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Knee injury

Nina S Nnamani, Judson C Janak, Steven J Hudak, Jessica C Rivera, Eluned A Lewis, Douglas W Soderdahl, Jean A Orman
BACKGROUND: In Operation Enduring Freedom and Operation Iraqi Freedom (OEF/OIF), genitourinary (GU) wounds have occurred in unprecedented numbers. Severe concomitant injuries, including extremity amputations, are common. The epidemiology of GU injury and extremity amputation in OEF/OIF has not been described. MATERIALS AND METHODS: The Department of Defense Trauma Registry was queried from October 2001 through August 2013 to identify all surviving US male service members with GU injuries sustained in OEF/OIF...
November 2016: Journal of Trauma and Acute Care Surgery
D M Frost, T A C Beach, I Crosby, S M McGill
BACKGROUND: There is limited data available regarding the cost of firefighter injuries. This information is necessary to develop targeted injury prevention strategies. OBJECTIVE: To categorize the cost of injuries filed in 2012 by firefighters from a from a large department by job duty, injury type, body part affected, and the general motion pattern employed at the time of injury. METHODS: Data were taken from reports filed by CFD personnel and claims filed with the Workers' Compensation Board (WCB) of Alberta between January 1, 2012 and December 31, 2012...
October 17, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
Ingrid Eitzen, Hege Grindem, Agnethe Nilstad, Håvard Moksnes, May Arna Risberg
BACKGROUND: Reduced quadriceps strength influences knee function and increases the risk of knee osteoarthritis. Thus, it is of significant clinical relevance to precisely quantify strength deficits in patients with knee injuries. PURPOSE: To evaluate isokinetic concentric quadriceps muscle strength torque values, assessed both from peak torque and at specific knee flexion joint angles, in patients with anterior cruciate ligament (ACL) injury, focal cartilage lesions, and degenerative meniscus tears...
October 2016: Orthopaedic Journal of Sports Medicine
Andrea Veljkovic, Joshua Tennant, Chamnanni Rungprai, Kaniza Zahra Abbas, Phinit Phisitkul
BACKGROUND: Open calcaneal osteotomy using traditional methods is associated with complications such as sural nerve injury and potential wound healing problems. We hypothesized that by using novel minimally invasive techniques, these potential risks could be mitigated. This anatomic cadaveric study serves to assess the safety of percutaneous endoscopically assisted calcaneal osteotomy (PECO) compared to a traditional open osteotomy technique. METHODS: Anatomic safety of PECO was assessed using 8 fresh-frozen cadaver below-knee specimens...
October 20, 2016: Foot & Ankle International
Martin Duignan, Mary McGibney
BACKGROUND: Patellar dislocations are common, particularly in the adolescent polulation. Registered Advanced Nurse Practitioners are healthcare professionals who can appropriately manage these injuries to minimise the risk of chronicity. METHODS: This is a case study which uses a clinical examplar from the authors practice focusing on the assessment, diagnosis and managment of patellar dislocations. Particular reference is made of the significance of the MPFL. RESULTS: This paper highlights the importance of recognition of appropriate management of patellar dislocations in the ED setting...
October 17, 2016: International Emergency Nursing
Michelle L Delco, John G Kennedy, Lawrence J Bonassar, Lisa A Fortier
The diagnosis of ankle osteoarthritis (OA) is increasing as a result of advancements in non-invasive imaging modalities such as magnetic resonance imaging, improved arthroscopic surgical technology and heightened awareness among clinicians. Unlike OA of the knee, primary or age-related ankle OA is rare, with the majority of ankle OA classified as post-traumatic (PTOA). Ankle trauma, more specifically ankle sprain, is the single most common athletic injury, and no effective therapies are available to prevent or slow progression of PTOA...
October 20, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
M Henze, H Alfonso, L Flicker, J George, S A Paul Chubb, G J Hankey, O P Almeida, J Golledge, P E Norman, B B Yeap
AIMS: To investigate behavioural, physical and biochemical characteristics associated with diabetes in the oldest age group of elderly men. METHODS: We conducted a cross-sectional analysis of community-dwelling men aged 79-97 years from Perth, Western Australia. Lifestyle behaviours, self-rated health, physical function, and fasting glucose and HbA1c levels were assessed. RESULTS: Of 1426 men, 315 had diabetes (22%). Men with diabetes were of similar age to men without (84...
October 20, 2016: Diabetic Medicine: a Journal of the British Diabetic Association
Aaron J Krych, Patrick J Reardon, Nick R Johnson, Rohith Mohan, Logan Peter, Bruce A Levy, Michael J Stuart
PURPOSE: Medial meniscus posterior root tears (MMPRTs) are a significant source of pain and dysfunction, but little is known about the natural history and outcome and for non-operative management of these lesions. The purpose of this study was to evaluate (1) the mid-term clinical and radiographic outcomes of non-operative treatment of MMPRTs and (2) risk factors for worse outcomes. METHODS: A retrospective review was performed for patients with symptomatic, unrepaired MMPRTs and a minimum 2-year follow-up for IKDC and Tegner outcome scores...
October 19, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Philippe P Van Overschelde, David A Fitch
BACKGROUND: Patient dissatisfaction following total knee replacement (TKR) has been reported as high as 24%. Most previous studies have focused on satisfaction for TKR overall, with few reporting satisfaction for specific implant designs. The purpose of this study was to assess patient satisfaction for TKRs performed using a second generation medial-pivot system (EVOLUTION(®), MicroPort Orthopedics Inc., Arlington, TN, USA). METHODS: Of a single surgeon's first 250 consecutive TKRs performed using the subject system, 224 completed a patient satisfaction assessment, the Knee Injury and Osteoarthritis Outcome Score (KOOS), range of motion, and radiographs at 2 months follow-up...
September 2016: Annals of Translational Medicine
Kyle T Aune, Joseph M Powers
BACKGROUND: Extreme conditioning programs (ECPs) are fitness training regimens relying on aerobic, plyometric, and resistance training exercises, often with high levels of intensity for a short duration of time. These programs have grown rapidly in popularity in recent years, but science describing the safety profile of these programs is lacking. HYPOTHESIS: The rate of injury in the extreme conditioning program is greater than the injury rate of weightlifting and the majority of injuries occur to the shoulder and back...
October 19, 2016: Sports Health
Yunzhu Meng, Wansoo Pak, Berkan Guleyupoglu, Bharath Koya, F Scott Gayzik, Costin D Untaroiu
Child pedestrian protection deserves more attention in vehicle safety design since they are the most vulnerable road users who face the highest mortality rate. Pediatric Finite Element (FE) models could be used to simulate and understand the pedestrian injury mechanisms during crashes in order to mitigate them. Thus, the objective of the study was to develop a computationally efficient (simplified) six-year-old (6YO-PS) pedestrian FE model and validate it based on the latest published pediatric data. The 6YO-PS FE model was developed by morphing the existing GHBMC adult pedestrian model...
October 16, 2016: Accident; Analysis and Prevention
Anand Kaul, Sunil Manjila, Jonathan P Miller
: Isadore Max Tarlov (1905-1977) is primarily remembered for his 1938 description of the eponymous perineural "Tarlov cyst." However, during his long career as a neurosurgeon and researcher, he was responsible for many other observations and inventions that influenced the development of neurosurgery in the 20th century. While studying at Johns Hopkins Medical School he was acquainted with Walter Dandy, and he became the first resident to study under Wilder Penfield at the newly formed Montreal Neurological Institute...
November 2016: Neurosurgery
Lotte Schut, Arnlaug Wangensteen, Jolanda Maaskant, Johannes L Tol, Roald Bahr, Maarten Moen
BACKGROUND: The current literature on the value of clinical evaluation for predicting time to return to sport (RTS) after acute hamstring injuries has not been systematically summarised. OBJECTIVES: The aim of this study was to systematically review the literature on the prognostic value of clinical findings (patient history and physical examination) for time to RTS after acute hamstring injuries in athletes. DATA SOURCES: The databases PubMed, EMBASE, SPORTDiscus and Cochrane Library were searched between October 2014 and August 2015...
October 18, 2016: Sports Medicine
Elizabeth M Meier, Bin Wu, Aamir Siddiqui, Donna G Tepper, Michael T Longaker, Mai T Lam
: Efforts have been made to engineer knee meniscus tissue for injury repair, yet most attempts have been unsuccessful. Creating a cell source that resembles the complex, heterogeneous phenotype of the meniscus cell remains difficult. Stem cell differentiation has been investigated, mainly using bone marrow mesenchymal cells and biochemical means for differentiation, resulting in no solution. Mechanical stimulation has been investigated to an extent with no conclusion. Here, we explore the potential for and effectiveness of mechanical stimulation to induce the meniscal phenotype in adipose-derived stromal cells...
September 2016: Plastic and Reconstructive Surgery. Global Open
Sebastian Zabierek, Jakub Zabierek, Adam Kwapisz, Marcin E Domzalski
BACKGROUND AND PURPOSE: The patella plays an important role in knee biomechanics and provides anterior coverage of the knee joint. One to two percent of the population has an anatomical variant of patella called a bipartite patella that usually does not case pain. However, occasionally after injury or overuse during sport it can be a source of anterior knee pain. The purpose of this case report was to present a rare variant of bipartite patella and highlight conservative treatment of this condition...
October 2016: International Journal of Sports Physical Therapy
Michael S Crowell, Erik A Dedekam, Michael R Johnson, Scott C Dembowski, Richard B Westrick, Donald L Goss
BACKGROUND: While advanced diagnostic imaging is a large contributor to the growth in health care costs, direct-access to physical therapy is associated with decreased rates of diagnostic imaging. No study has systematically evaluated with evidence-based criteria the appropriateness of advanced diagnostic imaging, including magnetic resonance imaging (MRI), when ordered by physical therapists. The primary purpose of this study was to describe the appropriateness of magnetic resonance imaging (MRI) or magnetic resonance arthrogram (MRA) exams ordered by physical therapists in a direct-access sports physical therapy clinic...
October 2016: International Journal of Sports Physical Therapy
Kristine M Fischenich, Hannah M Pauly, Keith D Button, Ryan S Fajardo, Charles E DeCamp, Roger C Haut, Tammy L Haut Donahue
OBJECTIVE: The objective of this study was to monitor the progression of joint damage in two animal models of knee joint trauma using two non-invasive, clinically available imaging modalities. METHODS: A 3-T clinical magnet and micro-computed tomography was used to document changes immediately following injury (acute) and post injury (chronic) at time points of 4, 8, or 12 weeks. Joint damage was recorded at dissection and compared to the chronic MRI record. Fifteen Flemish Giant rabbits were subjected to a single tibiofemoral compressive impact (ACLF), and 18 underwent a combination of ACL and meniscal transection (mACLT)...
October 15, 2016: Osteoarthritis and Cartilage
Basim Kamil Hassan, Ram Benny Christian Dessau, Arne Sahlström
BACKGROUND: Permanent renal dysfunction is considered as being a serious complication which may occur after major surgery and which furthermore may lead to increased morbidity and mortality. The objective of this study was to analyze the incidence of long-term postoperative renal dysfunction after primary total hip and knee joint replacements. METHODS: Long-term postoperative renal dysfunction was analyzed in a retrospective study of 1301 consecutive primary total hip and knee joint replacements performed between January 2009 and December 2013...
October 19, 2016: Journal of Orthopaedic Surgery and Research
W Wang, L Liu, X Chang, Z Y Jia, J Z Zhao, W D Xu
BACKGROUND: The Lysholm Knee Score (LKS) is widely used and is one of the most effective questionnaires employed to assess knee injuries. Although LKS has been translated into multiple languages, there is no Chinese version even though China has the largest population of patients with knee-joint injuries. The objective of our study was to develop the Chinese version of LKS (C-LKS) and assess its reliability, validity and responsiveness in Chinese patients with anterior cruciate ligament (ACL) injuries...
October 19, 2016: BMC Musculoskeletal Disorders
Steven T Hendrix, Austin M Barrett, Bopha Chrea, William H Replogle, Josie M Hydrick, Gene R Barrett
Is there a correlation between increased posterior-inferior tibial slope angle and noncontact anterior cruciate ligament (ACL) injury? Does increasing the posterior-inferior tibial slope angle increase the risk of bilateral ACL injury? A computerized relational database (Access 2007; Microsoft Inc, Redmond, Washington) was used to conduct a retrospective review of patients undergoing bilateral or unilateral ACL reconstruction surgery or treatment by a single surgeon between 1995 and 2013. Included in the study were patients with bilateral and unilateral ACL injuries and patellofemoral pain syndrome with no associated ACL deficiency...
October 18, 2016: Orthopedics
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