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https://www.readbyqxmd.com/read/29027586/computational-simulation-study-on-ilio-sacral-screw-fixations-for-pelvic-ring-injuries-and-implications-in-asian-sacrum
#1
Chang-Soo Chon, Jin-Hoon Jeong, Bokku Kang, Han Sung Kim, Gu-Hee Jung
OBJECTIVES: Despite a high possibility of technique-related complications, ilio-sacral (IS) screw fixation is the mainstay of operative management in posterior pelvic ring injuries. We aimed to make IS screw trajectory with fully intraosseous path that was optimal and consistent, and confirm the possibility of transiliac-transsacral (TITS) screw fixation in Asian sacrum. METHODS: Eighty-two cadaveric sacra (42 males and 40 females) were enrolled and underwent continuous 1...
October 13, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29026939/-minimally-invasive-osteosynthesis-after-ankle-fractures-in-geriatric-patients-surgical-technique-with-the-aid-of-headless-full-thread-screws
#2
REVIEW
Bernhard Karich, Kajetan Klos, Paul Simons, Thomas Mückley, Thorsten Randt, Matthias Knobe
No abstract text is available yet for this article.
October 12, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29026669/factors-predicting-long-term-outcome-after-short-segment-posterior-fixation-for-traumatic-thoracolumbar-fractures
#3
Harsimrat Bir Singh Sodhi, Amey R Savardekar, Ravi B Chauhan, Devi Prasad Patra, Navneet Singla, Pravin Salunke
BACKGROUND: The "gold standard" for instrumentation of unstable thoracolumbar fracture-dislocations is pedicle screw and rod fixation. Although traditional treatment supports long-segment posterior fixation (LSPF), more recent studies show short-segment posterior fixation (SSPF) may be effective, but incur higher failure rates. Here, we evaluated the effectiveness of SSPF in the management of unstable thoracolumbar injuries and analyzed the factors impacting long-term outcomes. METHODS: In this retrospective analysis of 91 patients with thoracolumbar fractures managed with SSPF alone, we assessed the clinical and radiological parameters at preoperative, postoperative, and follow-up intervals along with reasons for failures of SSPF...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29025612/clavicle-aseptic-nonunion-is-there-a-place-for-cortical-allogenic-strut-graft
#4
Giuseppe Rollo, Giovanni Vicenti, Roberto Rotini, Antonella Abate, Antonio Colella, Antonio D'Arienzo, Massimiliano Carrozzo, Biagio Moretti
We investigated functional and radiological outcome in 57 cases of midshaft clavicle nonunion treated with open reduction and internal fixation with plate and screws over a 13 year-period. Intercalary bone graft was used in 42 patients; opposite autologous strut graft was used in 31 cases to provide mechanical support to the host bone. Patients were analysed using chart and radiological review and assessed with DASH questionnaire obtained at the latest follow-up. 37 patients were male while 20 were females, with a mean age of 35 years (63-17)...
October 2017: Injury
https://www.readbyqxmd.com/read/29025611/carbon-fiber-reinforced-intramedullary-nailing-in-musculoskeletal-tumor-surgery-a-national-multicentric-experience-of-the-italian-orthopaedic-society-siot-bone-metastasis-study-group
#5
Andrea Piccioli, Raimondo Piana, Michele Lisanti, Alberto Di Martino, Barbara Rossi, Francesco Camnasio, Marco Gatti, Pietro Maniscalco, Franco Gherlinzoni, Maria Silvia Spinelli, Davide Maria Donati, Roberto Biagini, Rodolfo Capanna, Vincenzo Denaro
INTRODUCTION: Carbon fiber reinforced (CFR) implants have been proposed for the treatment of fractures or impending fractures of the long bones in the oncology patient. Aim of this study is to present the largest cohort of oncology patients operated by CFR nailing by the Italian Orthopaedic Society (SIOT) Bone Metastasis Study Group. METHODS: 53 adult oncology patients were operated on with a CFR-PEEK nail. All the data from adjuvants therapies were collected. Bone callus formation, response to radiotherapy, relapse or progression of the osteolysis were recorded...
October 2017: Injury
https://www.readbyqxmd.com/read/29025609/blood-loss-in-trochanteric-fractures-multivariate-analysis-comparing-dynamic-hip-screw-and-gamma-nail
#6
Mario Ronga, Daniele Bonzini, Marco Valoroso, Giuseppe La Barbera, Jacopo Tamini, Mario Cherubino, Paolo Cherubino
INTRODUCTION: Anaemia in patients with trochanteric fracture is associated with increased morbidity and mortality and it is an independent risk factor for functional mobility of patients. Several authors have reported the blood loss following operative treatment comparing different fixation systems but few authors have evaluated many associated variables that could influence the perioperative blood loss. PURPOSE: To evaluate the blood loss in patients that had their trochanteric fracture stabilized with dynamic hip screw (DHS) or Gamma nail...
October 2017: Injury
https://www.readbyqxmd.com/read/29025607/peek-radiolucent-plate-for-distal-radius-fractures-multicentre-clinical-results-at-12-months-follow-up
#7
Bruno Di Maggio, Pasquale Sessa, Patrizia Mantelli, Pietro Maniscalco, Fabrizio Rivera, Giorgio Maria Calori, Luigi Bisogno, Gabriele Scaravilli, Marco Caforio
INTRODUCTION: Open reduction and internal fixation (ORIF) with plate and screws represents the recommended treatment for unstable intra-articular distal radius fractures. Although significant progresses in surgical technique have been made, anatomical reconstruction of radio-carpal articular surface still represent a difficult task, especially in multifragmentary fractures. Available PEEK reinforced-carbon fiber composite radiolucent devices allow both an easier and more careful assessment of intra-operative reduction of the articular surface of distal radius and prompt correction of any residual step deformity...
October 2017: Injury
https://www.readbyqxmd.com/read/29023901/additive-manufactured-push-fit-implant-fixation-with-screw-strength-pull-out
#8
Richard J van Arkel, Shaaz Ghouse, Piers E Milner, Jonathan R T Jeffers
Additive manufacturing offers exciting new possibilities for improving long-term metallic implant fixation in bone through enabling open porous structures for bony ingrowth. The aim of this research was to investigate how the technology could also improve initial fixation, a precursor to successful long-term fixation. A new barbed fixation mechanism, relying on flexible struts was proposed and manufactured as a push-fit peg. The technology was optimised using a synthetic bone model and compared with conventional press-fit peg controls tested over a range of interference fits...
October 11, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29022791/x-bolt-unforeseen-placement-complication-case-report
#9
A D Clarke, Jbt Herron, J L McVie
With the introduction of the World Hip Trauma Evaluation Four clinical trial, fixation of pertrochanteric neck of femur fractures is becoming a hot topic. In this trial, the novel X-Bolt expanding bolt implant is being compared with the current gold standard of a sliding hip screw. We present a previously undescribed complication when inserting the bolt into the femoral head, where the expandable wings penetrate the femoral neck due to misplacement of the bone crusher or the X-Bolt prosthesis. This unforeseen complication required the introduction of several additional corrective intraoperative steps...
September 15, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29022057/multiple-cannulated-screws-vs-dynamic-hip-screws-for-femoral-neck-fractures-a%C3%A2-meta-analysis
#10
Lei Lei Zhang, Ying Zhang, Xianghao Ma, Youwen Liu
OBJECTIVE: Various fixation devices have been reported for stabilization of femoral neck fractures. Numerous studies on arthroplasty versus internal fixation devices in the treatment of femoral neck fractures have been performed, but the optimal approach for internal fixation has not been analyzed. METHODS: A meta-analysis and system evaluation were performed to compare clinical effects. We searched PubMed, Embase, Cochrane Library, and Web of Science(TM) for randomized, controlled trials (RCTs) comparing multiple cannulated screws (MCS) with dynamic hip screws (DHS) and analyzed the failure rate of operations, the reoperation rate, and postoperative complications...
October 11, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29021886/antibiotic-laden-arthroplasty-with-a-novel-design-of-cement-mould-and-metallic-endoskeleton-for-treatment-of-hip-infection-an-inexpensive-alternative-a-preliminary-report-of-two-cases
#11
Cch William, S Simmrat, A M Suhaeb
Infection of the hip after implant fixation is an uncommon yet devastating complication that results in poor long-term outcome. The gold standard treatment for chronic infection after hip arthroplasty is a two-stage protocol: eradication of infection, follow by re-implantation arthroplasty. The use of interim antibiotic-laden cement spacer has become a popular procedure to maintain hip joint function and provide antibiotic elution simultaneously before re-implantation. However, antibiotic cement spacer is mechanically weak and breaks if overloaded...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29021874/functional-outcome-of-isolated-hoffa-fractures-treated-with-cannulated-cancellous-screw
#12
R Singh, R B Singh, M Mahendra
Introduction: Isolated Hoffa fracture is an infrequent injury and little research has been done on this subject. The purpose of this study was to evaluate the functional outcome and complications of surgically managed Hoffa fractures with cannulated cancellous screw. Materials and Methods: Between 2011 and 2014, eight isolated Hoffa fractures in seven adult patients with mean age 39.8±11.9 years (range 25-60 years) were managed with cannulated cancellous screw of 6.5mm diameter applied in anterior to posterior direction using swashbuckler and medial parapatellar approach for lateral and medial Hoffa fractures respectively...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29021865/minimally-invasive-pericardial-implantable-cardioverter-defibrillator-placement-in-a-young-child
#13
Wakana Maki, Hiroko Asakai, Kazuhiro Shiraga, Takahiro Shindo, Yoichiro Hirata, Ryo Inuzuka, Yasutaka Hirata, Akira Oka
We report the successful minimally invasive placement of a pericardial implantable cardioverter-defibrillator (ICD) in a 16-kg child. A transvenous ICD dual coil was advanced through a small subxiphoid incision and screwed into the oblique sinus pericardium under fluoroscopic guidance. An additional sense-pace lead was sutured onto the right ventricular apex, and the generator was placed in the upper abdominal wall through the same incision. Threshold testing demonstrated successful defibrillation at 15 J...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021488/aerobic-dechlorination-of-dichloromethane-using-biostimulation-agent-bd-c-in-continuous-and-batch-cultures-of-xanthobacter-autotrophicus-gj10
#14
Akifumi Hosoda, Yuta Isomura, Syungo Takeo, Takuho Onai, Kazutaka Takeuchi, Minoru Toda, Hiroto Tamura
It is important to construct microbiological treatment systems for organic solvent-contaminated water. We developed a continuous culture supplemented with a biostimulation agent named BD-C, which is formulated from canola oil, and Xanthobacter autotrophicus strain GJ10 for an aerobic dichloromethane (DCM)-dechlorinating microorganism. The continuous culture was a chemostat constructed using a 1 L screw-capped bottle containing artificial wastewater medium with 2.0 mM DCM and 1.0% (v/v) BD-C. The expression of genes for DCM metabolism in the dechlorinating aerobe was monitored and analyzed by reverse transcription-quantitative PCR...
October 11, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/29019807/pedicle-screw-insertion-accuracy-using-o-arm-robotic-guidance-or-freehand-technique-a-comparative-study
#15
Pietro Aniello Laudato, Katarzyna Pierzchala, Constantin Schizas
STUDY DESIGN: Retrospective radiological study OBJECTIVE.: To evaluate the accuracy of pedicle screw insertion using O-Arm navigation, Robotic assistance or a freehand fluoroscopic technique. SUMMARY OF BACKGROUND DATA: Pedicle screw insertion using either 'O-Arm' navigation or robotic devices is gaining popularity. Although several studies are available evaluating each of those techniques separately, no direct comparison has been attempted. METHODS: 84 patients undergoing implantation of 569 lumbar and thoracic screws were divided in three groups...
October 10, 2017: Spine
https://www.readbyqxmd.com/read/29018961/accuracy-of-a-patient-specific-template-for-pedicle-screw-placement-compared-with-a-conventional-method-a-meta-analysis
#16
Yong Fan, Jin-Peng Du, Qi-Ning Wu, Jia-Nan Zhang, Ding-Jun Hao
INTRODUCTION: Accurate placement of pedicle screws in spine surgery is a challenge for surgeons. Patient-specific template techniques have the potential for improving the accuracy of screw placement. The target of this analysis was to investigate differences in terms of accuracy of pedicle screw insertion between patient-specific template assistance and the conventional free-hand method for reconstruction of spinal stability. MATERIALS: The Cochrane Library, Ovid, Web of Science, PubMed, EMBASE and CNKI database were searched until February 2017 for a systematic review, and several comparative studies were screened for comparisons of accuracies of pedicle screw insertion with patient-specific assistance and conventional methods...
October 10, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29017980/predisposing-factors-of-fracture-nonunion-after-posterior-c1-lateral-mass-screws-combined-with-c2-pedicle-laminar-screws-fixation-for-type-ii-odontoid-fracture
#17
Hui Wang
INTRODUCTION: The aim of this study was to explore the predisposing factors for fracture nonunion after C1 lateral screw combined with C2 pedicle/laminar screw for type II odontoid fracture, and hope to provide references in decision making and surgical planning for spinal surgeons. METHODS: This is a retrospective study. By retrieving the medical records from January 2010 to July 2015 in our hospital, 117 type II odontoid fracture patients were reviewed. According to the occurrence of fracture union at the final follow up, patients were divided into two groups: Union group and Non-union group...
October 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29017580/a-retrospective-analysis-of-the-intertan-nail-and-proximal-femoral-nail-anti-rotation-in-the-treatment-of-intertrochanteric-fractures-in-elderly-patients-with-osteoporosis-a-minimum-follow-up-of-3%C3%A2-years
#18
Hui Zhang, Xiaoxiao Zhu, Genwang Pei, Xianshang Zeng, Nan Zhang, Ping Xu, Deng Chen, Weiguang Yu, Xinchao Zhang
BACKGROUND: The study aims to compare the long-term functional and radiographic outcomes of two devices for the treatment of primary intertrochanteric fractures (IFs, OTA 3.1A2.1-A2.3) in elderly patients with osteoporosis. METHODS: Between December 2010 and August 2014, 332 elderly osteoporosis patients with IFs (OTA 3.1A2.1-A2.3) fixed by an InterTAN nail (IT) or a proximal femoral nail anti-rotation (PFNA) device were retrospectively evaluated. Follow-up occurred 1, 3, 6, and 12 months postoperatively and every year thereafter...
October 10, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29017495/treatment-of-thoracic-or-lumbar-burst-fractures-with-balloon-assisted-endplate-reduction-using-tricalcium-phosphate-cement-histological-and-radiological-evaluation
#19
Joep Kitzen, Martijn G M Schotanus, Herbert S W Plasschaert, Frans-Jan H Hulsmans, Pieter B J Tilman
BACKGROUND: Short-segment pedicle-screw instrumentation is frequently used to stabilize thoracolumbar burst fractures. A recognized disadvantage of this procedure is recurrent kyphosis from intervertebral disc creep into the fractured central endplate. Balloon Assisted Endplate Reduction (BAER) using Tricalcium Phosphate bone cement (TCP) enables elevation of the centrally depressed endplate. Our objective was to evaluate the bone-tissue response to TCP and to analyse whether BAER using TCP can prevent recurrent kyphosis after removal of the instrumentation...
October 10, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29017309/langerhans-cell-histiocytosis-of-the-thoracic-spine-in-an-adult
#20
Myeong Cheol Kim, Sun Hee Sung, Yongjae Cho
We report a case of a 45-year-old man with a complaint of both leg weakness and hypoesthesia. Radiological evaluation revealed an osteolytic lesion of the ninth thoracic vertebra. The patient underwent posterior corpectomy with total excision of the tumor, mesh cage insertion with posterior screw fixation and subsequent radiotherapy. Histology confirmed the diagnosis of Langerhans cell histiocytosis (LCH). This case report presents the diagnostic work-up, histopathological evaluation, and the treatment procedures of rare LCH in the thoracic spine...
September 2017: Korean Journal of Spine
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