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https://www.readbyqxmd.com/read/28642653/clinical-application-of-a-drill-guide-template-for-pedicle-screw-placement-in-severe-scoliosis
#1
Xin Li, Yaoshen Zhang, Qiang Zhang, Changsong Zhao, Kun Liu
OBJECTIVE: To evaluate the accuracy and the effect of drill guide template for pedicle screw placement in severe scoliosis. METHOD: Eight patients with rigid scoliosis were enrolled, five males and three females, ranging from nine to 23 years old. A three-dimensional CT scan of the spine was performed and saved as a DICOM file type. The multi-level template was designed by Mimics software and manufactured according to the part of the most severe deformity. The drill template was placed on the corresponding vertebral surface...
March 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28640081/-direct-vision-operation-of-posterior-atlantoaxial-transpedicular-screw-fixation-for-unstable-atlantoaxial-fractures-a-retrospective-study
#2
Liangliang Cao, Erzhu Yang, Jianguang Xu, Xiaofeng Lian, Bin Cai, Xiaokang Liu, Guowang Zhang
BACKGROUND: The posterior screw fixation in atlas via posterior arch and lateral mass, also called C1 "pedicle" screw, combined with C2 pedicle screw fixiation has shown better biomechanical stability in unstable atlantoaxial fractures. However, its popularization has to fulfill the limitation imposed by anatomical characteristics. The aim of this study was to explore the manipulation, effect, and safety of the atlantoaxial transpedicular screw fixation under "direct vision" for the treatment of unstable atlantoaxial fracture...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639580/robot-assisted-percutaneous-pedicle-screw-placement-using-three-dimensional-fluoroscopy-a-preliminary-clinical-study
#3
Wei Tian, Ming-Xing Fan, Ya-Jun Liu
No abstract text is available yet for this article.
July 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28638701/reinnervation-of-denervated-muscle-by-implantation-of-nerve-muscle-endplate-band-graft-to-the-native-motor-zone-of-the-target-muscle
#4
Liancai Mu, Stanislaw Sobotka, Jingming Chen, Themba Nyirenda
INTRODUCTION: Motor endplate reinnervation is critical for restoring motor function of the denervated muscle. We developed a novel surgical technique called nerve-muscle-endplate band grafting (NMEG) for muscle reinnervation. METHODS: Experimentally denervated sternomastoid muscle in the rat was reinnervated by transferring a NMEG from the ipsilateral sternohyoid muscle to the native motor zone (NMZ) of the target muscle. A NMEG pedicle contained a block of muscle (~ 6 × 6 × 3 mm), a nerve branch with axon terminals, and a motor endplate band with numerous neuromuscular junctions...
June 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28637303/management-of-acute-unilateral-nondisplaced-subaxial-cervical-facet-fractures
#5
Aditya Vedantam, Jared Steven Fridley, Jovany Cruz Navarro, Shankar P Gopinath
BACKGROUND: Few studies have focused on the management of patients with nondisplaced cervical facet fractures. OBJECTIVE: To determine the rate of successful nonoperative management and risk factors for instability in patients with acute traumatic, unilateral, nondisplaced cervical facet fractures. METHODS: We reviewed patients with single or multilevel unilateral nondisplaced or minimally displaced subaxial cervical facet fractures between 2008 and 2014...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28637037/surgical-site-infection-after-hepatectomy-for-hepatocellular-carcinoma
#6
Chikara Shirata, Kiyoshi Hasegawa, Takashi Kokudo, Junichi Arita, Nobuhisa Akamatsu, Junichi Kaneko, Yoshihiro Sakamoto, Masatoshi Makuuchi, Norihiro Kokudo
AIMS: To clarify the clinical impact, risk factors, and preventive methods for surgical site infection (SSI) after hepatectomy for hepatocellular carcinoma (HCC). METHODS: We included 879 consecutive patients who underwent hepatectomy for HCC between 2002 and 2011. Univariate and multivariate analyses were conducted to identify the risk factors for incisional and organ/space SSIs. ORs and 95% CIs are reported. RESULTS: The incidences of incisional and organ/space SSIs were 24 (2...
June 21, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/28633648/radiologic-comparison-of-posterior-release-internal-distraction-final-pso-and-spinal-fusion-with-one-stage-posterior-vertebral-column-resection-for-multi-level-severe-congenital-scoliosis
#7
Shichang Liu, Nannan Zhang, Yueming Song, Zongrang Song, Liping Zhang, Jijun Liu, En Xie, Qining Wu, Dingjun Hao
BACKGROUND: To compare radiologic results of posterior release, internal distraction, and final pedicle subtraction osteotomy (PSO) and spinal fusionwith one-stage posterior vertebral column resection (PVCR) in treating multi-level severe congenital scoliosis. METHODS: Forty-onesevere congenital scoliosis patients were used in the study. Group A comprised 24 patients who underwent one-stage PVCR. Group B comprised 17 patients who underwent posterior release with internal distraction, followed by final posterior fusion and instrumentation...
June 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28633248/endobronchial-guided-vascularized-tissue-flaps-for-a-bronchopleural-fistula
#8
Sarah M Elswick, Basel Sharaf, Ziyad S Hammoudeh, Ali I Saeed, Eric S Edell, David E Midthun, Shanda H Blackmon
The management of bronchopleural fistulas can be challenging. The initial treatment is usually conservative, but operative intervention with transposition of vascularized pedicled flaps may be required in refractory cases. We present the case of a 67-year-old man with stage IIIa squamous cell carcinoma of the lung who underwent a lower and middle bilobectomy after receiving neoadjuvant chemoradiation. His postoperative course was complicated by empyema and a bronchopleural fistula. Because of difficulty accessing the fistula, endobronchial-guided vascularized tissue flaps were successfully used to close the fistula...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28632904/ngf-and-fgf-2-promote-reinnervation-by-nerve-muscle-endplate-grafting
#9
Liancai Mu, Stanislaw Sobotka, Jingming Chen, Themba Nyirenda
INTRODUCTION: This study was designed to test whether exogenous application of nerve growth factor (NGF) and basic fibroblast growth factor (FGF-2) to muscles reinnervated with nerve-muscle-endplate band grafting (NMEG) could promote specific outcomes. METHODS: The right sternomastoid muscle in adult rats was experimentally denervated and immediately reinnervated by implanting a NMEG pedicle from the ipsilateral sternohyoid muscle. A fibrin sealant containing NGF and FGF-2 was focally applied to the implantation site...
June 20, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28632564/accuracy-of-percutaneous-pedicle-screw-placement-does-training-level-matter
#10
Evan O Baird, Steven J McAnany, Samuel Overley, Branko Skovrlj, Javier Z Guzman, Sheeraz A Qureshi
STUDY DESIGN: In vitro human cadaveric surgical technique study. OBJECTIVE: To assess the accuracy of percutaneous pedicle screw placement in a human cadaveric model using standard fluoroscopic guidance technique, compared across varying levels of experience. SUMMARY OF BACKGROUND DATA: The current literature varies widely in the reported frequency of facet violation during placement of percutaneous pedicle screws. However, as of yet there are no studies examining the effect that training level has on accuracy of placement...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632552/comparative-study-of-c-arms-for-intraoperative-3-dimensional-imaging-and-navigation-in-minimally-invasive-spine-surgery-part-ii-radiation-exposure
#11
Jan-Helge Klingler, Ronen Sircar, Christian Scheiwe, Evangelos Kogias, Marie T Krüger, Christoph Scholz, Ulrich Hubbe
STUDY DESIGN: A radiation exposure study in vitro. OBJECTIVE: This study aimed to compare the radiation exposure of 2 different 3-dimensional (3D) C-arm devices on an anthropomorphic phantom. SUMMARY OF BACKGROUND DATA: Minimally invasive pedicle screw placement requires intraoperative imaging techniques for visualization of the unexposed spine. Mobile 3D C-arms compose a 3D image data set out of multiple successive fluoroscopic images. METHODS: We compared the 3D C-arm devices Siremobil Iso-C 3D (Siemens Sector Healthcare, Erlangen, Germany) and Vision FD Vario 3D (Ziehm Imaging, Nuremberg, Germany) regarding their radiation exposure...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632549/biomechanical-investigation-of-a-novel-revision-device-in-an-osteoporotic-model-pullout-strength-of-pedicle-screw-anchor-versus-larger-screw-diameter
#12
Jacinto Manon, Mir M Hussain, Jonathan Harris, Mark Moldavsky, Frank La Marca, Brandon S Bucklen
STUDY DESIGN: In vitro cadaveric biomechanical study. OBJECTIVE: To assess revision pullout strength of novel anchored screws (AS) versus conventional larger diameter traditional pedicle screws (TPS) in an osteoporotic model. SUMMARY OF BACKGROUND DATA: Pedicle screws are the most ubiquitous method of treating spinal pathologies requiring lumbar fusion. Although these screws are effective in providing 3-column stabilization of the spine, revision surgeries are occasionally necessary, particularly for geriatric and osteoporotic populations...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632545/computer-assisted-minimally-invasive-transforaminal-lumbar-interbody-fusion-may-be-better-than-open-surgery-for-treating-degenerative-lumbar-disease
#13
Wei Tian, Yun-Feng Xu, Bo Liu, Ya-Jun Liu, Da He, Qiang Yuan, Zhao Lang, Xiao-Guang Han
STUDY DESIGN: This study was a retrospective review of prospectively collected clinical data. OBJECTIVE: To evaluate the clinical and radiologic outcomes of computer-assisted minimally invasive spine surgery transforaminal lumbar interbody fusion (CAMISS-TLIF) and open TLIF for the treatment of 1-level degenerative lumbar disease. SUMMARY OF BACKGROUND DATA: Minimally invasive TLIF is becoming increasingly popular; however, the limited space and high rate of hardware complications associated with this method are challenging to surgeons...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28631190/pedicle-screw-insertion-accuracy-in-terms-of-breach-and-reposition-using-a-new-intraoperative-cone-beam-computed-tomography-imaging-technique-and-evaluation-of-the-factors-associated-with-these-parameters-of-accuracy-a-series-of-695-screws
#14
Virginie Cordemans, Ludovic Kaminski, Xavier Banse, Bernard G Francq, Christine Detrembleur, Olivier Cartiaux
PURPOSE: The goals of this study were to assess the accuracy of pedicle screw insertion using an intraoperative cone beam computed tomography (CBCT) system, and to analyze the factors potentially influencing this accuracy. METHODS: Six hundred and ninety-five pedicle screws were inserted in 118 patients between October 2013 and March 2016. Screw insertion was performed using 2D-fluoroscopy or CBCT-based navigation. Accuracy was assessed in terms of breach and reposition...
June 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28631069/-s2-ala-iliac-screws-for-extended-pelvic-fixation-in-longer-lumbar-instrumentations-description-of-a-freehand-technique
#15
REVIEW
F Lattig, S Weckbach
OBJECTIVE: To reduce the rate of implant failures at the lumbosacral junction in polysegmental lumbar fusions. INDICATIONS: Spinal fusion with deformity correction including L5/S1, revision surgery for pseudoarthrosis L5/S1, screw pull-out and pedicle fractures in S1, and S1/S2 fractures after polysegmental fusions. CONTRAINDICATIONS: Osteosynthesis of complex pelvic ring fractures, tumors of the ilium. Relative contraindication: infection, to avoid contamination of the iliosacral joint...
June 19, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28630019/tunica-vaginalis-pedicle-flap-for-repair-of-ruptured-testis-a-single-center-experience-with-four-patients
#16
R N Damle, J F Lalikos, J T Aidlen, P Ellsworth
Management of testicular rupture with a large tunical defect may not be feasible without excision of viable tissue. This study describes the use of a vascularized tunica vaginalis flap, without debridement of viable tissue, in four adolescents. Postoperative ultrasound showed good blood flow and 80% volume of the contralateral testis in two cases. Postoperative exam revealed normal exam and ultrasonographic appearance in three patients, the fourth was demonstrated to be small and undescended during evaluation of contralateral testicular torsion...
May 24, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28628501/comparison-of-donor-site-drainage-duration-and-seroma-rate-between-latissimus-dorsi-musculocutaneous-flaps-and-thoracodorsal-artery-perforator-flaps
#17
Masaki Arikawa, Shimpei Miyamoto, Masahide Fujiki, Takuya Higashino, Azusa Oshima, Minoru Sakuraba
INTRODUCTION: Donor site seroma formation and prolonged drainage duration are common complications of using latissimus dorsi musculocutaneous (LDMC) flaps. The present retrospective study aimed to investigate the effect of types of back flap harvest on drainage duration and seroma formation rates. METHODS: Adult patients (n = 155) who underwent reconstruction with a latissimus dorsi flap from January 2010 to October 2015 were included in the study, of which 54 patients underwent breast reconstruction with a pedicled LDMC flap (LD breast group), 80 patients underwent an LDMC flap transfer for purposes other than breast reconstruction (LD nonbreast group), and 21 patients underwent soft tissue reconstruction with a thoracodorsal artery perforator (TAP) flap (TAP group)...
June 16, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28628156/-atlantoaxial-reduction-and-fixation-guided-by-the-intraoperative-ct
#18
(no author information available yet)
OBJECTIVE: To evaluate the clinical result of atlantoaxial reduction and fixation guided by the intraoperative CT. METHODS: Sixteen cases were retrospectively studied, including seven males and nine females, with the mean age of 49.9 years. Twelve cases were diagnosed as chronic atlantoaxial instability or dislocation, while four cases as acute odontoid fracture and dislocation. Among the sixteen cases, fourteen underwent atlantoaxial fusion, while two underwent temporary atlantoaxial fixation without fusion...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28627954/reliability-analysis-of-cobb-measurement-in-degenerative-lumbar-scoliosis-using-endplate-versus-pedicle-as-bony-landmarks
#19
Jing Guo, Xian-Chao Deng, Qin-Jie Ling, Zhi-Xun Yin, Er-Xing He
OBJECTIVES: Degenerative changes of endplates in older patients and tilting of vertebral body in lumbosacral lordosis could make an accurate identification of endplates for the Cobb measurement difficult. Pedicles have been proposed as alternative landmarks because they are usually better visualized, and offer similar clinical validity to the endplates. The objective of this study was to investigate the reliability of the pedicle method of Cobb measurement in degenerative lumbar scoliosis and compare it with the traditional endplate method...
June 21, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28627343/-study-on-the-role-of-autophagy-in-heme-oxygenase-1-preventing-hepatic-ischemia-reperfusion-injury-in-rats
#20
Sheng Lan, Jintai Li, Yi Liu
OBJECTIVE: To identify the role of autopahgy in the protective mechanism of heme oxygenase 1 (HO-1) against hepatic ischemia/reperfusion (I/R) injury. METHODS: Forty healthy male Sprague-Dawley (SD) rats were randomly (random number table) divided into five groups (n = 8 in each group), namely sham group, model group, cobalt protoporphyrin (CoPP) group, zinc protoporphyrin (ZnPP) group and 6-amino-3-methylpurine (3-MA) group. Partial hepatic I/R model was established by clamping the pedicles of left and median lobes for 1 hour and reopening for 6 hours in rats, and the rats in sham group were only received celiotomp without hepatic I/R...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
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