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Sacroiliac screw

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https://www.readbyqxmd.com/read/28416838/-clinical-research-on-robot-assisted-percutaneous-pelvic-and-acetabular-screws-surgery
#1
C P Zhao, J Q Wang, Y G Su, W Han, L Zhou, M Y Wang
OBJECTIVE: To evaluate the security and efficiency of a surgical robotic assisted percutaneous screw fixation for the treatment of pelvic and acetabular fractures. METHODS: In the study, 12 patients with pelvic and acetabular fractures who were treated in Beijing Jishuitan Hospital from January to April in 2016 were involved in this research. The research subjects were randomly divided into two groups: the experimental group and the control group. Robotic-assisted percutaneous sacroiliac screw internal fixations were performed under the guidance of fluoroscopy navigation in the experimental group; in the control group, doctors operated manually guided by fluoroscopy...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28409337/surgical-considerations-with-the-operative-fixation-of-unstable-paediatric-pelvic-ring-injuries
#2
Mohamed Kenawey
INTRODUCTION: The operative treatment of unstable pelvic injuries in paediatrics is not frequently indicated. The detailed modes of pelvic ring failure, surgical techniques, fixation choices, and peri-operative difficulties are not well reported. METHODS: From September 2010 to March 2016, 62 paediatric patients were admitted to an academic level I trauma center with the diagnosis of pelvic ring injury. Of them, 29 (17 males and 12 females) had operative fixation of unstable pelvic injuries...
April 13, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28391395/biomechanical-analysis-of-anterior-ring-fixation-of-the-ramus-in-type-c-pelvis-fractures
#3
S McLachlin, M Lesieur, D Stephen, H Kreder, C Whyne
PURPOSE: This biomechanical study compared the stability of four different ramus fracture fixation methods for Type C pelvic ring injuries in the absence of posterior fixation. METHODS: A 5-mm vertical osteotomy of the mid-superior and inferior pubic ramus was created in 12 synthetic pelvic models. Four surgical constructs were compared: (1) two-pin AIIS external fixation, (2) 3.5-mm reconstruction plating, (3) bicortical, fully threaded 3.5-mm, and (4) 6.5-mm pubic ramus screws...
April 8, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28377863/surgical-revision-after-sacroiliac-joint-fixation-or-fusion
#4
Katie Spain, Timothy Holt
BACKGROUND: Minimally invasive sacroiliac joint (SIJ) fusion has been shown to be safe and effective for the treatment of SIJ dysfunction. Multiple devices are available to perform SIJ fixation or fusion. Surgical revision rates after these procedures have not been directly compared. METHODS: We retrospectively identified all patients in our practice who underwent SIJ fixation or fusion between 2003 and 2015. Using both chart review and focused contact with individual patients, we determined the likelihood of surgical revision...
2017: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/28357493/intra-operative-multi-dimensional-fluoroscopy-of-guidepin-placement-prior-to-iliosacral-screw-fixation-for-posterior-pelvic-ring-injuries-and-sacroiliac-dislocation-an-early-case-series
#5
James C Shaw, Milton L Chip Routt, Joshua L Gary
PURPOSE: Traditional fluoroscopic techniques during percutaneous fixation of the posterior pelvic ring at times cannot adequately visualize errant or malpositioned iliosacral screws. Intra-operative fluoroscopic techniques have been advanced using multi-dimensional fluoroscopy to generate computed tomography-like images. This provides the surgeon not only the ability to assess iliosacral screw placement, but also the opportunity to assess reduction. We present a case series of four patients in which the Ziehm RFD multi-dimensional fluoroscopy was used to assess reduction and guidepin placement prior to definitive iliosacral screw fixation...
March 29, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28306517/biomechanical-analysis-of-stiffness-and-fracture-displacement-after-using-pmma-augmented-sacroiliac-screw-fixation-for-sacrum-fractures
#6
Andreas Höch, Richard Schimpf, Niels Hammer, Stefan Schleifenbaum, Michael Werner, Christoph Josten, Jörg Böhme
Cement augmentation of pedicle screws is the gold standard for the stabilization of osteoporotic fractures of the spine. In-screw cement augmentation, in which cement is injected through the cannula, is another option for fracture stabilization of fragility fractures of the sacrum. However, biomechanical superiority of this technique compared to conventional sacroiliac screw fixation has not been tested. The present study compares the stability of cement-augmented and non-cement-augmented sacroiliac screw fixation in osteoporotic sacrum fractures under cyclic loading...
March 15, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28247976/bilateral-sacroiliac-luxation-fixation-using-a-single-transiliosacral-pin-surgical-technique-and-clinical-outcomes-in-eight-cats
#7
A Parslow, D J Simpson
OBJECTIVES: A very limited safe anatomical window for transiliosacral implant placement exists in cats (<0·5 cm 2 ). Lag screw fixation requires multiple bilateral implants thus increasing the risk of iatrogenic trauma and implant interference. We describe a safe and effective method for bilateral sacroiliac fixation in cats using a single implant to minimise inadvertent iatrogenic damage to local structures and restore pelvic canal diameter. MATERIALS AND METHODS: Eight cats underwent surgical fixation for traumatic bilateral sacroiliac luxation using a single smooth intramedullary pin...
March 1, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28243380/patient-reported-outcomes-from-sacroiliac-joint-fusion
#8
Vamsi K Kancherla, Shane M McGowan, Brittany N Audley, Gbolabo Sokunbi, Steven T Puccio
STUDY DESIGN: Retrospective, case series. PURPOSE: The purpose of this study is to determine morbidity, complications, and patient reported outcomes from minimally invasive sacroiliac joint (SIJ) fusion. OVERVIEW OF LITERATURE: Lumbar back pain emanating from the SIJ can be surgically treated via a percutaneous approach in the appropriately selected patient with minimal morbidity and acceptable functional outcomes. METHODS: Patients diagnosed by >2 physical examination maneuvers and subjective relief from a computed tomography-guided lidocaine-bupivacaine-steroid injection underwent SIJ fusion after failing conservative management with a combination of oral anti-inflammatory medications, physical therapy, and pelvic belt stabilization...
February 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28242066/insertion-of-psoas-minor-tendon-at-pelvic-brim-a-novel-anatomic-landmark-for-extra-articular-screw-placement-through-stoppa-approach
#9
Ruipeng Zhang, Zhiyong Hou, Liping Zhang, Yingchao Yin, Wei Chen, Yingze Zhang
BACKGROUND: The psoas minor partially inserted to the superior pelvic brim. And the plate used to fix the acetabular fracture has always been positioned at the pelvic brim after reduction through the Stoppa approach. However, there are few studies depicting the clinical significance of the psoas minor. The purpose of this paper was to explore the relationship between the insertion of the psoas minor tendon at the pelvic brim (IPMTPB) and screw placement through the Stoppa approach. MATERIALS AND METHODS: Fifteen cadavers were dissected for adequate exposure to IPMTPB in our study...
February 21, 2017: Injury
https://www.readbyqxmd.com/read/28216399/minimally-invasive-sacroiliac-joint-fusion-using-a-novel-hydroxyapatite-coated-screw-preliminary-1-year-clinical-and-radiographic-results-of-a-2-year-prospective-study
#10
Louis H Rappoport, Ingrid Y Luna, Gita Joshua
OBJECTIVE: Proper diagnosis and treatment of sacroiliac joint (SIJ) pain remains a clinical challenge. Dysfunction of SIJ can produce pain in the lower back, buttocks, and extremities. Triangular titanium implants for minimally invasive surgical arthrodesis have been available for several years with reputed high levels of success and patient satisfaction. This study reports on a novel hydroxyapatite-coated screw for surgical treatment of SIJ pain. METHODS: Data were prospectively collected on 32 consecutive patients who underwent minimally invasive SIJ fusion with a novel hydroxyapatite-coated screw...
February 16, 2017: World Neurosurgery
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
#11
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/28107243/robotic-guidance-for-s2-alar-iliac-screws-in-spinal-deformity-correction
#12
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
#13
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
#14
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/27858725/2-year-clinical-results-of-patients-with-sacroiliac-joint-syndrome-treated-by-arthrodesis-using-a-triangular-implant-system
#15
Rahel Bornemann, Philip P Roessler, Andreas Strauss, Kirsten Sander, Yorck Rommelspacher, Dieter C Wirtz, Robert Pflugmacher, Sönke P Frey
BACKGROUND: Sacroiliac joint (SIJ) syndrome can cause various symptoms and may also be one reason for persistent low back pain, especially in patients with prior spinal fusions. If conservative treatments fail to improve symptoms, arthrodesis surgery can be considered. Minimally invasive approaches have emerged recently providing a good alternative to conventional methods. A novel triangular implant system (iFuse) can achieve an arthrodesis of the SIJ without the use of additional screws or bone material...
November 4, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27849110/evaluation-of-the-use-of-intra-operative-radiology-for-open-placement-of-lag-screws-for-the-stabilization-of-sacroiliac-luxation-in-cats
#16
Francisco Silveira, Robert J Quinn, Anna M Adrian, Martin R Owen, Mark A Bush
OBJECTIVES: To assess the effect of intra-operative radiology on the quality of lag screw insertion for the management of sacroiliac joint luxations in cats. METHODS: In this retrospective single-centre study, the surgical, anaesthetic and imaging records of 40 screws (32 cats) placed with lag effect for management of sacroiliac luxation were reviewed. Postoperative radiographs were assessed for sacroiliac joint reduction, screw position, and sacral width purchased by each screw...
January 16, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/27847854/spinopelvic-fixation-of-sacroiliac-joint-fractures-and-fracture-dislocations-a-clinical-8-years-follow-up-study
#17
Mohammad R Sobhan, Seyed Mohammad J Abrisham, Mahmood Vakili, Saeed Shirdel
BACKGROUND: Pelvic ring injuries and sacroiliac dislocations have significant impacts on patient's quality of life. Several techniques have been described for posterior pelvic fixation. The current study has been designed to evaluate the spinopelvic method of fixation for sacroiliac fractures and fracture-dislocations. METHODS: Between January 2006 and December 2014, 14 patients with sacroiliac joint fractures, dislocation and fracture-dislocation were treated by Spinopelvic fixation at Shahid Sadoughi Training Hospital, Yazd, Iran...
October 2016: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/27810321/safe-zone-for-transacetabular-screw-fixation-using-a-kerboull-cross-plate-a-ct-scan-templating-prospective-study
#18
T Ohmori, T Kabata, Y Kajino, K Hasegawa, D Inoue, H Tsuchiya
BACKGROUND: Implantation of Kerboull acetabular reinforcement cross-plates (Kerboull plate) carries a risk for injury to vascular structures and pelvic organs. To our knowledge, there is no study assessing anatomical assessment related to this risk with this specific design. Therefore, we performed a prospective study to answer the following four questions: 1) What is the minimum distance and angle between the plate and iliac vessels? 2) What is the distance between the plate and the inner cortex of the ilium? 3) What is the ratio of views with muscle tissue present on the inner surface of the ilium? 4) What are the boundaries of the safe zone for transacetabular screw fixation for a Kerboull plate? HYPOTHESIS: A safe zone for fixation screws would be defined by a narrow range of insertion angles...
December 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27795765/-surgical-management-of-sacroiliac-joint-lesions-in-unstable-pelvic-ring-fractures-using-percutaneous-iliosacral-screw-fixation
#19
Mohamed Amine Karabila, Ismail Hmouri, Tarik Madani, Younes Mhamdi, Mohamed Azouz, Mohamed Kharmaz, Mohamed Ouadaghiri, Moulay Omar Lamrani, Abdou Lahlou, Ahmed Bardouni, Mustapha Mahfoud, Mohamed Saleh Berrada, Christian Vasile
Pelvic fractures, usually are multiple, unstable fractures occuring most frequently due to violent traumatic events. Orthopedic treatment of these lesions is often distressing both to patients and medical personnel since it requires bed discharge or sometimes tractions which can have a duration up to 45 days and can compromise the static and the walking mechanisms; open operative management is difficult, carrying a significant burden in terms of morbidity and associated with vascular (venous plexus), nervous (sacred roots) or septic risk to take into account...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27749563/the-biomechanical-advantages-of-bilateral-lumbo-iliac-fixation-in-unilateral-comminuted-sacral-fractures-without-sacroiliac-screw-safe-channel-a-finite-element-analysis
#20
Wenhao Song, Dongsheng Zhou, Yu He
BACKGROUND: The aim of this study was to compare the biomechanical characteristics between bilateral and unilateral lumbo-iliac fixation in unilateral comminuted sacral fractures (USF) by finite element analysis. METHODS: A 3-dimensional finite element model of unilateral sacral fractures was simulated. Three kinds of implants were instrumented into the model, including the unilateral lumbopelvic fixation (ULF), bilateral lumbopelvic fixation (BLF), and unilateral iliac fixation with bilateral lumbar pedicle screws (UBF)...
October 2016: Medicine (Baltimore)
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