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https://www.readbyqxmd.com/read/29933260/complete-talar-extrusion-treated-with-an-antibiotic-cement-spacer-and-staged-femoral-head-allograft
#1
Philip Huang, Mary Elizabeth Lundgren, Rajeev Garapati
Complete talar extrusion is rare and usually associated with a high-energy mechanism of injury causing complete dissociation of the talus from the surrounding bony and soft-tissue structures with enough force to expel the talus out of the body. Treatment can be complicated by infection, osteonecrosis, posttraumatic osteoarthritis, and leg length discrepancy, which may require multiple subsequent surgeries for improved outcome and quality of life. Reimplantation of the native talus affords maintenance of joint height and favorable outcomes have been reported...
June 21, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29932009/prevalence-of-femoroacetabular-impingement-and-effect-of-training-frequency-on-aetiology-in-paediatric-football-players
#2
Gökhan Polat, Ufuk Arzu, Engin Dinç, Bülent Bayraktar
PURPOSE: The aim of this study was to determine the prevalence of asymptomatic radiographic findings of femoroacetabular impingement (FAI) in paediatric football players in different age groups and to investigate aetiological factors. METHODS: Paediatric male athletes between 10 and 17 years of age from 8 soccer teams were recruited. In addition to an annual control check-up, anteroposterior pelvis and frog-leg radiographs as well as the curriculum vitae of the athletes, their injuries, and real-time complaints were recorded...
June 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29929767/an-unclassified-tibial-plateau-fracture-reverse-schatzker-type-iv
#3
Tien Yeoh, Efthymios Iliopoulos, Alex Trompeter
The most commonly accepted system of classification for tibia plateau fractures is that of Schatzker. Increasingly, both high energy injuries and atypical osteoporotic fragility failures have led to more complex, unusual and previously undescribed fracture patterns being recognized. We present a case of a patient with a previously unreported pattern of tibia plateau fracture and knee dislocation. We highlight the challenges confronted and present the management and the outcomes of his injury. A 28-year old male motorcyclist was involved in a head on collision with a truck and was transferred by helicopter to our level 1 major trauma centre emergency department...
May 24, 2018: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29928561/the-leg-wound-of-king-philip-ii-of-macedonia
#4
Nicholas Brandmeir, Russell Payne, Elias Rizk, R Shane Tubbs, Juan Luis Arsuaga, Antonis Bartsiokas
Objective King Philip II, the father of Alexander the Great, suffered a penetrating wound to the leg from a spear that left him severely handicapped. His skeletal remains represent the first and only case of an injury from ancient Greece that can be directly compared to its historical record. The objective of the study was to confirm the identity of the male occupant of Royal Tomb I in Vergina, Greece as Philip II of Macedonia by providing new evidence based on anatomical dissection and correlation with the historical description of the wounds...
April 18, 2018: Curēus
https://www.readbyqxmd.com/read/29928078/distal-major-pedicle-of-sartorius-muscle-flap-anatomical-study-and-its-clinical-implications
#5
K N Manjunath, M S Venkatesh, Ashwini Shivaprasad
Background: Reconstruction of the popliteal region has limited option in terms of muscle flaps or myocutaneous flaps. Gastrocnemius muscle or the myocutaneous flaps are the option for majority of cases. However, reach of Gastrocnemius is limited if the wound is on the distal one-third thigh or the lateral aspect of knee region. Similarly, if the wound injures the muscle, then coverage becomes all the more difficult. Although inferiorly based fasciocutaneous flaps can cover the wound in case of bony injuries, muscle flaps are beneficial as they help in fracture healing...
January 2018: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/29927640/does-anterior-cruciate-ligament-reconstruction-improve-functional-and-radiographic-outcomes-over-nonoperative-management-5-years-after-injury
#6
Elizabeth Wellsandt, Matthew J Failla, Michael J Axe, Lynn Snyder-Mackler
BACKGROUND: Current practice patterns for the management of anterior cruciate ligament (ACL) injury favor surgical reconstruction. However, long-term outcomes may not differ between patients completing operative and nonoperative treatment of ACL injury. Differences in outcomes between operative and nonoperative treatment of patients in the United States is largely unknown, as are outcomes in long-term strength and performance measures. PURPOSE: To determine if differences exist in 5-year functional and radiographic outcomes between patients completing operative and nonoperative treatment of ACL injury when both groups complete a progressive criterion-based rehabilitation protocol...
June 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29922375/changes-in-injury-risk-mechanisms-after-soccer-specific-fatigue-in-male-youth-soccer-players
#7
Michal Lehnert, Mark De Ste Croix, Zuzana Xaverova, Michal Botek, Renata Varekova, Amr Zaatar, Ondrej Lastovicka, Petr Stastny
The aim of this study was to examine the acute effects of soccer specific fatigue on muscular and neuromuscular function in male youth soccer players. Elite soccer players (n = 20; age 15.7 ± 0.5 y; body height 177.75 ± 6.61 cm; body mass 67.28 ± 8.29 kg) were measured before and after soccer specific exercise (SAFT90 ). The reactive strength index (RSI) was determined by a drop jump test, leg stiffness (LS) by a 20 sub-maximal two-legged hopping test, and a functional hamstring to quadriceps strength ratio from isokinetic concentric and eccentric strength of the dominant and non-dominant leg (measured at angular velocities of 1...
June 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29914830/clinical-factors-that-influence-the-cellular-responses-of-saphenous-veins-used-for-arterial-bypass
#8
Michael Sobel, Shinsuke Kikuchi, Lihua Chen, Gale L Tang, Tom N Wight, Richard D Kenagy
OBJECTIVE: When an autogenous vein is harvested and used for arterial bypass, it suffers physical and biologic injuries that may set in motion the cellular processes that lead to wall thickening, fibrosis, stenosis, and ultimately graft failure. Whereas the injurious effects of surgical preparation of the vein conduit have been extensively studied, little is known about the influence of the clinical environment of the donor leg from which the vein is obtained. METHODS: We studied the cellular responses of fresh saphenous vein samples obtained before implantation in 46 patients undergoing elective lower extremity bypass surgery...
June 15, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29913880/central-origin-of-pinprick-hyperalgesia-adjacent-to-an-uv-b-induced-inflammatory-skin-pain-model-in-healthy-volunteers
#9
Bernhard Rössler, Anna Paul, Maria Schuch, Martin Schulz, Thomas Sycha, Burkhard Gustorff
Background and purpose The UV-B model is an established pain model of different types of hyperalgesia in animal and human pain research. Beside the skin region of the sunburn in human volunteers pinprick hyperalgesia has been described in a large zone of non-inflamed skin adjacent to the sunburn. However, there are opposing results on the existence of pinprick hyperalgesia and most notably a controversial discussion is still on-going whether this mechanical hyperalgesia in the undamaged tissue adjacent to and at some distance from the site of inflammation is of peripheral or central origin...
December 29, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/29913860/treatment-with-topical-capsaicin-experience-from-a-pain-clinic
#10
Marianne Rørbæk, Lise Ventzel, Hanne Gottrup
Background Neuropathic pain is usually treated with antidepressants and anticonvulsant. The use of systemic treatment is, however, limited due to poor tolerability and low efficacy. Qutenza, a topical capsaicin patch (8%), is a relatively new treatment for patients with peripheral neuropathic pain (PNP) conditions. The indication for using topical capsaicin treatment is peripheral neuropathic pain in patients without diabetes. Aim To describe the use of topical capsaicin treatment in a pain clinic in patients with PNP...
December 29, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/29910710/supplemental-stimulation-improves-swing-phase-kinematics-during-exoskeleton-assisted-gait-of-sci-subjects-with-severe-muscle-spasticity
#11
Andrew Ekelem, Michael Goldfarb
Spasticity is a common comorbidity associated with spinal cord injury (SCI). Robotic exoskeletons have recently emerged to facilitate legged mobility in people with motor complete SCI. Involuntary muscle activity attributed to spasticity, however, can prevent such individuals from using an exoskeleton. Specifically, although most exoskeleton technologies can accommodate low to moderate spasticity, the presence of moderate to severe spasticity can significantly impair gait kinematics when using an exoskeleton...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29910339/analysis-of-the-relationship-between-elite-wrestlers-leg-strength-and-balance-performance-and-injury-history
#12
Sezen Çimen Polat, Celal Bulgay, İmdat Yarım, Halil İbrahim Cicioğlu, Ebru Çetin
The purpose of this study is to examine the correlation between leg power and balance performance in elite wrestlers and injury history. In the research group, there are 18 elite freestyle male wrestlers at the ages of 24.27 ± 3.18 years, with a height of 171.86 ± 5.44 cm and a body weight of 79.27 ± 11.16 kg. Information on the injury history of the athletes’ upper legs for the past year was collected via interviews with the club’s physiotherapist. Laboratory tests to measure performance assessed height, body weight, Y balance and isokinetic leg strength...
April 17, 2018: Sports
https://www.readbyqxmd.com/read/29908799/measurement-of-dairy-calf-behavior-prior-to-onset-of-clinical-disease-and-in-response-to-disbudding-using-automated-calf-feeders-and-accelerometers
#13
M A Sutherland, G L Lowe, F J Huddart, J R Waas, M Stewart
We determined if feeding and lying behavior, recorded by automatic calf feeding systems (ACFS) and accelerometers, could be used to detect changes in behavior before onset of neonatal calf diarrhea (NCD) or in response to disbudding pain in dairy calves. At 4 d of age, 112 calves had accelerometers attached to their hind leg and were housed in pens with ACFS. Calves were examined daily for signs of illness or injury. Of the 112 calves monitored, 18 were diagnosed with NCD; activities of calves with NCD were then compared with those of 18 healthy controls (calves that had no symptoms of NCD, other illnesses, or injury)...
June 13, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29908655/analysis-of-surface-to-surface-distance-mapping-during-three-dimensional-motion-at-the-ankle-and-subtalar-joints
#14
Sorin Siegler, Tobias Konow, Claudio Belvedere, Andrea Ensini, Rewati Kulkarni, Alberto Leardini
Joint surface interaction and ligament constraints determine the kinematic characteristics of the ankle and subtalar joints. Joint surface interaction is characterized by joint contact mechanics and by relative joint surface position potentially characterized by distance mapping. While ankle contact mechanics was investigated, limited information is available on joint distance mapping and its changes during motion. The purpose of this study was to use image-based distance mapping to quantify this interaction at the ankle and subtalar joints during tri-planar rotations of the ankle complex...
June 7, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29907353/determinants-of-skeletal-muscle-protein-turnover-following-severe-burn-trauma-in-children
#15
Ioannis Malagaris, David N Herndon, Efstathia Polychronopoulou, Victoria G Rontoyanni, Clark R Andersen, Oscar E Suman, Craig Porter, Labros S Sidossis
BACKGROUND & AIMS: Burns remain the fifth cause of non-fatal pediatric injuries globally, with muscle cachexia being a hallmark of the stress response to burns. Burn-induced muscle wasting is associated with morbidity, yet the determinants of muscle protein catabolism in response to burn trauma remains unclear. Our objective was to determine the effect of patient and injury characteristics on muscle protein kinetics in burn patients. METHODS: This retrospective, observational study was performed using protein kinetic data from pediatric patients who had severe burns (>30% of the total body surface area burned) and underwent cross-limb stable isotope infusions between 1999 and 2008 as part of prospective clinical trials...
June 4, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29905105/design-and-use-of-a-3d-prosthetic-leg-in-a-red-lored-amazon-parrot-amazona-autumnalis
#16
Cecilia Galicia, Vanessa Hernandez Urraca, Luis Del Castillo, Jaime Samour Mvz
A three-dimensional (3D) prosthesis was designed and built for a red-lored Amazon parrot ( Amazona autumnalis) with a pre-existing amputation of the distal left leg at the tibiotarsal-tarsometatarsal joint and injuries to the right leg caused by cage companion aggression. The prosthesis consisted of a straight main imprint, with a round element at both ends to provide stability, and a bridge connecting this to a socket without a bottom where the stump could be accommodated and held securely with self-adhesive bandaging...
June 2018: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29902807/a-biomechanical-comparison-of-single-leg-landing-and-unplanned-sidestepping
#17
Chamnan Chinnasee, Gillian Weir, Siriporn Sasimontonkul, Jacqueline Alderson, Cyril Donnelly
Unplanned sidestepping and single-leg landing have both been used to screen athletes for injury risk in sport. The aim of this study was to directly compare the lower limb mechanics of three single-leg landing tasks and an unplanned sidestepping task. Thirteen elite female team sport athletes completed a series of non-contact single-leg drop landings, single-leg countermovement jumps, single-leg jump landings and unplanned sidestepping in a randomized counterbalanced design. Three dimensional kinematics (250 Hz) and ground reaction force (2,000 Hz) data with a participant specific lower limb skeletal model were used to calculate and compare hip, knee and ankle joint kinematics, peak joint moments, instantaneous joint power and joint work during the weight acceptance phase of each sporting task (α=0...
June 14, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29900181/use-of-posterior-hamstring-harvest-during-anterior-cruciate-ligament-reconstruction-in-the-pediatric-and-adolescent-population
#18
Krishn Khanna, Abhinav Janghala, Nirav K Pandya
Background: Posterior hamstring harvest has been described in the adult population in a limited fashion, but no study is available describing the use of posterior hamstring harvest in an active pediatric and adolescent cohort. At times, surgeons may be faced with a challenging anterior harvest due to patient anatomic characteristics, particularly the anatomic features and size of the pes tendons. Clinicians need to have multiple harvest approaches at their disposal. Complications with hamstring harvest such as premature graft transection are more problematic in this population due to higher failure rates with allograft tissue...
June 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29897784/passive-hip-range-of-motion-values-across-sex-and-sport
#19
Jennifer A Hogg, Randy J Schmitz, Anh-Dung Nguyen, Sandra J Shultz
CONTEXT:   Greater passive hip range of motion (ROM) has been associated with greater dynamic knee valgus and thus the potential for increased risk of anterior cruciate ligament injuries. Normative data for passive hip ROM by sex are lacking. OBJECTIVE:   To establish and compare passive hip ROM values by sex and sport and to quantify side-to-side differences in internal-rotation ROM (ROMIR ), external-rotation ROM (ROMER ), and total ROM (ROMTOT ). DESIGN:   Cross-sectional study...
June 13, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29897448/understanding-the-agility-of-running-birds-sensorimotor-and-mechanical-factors-in-avian-bipedal-locomotion
#20
Monica A Daley
Birds are a diverse and agile lineage of vertebrates that all use bipedal locomotion for at least part of their life. Thus birds provide a valuable opportunity to investigate how biomechanics and sensorimotor control are integrated for agile bipedal locomotion. This review summarizes recent work using terrain perturbations to reveal neuromechanical control strategies used by ground birds to achieve robust, stable and agile running. Early experiments in running guinea fowl aimed to reveal the immediate intrinsic mechanical response to an unexpected drop ('pothole') in terrain...
June 12, 2018: Integrative and Comparative Biology
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