximal-tibiofibular-joint-a-biomechanical-analysis-of-the-anterior-and-posterior-ligamentous-complexes
#5
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/28338589/managing-hip-fracture-and-lower-limb-surgery-in-the-emergency-setting-potential-role-of-non-vitamin-k-antagonist-oral-anticoagulants
#6
William Fisher
Trauma, immobilization, and subsequent surgery of the hip and lower limb are associated with a high risk of developing venous thromboembolism (VTE). Individuals undergoing hip fracture surgery (HFS) have the highest rates of VTE among orthopedic surgery and trauma patients. The risk of VTE depends on the type and location of the lower limb injury. Current international guidelines recommend routine pharmacological thromboprophylaxis based on treatment with heparins, fondaparinux, dose-adjusted vitamin K antagonists and acetylsalicylic acid for patients undergoing emergency HFS; however, not all guidelines recommend pharmacological prophylaxis for patients with lower limb injuries...
March 23, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28338388/preferred-hip-strategy-during-landing-reduces-knee-abduction-moment-in-collegiate-female-soccer-players
#7
Anh-Dung Nguyen, Jeffrey B Taylor, Taylor G Wimbish, Jennifer L Keith, Kevin R Ford
CONTEXT: Hip focused interventions are aimed to decrease frontal plane knee loading related to anterior cruciate ligament (ACL) injuries. Whether a preferred hip landing strategy decreases frontal plane knee loading is unknown. OBJECTIVE: To determine if a preferred hip landing strategy during a drop vertical jump (DVJ) is utilized during a single leg landing (SLL) task and whether differences in frontal plane knee loading are consistent between a DVJ and a SLL task...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28337851/low-prevalence-of-knee-chondrocalcinosis-and-its-catabolic-association-by-use-of-serum-matrix-metalloproteinase-3-a-rural-japanese-population-study
#8
Daisuke Chiba, Eiichi Tsuda, Eiji Sasaki, Ippei Takahashi, Shigeyuki Nakaji, Yasuyuki Ishibashi
AIM: This study aimed to elucidate the prevalence of radiographic knee chondrocalcinosis (CC) and to clarify whether CC is correlated with self-reported knee symptoms and a serum catabolic biomarker. METHODS: A total of 1278 volunteers participated. Plain radiographs of both knees were obtained. Identification of a linear calcification in the knee joint space was defined as CC. Patients with a Kellgren-Lawrence grade of 2 or more were considered to have knee osteoarthritis (OA)...
March 24, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28337590/acl-reconstructed-and-acl-deficient-individuals-show-differentiated-trunk-hip-and-knee-kinematics-during-vertical-hops-more-than-20%C3%A2-years-post-injury
#9
Jonas L Markström, Eva Tengman, Charlotte K Häger
PURPOSE: Little is known regarding movement strategies in the long term following injury of the anterior cruciate ligament (ACL), and even less about comparisons of reconstructed and deficient knees in relation to healthy controls. The present purpose was to compare trunk, hip, and knee kinematics during a one-leg vertical hop (VH) ~20 years post-ACL injury between persons treated with surgery and physiotherapy (ACLR), solely physiotherapy (ACLPT), and controls (CTRL). Between-leg kinematic differences within groups were also investigated...
March 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28336150/effects-of-foot-rotation-positions-on-knee-valgus-during-single-leg-drop-landing-implications-for-acl-injury-risk-reduction
#10
P S P Teng, P W Kong, K F Leong
BACKGROUND: Non-contact anterior cruciate ligament (ACL) injuries commonly occur when athletes land in high risk positions such as knee valgus. The position of the foot at landing may influence the transmission of forces from the ankle to the knee. Using an experimental approach to manipulate foot rotation positions, this study aimed to provide new insights on how knee valgus during single-leg landing may be influenced by foot positions. METHODS: Eleven male recreational basketball players performed single-leg drop landings from a 30-cm high platform in three foot rotation positions (toe-in, toe-forward and toe-out) at initial contact...
March 20, 2017: Knee
https://www.readbyqxmd.com/read/28334016/does-shoe-heel-design-influence-ground-reaction-forces-and-knee-moments-during-maximum-lunges-in-elite-and-intermediate-badminton-players
#11
Wing-Kai Lam, Jaejin Ryue, Ki-Kwang Lee, Sang-Kyoon Park, Jason Tak-Man Cheung, Jiseon Ryu
BACKGROUND: Lunge is one frequently executed movement in badminton and involves a unique sagittal footstrike angle of more than 40 degrees at initial ground contact compared with other manoeuvres. This study examined if the shoe heel curvature design of a badminton shoe would influence shoe-ground kinematics, ground reaction forces, and knee moments during lunge. METHODS: Eleven elite and fifteen intermediate players performed five left-forward maximum lunge trials with Rounded Heel Shoe (RHS), Flattened Heel Shoe (FHS), and Standard Heel Shoes (SHS)...
2017: PloS One
https://www.readbyqxmd.com/read/28333575/is-clinical-measurement-of-anatomic-axis-of-the-femur-adequate
#12
Chi-Chuan Wu
Background and purpose - The accuracy of using clinical measurement from the anterior superior iliac spine (ASIS) to the center of the knee to determine an anatomic axis of the femur has rarely been studied. A radiographic technique with a full-length standing scanogram (FLSS) was used to assess the adequacy of the clinical measurement. Patients and methods - 100 consecutive young adult patients (mean age 34 (20-40) years) with chronic unilateral lower extremity injuries were studied. The pelvis and intact contralateral lower extremity images in the FLSS were selected for study...
March 23, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28332404/conceptual-design-and-implantation-of-an-external-fixator-with-improved-mobility-for-knee-rehabilitation
#13
Gianluca Gatti
A hinged external fixator is used to allow early knee rehabilitation in case of injury or trauma, as an alternative approach to immobilization. It is mainly adopted for the treatment of dislocations, which involve tearing of the ligaments, and it basically consists of two links connected to each other by a revolute joint. Each link is fixed to the femur and tibia via pin fixation, and the revolute joint is approximately aligned to the knee flexion-extension (FE) axis. The advantage in its implantation is to protect ligament reconstruction, while allowing for an aggressive rehabilitation...
March 23, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28332046/ramp-lesions-in-acl-deficient-knees-in-children-and-adolescent-population-a-high-prevalence-confirmed-in-intercondylar-and-posteromedial-exploration
#14
Matthieu Malatray, Sebastien Raux, Adrien Peltier, Clemence Pfirrmann, Romain Seil, Franck Chotel
PURPOSE: Ramp lesions are common in ACL deficient knees. Their diagnosis is difficult and, therefore, they may be underestimated. So far, no study analyzed their prevalence in a pediatric population. The diagnosis of these Ramp lesions is of major clinical relevance because of a frequent misestimating and technic difficulties. Ramp lesions might be associated with residual knee pain and instability after ACL reconstruction. The aim of this study was to evaluate the prevalence of ramp lesions explored through a systematic intercondylar and posteromedial arthroscopic approach during an ACL reconstruction in a pediatric and adolescent population...
March 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28331459/heterotopic-ossification-of-the-calvarium-following-bilateral-craniectomies-in-traumatic-brain-injury
#15
Rafael A Vega, Leslie Hutchins
BACKGROUND: Heterotopic ossification (HO) is defined as ectopic bone formation following traumatic brain injury. Patients typically develop lesions in the hips, knees, and elbows that cause pain, restricted range of motion, nerve impingement, and pressure ulcers. CASE REPORT: We report an unusual presentation of HO in an 18-year-old male who was involved in a motor vehicle accident and subsequently developed malignant intracranial pressure. His HO developed following bilateral craniectomies in which 2 different dural substitutes were used...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28330449/a-cross-sectional-study-of-the-effects-of-load-carriage-on-running-characteristics-and-tibial-mechanical-stress-implications-for-stress-fracture-injuries-in-women
#16
Chun Xu, Amy Silder, Ju Zhang, Jaques Reifman, Ginu Unnikrishnan
BACKGROUND: Load carriage is associated with musculoskeletal injuries, such as stress fractures, during military basic combat training. By investigating the influence of load carriage during exercises on the kinematics and kinetics of the body and on the biomechanical responses of bones, such as the tibia, we can quantify the role of load carriage on bone health. METHODS: We conducted a cross-sectional study using an integrated musculoskeletal-finite-element model to analyze how the amount of load carriage in women affected the kinematics and kinetics of the body, as well as the tibial mechanical stress during running...
March 23, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28327163/injuries-in-male-and-female-semi-professional-football-soccer-players-in-nigeria-prospective-study-of-a-national-tournament
#17
Oluwatoyosi Babatunde Alex Owoeye, Ayoola Ibifubara Aiyegbusi, Oluwaseun Akinleye Fapojuwo, Oluwaseun Abdulganiyu Badru, Anike Rasheedat Babalola
BACKGROUND: Research on the epidemiology of football injuries in Africa is very sparse despite its importance for injury prevention planning in a continent with limited sports medicine resources. The vast majority of studies available in literature were conducted in Europe and only a very few studies have prospectively reported the pattern of football injury in Africa. The purpose of this study was to evaluate the incidence and pattern of injuries in a cohort of male and female semi-professional football players in Nigeria...
March 21, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28327133/improved-knee-biomechanics-among-patients-reporting-a-good-outcome-in-knee-related-quality-of-life-one-year-after-total-knee-arthroplasty
#18
Josefine E Naili, Per Wretenberg, Viktor Lindgren, Maura D Iversen, Margareta Hedström, Eva W Broström
BACKGROUND: It is not well understood why one in five patients report poor outcomes following knee arthroplasty. This study evaluated changes in knee biomechanics, and perceived pain among patients reporting either a good or a poor outcome in knee-related quality of life after total knee arthroplasty. METHODS: Twenty-eight patients (mean age 66 (SD 7) years) were included in this prospective study. Within one month of knee arthroplasty and one year after surgery, patients underwent three-dimensional (3D) gait analysis, completed the Knee Injury and Osteoarthritis Outcome Score (KOOS), and rated perceived pain using a visual analogue scale...
March 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28326408/traumatic-anterior-knee-dislocation-after-total-knee-arthroplasty
#19
Richard S Ahn, Matthew J Brown, Mario D Santilli
This article describes a traumatic complete anterior knee dislocation of a previously well-functioning total knee arthroplasty. A thorough physical examination with appropriate radiographic imaging study is required for proper evaluation and treatment of this injury, as it is often associated with neurovascular injury and subsequent global instability of the injured knee is likely.
September 2016: Arthroplast Today
https://www.readbyqxmd.com/read/28326399/total-knee-replacement-for-tricompartmental-arthritis-in-a-patient-with-a-below-knee-amputation-after-a-previous-closing-wedge-high-tibial-osteotomy
#20
Mark A Fleming, Michael C Dixon
This is a report of a 64-year-old man who had undergone a high tibial osteotomy (HTO) 17 years ago of his right knee for medial compartment osteoarthritis; 5 days later, he received a below-knee amputation owing to a missed popliteal artery injury at the time of the HTO. We elected to perform a total knee replacement (TKR) for progressive arthritis of the ipsilateral knee 17 years after the transtibial amputation. Although there is a plethora of literature regarding TKR in the contralateral knee of amputees, there is a paucity of data of TKR in the ipsilateral knee...
June 2016: Arthroplasty Today
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