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https://www.readbyqxmd.com/read/29349981/-clinical-results-in-early-and-mid-term-of-using-the-s-rom-femoral-stem-in-revision
#1
Shang Piao, Yong-Gang Zhou, Yin-Qiao Du, Hai-Yang Ma, Jing-Yang Sun, Zhi-Sen Gao, Ya-Wen Peng, Wen-Ming Wu
OBJECTIVE: To investigate and the clinical effect of S-ROM modular stem in femur reconstruction in hip revision arthroplasty. METHODS: From January 2008 to January 2016, 21 patients received revision hip arthroplasties using S-ROM stems. There were 5 males and 16 females with an average of 48.33 years old(range, 29 to 73 years old). There were 13 cases caused by aseptic loosening, 4 cases by infection, 2 cases by nonunion of sub-tuberosity osteotomy, 1 case for repeated dislocation, 1 case for traumatic great trochanter fracture...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349052/malar-relocation-with-reverse-l-osteotomy-and-autogenous-bone-graft
#2
Se Hoon Yoon, Euicheol Jeong, Jee Hyeok Chung
The zygomaticomaxillary complex (ZMC) functions as a buttress for the face and is the cornerstone to a person's aesthetic appearance, by both setting the midfacial width and providing prominence to the cheek. Malar deficiency is often acquired by blunt injury incurred in a traumatic accident, resulting in ZMC fracture. A 48-year-old male patient presented a right ZMC fracture after contusion injury by a baseball. He only received conservative management and later he suffered discomfort during mouth opening at the moment of mastication, due to trismus involving the temporomandibular joint...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29342067/there-is-no-column-a-new-classification-for-acetabular-fractures
#3
Amir Herman, Shay Tenenbaum, Vladislav Ougortsin, Nachshon Shazar
BACKGROUND: The surgical treatment of acetabular fractures relies on the understanding of fracture architecture and their classification. The Judet and Letournel classification has been the cornerstone in understanding and treating acetabular fractures. Recently, there has been growing evidence of discrepancies and incompleteness in the Judet and Letournel classification, adversely affecting its clinical use. This study describes a novel comprehensive classification system that will direct surgical approach and fixation methods...
January 17, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29330991/diaphyseal-nutrient-foramina-in-dried-human-adult-long-bones-of-lower-limb-in-pakistan
#4
Ejaz Afzal, Fatima Sherin, Omair Khan, Noaman Hussain Siddiqui
BACKGROUND: osteogenesis needs circulation of blood in the bones. Bone growth, repair of fracture, maintenance of bone vitality and other injures also need blood circulation in proper way. Blood is allowed to flow via holes in the diaphysis, which are called as nutrient foramina. METHODS: The crosssectional study was done in the department of Anatomy, Ayub and Khyber Medical College (Osteology Sections). The aim was to observe diaphyseal nutrient foramina in the human long bones of the lower limb...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29326269/exposed-subsurface-ice-sheets-in-the-martian-mid-latitudes
#5
Colin M Dundas, Ali M Bramson, Lujendra Ojha, James J Wray, Michael T Mellon, Shane Byrne, Alfred S McEwen, Nathaniel E Putzig, Donna Viola, Sarah Sutton, Erin Clark, John W Holt
Thick deposits cover broad regions of the Martian mid-latitudes with a smooth mantle; erosion in these regions creates scarps that expose the internal structure of the mantle. We investigated eight of these locations and found that they expose deposits of water ice that can be >100 meters thick, extending downward from depths as shallow as 1 to 2 meters below the surface. The scarps are actively retreating because of sublimation of the exposed water ice. The ice deposits likely originated as snowfall during Mars' high-obliquity periods and have now compacted into massive, fractured, and layered ice...
January 12, 2018: Science
https://www.readbyqxmd.com/read/29324925/bone-scintigraphy-can-diagnose-osteoporotic-vertebral-compression-fractures-better-than-conventional-radiography
#6
Sanja Dugonjić, Boris Ajdinović, Milan Ćirković, Gorica Ristić
OBJECTIVE: Most difficult and very frequent complications of osteoporosis are vertebral compression fractures (VCF). Bone scintigraphy with 99mTc-phosphonates enables early detection of vertebral compression fractures in the first 72 hours of occuring. Typical scintigraphic findings is markedly increased radiotracer uptake in the linear pattern, throughout collapsed vertebral body. Bone scintigraphy is usefull in follow-up of vertebral fractures healing, showing reduction of radiotracer uptake in fractured vertebrae...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29285154/impact-of-cusp-inclinations-on-dental-fractures-in-cracked-tooth-syndrome-model-and-relevant-risk-evaluation
#7
Nina Xie, Penglai Wang, Cui Wu, Wenting Song, Wen Wang, Zongxiang Liu
We explored the impact of cusp inclinations on dental fractures in cracked tooth syndrome model and formulated corresponding risk scale. Forty maxillary premolars were randomized into four groups for cusp inclination measurements by digital radiovisiography (RVG). For cracked tooth models, buccal and palatal cusp inclinations were achieved by grinding in groups I (59°-50°), II (64°-55°) and III (69°-60°), with group IV as blank control. All groups underwent compression loading test, with fracture levels recorded for statistical analysis...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29284983/biological-rehabilitation-of-complex-oblique-crown-root-fracture-segment-reattachment
#8
Iswarya R Raju, C P Sreedev, Sebeena Mathew, N T Deepa, K Karthick, T Boopathi
Dental trauma can predominantly affect the maxillary anteriors. Trauma can occur to any age group due to accidents, assaults, or leisure activities. The goal of the treatment for traumatically injured teeth is to return the teeth to acceptable function and form. In this case presentation, the endodontic and esthetic treatment approach of crown fracture is presented.
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29243185/effect-of-fiber-post-length-and-abutment-height-on-fracture-resistance-of-endodontically-treated-premolars-prepared-for-zirconia-crowns
#9
Jie Lin, Jukka Pekka Matinlinna, Akikazu Shinya, Michael George Botelho, Zhiqiang Zheng
The purpose of this study was to compare the fracture resistance, mode of fracture, and stress distribution of endodontically treated teeth prepared with three different fiber post lengths and two different abutment heights, using both experimental and finite element (FE) approaches. Forty-eight human maxillary premolars with two roots were selected and endodontically treated. The teeth were randomly distributed into six equally sized groups (n = 8) with different combinations of post lengths (7.5, 11, and 15 mm) and abutment heights (3 and 5 mm)...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29241997/quadrilateral-plate-fractures-of-the-acetabulum-proposition-for-a-novel-classification-system
#10
Walid A ElNahal, Mahmoud Abdel Karim, Sherif A Khaled, Ahmed Hazem Abdelazeem, Hazem Abdelazeem
BACKGROUND: Currently, there is no definition or classification system for quadrilateral plate (QLP) fractures; the aim was to anatomically and radiologically characterise the QLP, propose a definition and classify QLP fractures. METHODS: This study included an anatomical component and a radiological component. The anatomical study aimed at defining the characteristics of the QLP; the QLP was identified using four articulating bony pelvis specimens. A titanium mesh was placed on the specimens' quadrilateral surface; standard anteroposterior and oblique views were obtained, and axial CT images, to determine the radiological landmarks...
December 1, 2017: Injury
https://www.readbyqxmd.com/read/29202995/an-evaluation-of-the-herscovici-classification-for-fractures-of-the-medial-malleolus
#11
Stuart A Aitken, Ian Johnston, Angus C Jennings, Ivan T H Chua, Richard E Buckley
BACKGROUND: Despite its use in the literature, the application of the Herscovici classification system for medial malleolus fractures has not been evaluated. METHODS: We aimed to determine the reliability and accuracy of the Herscovici classification. The blinded radiographs of 130 patients were independently classified by four orthopaedic trauma surgeons. We held a consensus meeting where observers agreed on a final classification and this served as our reference standard...
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29196948/fracture-behavior-of-all-ceramic-implant-supported-and-tooth-implant-supported-fixed-dental-prostheses
#12
Abdul Rahman Alkharrat, Marc Schmitter, Stefan Rues, Peter Rammelsberg
OBJECTIVES: In vitro investigation of the effects of fixed dental prosthesis (FDP) support and loading conditions on the fracture behavior of all-ceramic, zirconia-based FDP veneered with computer-aided design/computer-aided manufacturing (CAD/CAM)-manufactured lithium disilicate ceramic. MATERIALS AND METHODS: Based on a model for a 3-unit FDP in the molar region (tooth in region 15, implant in region 17), 16 identical zirconia frameworks were fabricated and veneered with milled lithium disilicate ceramic...
December 2, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29181351/cerclage-wiring-as-an-adjunct-for-the-treatment-of-femur-fractures-series-of-11-cases
#13
Sanjay Agarwala, Aditya Menon, Sameer Chaudhari
Introduction: Cerclage wiring has been used in the past for osteosynthesis of femoral fractures. However, the technique went into disrepute as extensive soft tissue dissection, and periosteal stripping increased the risk of bone necrosis and delayed union. Advent of new instrumentation and minimally invasive technique has significantly reduced these complications. In spite of the limited indications for its application, reduction and stabilization with cerclage wiring can supplement osteosynthesis especially in spiral or oblique fracture morphology or those with a butterfly fragment instead of interfragmentary screw fixation...
July 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29178707/effect-of-cad-cam-glass-fiber-post-core-on-cement-micromorphology-and-fracture-resistance-of-endodontically-treated-roots
#14
Rogério Goulart da Costa, Andrea Freire, Eduardo Christiano Caregnatto de Morais, Evelise Machado de Souza, Giselle Maria Correr, Rodrigo Nunez Rached
PURPOSE: To investigate the fracture resistance of weakened roots restored with prefabricated or CAD/CAM-customized posts and cores as well as the thickness of the cement film and the presence of voids in the cement. METHODS: The roots of 40 human premolars were weakened by removing internal dentin with a diamond bur (2.5 mm in the coronal third and 1.5 mm in the apical third) and restored with prefabricated posts (PPs) or customized posts (CPs) with or without a zirconia crown (n= 10)...
February 2017: American Journal of Dentistry
https://www.readbyqxmd.com/read/29162241/influence-of-screw-combination-and-nail-materials-in-the-stability-of-anterograde-reamed-intramedullary-nail-in-distal-femoral-fractures
#15
Sergio Gabarre, Jorge Albareda, Luis Gracia, Sergio Puértolas, Elena Ibarz, Antonio Herrera
Intramedullary nailing (IM) is a technique universally accepted to treat femoral diaphyseal fractures. The treatment of fractures located in the distal third remains a controversial issue though. A finite element model of the femur has been developed, analyzing distal fractures with several gap sizes combined with different interlocking combinations of distal screws with one oblique screw proximally to stabilize the intramedullary nail. The mechanical strength of the nail against bending and compression efforts was also studied...
November 2017: Injury
https://www.readbyqxmd.com/read/29130654/-classification-and-treatment-of-sacroiliac-joint-dislocation
#16
Zhen Tan, Zhong Huang, Liang Li, Wei-Kun Meng, Lei Liu, Hui Zhang, Guang-Lin Wang, Fu-Guo Huang
OBJECTIVE: To develop a renewed classification and treatment regimen for sacroiliac joint dislocation. METHODS: According to the direction of dislocation of sacroiliac joint,combined iliac,sacral fractures,and fracture morphology,sacroiliac joint dislocation was classified into 4 types. Type Ⅰ (sacroiliac anterior dislocation): main fracture fragments of posterior iliac wing dislocated in front of sacroiliac joint. Type Ⅱ (sacroiliac posterior dislocation): main fracture fragments of posterior iliac wing dislocated in posterior of sacroiliac joint...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29102044/sliding-hip-screw-versus-intramedullary-nail-for-trochanteric-hip-fractures-a-randomised-trial-of-1000-patients-with-presentation-of-results-related-to-fracture-stability
#17
Martyn J Parker
AIMS: To determine the optimum choice of implant for a patient with a the different types of trochanteric hip fracture. PATIENTS AND METHODS: 1000 patients with a trochanteric hip fracture were randomised to internal fixation of the fracture with either a Sliding Hip Screw or an intramedullary nail. Fractures were subdivided into two part fractures, comminuted fractures and fractures at the level of the lesser trochanter (reversed/oblique and transverse). Functional assessment for up to one year from injury was undertaken by a research nurse blinded to the treatment allocation...
October 20, 2017: Injury
https://www.readbyqxmd.com/read/29082791/embedding-the-lateral-end-of-the-lag-screw-within-the-lateral-wall-in-the-repair-of-reverse-obliquity-intertrochanteric-femur-fracture
#18
Ken Hiragami, Jyunji Ishii
Objective The management of reverse oblique intertrochanteric femoral fractures is difficult because such fractures have unique biomechanical characteristics. This study was performed to review the results of treating reverse oblique intertrochanteric femoral fractures with a long cephalomedullary nail by embedding the lateral end of the lag screw to secure axial compression. Methods We herein report the surgical outcomes in seven patients with reverse oblique intertrochanteric fractures treated with our procedure...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29065818/antiresorptives-safety-concerns-clinical-perspective
#19
Jacques P Brown
Antiresorptive drugs, such as amino-bisphosphonates and denosumab (Dmab), have dominated osteoporosis therapies for over 20 years. Since osteoporosis is a chronic disease, antifracture therapy could continue for the rest of a patient's life. Phase III clinical trials for antiresorptive drugs assessed relatively small patient populations for short durations and excluded up to 80% of patients who might seek osteoporosis therapy in clinical practice. Postmarketing reports based upon millions of patient-years and long-term (>5 years) clinical administration have associated some previously unknown, rare adverse events with antiresorptive use including osteonecrosis of the jaw (ONJ) and atypical femur fractures (AFFs)...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/29056288/evaluation-of-an-experimental-oblique-plate-for-osteosynthesis-of-mandibular-condyle-fractures
#20
Florian Wagner, Martin Strasz, Hannes Traxler, Kurt Schicho, Rudolf Seemann
OBJECTIVE: The aim of this study was to test the bone thickness and potential screw length for osteosynthesis of condylar base fractures (according to the Loukota classification) with an experimental titanium plate, placed in an ideal position against 2 types of conventional plates. STUDY DESIGN: After exclusion of completely edentulous mandibles, 28 dentate macerated mandibles available at the time of the study were included. Linear regression models 1 and 2 compared the sums of the 2 cranial bone thicknesses and the 3 caudal thicknesses among the 3 different plate designs, and linear models 3 and 4 tested the bone thickness in the 2 most cranial screw axes...
September 21, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
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