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Knee injury

Amarateedha H Prak, Kristina M Dela Rosa
With skin lesions that have failed previous treatments, consideration for an atypical mycobacteria, specifically Mycobacterium marinum, infection should be suspected. Importance of the history cannot be stressed as this is a clue that the patient may have been inoculated and infected in the field environment. A marine with chronic right knee plaque for 3 yr that first appeared after a field exercise at The Basic School but worsened despite treatment with clindamycin, TMP-SMX, and incision and drainage in 2012...
March 14, 2018: Military Medicine
Oren Schwartz, Itzik Malka, Cara H Olsen, Israel Dudkiewicz, Tarif Bader
Introduction: Integration of females in combat units poses a unique challenge for army commanders around the world. The purpose of this study is to provide a detailed up-to-date situation report regarding overuse injuries among combat female warriors in the IDF (Israeli Defense Forces) in order to enable evidence-based decision-making, prevention policy, and further research of this highly significant military public health issue. Methods: A cross-sectional descriptive study was conducted including 2,519 females recruited to combat duties during the year of 2013...
March 14, 2018: Military Medicine
Oren Schwartz, Boris Kanevsky, M A J Sergey Kutikov, Cara H Olsen, Israel Dudkiewicz
Introduction: Attrition from training is associated with substantial financial and personnel loss. There is a plethora of medical literature and research of attrition rates related to initial/phase 1 training (basic combat training); however, the analysis of second phase training (commanders training, consisting of schools that qualify junior commanders and officers for infantry and non-infantry combat units) is limited. The purpose of this study is to perform a comprehensive survey regarding to medical attrition from commanders training in the IDF (Israeli Defense Forces) in order to present the commanders of the IDF a detailed situation report that will serve as an evidence-based platform for future policy planning and implementation...
March 14, 2018: Military Medicine
Alex Han, Alfred C Gellhorn
OBJECTIVE: Knee osteoarthritis (OA) has a significant impact on quality of life (QOL). Although QOL is generally thought to diminish over time, it is unknown if different patient groups demonstrate unique patterns of change in QOL. We sought to identify and characterize QOL trajectories in knee OA. DESIGN: This prospective cohort study included 1013 individuals with symptomatic knee OA from the Osteoarthritis Initiative. We used group-based trajectory modeling to identify distinct temporal patterns of change in the Knee Injury and Osteoarthritis Outcome Score (KOOS) QOL subscale over 8 years...
March 15, 2018: American Journal of Physical Medicine & Rehabilitation
Mayumi Matsuda, Yuki Mataki, Hirotaka Mutsuzaki, Kenichi Yoshikawa, Kazushi Takahashi, Keiko Enomoto, Kumiko Sano, Masafumi Mizukami, Kazuhide Tomita, Haruka Ohguro, Nobuaki Iwasaki
[Purpose] Robot-assisted gait training (RAGT) using Hybrid Assistive Limb (HAL, CYBERDYNE) was previously reported beneficial for stroke and spinal cord injury patients. Here, we investigate the immediate effect of a single session of RAGT using HAL on gait function for cerebral palsy (CP) patients. [Subjects and Methods] Twelve patients (average age: 16.2 ± 7.3 years) with CP received a single session of RAGT using HAL. Gait speed, step length, cadence, single-leg support per gait cycle, hip and knee joint angle in stance, and swing phase per gait cycle were assessed before, during, and immediately after HAL intervention...
February 2018: Journal of Physical Therapy Science
Jinkyu Lee, Yongnam Song, Choongsoo S Shin
BACKGROUND: During landing, the ankle angle at initial contact (IC) exhibits relatively wide individual variation compared to the knee and hip angles. However, little is known about the effect of different IC ankle angles on energy dissipation. RESEARCH QUESTION: The purpose of this study was to investigate the relationship between individual ankle angles at IC and energy dissipation in the lower extremity joints. METHODS: Twenty-seven adults performed single-leg landings from a 0...
March 7, 2018: Gait & Posture
Enda F Whyte, Chris Richter, Siobhan O'Connor, Kieran A Moran
Anterior cruciate ligament (ACL) injuries frequently occur during side cutting maneuvers when fatigued or reacting to the sporting environment. Trunk and hip biomechanics are proposed to influence ACL loading during these activities. However, the effects of fatigue and unanticipation on the biomechanics of the kinetic chain may be limited by traditional discrete point analysis. We recruited twenty-eight male, varsity, Gaelic footballers (21.7±2.2 years; 178.7±14.6m; 81.8±11.4kg) to perform anticipated and unanticipated side cutting maneuvers pre- and post- a high intensity, intermittent exercise protocol (HIIP)...
March 13, 2018: Journal of Strength and Conditioning Research
Kurt P Spindler, Laura J Huston, Kevin M Chagin, Michael W Kattan, Emily K Reinke, Annunziato Amendola, Jack T Andrish, Robert H Brophy, Charles L Cox, Warren R Dunn, David C Flanigan, Morgan H Jones, Christopher C Kaeding, Robert A Magnussen, Robert G Marx, Matthew J Matava, Eric C McCarty, Richard D Parker, Angela D Pedroza, Armando F Vidal, Michelle L Wolcott, Brian R Wolf, Rick W Wright
BACKGROUND: The long-term prognosis and risk factors for quality of life and disability after anterior cruciate ligament (ACL) reconstruction remain unknown. Hypothesis/Purpose: Our objective was to identify patient-reported outcomes and patient-specific risk factors from a large prospective cohort at a minimum 10-year follow-up after ACL reconstruction. We hypothesized that meniscus and articular cartilage injuries, revision ACL reconstruction, subsequent knee surgery, and certain demographic characteristics would be significant risk factors for inferior outcomes at 10 years...
March 2018: American Journal of Sports Medicine
Alexandra DeJong, L Colby Mangum, Jacob Resch, Susan A Saliba
CONTEXT: Medial knee displacement (MKD) is a common risk factor for lower extremity injury and is related to altered gluteal muscle activity. Ultrasound imaging (USI) is a reliable means to explore mechanical muscle activity, however no information exists regarding USI of the gluteals during gait in a MKD population. OBJECTIVE: To determine differences in USI gluteal muscle activity during gait in individuals with and without MKD. DESIGN: Descriptive laboratory study...
March 15, 2018: Journal of Sport Rehabilitation
Bahar Bilgen, Chathuraka T Jayasuriya, Brett D Owens
The meniscus is the most commonly injured structure in the human knee. Meniscus deficiency has been shown to lead to advanced osteoarthritis (OA) due to abnormal mechanical forces, and replacement strategies for this structure have lagged behind other tissue engineering endeavors. The challenges include the complex 3D structure with individualized size parameters, the significant compressive, tensile and shear loads encountered, and the poor blood supply. In this progress report, a review of the current clinical treatments for different types of meniscal injury is provided...
March 15, 2018: Advanced Healthcare Materials
Grace E Martin, Heng He, Amy T Makley, Timothy A Pritts, Joel B Elterman, Jay A Johannigman, Michael D Goodman
BACKGROUND: Penetrating injuries to the extremity proximal to the elbow or knee are anatomic criteria for full trauma team activation by the American College of Surgeon's Committee on Trauma standards. This criterion lacks objective evidence-based support. Overtriage of trauma team activation may result in excessive costs and resource burden at trauma centers. We hypothesized that full trauma team activation for penetrating injuries to the proximal extremities by anatomic criteria alone may lead to significant overtriage...
March 12, 2018: Journal of Trauma and Acute Care Surgery
Michael Day, Michael Ryan, Eric Strauss
The management of meniscal root injuries has changed as biomechanical studies have demonstrated the importance of meniscal integrity in load distribution across the knee joint. Meniscal injury causes altered joint mechanics, which is postulated to be related to the onset of arthrosis. Arthroscopic meniscal root repair has been shown to restore more normal joint mechanics and is considered a treatment option in the appropriately indicated patient. Short- and midterm clinical results of meniscal root repair are promising, but long-term results are yet to be established...
March 2018: Bulletin of the Hospital for Joint Diseases
Jian-Wen Li, Feng Ye, Da-Wei Bi, Xiao-Dong Zheng, Jian-Liang Chen
OBJECTIVE: To discusses the clinical effects of arthroscopy combined with minimally invasive percutaneous plate osteosynthesis(MIPPO) technology in treating Schatzker IV tibial plateau fractures. METHODS: From January 2012 to January 2016, 19 patients with Schatzker type IV tibial plateau fractures were treated with arthroscopy combined with minimally invasive technique including 12 males and 7 females with an average age of 46.5 years old ranging from 19 to 78 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Jia-Ping Pan, Xu-Can Wang, Ming-Hong Huang
OBJECTIVE: To investigate the characteristics and clinical treatment of avulsion fracture of the lateral edge of tibial plateau(segond fracture) in knee joint injuries. METHODS: From January 2011 and December 2015, 29 patients with Segond fracture were treated with minimally invasive arthroscopy technology in intra-articular injuries combined with double anchor nail fixation in avulsion fracture of the lateral edge of tibial plateau, including 17 males and 12 females with an average age of 41 years old ranging from 27 to 62 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Natalie C Rollick, Devin B Lemmex, Yohei Ono, Carol R Reno, David A Hart, Ian Ky Lo, Gail M Thornton
Background: When considering the "joint as an organ", the tissues in a joint act as complementary components of an organ, and the "set point" is the cellular activity for homeostasis of the joint tissues. Even in the absence of injury, joint tissues have adaptive responses to processes, like aging and menopause, which result in changes to the set point. Purpose: The purpose of this study in a preclinical model was to investigate age-related and menopause-related changes in knee-joint tissues with the hypothesis that tissues will change in unique ways that reflect their differing contributions to maintaining joint function (as measured by joint laxity) and the differing processes of aging and menopause...
2018: Clinical Interventions in Aging
Stefan O Schrade, Katrin Dätwyler, Marius Stücheli, Kathrin Studer, Daniel-Alexander Türk, Mirko Meboldt, Roger Gassert, Olivier Lambercy
BACKGROUND: Powered exoskeletons are a promising approach to restore the ability to walk after spinal cord injury (SCI). However, current exoskeletons remain limited in their walking speed and ability to support tasks of daily living, such as stair climbing or overcoming ramps. Moreover, training progress for such advanced mobility tasks is rarely reported in literature. The work presented here aims to demonstrate the basic functionality of the VariLeg exoskeleton and its ability to enable people with motor complete SCI to perform mobility tasks of daily life...
March 13, 2018: Journal of Neuroengineering and Rehabilitation
Gregory C Fanelli, David G Fanelli
The posterior cruciate ligament (PCL)-based multiple ligament injury, or dislocated knee, is often part of a multisystem injury complex that not only includes the knee ligaments, but may also include blood vessels, skin, nerves, fractures, and other organ system trauma. These factors must be considered in the scope of treating this complex knee injury. These complex knee ligament injuries can result in significant functional instability for the affected individual. This article will discuss multiple ligament knee injury evaluation, treatment, and special considerations in the pediatric and adolescent population...
March 13, 2018: Journal of Knee Surgery
Arnhild Bakken, Stephen Targett, Tone Bere, Cristiano Eirale, Abdulaziz Farooq, Andrea B Mosler, Johannes L Tol, Rod Whiteley, Karim M Khan, Roald Bahr
BACKGROUND: Lower extremity muscle strength tests are commonly used to screen for injury risk in professional soccer. However, there is limited evidence on the ability of such tests in predicting future injuries. PURPOSE: To examine the association between hip and thigh muscle strength and the risk of lower extremity injuries in professional male soccer players. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Professional male soccer players from 14 teams in Qatar underwent a comprehensive strength assessment at the beginning of the 2013/2014 and 2014/2015 seasons...
March 1, 2018: American Journal of Sports Medicine
Kevin Taliaferro, Alexander Crawford, Justin Jabara, Jonathan Lynch, Edward Jung, Raimonds Zvirbulis, Trevor Banka
BACKGROUND: Intraarticular steroid injections are a common first-line therapy for severe osteoarthritis, which affects an estimated 27 million people in the United States. Although topical, oral, intranasal, and inhalational steroids are known to increase intraocular pressure in some patients, the effect of intraarticular steroid injections on intraocular pressure has not been investigated, to the best of our knowledge. If elevated intraocular pressure is sustained for long periods of time or is of sufficient magnitude acutely, permanent loss of the visual field can occur...
March 9, 2018: Clinical Orthopaedics and related Research
Michael Wilkinson, Alistair Ewen, Nicholas Caplan, David O'Leary, Neil Smith, Richard Stoneham, Lee Saxby
The effect of textured insoles on kinetics and kinematics of overground running was assessed. 16 male injury-free-recreational runners attended a single visit (age 23 ± 5 yrs; stature 1.78 ± 0.06 m; mass 72.6 ± 9.2 kg). Overground 15-m runs were completed in flat, canvas plimsolls both with and without textured insoles at self-selected velocity on an indoor track in an order that was balanced among participants. Average vertical loading rate and peak vertical force (Fpeak ) were captured by force platforms...
March 12, 2018: European Journal of Sport Science
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