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https://www.readbyqxmd.com/read/28647781/computer-navigation-assisted-surgery-for-musculoskeletal-tumors-a-closer-look-into-the-learning-curve
#1
Kevin Staats, Joannis Panotopoulos, Thomas M Tiefenboeck, Reinhard Windhager, Philipp T Funovics
BACKGROUND: Computer navigation-assisted surgery for musculoskeletal tumors has shown to reduce the risk of intra-lesional margins in resection. Experiences with this method are still limited to smaller case series. METHOD: We reviewed our first experiences in 24 patients in whom computer navigation-assisted surgery had been performed. In 7 of these patients (6 male and 1 female), this has influenced the surgical treatment plan and navigation was used for both tumor resection and reconstruction...
June 24, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28646647/successful-maintenance-of-key-physiological-parameters-in-preterm-lambs-treated-with-ex%C3%A2-vivo-uterine-environment-therapy-for-a-period-of-1-week
#2
Haruo Usuda, Shimpei Watanabe, Yuichiro Miura, Masatoshi Saito, Gabrielle C Musk, Judith Rittenschober-Böhm, Hideyuki Ikeda, Shinichi Sato, Takushi Hanita, Tadashi Matsuda, Alan H Jobe, John P Newnham, Sarah J Stock, Matthew W Kemp
BACKGROUND: Extremely preterm infants born at the border of viability (22-24 weeks' gestation) have high rates of death and lasting disability. Ex vivo uterine environment therapy is an experimental neonatal intensive care strategy that provides gas exchange using parallel membranous oxygenators connected to the umbilical vessels, sparing the extremely preterm cardiopulmonary system from ventilation-derived injury. OBJECTIVE: In this study, we aimed to refine our ex vivo uterine environment therapy platform to eliminate fetal infection and inflammation, while simultaneously extending the duration of hemodynamically stable ex vivo uterine environment therapy to 1 week...
June 20, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28646420/composite-reverse-shoulder-arthroplasty-can-provide-good-function-and-quality-of-life-in-cases-of-malignant-tumour-of-the-proximal-humerus
#3
Cyril Lazerges, Louis Dagneaux, Benjamin Degeorge, Nicolas Tardy, Bertrand Coulet, Michel Chammas
PURPOSE: Management of proximal humeral tumours remains a surgical challenge. No study to date has assessed the quality of life scores following the composite reverse shoulder arthroplasty for this indication. We, therefore, evaluated function and quality of life following reconstruction with allograft for malignant tumour of the humerus. METHODS: A series of six cases of humeral tumour treated by a single surgeon in a single centre was reviewed after a mean follow-up of 5...
June 23, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28645676/a-journey-through-growth-plates-tracking-differences-in-morphology-and-regulation-between-the-spine-and-long-bones-in-a-pig-model
#4
Adalbert Raimann, Alireza Javanmardi, Monika Egerbacher, Gabriele Haeusler
BACKGROUND CONTEXT: The process of linear growth is driven by axial elongation of both long bones and vertebral bodies and accomplished by enchondral ossification. Differences in regulation between the two skeletal sites are mirrored clinically by the age course in body proportions. Whereas growth plates in long bones can easily be discriminated, vertebral growth plates are part of the cartilaginous endplate, which typically shows important species differences. PURPOSE: To describe and compare histological, histomorphometric and regulatory characteristics in the growth plates of the spine and long bones in a porcine model...
June 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28644936/the-deltoid-lift-a-comparison-study-of-exposure-area-in-proximal-humeral-approaches
#5
Michael Ting, Nicholas Kusnezov, John Dunn, Alok K Dwivedi, Miguel A Pirela-Cruz
BACKGROUND: Adequate exposure of the proximal humerus is necessary to address atypical or complex proximal humerus fractures and orthopedic tumors. Surgical management may be difficult through existing approaches due to their limited nature and the delicate neurovascular anatomy of the shoulder. The deltoid lift, a previously described extensile approach, can be incorporated into the surgeon's armamentarium as an alternative exposure to the proximal humerus. The objective of this study was to quantify and compare the humeral exposure achieved through the deltoid lift with the standard direct lateral deltoid-splitting, anterolateral acromial, and deltopectoral approaches in terms of surface area and exposure of key anatomic landmarks...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28644121/intercondylar-fractures-of-the-distal-humerus-in-patients-younger-than-20-years-capsulectomy-results
#6
W Andrew Eglseder, Ebrahim Paryavi
Few reports in the literature have been dedicated to young patients with distal fractures of the humerus, and few have addressed subsequent indications to improve range of motion (ROM). This article is a retrospective review of the elbow flexion-extension ROM in 31 patients (age, 12-19 years) who had been treated with open reduction and internal fixation of intercondylar fractures of the distal humerus at a level I trauma center from 1991 through 2013. The ROM of patients who underwent capsulectomy was compared with that of those who did not...
2017: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/28644117/reverse-total-shoulder-arthroplasty-for-complex-three-and-four-part-proximal-humerus-fractures-in-elderly-patients-a-review
#7
George F Lebus V, Hassan R Mir, Brandon D Bushnell
Complex proximal humerus fractures in elderly patients represent a difficult problem for orthopaedic surgeons. Classically, treatment methods have included nonoperative management, open reduction and internal fixation, and hemiarthroplasty. Outcomes of nonoperative management for these complex fractures have been poor, and results of traditional operative techniques are variable at best. Over the past several years, reverse total shoulder arthroplasty (RTSA) has been increasingly employed in these injuries with encouraging results...
2017: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/28644077/leiomyosarcoma-of-the-wing-in-a-vieilott-s-fireback-pheasant-lophura-rufa
#8
Martín A Zordan, Michael M Garner, Rebecca Smedley, Dana Neelis, Carlos R Sánchez
A 15-year-old, female Vieilott's fireback pheasant (Lophura rufa) presented with a 2-day history of a drooping right wing. Examination revealed severe soft tissue swelling in the area extending from the right shoulder to the humeral-radio-ulnar joint with associated bruising and feather loss. Results of a complete blood cell count revealed marked heterophilia and lymphocytosis, and results of serum biochemical analysis showed severe increases in creatine kinase and aspartate aminotransferase activities, hypoproteinemia, and hypoalbuminemia...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28642857/healthcare-costs-of-osteoporotic-fracture-in-korea-information-from-the-national-health-insurance-claims-database-2008-2011
#9
Ha Young Kim, Yong-Chan Ha, Tae-Young Kim, Hyemin Cho, Young-Kyun Lee, Ji-Yeon Baek, Sunmee Jang
BACKGROUND: The present study estimated healthcare costs of osteoporotic fractures including spine, hip, distal radius and humerus in Koreans over 50 years of age using national claims data. METHODS: Korea National Health Insurance data between 2008 and 2011 was searched for all claims records of outpatient visits or hospital admissions of patients ≥50-year-of-age. Osteoporosis-related fractures were identified using certain the International Classification of Diseases, Tenth Revision codes and site-specific physician claims for procedures in a patient age cut-off value of 50 years...
May 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28641734/acute-proximal-humeral-fractures-in-adults
#10
Véronique Lowry, Nathalie J Bureau, François Desmeules, Jean-Sébastien Roy, Dominique M Rouleau
STUDY DESIGN: Clinical commentary. INTRODUCTION: Proximal humeral fractures (PHF) are the third most common fracture in the elderly with an increased incidence expected in the coming years with the aging population, causing an important burden to the healthcare system. The management of PHF is challenging due to its complexity and the wide variety of fractures and treatment options. PURPOSE: The objective of this clinical commentary is to update the available evidence on clinical presentation, classification, imaging, medical treatment, and rehabilitation of acute PHF...
April 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28640089/functional-outcomes-of-gartland-iii-supracondylar-humerus-fractures-with-early-neurovascular-complications-in-children-a-retrospective-observational-study
#11
Sung Il Wang, Tae Young Kwon, Hong Pil Hwang, Jung Ryul Kim
This was a retrospective observational study. The aim of this study was to evaluate functional outcomes in children treated for Gartland III supracondylar humerus (SCH) fracture with neurovascular (NV) injuries using validated outcome measures. A secondary goal was to determine whether clinical parameters such as age at injury, sex, weight, fracture site, and/or direction of displacement could predict NV injury at the time of fracture or long-term functional outcomes in these patients.One hundred fifty-four patients of Gartland III SCH fractures between March 2004 and May 2013 were studied retrospectively...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639560/mechanical-properties-of-decellularized-extracellular-matrix-coated-with-ticapcon-film
#12
I V Sukhorukova, A N Sheveyko, K L Firestein, Ph V Kiryukhantsev-Korneev, D Golberg, D V Shtansky
For the first time the surface of decellularized extracellular matrix (DECM) was modified via deposition of a multicomponent bioactive nanostructured film for improvement of the DECM's mechanical properties. TiCaPCON films were deposited onto the surface of intact and decellularized ulna, radius, and humerus bones by magnetron sputtering of TiC0.5 + 10%Ca3(PO4)2 and Ti targets in a gaseous mixture of Ar + N2. The film structure was studied using x-ray diffraction, scanning and transmission electron microscopy, and Raman spectroscopy...
June 22, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28637998/reinvestigation-of-the-morphological-characteristics-of-the-lateral-ulnar-collateral-ligament-in-humans
#13
Karen Tokunaga, Kotaro Sato, Goro Tajima, Jun Yan, Yoshikuni Mimata, Katsumi Tajima, Yuki Kikuchi, Minoru Doita
To clarify the cause of posterolateral rotatory instability after damage to the lateral ulnar collateral ligament (LUCL), the morphological characteristics of the LUCL were reinvestigated and three-dimensional (3D) image of the ligament was reconstructed using 35 human elbows. The results were as follows: 1) the insertion point of the LUCL on the humerus was almost at the center of the capitellum, and its width was 2.61 ± 1.02 mm. The insertion point of the LUCL on the ulna was located from the lesser sigmoid notch to the supinator crest and had a width of 9...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28636054/guidelines-for-surgical-approaches-for-minimally-invasive-plate-osteosynthesis-in-cats
#14
Philipp A Schmierer, Antonio Pozzi
OBJECTIVES: Minimally invasive plate osteosynthesis (MIPO) is one of the most recent fixation techniques that embody the concept of biological osteosynthesis. Several studies evaluating MIPO in dogs have been published in the recent years. However, there are few clinical reports of MIPO in cats and no description of the surgical approaches. The purpose of our study was to describe the safe corridors for plate insertion in cats using the MIPO technique. METHODS: The surgical approaches for the humerus, radius-ulna, femur and tibia were developed after reviewing the described techniques and surgical approaches for MIPO in dogs, while considering any relevant anatomical difference between dogs and cats...
June 21, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28634923/osteoblastoma-of-the-elbow-analysis-of-13-patients-and-literature-review
#15
Andrea Angelini, Andrès Felipe Varela-Osorio, Giulia Trovarelli, Antonio Berizzi, Gabriele Zanotti, Pietro Ruggieri
PURPOSE: To analyze the clinical and radiographic characteristics, treatment, and outcome of patients with elbow osteoblastoma. PATIENTS AND METHODS: We present 13 patients (7 males and 6 females; mean age, 28 years) diagnosed and treated for an elbow osteoblastoma from 1975 to 2012. Mean follow-up was 29 months (range 12-60 months). Clinical presentation, imaging, surgical treatment, complications, range of elbow motion, and functional outcome were evaluated...
June 20, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28632057/rotation-sequence-to-report-humerothoracic-kinematics-during-3d-motion-involving-large-horizontal-component-application-to-the-tennis-forehand-drive
#16
Thomas Creveaux, Violaine Sevrez, Raphaël Dumas, Laurence Chèze, Isabelle Rogowski
The aim of this study was to examine the respective aptitudes of three rotation sequences (YtXf'Yh'', ZtXf'Yh'', and XtZf'Yh'') to effectively describe the orientation of the humerus relative to the thorax during a movement involving a large horizontal abduction/adduction component: the tennis forehand drive. An optoelectronic system was used to record the movements of eight elite male players, each performing ten forehand drives. The occurrences of gimbal lock, phase angle discontinuity and incoherency in the time course of the three angles defining humerothoracic rotation were examined for each rotation sequence...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28631395/a-univariate-approach-to-sex-estimation-for-the-fragmentary-upper-limb
#17
Rosanne Bongiovanni, Carrie B LeGarde
Although there are numerous reliable multivariate models for sex estimation, many scenarios, both forensic and archaeological, result in the recovery of fragmentary remains, which prevents the collection of various standard measurements. The purpose of this research was to establish metric applications for sex estimation from the distal humerus and distal radius of European/American Whites and American Blacks. Data for this research were retrieved from a sample consisting of a larger database from multiple skeletal collections...
June 20, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28630853/mega-tumour-chondrosarcoma-of-humerus-an-insanely-large-tumor-and-its-social-implications
#18
Rakesh Sharma, Harminder Singh Sohal, Neeraj Malhotra
INTRODUCTION: Large size bone tumors are rare as patients present quite early. The current article reports a large chondrosarcoma removed from left humerus. The rarity of such large size tumors is focus of the report. CASE REPORT: Forty year old male presented with a huge mass in this left arm. The same patient apparently was admitted three years back for excision of the arm swelling which was relatively small that time. However the patient did not undergo surgery and was takin treatment from local bone setters during the last three years and tumor grew to a larger size during this period...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28630838/a-case-report-of-an-unusual-case-of-tuberculous-osteomyelitis-causing-spontaneous-pathological-fracture-of-humerus-in-a-middle-aged-female
#19
Umesh Birole, Ashish Ranade, Mahesh Mone
INTRODUCTION: Tuberculosis is a major health problem worldwide. Extrapulmonary tuberculosis is often secondary to some primary foci in lungs. There are reports of tuberculous osteomyelitis involving maxilla, ulna, femur, and shoulder joint but none have reported pathological fracture in humeral diaphysis due to tuberculosis osteomyelitis without shoulder joint involvement. We report a case of pathological fracture of humerus diaphysis due to tuberculous osteomyelitis with normal articular space...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28630830/bilateral-humerus-and-right-femur-fracture-in-a-newborn-after-cesarean-section-for-breech-presentation-in-a-twin-pregnancy-a-very-rare-case-report
#20
P Rahul, Amit Rakesh Grover, S M Ajoy
INTRODUCTION: The most common fractures during vaginal delivery occur in the clavicle, humerus, and femur. Cesarean section reduces the chances of a child having a birth injury. However, in some difficult extractions, long bone fractures may occur. Cesarean section further reduces the incidence of birth injuries, especially in a breech delivery. Maneuvers employed during cesarean section, energetic traction, improper uterine incisions, and contracted uterus may cause these injuries. In the medical literature, there are few articles highlighting the occurrence of long bone fractures during cesarean section...
January 2017: Journal of Orthopaedic Case Reports
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