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Iliac fixation

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https://www.readbyqxmd.com/read/28230623/safety-and-accuracy-of-freehand-versus-navigated-iliac-screws-results-from-222-screw-placements
#1
Randall J Hlubek, Kaith K Almefty, David S Xu, Jay D Turner, U Kumar Kakarla
STUDY DESIGN: Retrospective review. OBJECTIVE: To compare the safety and accuracy of the freehand technique versus stereotactic navigation for placement of iliac screws. SUMMARY OF BACKGROUND DATA: Iliac screw fixation is often used to augment lumbosacral reconstruction in advanced spine disease to increase the likelihood of successful arthrodesis. Iliac screws can be placed with image guidance, using either intraoperative fluoroscopy or computed tomography (CT) to guide navigation...
February 22, 2017: Spine
https://www.readbyqxmd.com/read/28199880/is-pelvic-fixation-the-only-option-to-provide-additional-stability-to-the-sacral-anchorage-in-long-lumbar-instrumentation-a-comparative-biomechanical-study-of-new-techniques
#2
David Volkheimer, Heiko Reichel, Hans-Joachim Wilke, Friederike Lattig
BACKGROUND: Supplementary iliac screws have the highest potential to protect S1-pedicle-screws from loosening in long fusion constructs. However, this technique bridges the iliosacral joint with potential disadvantages for the patient. This study aimed to evaluate if two different established fixation techniques can be used in addition to pedicle screws as alternative to iliac screws, and if these two techniques can provide similar stability when S1-pedicle-screws are loosened. METHODS: Flexibility testing with pure moments of 7...
February 8, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28193137/risk-factors-for-adjacent-segment-degeneration-after-iliac-screw-fixation-in-lumbar-degenerative-kyphoscoliosis
#3
Sang-Il Kim, Kee-Yong Ha, Dong-Whan Suh, In-Soo Oh
PURPOSE: To analyze pre- and postoperative spinopelvic parameters and sagittal profiles in lumbar degenerative kyphoscoliosis (LDK) patients who underwent surgery using iliac screw (IS) and the incidence and risk factor of radiological adjacent segment degeneration (ASD). METHODS: A total of 32 patients, who had undergone surgical correction and lumbar/thoracolumbar fusion with pedicle screws and IS instrumentation for LDK with a minimum 2-year follow-up, were included...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28185981/analysis-of-the-s2-alar-iliac-screw-as-compared-with-the-traditional-iliac-screw-does-it-increase-stability-with-sacroiliac-fixation-of-the-spine
#4
Daniel G Hoernschemeyer, Troy D Pashuck, Ferris M Pfeiffer
BACKGROUND CONTEXT: Arthrodesis of the lumbosacral junction continues to be a challenge in pediatric and adult spinal deformity surgery. PURPOSE: To evaluate the biomechanical rigidity of two types of lumbosacral fixation. Our hypothesis was that the use of S2 alar-iliac (S2AI) fixation will result in statistically similar biomechanical fixation as compared with use of an iliac screw with a 95% confidence interval. STUDY SETTING: Controlled biomechanical laboratory METHODS: Ten human cadaveric lumbosacral specimens were separated into two test groups: (1) S2AI (n=5) and (2) iliac screw (n=5)...
February 6, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28166706/vascular-occlusion-following-application-of-subcutaneous-anterior-pelvic-fixation-infix-technique
#5
Adam Smith, I A Malek, James Lewis, K Mohanty
We report a case of bilateral external iliac artery compression after application of subcutaneous anterior pelvic fixation (INFIX) technique in a 51-year-old male with an unstable pelvic fracture sustained following a motor vehicle accident. This has not been previously reported in the literature. The management of this complication is discussed in detail, along with key precautions and technical steps to consider while utilizing the 'INFIX' technique for pelvic fractures.
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28149713/arthroscopic-iliac-crest-bone-block-for-reconstruction-of-the-glenoid-a-fixation-technique-using-an-adjustable-length-loop-cortical-suspensory-fixation-device
#6
Socrates Kalogrianitis, Vasileios Tsouparopoulos
Recurrent anterior shoulder instability with significant bone loss represents a surgical challenge. Anterior bone block procedures including variations of the Latarjet coracoid transfer have been used in this setting. Bone graft resorption with prominence of the metalwork is a serious concern, whereas the relative contribution of the dynamic sling effect of a Latarjet procedure is still controversial. We describe an arthroscopic technique for anatomic reconstruction of anterior glenoid bone defects using autologous iliac crest graft...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28117081/post-traumatic-forearm-nonunion-in-healthy-skeletally-immature-children-a-report-on-15-cases
#7
Giovanni Luigi Di Gennaro, Stefano Stilli, Giovanni Trisolino
BACKGROUND: Nonunion is a rare but severe complication following forearm fracture in skeletally immature patients. The purpose of this study is to describe a case series of pediatric forearm nonunions treated at our Institute. MATERIALS AND METHOD: We retrospectively reviewed medical charts and radiographs of healthy children affected by post-traumatic nonunion of the forearm, from April 1992 to July 2015. An overall series of 15 cases was included in the study...
January 9, 2017: Injury
https://www.readbyqxmd.com/read/28116282/autologous-bone-grafting-and-revision-plating-in-a-case-of-persistent-high-tibial-osteotomy-non-union
#8
Tan Shi Ming, Wong Merng Koon
INTRODUCTION: Uni-compartmental knee arthritis may be treated with several surgical options including uni-compartmental knee arthroplasty, total knee arthroplasty and high tibial osteotomy. Non-union is a well-established and common complication that may arise from the latter option and few reports have shown successful treatment of persistent non-union of high tibial osteotomy. CASE PRESENTATION: We present a case of persistent non-union after high tibial osteotomy treated with autologous iliac crest bone grafting and revision plating...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28110796/effectiveness-of-hindfoot-arthrodesis-by-stable-internal-fixation-in-various-eichenholtz-stages-of-neuropathic-ankle-arthropathy
#9
Silvampatty R Sundararajan, Kanchana P Srikanth, Handenahally S Nagaraja, Shanmuganathan Rajasekaran
The optimal time to treat neuropathic (Charcot) arthropathy of the ankle and peritalar joint is controversial because of the various treatment options available and the variable results reported in published studies. We sought to determine the outcome of hind foot arthrodesis with stable internal fixation in patients with different Eichenholtz stages of arthropathy. We prospectively studied patients with substantial disabilities caused by neuropathic arthropathy in deformed, unstable ankle and peritalar joints, with or without ulcerations, who had undergone treatment from July 2007 to December 2012...
January 16, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28107243/robotic-guidance-for-s2-alar-iliac-screws-in-spinal-deformity-correction
#10
S Samuel Bederman, Peter Hahn, Vincent Colin, P Douglas Kiester, Nitin N Bhatia
STUDY DESIGN: A retrospective cohort study of patients who underwent S2-alar-iliac (S2AI) screw insertion using robotic guidance in long constructs for spinal deformity correction extending to the sacrum performed at a single institution. OBJECTIVE: To assess and evaluate the feasibility and accuracy of robotic guidance for S2AI screw insertion. SUMMARY OF BACKGROUND DATA: Pelvic fixation has become a common adjunct to long fusions extending to the sacrum...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28104229/computational-analysis-of-the-safe-zone-for-the-antegrade-lag-screw-in-posterior-column-fixation-with-the-anterior-approach-in-acetabular-fracture-a-cadaveric-study
#11
Gu-Hee Jung, Yongkoo Lee, Joon-Woo Kim, Ji-Wan Kim
OBJECTIVE: The fluoroscopically-guided procedure of antegrade posterior lag screw in posterior column fixation through anterior approach is technique-dependent and requires an experienced surgeon. The purpose of this study was to establish the safe zone for the antegrade posterior lag screw by using computational analysis. METHOD: The virtual three-dimensional model of 178 hemi-pelvises was created from the CT data (DICOM format) by using Mimics(®) program, and were used to measure the safe zone of antegrade lag screw fixation on the inner table of the iliac wing, and the largest diameter of cylindrical implant inside safe zone...
January 13, 2017: Injury
https://www.readbyqxmd.com/read/28097243/range-of-motion-sacral-screw-and-rod-strain-in-long-posterior-spinal-constructs-a-biomechanical-comparison-between-s2-alar-iliac-screws-with-traditional-fixation-strategies
#12
Chester E Sutterlin, Antony Field, Lisa A Ferrara, Andrew L Freeman, Kevin Phan
BACKGROUND: S1 screw failure and L5/S1 non-union are issues with long fusions to S1. Improved construct stiffness and S1 screw offloading can help avoid this. S2AI screws have shown to provide similar stiffness to iliac screws when added to L3-S1 constructs. We sought to examine and compare the biomechanical effects on an L2-S1 pedicle screw construct of adding S2AI screws, AxiaLIF, L5-S1 interbody support via transforaminal lumbar interbody fusion (TLIF), and to examine the effect of the addition of cross connectors to each of these constructs...
December 2016: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/28097242/anterior-to-psoas-atp-fusion-of-the-lumbar-spine-evolution-of-a-technique-facilitated-by-changes-in-equipment
#13
Cristian Gragnaniello, Kevin Seex
BACKGROUND: Lateral interbody cages have been proven useful in spinal fusions. Spanning both lateral cortical rims while sparing the Anterior Longitudinal Ligament, the lateral interbody cages restore and maintain disc height while adding stability prior to supplemental fixation. The standard approach for their insertion is by a 90-degree lateral transpsoas method. This is relatively bloodless compared to other techniques although has its limitations, requiring neuro-monitoring and being, at times, very difficult at L4/5 due to iliac crest obstruction or an anterior plexus position...
December 2016: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/28043751/bone-incorporation-of-silicate-substituted-calcium-phosphate-in-2-stage-revision-anterior-cruciate-ligament-reconstruction-a-histologic-and-radiographic-study
#14
Jan von Recum, Johannes Schwaab, Thorsten Guehring, Paul-Alfred Grützner, Marc Schnetzke
PURPOSE: To evaluate the histologic and radiographic outcomes of using silicate-substituted calcium phosphate (Si-CaP) as bone graft substitute for the augmentation of tunnel defects in 2-stage revision anterior cruciate ligament (ACL) reconstruction. METHODS: Forty patients undergoing 2-stage revision ACL reconstruction were included in a prospective, randomized controlled clinical trial between 2012 and 2015. The inclusion criteria were tunnel diameter of the tibial and/or femoral tunnel of 10 mm or greater after failed ACL reconstruction...
December 30, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28040090/masquelet-technique-myth-or-reality-a-systematic-review-and-meta-analysis
#15
Ilaria Morelli, Lorenzo Drago, David A George, Enrico Gallazzi, Sara Scarponi, Carlo L Romanò
INTRODUCTION: The induced membrane technique (IMT) or Masquelet technique, is a two-step surgical procedure used to treat pseudoarthroses and bony defects. Many authors have introduced variants to the technique. This study aims to compare the surgical variants of IMT and to evaluate its efficacy in achieving infection eradication and bone union. METHODS: A systematic review was carried out following the PRISMA guidelines. PubMed and other medical databases were explored using keywords "Masquelet technique" and "induced membrane technique"...
December 2016: Injury
https://www.readbyqxmd.com/read/28038691/strain-in-posterior-instrumentation-resulted-by-different-combinations-of-posterior-and-anterior-devices-for-long-spine-fusion-constructs
#16
Christopher J Kleck, Damian Illing, Emily M Lindley, Andriy Noshchenko, Vikas V Patel, Cameron Barton, Todd Baldini, Christopher M J Cain, Evalina L Burger
STUDY DESIGN: Clinically related experimental study. OBJECTIVE: Evaluation of strain in posterior low lumbar and spinopelvic instrumentation for multilevel fusion resulting from the impact of such mechanical factors as physiologic motion, different combinations of posterior and anterior instrumentation, and different techniques of interbody device implantation. SUMMARY OF BACKGROUND DATA: Currently different combinations of posterior and anterior instrumentation as well as surgical techniques are used for multilevel lumbar fusion...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/28033285/migration-of-titanium-cable-into-spinal-cord-and-spontaneous-c2-and-c3-fusion-case-report-of-possible-causes-of-fatigue-failure-after-posterior-atlantoaxial-fixation
#17
Huibo Li, Jigang Lou, Hao Liu
INTRODUCTION: Atlantoaxial instability is a common and serious injury of the upper cervical spine. Brooks' procedure is widely used to reconstruct the unstable atlantoaxial joint. The migration into spinal cord of titanium cable and spontaneous fusion between C2 and C3 has been little reported and the management of such a patient is difficult. We describe an unusual case of fatigue failure of posterior titanium atlantoaxial cable fixation with migration into the spinal cord and spontaneous fusion between C2 and C3...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28003166/analysis-of-the-fusion-and-graft-resorption-rates-as-measured-by-ct-1-year-after-posterior-cervical-fusion-using-a-cervical-pedicle-screw
#18
Jae Koo Lee, Sang Ku Jung, Young-Seok Lee, Sang Ryong Jeon, Sung Woo Roh, Seung Chul Rhim, Jin Hoon Park
BACKGROUND: We previously showed that cervical pedicle screw placement (CPS) is safe even with the freehand technique. The posterolateral fusion rate 1 year after CPS, as measured by computed tomography (CT), is reported here. The graft resorption rates when different graft materials were used were also analyzed. METHODS: Between 2012- 2015, 93 patients underwent posterior cervical fusion surgery with the CPS from C2 to C7. Of these, 56 patients consented to CT scans immediately and 1 year after surgery...
December 18, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27997507/the-prevalence-and-risk-factors-of-iliac-screw-loosening-after-adult-spinal-deformity-surgery
#19
Tomohiro Banno, Tomohiko Hasegawa, Yu Yamato, Sho Kobayashi, Daisuke Togawa, Shin Oe, Yuki Mihara, Yukihiro Matsuyama
STUDY DESIGN: A retrospective study. OBJECTIVE: We investigated the prevalence of iliac screw loosening and determined risk factors after adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: Lumbosacral fixation is crucial to maintain optimal sagittal alignment. Iliac screws are commonly placed to provide protection for sacral pedicle screws. Radiolucent areas around the screws indicate fixation loss and pseudarthrosis. METHODS: Seventy-two ASD patients (13 men, 59 women; mean age, 69...
December 16, 2016: Spine
https://www.readbyqxmd.com/read/27939913/non-structural-cancellous-bone-graft-and-headless-compression-screw-fixation-for-treatment-of-scaphoid-waist-non-union
#20
S H Han, H J Lee, I T Hong, U Kim, S J Lee
PURPOSE: Scaphoid fracture commonly occurs around the mid-third of the scaphoid, and non-union of this fracture has several treatment options. The authors performed autologous cancellous bone graft from the iliac crest and headless compression screw fixation for the treatment of Mack-Lichtman type II scaphoid waist non-union. The purpose of this study was to determine whether this procedure was effective in achieving bony union and restoration of alignment. METHODS: Medical records and radiographs of 30 patients who underwent cancellous bone graft and headless compression screw fixation for non-union of scaphoid waist fracture were retrospectively reviewed...
December 7, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
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