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https://www.readbyqxmd.com/read/29846214/the-soleus-muscle-flap-an-overview-of-its-clinical-applications-for-lower-extremity-reconstruction
#1
Ping Song, Lee L Q Pu
Lower extremity reconstruction often poses several challenges for the reconstructive surgeon. Because of limited local tissue options, patients who sustain extensive middle to distal third tibia fractures used to be at higher risk of limb loss without adequate soft tissue coverage. The traditional principle of reconstructing middle and distal third leg wounds with free tissue transfer is being challenged by advances in understanding of local muscle flap anatomy and surgical techniques to improve the efficacy of local flaps...
May 24, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29807792/patient-specific-simulated-dynamics-after-total-knee-arthroplasty-correlate-with-patient-reported-outcomes
#2
Joshua G Twiggs, Edgar A Wakelin, Justin P Roe, David M Dickison, Brett A Fritsch, Brad P Miles, Andrew J Ruys
BACKGROUND: Component alignment variation following total knee arthroplasty (TKA) does not fully explain the instance of long-term postoperative pain. Joint dynamics following TKA vary with component alignment and patient-specific musculoskeletal anatomy. Computational simulations allow joint dynamics outcomes to be studied across populations. This study aims to determine if simulated postoperative TKA joint dynamics correlate with patient-reported outcomes. METHODS: Landmarking and 3D registration of implants was performed on 96 segmented postoperative computed tomography scans of TKAs...
April 30, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29788685/the-lateral-intercostal-artery-perforator-as-an-alternative-donor-vessel-for-free-vascularized-lymph-node-transplantation
#3
Min-Seok Daniel Kwak, Hans-Guenther Machens
Chronic lymphedema is caused by an impairment of the lymphatic system due to primary or secondary causes. Vascularized lymph node transplantation (VLNT) is currently the most promising and frequently used technique besides lymphaticovenous anastomosis. However, the vessel anatomy in the lateral thoracic region is sometimes quite variable. Based on our experiences with vascular anatomical inconstancy in the lateral thoracic region, we planned a lateral intercostal artery perforator flap for VLNT in a female patient with chronic stage II lymphedema of both legs after cervical cancer treatment...
May 2018: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29721458/tripled-semitendinosus-with-single-harvesting-is-as-effective-but-less-invasive-compared-to-standard-gracilis-semitendinosus-harvesting
#4
Luca Drocco, Daniele Camazzola, Riccardo Ferracini, Sebastien Lustig, Laura Ravera, Eugenio Graziano, Alessandro Massè, Alessandro Bistolfi
Introduction: The anterior cruciate ligament (ACL) reconstruction with pes anserinus tendons has been increasingly used throughout the last years. Although less invasive compared to other autologous grafts, a reduction of internal rotation and flexion strength after gracilis and semitendinosus harvesting has been reported. Harvesting one tendon instead of two from the pes anserinus can reduce the deficit of the knee flexor strength and improve the functional recover without weakening the reconstructed ligament...
October 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/29698066/a-novel-technique-for-extracapsular-repair-of-the-intertarsal-joint-in-a-duck
#5
Hamish R Baron, David N Phalen, Mikel Sabater Gonzalez
The intertarsal joint is a synovial roll-and-glide joint. Ligament damage and luxations of this joint are often the result of traumatic injury or growth deformities and result in significant functional impairment. A 9-month-old female Pekin duck ( Anas platyrhynchos domesticus) was examined because of progressive, nonweight-bearing lameness of the left leg. Moderate effusive swelling was present at the level of the left intertarsal joint, without radiographic evidence of bone involvement. The duck failed to respond to nonsteroidal anti-inflammatory medications and analgesia and was diagnosed with rupture of the medial collateral ligament...
March 2018: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29690033/a-new-humicolous-parhydraena-d-orchymont-1937-from-south-africa-coleoptera-hydraenidae
#6
David T Bilton
Parhydraena d'Orchymont, 1937 currently includes 19 species, 17 of which are endemic to South Africa (Perkins 2009; Bilton 2014). Most species of the genus are fully aquatic, but a few, together with members of other genera of Parhydraenini, occupy moist habitats rich in organic debris (Perkins 2009). These so-called humicolous habitats (Perkins Balfour-Browne 1994) occur both beside water and elsewhere, and have been colonised a number of times by primarily aquatic hydraenid lineages, particularly in Africa and Australasia (e...
February 7, 2018: Zootaxa
https://www.readbyqxmd.com/read/29661363/the-effect-of-commercial-insurance-policies-on-outcomes-of-venous-ablation
#7
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
#8
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
#9
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
#10
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...
March 2018: Arthropod Structure & Development
https://www.readbyqxmd.com/read/29405367/influence-of-evolution-on-cam-deformity-and-its-impact-on-biomechanics-of-the-human-hip-joint
#11
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
#12
Marzia Lugli, Oscar Maleti, M Letizia Iabichella, Michel Perrin
BACKGROUND: C0S patients have symptoms of chronic venous disorders (CVDs), 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...
April 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
#13
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
#14
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...
March 2018: Injury
https://www.readbyqxmd.com/read/29352333/long-term-results-of-custom-cementless-stem-total-hip-arthroplasty-performed-in-hip-fusion
#15
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...
June 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
#16
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
#17
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...
March 2018: 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
#18
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
#19
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
#20
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
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