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https://www.readbyqxmd.com/read/29661363/the-effect-of-commercial-insurance-policies-on-outcomes-of-venous-ablation
#1
Cassius Iyad Ochoa Chaar, Afsha Aurshina, Yawei Zhang, Fang Wang, Jonathan Cardella, Kristine Orion, Bauer Sumpio, Timur Sarac
OBJECTIVE: The use of venous ablation (VA) for treatment of chronic venous insufficiency has exponentially increased. To limit cost and overuse, insurance companies have adopted aleatory policies. The goal of this study was to compare the policies of five major local insurance carriers and to determine whether treatment within the criteria of a certain policy is associated with improved patient outcomes. METHODS: A retrospective single-center review of patients treated with VA was performed...
May 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29626027/lesson-of-the-month-1-massive-spontaneous-haematomas-in-an-elderly-man
#2
Francesco Fiorini, Louise Braddick, Hasnain Hashim, Robert M Ayto, Alana Jacobs, Yetunde Baoku, Shahir S Hamdulay
A 73-year-old man presented with bilateral leg pain and swelling, and no history of trauma or bleeding disorders. Clinical examination, biochemistry and magnetic resonance imaging of the thighs were suggestive of muscle haematomas. These progressed significantly during the admission, requiring blood transfusion. Normal vascular anatomy on computed tomography, renal and liver function, and absence of infection made a bleeding diathesis more likely. This may be caused by coagulation defects, platelet disorders and vascular fragility...
March 2018: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/29502964/diagnosis-taper-corrosion-when-is-it-the-taper-and-when-is-it-something-else
#3
Craig J Della Valle, Tyler E Calkins, Joshua J Jacobs
There has been an increasing use of modularity at the head-neck junction in total hip arthroplasty to more closely mimic the native anatomy, allowing for optimal leg length and stability. Corrosion at this junction in metal-on-polyethylene bearings can lead to an adverse local tissue reaction (ALTR). This increasingly prevalent condition should be considered in the differential diagnosis of hip pain and difficulty ambulating. A recent symposium by the American Academy of Hip and Knee Surgeons described the diagnosis, etiology, management, and prevention of taper corrosion...
March 1, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29496627/jumping-mechanisms-and-performance-in-beetles-ii-weevils-coleoptera-curculionidae-rhamphini
#4
Konstantin Nadein, Oliver Betz
We describe the kinematics and performance of the natural jump in the weevil Orchestes fagi (Fabricius, 1801) (Coleoptera: Curculionidae) and its jumping apparatus with underlying anatomy and functional morphology. In weevils, jumping is performed by the hind legs and involves the extension of the hind tibia. The principal structural elements of the jumping apparatus are (1) the femoro-tibial joint, (2) the metafemoral extensor tendon, (3) the extensor ligament, (4) the flexor ligament, (5) the tibial flexor sclerite and (6) the extensor and flexor muscles...
February 26, 2018: Arthropod Structure & Development
https://www.readbyqxmd.com/read/29405367/the-influence-of-evolution-on-cam-deformity-and-its-impact-on-biomechanics-of-the-human-hip-joint
#5
REVIEW
Helen Anwander, Martin Beck, Lorenz Büchler
Anatomy and biomechanics of the human hip joint are a consequence of the evolution of permanent bipedal gait. Habitat and behaviour have an impact on hip morphology and significant differences are present even within the same biological family. The forces acting upon the hip joint are mainly a function of gravitation and strength of the muscles. Acetabular and femoral anatomy ensure an inherently stable hip with a wide range of motion. The femoral head in first human ancestors with upright gait was spherical (coxa rotunda)...
February 5, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29376624/investigation-of-non-saphenous-veins-in-c0s-patients
#6
Marzia Lugli, Oscar Maleti, M Letizia Iabichella, Michel Perrin
BACKGROUND: C0S patients have symptoms of chronic venous disorder (CVD), though an anatomical or pathophysiological explanation is lacking. C0 and C1 classified lower limbs can present with valve incompetence from the second to sixth generation of tributaries of saphenous veins despite the absence of a detectable saphenous truncal reflux. We hypothesized that C0S venous symptoms could stem from the second to sixth generation of saphenous tributaries and small veins that are not connected to the saphenous system...
January 26, 2018: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/29362901/reconstructing-an-incomparable-organism-the-chalicothere-in-nineteenth-and-early-twentieth-century-palaeontology
#7
Chris Manias
Palaeontology developed as a field dependent upon comparison. Not only did reconstructing the fragmentary records of fossil organisms and placing them within taxonomic systems and evolutionary lineages require detailed anatomical comparisons with living and fossil animals, but the field also required thinking in terms of behavioural, biological and ecological analogies with modern organisms to understand how prehistoric animals lived and behaved. Yet palaeontological material often worked against making easy linkages, bringing a sense of mystery and doubt...
January 23, 2018: History and Philosophy of the Life Sciences
https://www.readbyqxmd.com/read/29357996/peroneus-brevis-tendon-in-proximal-5th-metatarsal-fractures-anatomical-considerations-for-safe-hook-plate-placement
#8
N Seyidova, L Hirtler, R Windhager, R Schuh, M Willegger
INTRODUCTION: The peroneus brevis tendon (PBT) inserts into the proximal aspect of the 5th metatarsal. Metatarsal bone fractures are encountered to be the most common fractures in the foot with predominantly fractures at the base of the fifth metatarsal bone. Mechanism of injury and treatment of the proximal 5th metatarsal fractures vary due to the complex anatomy and diverse biomechanical properties. The purpose of this study was to analyze the footprint of the PBT with regards to the proximal 5th metatarsal fractures and to define a "safe zone" for hook plate placement...
January 8, 2018: Injury
https://www.readbyqxmd.com/read/29352333/long-term-results-of-custom-cementless-stem-total-hip-arthroplasty-performed-in-hip-fusion
#9
Xavier Flecher, Matthieu Ollivier, Pascal Maman, Sébastien Pesenti, Sébastien Parratte, Jean-Noël Argenson
INTRODUCTION: Due to complex anatomical considerations, results of cementless-stem total hip arthroplasty (THA) in hip fusion remain controversial compared with conventional THA. We therefore aimed to analyse 3D anatomy of the fused hip based on pre-operative computed tomography (CT) scans, functional outcomes based on the Harris Hip Score (HHS) and the Hip Disability and Osteoarthritis Outcome Score (HOOS), modifications of hip anatomy based on post-operative standardised radiography, and determine complication rate and long-term survival based on Kaplan-Meier analysis...
January 19, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29306507/immunogenicity-and-safety-of-a-novel-tetanus-toxoid-conjugated-anti-gastrin-vaccine-in-balb-c-mice
#10
Qing He, Hua Gao, Meng Gao, Shengmei Qi, Kun Yang, Yingqi Zhang, Junzhi Wang
The objective of this study is to determine the immunogenicity and safety of our novel anti-gastrin vaccine that is composed of the common amino-terminal portions of human carboxy-amidated gastrin-17 (G17) and glycine-extended gastrin-17 (gly-G17) as well as the common carboxy-terminal portion of the gastrin precursor progastrin (in a 50:50 mixture) all covalently linked to tetanus toxoid (TT) via peptide spacers. The vaccine, or immunogen, was injected intramuscularly into the legs of BALB/c mice, which produced high serum titres of specific IgG antibodies and IFN-γ in their spleen cells, identifiable by enzyme-linked immunosorbent assay (ELISA) and enzyme-linked immunospot assay (ELISPOT), respectively...
February 1, 2018: Vaccine
https://www.readbyqxmd.com/read/29278836/the-fibularis-digiti-quinti-tendon-a-cadaveric-study-with-anthropological-and-clinical-considerations
#11
Morgan E Chaney, Tung V Dao, Benjamin S Brechtel, Stephanie J Belovich, Kathy J Siesel, John R Fredieu
In addition to the fibularis longus and brevis muscles, a number of anomalous muscles or tendons can arise from the lateral compartment of the leg. The authors describe a bilateral and robust fibularis digiti quinti (FDQ) tendon present in the foot of a 99-year-old female cadaver, present the incidence of this tendon in a cohort of 26 cadavers dissected by podiatric-medical students for a lower-extremity anatomy course, and discuss the anthropological and clinical significance of the findings. In these specimen, the FDQ tendon arose from the fibularis brevis tendon proximal to the lateral malleolus, but did not separate completely from the fibularis brevis tendon until passing through the inferior fibular retinaculum...
December 5, 2017: Foot
https://www.readbyqxmd.com/read/29276458/association-of-venous-leg-ulcers-with-ankle-range-of-motion-in-people-attending-chiropractic-mobile-clinics-in-the-dominican-republic
#12
Patricia A Tavares, Victoria Landsman, Nathalie Gomez, Ariel Ferreiras, Ramon A Lopez
Objective: The goal of the study was to determine if there was an association between chronic venous disorders (CVDs), particularly venous leg ulcers, and ankle range of motion (ROM) in the Dominican Republic. Methods: Chronic venous disorders were classified using the clinical manifestations portion (C) of the CEAP (clinical manifestations, etiology, anatomy, pathophysiology) method. The legs of participants attending mobile chiropractic clinics in rural, low-income areas in the Dominican Republic were assessed for clinical signs of CVD and venous ulcers...
December 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/29275904/the-achilles-tendon-in-healthy-subjects-an-anthropometric-and-ultrasound-mapping-study
#13
Nick N Patel, Sameh A Labib
Ultrasonography is an inexpensive, fast, and reliable imaging technique widely used to assess the Achilles tendon. Although significant data exists regarding pathologic tendon changes, ultrasound data from healthy individuals are more limited. We aimed to better characterize ultrasound Achilles tendon measurements in healthy individuals and identify important correlating factors. The information collected included patient demographics, body habitus, activity level, foot dominance, and resting ankle angle. Ultrasound analysis was performed bilaterally on the Achilles tendons of 50 subjects using a high-frequency transducer to measure tendon width, thickness, cross-sectional area, and length...
March 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29249632/perforator-flaps-from-the-lower-leg-for-intraoral-reconstruction-experience-of-131-flaps
#14
Klaus-Dietrich Wolff, Andrea Rau, Andreas Kolk
BACKGROUND: During the last decade, perforator flaps have become popular for defect cover in the head and neck because they increase the choice of reconstructive possibilities and can lead to minimal donor site morbidity. In particular, the lower leg is considered a suitable option, as it provides thin and pliable skin for intraoral lining. Having gained experience with 131 flaps raised from four different donor sites at the lower leg, the aim of this paper is to evaluate success rates and patient satisfaction, but also difficulties and pitfalls during flap transfer...
February 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29248102/the-center-for-vein-restoration-study-on-presenting-symptoms-treatment-modalities-and-outcomes-in-medicare-eligible-patients-with-chronic-venous-disorders
#15
Peter J Pappas, Sanjiv Lakhanpal, Khanh Q Nguyen, Rohan Vanjara
BACKGROUND: Chronic venous disorders (CVDs) have been estimated to affect up to 20 million Americans. Despite this huge prevalence, the signs, symptoms, and treatment outcomes in patients 65 years of age and older are not well defined. Our goal was to determine the presentation and treatment outcomes in elderly patients compared with a cohort of patients younger than 65 years. METHODS: From January 2015 to December 2016, we retrospectively reviewed prospectively collected data from 38,750 patients with CVD from the Center for Vein Restoration's electronic medical record (NextGen Healthcare Information Systems, Irvine, Calif)...
January 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29246717/comparative-analysis-of-the-reconstruction-of-individual-hip-anatomy-using-3-different-cementless-stem-designs-in-patients-with-primary-hip-osteoarthritis
#16
Moritz M Innmann, Katrin Spier, Marcus R Streit, Peter R Aldinger, Thomas Bruckner, Tobias Gotterbarm, Christian Merle
BACKGROUND: We questioned whether there was a radiographic difference in hip geometry reconstruction and implant fixation between 3 different cementless stem design concepts in patients with primary end-stage hip osteoarthritis. METHODS: We retrospectively evaluated the preoperative and postoperative radiographs by 2 independent and blinded reviewers in a series of 264 consecutive patients who had received either a straight double-tapered stem with 3 offset options (group A), a straight double-tapered stem with 2 shape options and modular necks (group B), and a bone-preserving curved tapered stem with 4 offset options (group C)...
April 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29214516/advances-in-stereotactic-navigation-for-pelvic-surgery
#17
A R Wijsmuller, L G C Romagnolo, V Agnus, C Giraudeau, A G F Melani, B Dallemagne, J Marescaux
BACKGROUND: Stereotactic navigation could improve the quality of surgery for rectal cancer. Critical challenges related to soft tissue stereotactic pelvic navigation include the potential difference in patient anatomy between intraoperative lithotomy and preoperative supine position for imaging. The objective of this study was to determine the difference in patient anatomy, sacral tilt, and skin fiducial position between these different patient positions and to investigate the feasibility and optimal set-up for stereotactic pelvic navigation...
December 6, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29202983/influence-of-tibialis-posterior-muscle-activation-on-foot-anatomy-under-axial-loading-a-biomechanical-ct-human-cadaveric-study
#18
Koen Dullaert, Jennifer E Hagen, Paul Simons, Florian Gras, Boyko Gueorguiev, R Geoff Richards, Kajetan Klos
BACKGROUND: Collapse of the medial longitudinal arch and subluxation of the subtalar joint are common occurrences in adult flatfoot deformity. Controversy exists about the role of the tibialis posterior (TP) tendon as first and/or essential lesion. Subtle changes in the foot configuration can occur under weight bearing. PURPOSE: This human cadaveric study is designed to investigate the effect that isolated actuation of the TP tendon has on the medial longitudinal arch and the hindfoot configuration under simulated weight bearing...
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29138591/anatomical-etiology-of-pseudo-sciatica-from-superior-cluneal-nerve-entrapment-a-laboratory-investigation
#19
Tomoyuki Konno, Yoichi Aota, Hiroshi Kuniya, Tomoyuki Saito, Ning Qu, Shogo Hayashi, Shinichi Kawata, Masahiro Itoh
Objective: The superior cluneal nerve (SCN) may become entrapped where it pierces the thoracolumbar fascia over the iliac crest; this can cause low back pain (LBP) and referred pain radiating into the posterior thigh, calf, and occasionally the foot, producing the condition known as "pseudo-sciatica." Because the SCN was thought to be a cutaneous branch of the lumbar dorsal rami, originating from the dorsal roots of L1-L3, previous anatomical studies failed to explain why SCN causes "pseudo-sciatica"...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29097175/characteristics-of-patients-and-patterns-of-chronic-venous-disease-of-the-lower-limbs-in-a-referral-hospital-in-cameroon
#20
Marcus Fokou, Boniface Moifo, Emmanuel Fongang, Abel Teyang, Wallinjon Muna
OBJECTIVE: The objective of this study was to investigate the magnitude of chronic venous disease (CVD) in sub-Saharan Africa, specifically the characteristics of the patients, the symptoms, the signs, and the severity. METHODS: From December 2013 to December 2016, a cross-sectional study was conducted of all consecutive patients with CVD aged ≥18 years and attending the outpatient clinic of the Yaoundé General Hospital in Cameroon. We recorded information on demographics, relevant medical history, symptoms, lifestyle, and clinical presentation...
January 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
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