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https://www.readbyqxmd.com/read/28925750/study-of-the-x-ray-diagnosis-of-unstable-pelvic-fracture-displacements-in-three-dimensional-space-and-its-application-in-closed-reduction
#1
Chengdi Shi, Leyi Cai, Wei Hu, Junying Sun
ABSTRACTS Objective: To study the method of X-ray diagnosis of unstable pelvic fractures displaced in three-dimensional (3D) space and its clinical application in closed reduction. METHODS: Five models of hemipelvic displacement were made in an adult pelvic specimen. Anteroposterior radiographs of the pelvis were analyzed in PACS. The method of X-ray diagnosis was applied in closed reductions. From February 2012 to June 2016, 23 patients (15 men, 8 women; mean age, 43.4 years) with unstable pelvic fractures were included...
September 19, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28918874/the-outcome-of-intracapsular-hip-fracture-fixation-using-the-targon-femoral-neck-tfn-locking-plate-system-or-cannulated-cancellous-screws-a-comparative-study-involving-2004-patients
#2
Zeiad Alshameeri, Mohamed Elbashir, Martyn J Parker
AIM: This study compares the outcome of intracapsular hip fracture fixation using the Targon Femoral Neck (TFN) locking plate system with the standard fixation using cannulated cancellous screws (CCS). PATIENTS AND METHOD: Analyses of a prospectively collected data of all patients treated for intracapsular hip fractures using the TFN system and CCS at our department over a period of 28 years. Baseline characteristics and specific outcome measures where compared...
September 1, 2017: Injury
https://www.readbyqxmd.com/read/28898793/displaced-acromion-fracture-a-rare-injury-case-report
#3
Özgür Çiçekli, Abdülhalim Akar, Hüseyin Nevzat Topçu
INTRODUCTION: Acromion fractures are extremely rare. There are no common accepted treatment schemes and fixation methods We aimed to present a case which may contribute to the diagnosis and treatment of acromion fracture in a patient with polytrauma. PRESENTATION OF CASE: Acromion fracture associated with scapula and clavicle fractures was diagnosed in 40 years old patient and treated with open reduction and cannulated screw fixation. The fracture healing was completed without causing subacromial impingement...
September 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28885726/achieving-interfragmentary-compression-without-special-drilling-technique-or-screw-design
#4
Jonathan Eastman, Bradley Deafenbaugh, Blaine Christiansen, Tanya Garcia-Nolen, Mark Lee
Traditional fracture fixation teaching suggests that fully threaded screws do not provide interfragmentary compression unless placed through a glide hole. Based on this assumption, pelvic surgeons typically use fully threaded screws in the treatment of comminuted transforaminal sacral fractures to limit iatrogenic neuroforaminal stenosis. Clinical experience with fully threaded screws suggests that interfragmentary compression actually does occur. We hypothesized that the use of a fully threaded screw does not produce any interfragmentary compression and that there is no difference in insertional torque between partially threaded and fully threaded screws...
September 8, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28881111/biomechanical-comparison-of-inter-fragmentary-compression-pressures-lag-screw-versus-herbert-screw-for-anterior-odontoid-screw-fixation
#5
Jin-Woo Park, Kyoung-Tae Kim, Joo-Kyung Sung, Seong-Hyun Park, Ki-Woong Seong, Dae-Chul Cho
OBJECTIVE: The purpose of the present study was to compare inter-fragmentary compression pressures after fixation of a simulated type II odontoid fracture with the headless compression Herbert screw and a half threaded cannulated lag screw. METHODS: We compared inter-fragmentary compression pressures between 40- and 45-mm long 4.5-mm Herbert screws (n=8 and n=9, respectively) and 40- and 45-mm long 4.0-mm cannulated lag screws (n=7 and n=10, respectively) after insertion into rigid polyurethane foam test blocks (Sawbones, Vashon, WA, USA)...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28854767/open-reduction-and-internal-fixation-of-isolated-posterior-cruciate-ligament-avulsion-fractures-clinical-and-functional-outcome
#6
Sachin Joshi, Chirag Bhatia, Ashwin Gondane, Avinash Rai, Sumer Singh, Shobhit Gupta
Purpose: The posterior cruciate ligament (PCL) presents commonly with avulsion fractures of its tibial attachment. An avulsion fracture of the PCL, if not surgically fixed, may lead to secondary changes in the knee joint. Various fixation techniques have been explored with use of lag screws, steel wires, absorbable screws, suture anchors and straddle nails. The purpose of this study was to evaluate the clinical and functional outcome of open reduction and internal fixation of tibial avulsion injuries of the PCL using cannulated cancellous screws...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28844681/dynamic-hip-system-blade-versus-cannulated-compression-screw-for-the-treatment-of-femoral-neck-fractures-a-retrospective-study
#7
Chao Chen, Li Yu, Xin Tang, Mo-Zhen Liu, Li-Zhong Sun, Changjian Liu, Zhen Zhang, Chang-Zhou Li
OBJECTIVE: The aim of this study was to compare clinical outcomes of patients with femoral neck fractures treated with the dynamic hip system blade (DHS-BLADE) or cannulated compression screws. METHODS: Eighty-six patients with femoral neck fractures were treated by closed reduction internal fixation with a DHS-BLADE (n = 42; 18 males and 24 females; mean age: 56.3 years (37-87)) or cannulated compression screws (n = 44; 20 males and 24 females; mean age: 53...
August 24, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28840672/-minimal-invasive-osteosynthesis-with-cannulated-screws-in-metacarpal-fractures
#8
R Romo-Rodríguez, C Arroyo-Berezowsky
Metacarpal fractures comprise 18 to 44% of hand fractures. Fractures from the second to the fifth metacarpals are 88% of the metacarpal fractures and fractures of the fifth metacarpals are the most common. Fractures of the neck of the fifth metacarpal are about 20% of all the hand fractures. Most of these fractures can be treated conservatively with good functional results. However, for those neck and shaft unstable fractures that need surgical treatment, there is no gold standard for osteosynthesis. Recently, there have been reports of minimally invasive osteosynthesis using headless retrograde intramedullary cannulated screws with good functional results...
March 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28819799/accuracy-of-cannulated-pedicle-screw-versus-conventional-pedicle-screw-for-extra-pedicular-screw-placement-in-dysplastic-pedicles-without-cancellous-channel-in-adolescent-idiopathic-scoliosis-a-computerized-tomography-ct-analysis
#9
Chee Kean Lee, Chris Yin Wei Chan, Siti Mariam Abd Gani, Mun Keong Kwan
PURPOSE: This study aimed at studying the accuracy and safety of extra-pedicular screw insertion for dysplastic pedicles in AIS comparing cannulated screw system versus conventional screw system. METHODS: 104 AIS patients with 1524 pedicle screws were evaluated using CT scan. 302 screws were inserted in dysplastic pedicles using fluoroscopic guidance technique. 155 screws were inserted using a cannulated system (Group 1), whereas 147 screws were inserted using standard screws (Group 2)...
August 17, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28818323/medial-buttress-plate-augmentation-of-cannulated-screw-fixation-in-vertically-unstable-femoral-neck-fractures-surgical-technique-and-preliminary-results
#10
Ye Ye, Ke Chen, Kewei Tian, Wuyin Li, Cyril Mauffrey, David J Hak
OBJECTIVE: To evaluate the outcome and complications of unstable Pauwels type 3 femoral neck fractures treated with a combination fixation of three cannulated screws and a medial buttress plate. PATIENTS AND METHODS: From October 2015 to June 2016, 28 patients under 60 years of age with Pauwels type 3 femoral neck fracture were treated with open reduction and internal fixation using a direct anterior approach. Fracture consisted of three cannulated screws augmented with a medial buttress plate...
August 9, 2017: Injury
https://www.readbyqxmd.com/read/28810871/effect-of-different-inner-core-diameters-on-structural-strength-of-cannulated-pedicle-screws-under-various-lumbar-spine-movements
#11
Chia-Ming Chang, Yu-Shu Lai, Cheng-Kung Cheng
BACKGROUND: Currently, cannulated pedicle screws have been widely used in minimal invasive or navigation techniques. However, the stress distribution and the strength of different core diameters of cannulated screw are not clear. This study aimed to investigate the mechanical strength of cannulated screws with different inner core diameter under various lumbar spine movements using finite element analysis. RESULTS: The results showed that the von-Mises stress of a cannulated screw was larger than that of a solid screw in all loading conditions, especially above 2 mm in cannulated core diameter...
August 15, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28809629/-talar-neck-fractures-treated-using-percutaneous-screw-fixation
#12
R Veselý, M Kelbl, J Kacián, V Hulka, J Kočiš, R Kunovský
PURPOSE OF THE STUDY Closed reduction and percutaneous fixation of nondisplaced talar neck fractures have been applied by some authors. The aim of this paper is to assess the results and complications of this minimally invasive technique. MATERIAL AND METHODS In the period from 2009 to 2014, twenty-one patients with a talar neck fracture were observed after closed reduction and percutaneous screw fixation in the Traumatological Hospital in Brno. The mean age of the patients was 38 years (range 18-56 years)...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28800742/an-intramedullary-echidna-pin-for-fixation-of-comminuted-clavicle-fractures-a-biomechanical-study
#13
David Ackland, Ian Griggs, Patrick Hislop, Wen Wu, Minoo Patel, Martin Richardson
BACKGROUND: Intramedullary fixation of comminuted mid-shaft clavicle fractures has traditionally been employed with satisfactory clinical outcomes; however, pins with smooth surfaces may protrude from the bone and are prone to migration, while some threaded pins are difficult to remove post-operatively. The aim of this proof-of-concept study was to develop and evaluate the biomechanical strength of a novel intramedullary Echidna pin device designed to maintain fracture reduction, resist migration and facilitate ease of post-operative removal...
August 11, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28766018/s2-ai-screw-placement-with-the-aide-of-electronic-conductivity-device-monitoring-a-retrospective-analysis
#14
Faheem A Sandhu, Jason E McGowan, Daniel R Felbaum, Hasan R Syed, Kyle B Mueller
STUDY DESIGN: A retrospective analysis of two consecutive patients who underwent a novel surgical technique. OBJECTIVE: A report of a novel surgical technique utilizing an electronic conductivity device guidance to aide placement of S2-Alar-Iliac (S2-AI) instrumentation. Electronic conductivity guidance for instrumentation of the thoracolumbar spine is an accepted means of improving intraoperative accuracy. Although commercially available for percutaneous techniques, there is a paucity of literature regarding its use...
August 1, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28760031/minimally-invasive-direct-pars-repair-with-cannulated-screws-and-recombinant-human-bone-morphogenetic-protein-case-series-and-review-of-the-literature
#15
George M Ghobrial, Kenneth M Crandall, Anthony Lau, Seth K Williams, Allan D Levi
OBJECTIVE The objective of this study was to describe the use of a minimally invasive surgical treatment of lumbar spondylolysis in athletes by a fluoroscopically guided direct pars screw placement with recombinant human bone morphogenetic protein-2 (rhBMP-2) and to report on clinical and radiographic outcomes. METHODS A retrospective review was conducted of all patients treated surgically for lumbar spondylolysis via a minimally invasive direct pars repair with cannulated screws. Demographic information, clinical features of presentation, perioperative and intraoperative radiographic imaging, and postoperative data were collected...
August 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28752244/accuracy-of-3d-fluoro-navigated-anterior-transpedicular-screws-in-the-subaxial-cervical-spine-an-experimental-study-on-human-specimens
#16
Jan Bredow, C Meyer, F Siedek, W F Neiss, L Löhrer, L P Müller, P Eysel, G Stein
INTRODUCTION: Pedicle screw stabilization, the standard technique in the thoracic and lumbar spine, is increasingly used in the cervical spine. Initial studies on the use of anterior pedicle screws (ATPS) in the cervical spine have been recently published. ATPS use has theoretical advantages over posterior stabilization. We have already established a 3D-fluoroscopy navigation setup in a study of artificial bones. The aim of the current study was to evaluate the positioning quality/accuracy of ATPS introduced to human specimens...
July 27, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28739433/pain-management-the-rising-role-of-interventional-oncology
#17
D Filippiadis, S Tutton, A Kelekis
Patients with early or metastatic cancer may suffer from pain of different origins. The vast majority of these patients are not adequately treated by means of systemic analgesia and radiotherapy. Percutaneous neurolysis is performed using chemical agents or thermal energy upon sympathetic nervous system plexus for pain reduction and life quality improvement. Ablation and vertebral augmentation are included in clinical guidelines for metastatic disease. As far as the peripheral skeleton is concerned bone augmentation and stabilization can be performed by means of cement injection either solely performed or in combination to cannulated screws or other metallic or peek implants...
September 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28738797/tibiotalocalcaneal-ttc-arthrodesis-with-reverse-philos-plate-and-medial-cannulated-screws-with-lateral-approach
#18
Jian Fan, X Zhang, Y Luo, G W You, W K Ng, Y F Yang
BACKGROUND: Tibiotalocalcaneal arthrodesis is most common and effective surgical treatment for severe hindfoot pathology, but the fusion rate is often lower than the ordinary tibiotalar arthrodesis because of the more serious joint disease associated with obvious deformity and osteoporosis. Recent literature describe tibiotalocalcaneal arthrodesis with reverse PHILOS plate with good clinical outcome result, though some patients non-union, due to eccentric force of the plate may be hidden...
July 24, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28710046/image-guidance-to-aid-pedicle-screw-fixation-of-a-lumbar-fracture-dislocation-injury-in-a-toddler
#19
John K Houten, Jonathan Nahkla, Shashank Ghandi
BACKGROUND: Pedicle screw fixation of the lumbar spine in children age <2 years is particularly challenging, as successful cannulation of the small pedicle dimensions requires a high level of precision and there are no implants specifically designed for the infant spine. Image-guided navigation is commonly used in adult spinal surgery and may be particularly helpful for the placement of spinal screws in areas where the bony anatomy is small and/or anatomically complex, as in the upper cervical area...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28697081/suture-repair-of-a-pole-patella-fracture
#20
Stephanie Swensen, Nina Fisher, Abiola Atanda, Kenneth A Egol
PURPOSE: Operative fixation of displaced patella fractures is considered to be standard of care. However, patients with inferior pole patella fractures have limited options in terms of fixation. This video demonstrates the repair of an inferior pole patella fracture using nonabsorbable suture fixation. METHODS: Suture repair of patella fractures is a clinically acceptable technique, yielding similar functional results to patella fractures treated with K-wires or cannulated screws while reducing the rates of removal of hardware after fixation...
August 2017: Journal of Orthopaedic Trauma
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