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Dynamic interbody fusion

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https://www.readbyqxmd.com/read/29145437/assessment-of-the-suitability-of-biodegradable-rods-for-use-in-posterior-lumbar-fusion-an-in-vitro-biomechanical-evaluation-and-finite-element-analysis
#1
Fon-Yih Tsuang, Yueh-Ying Hsieh, Yi-Jie Kuo, Chia-Hsien Chen, Feng-Huei Lin, Chen-Sheng Chen, Chang-Jung Chiang
Interbody fusion with posterior instrumentation is a common method for treating lumbar degenerative disc diseases. However, the high rigidity of the fusion construct may produce abnormal stresses at the adjacent segment and lead to adjacent segment degeneration (ASD). As such, biodegradable implants are becoming more popular for use in orthopaedic surgery. These implants offer sufficient stability for fusion but at a reduced stiffness. Tailored to degrade over a specific timeframe, biodegradable implants could potentially mitigate the drawbacks of conventional stiff constructs and reduce the loading on adjacent segments...
2017: PloS One
https://www.readbyqxmd.com/read/29125430/cortical-bone-trajectory-screw-fixation-versus-traditional-pedicle-screw-fixation-for-2-level-posterior-lumbar-interbody-fusion-comparison-of-surgical-outcomes-for-2-level-degenerative-lumbar-spondylolisthesis
#2
Hironobu Sakaura, Toshitada Miwa, Tomoya Yamashita, Yusuke Kuroda, Tetsuo Ohwada
OBJECTIVE The cortical bone trajectory (CBT) screw technique is a new nontraditional pedicle screw (PS) insertion method. However, the biomechanical behavior of multilevel CBT screw/rod fixation remains unclear, and surgical outcomes in patients after 2-level posterior lumbar interbody fusion (PLIF) using CBT screw fixation have not been reported. Thus, the purposes of this study were to examine the clinical and radiological outcomes after 2-level PLIF using CBT screw fixation for 2-level degenerative lumbar spondylolisthesis (DS) and to compare these outcomes with those after 2-level PLIF using traditional PS fixation...
November 10, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28966154/comparative-study-of-cortical-bone-trajectory-pedicle-screw-cortical-screw-versus-conventional-pedicle-screw-in-single-level-posterior-lumbar-interbody-fusion-a-2-year-post-hoc-analysis-from-prospectively-randomized-data
#3
Gun Woo Lee
OBJECTIVE: The aim of this study was to report 2-year follow-up outcomes of posterior lumbar interbody fusion (PLIF) with cortical bone trajectory-pedicle screw (CS), in terms of fusion rates, clinical outcomes, surgical outcomes, and complications, and to compare these outcomes with outcomes for PLIF with conventional pedicle screw (PS). METHODS: We enrolled 79 patients and randomly assigned them to 2 groups (group A with PS, 39 patients; group B with CS, 40 patients), and finally 37 and 35 in group A and B were analyzed in the study...
September 28, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28960818/biomechanical-stability-analysis-of-a-stand-alone-cage-static-and-rotational-dynamic-plate-in-a-two-level-cervical-fusion-construct
#4
Parmenion P Tsitsopoulos, Leonard I Voronov, Michael R Zindrick, Gerard Carandang, Robert M Havey, Alexander J Ghanayem, Avinash G Patwardhan
OBJECTIVE: To test the following hypotheses: (i) anterior cervical discetomy and fusion (ACDF) using stand-alone interbody spacers will significantly reduce the range of motion from intact spine; and (ii) the use of a static or a rotational-dynamic plate will significantly augment the stability of stand-alone interbody spacers, with similar beneficial effect when compared to each other. METHODS: Eleven human cadaveric subaxial cervical spines (age: 48.2 ± 5.4 years) were tested under the following sequence: (i) intact spine; (ii) ACDF at C4 -C5 using a stand-alone interbody spacer; (iii) ACDF at C5 -C6 and insertion of an interbody spacer (two-level construct); and (iv) randomized placement of either a two-level locking static plate or a rotational-dynamic plate...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28944950/comparison-of-unilateral-versus-bilateral-pedicle-screw-fixation-in-transforaminal-lumbar-interbody-fusion-for-single-level-lumbar-degenerative-diseases-and-review-of-literature
#5
Hasan Serdar Işik, Özerk Okutan, Timur Yildirim, Elif Akpinar, Ali Yilmaz
AIM: There are some recognized treatment modalities in the literature for the treatment of lumbar degenerative diseases,which cause pain and avoidance of daily life activities for the patients.The most widely accepted algorithm in the literature is medical treatment,physical therapy and minimally invasive pain-relieving therapies,if necessary,followed by surgical interventions.The common procedure used in neurosurgery practice is the decompression of neural elements followed by fusion...
July 30, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28861199/the-efficacy-of-vitamin-c-on-postoperative-outcomes-after-posterior-lumbar-interbody-fusion-a-randomized-placebo-controlled-trial
#6
Gun Woo Lee, Han Seok Yang, Jin S Yeom, Myun-Whan Ahn
BACKGROUND: Vitamin C has critical features relavant to postoperative pain management and functional improvement; however, no study has yet evaluated the effectiveness of vitamin C on improving the surgical outcomes for spine pathologies. Thus, this study aimed to explore the impact of vitamin C on postoperative outcomes after single-level posterior lumbar interbody fusion (PLIF) for lumbar spinal stenosis in prospectively randomized design. We conducted a 1-year prospective, randomized, placebo-controlled, double-blind study to evaluate the impact of vitamin C on the postoperative outcomes after PLIF surgery...
September 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28817158/characteristics-and-efficacy-of-a-new-3-dimensional-printed-mesh-structure-titanium-alloy-spacer-for-posterior-lumbar-interbody-fusion
#7
Sung-Soo Chung, Kyung-Joon Lee, Yoo-Beom Kwon, Kyung-Chung Kang
This study evaluated the characteristics of a newly developed 3-dimensional printed mesh structure titanium spacer and its efficacy for posterior lumbar interbody fusion. Posterior lumbar interbody fusion with this spacer was performed at 53 segments (40 patients; mean age, 64 years; range, 51-73 years). Data were collected prospectively. Radiographic characteristics were analyzed with changes in interbody height, instability of the segments, formation of bone bridges around the implants, and pseudarthrosis, as determined by dynamic radiographs and postoperative computed tomography scans...
September 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/28728587/minimally-invasive-unilateral-pedicle-screws-and-a-translaminar-facet-screw-fixation-and-interbody-fusion-for-treatment-of-single-segment-lower-lumbar-vertebral-disease-surgical-technique-and-preliminary-clinical-results
#8
Peng Huang, Yiguo Wang, Jiao Xu, Bo Xiao, Jianheng Liu, Luyang Che, Keya Mao
BACKGROUND: Conventional open transforaminal lumbar interbody fusion (TLIF) using unilateral pedicle screws and a translaminar facet screw has been performed for many years with good results. The outcomes of minimally invasive TLIF (MIS TLIF) are similar to the good outcomes of open TLIF, with the additional benefits of reducing iatrogenic injury, shortening hospital stays, and reducing the recovery duration. Instead of using small cuts on both sides, we performed MIS TLIF through a single cut using unilateral pedicle screws and a translaminar facet screw...
July 20, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28661265/medium-term-effects-of-dynesys-dynamic-stabilization-versus-posterior-lumbar-interbody-fusion-for-treatment-of-multisegmental-lumbar-degenerative-disease
#9
Haiting Wu, Qingjiang Pang, Guoqiang Jiang
Objective To compare the medium-term clinical and radiographic outcomes of Dynesys dynamic stabilization and posterior lumbar interbody fusion (PLIF) for treatment of multisegmental lumbar degenerative disease. Methods Fifty-seven patients with multisegmental lumbar degenerative disease underwent Dynesys stabilization (n = 26) or PLIF (n = 31) from December 2008 to February 2010. The mean follow-up period was 50.3 (range, 46-65) months. Clinical outcomes were evaluated using a visual analogue scale (VAS) and the Oswestry disability index (ODI)...
January 1, 2017: Journal of International Medical Research
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
#10
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/28525492/degenerative-cervical-disc-disease-long-term-changes-in-sagittal-alignment-and-their-clinical-implications-after-cervical-interbody-fusion-cage-subsidence-a-prospective-study-with-standalone-lordotic-tantalum-cages
#11
Félix Tomé-Bermejo, Julián A Morales-Valencia, Javier Moreno-Pérez, Juan Marfil-Pérez, Elena Díaz-Dominguez, Angel R Piñera, Luis Alvarez
STUDY DESIGN: A retrospective, observational study of prospectively collected outcomes. OBJECTIVE: To investigate the long-term clinical course of anterior cervical discectomy and fusion with interbody fusion cages (ACDF-IFC) with lordotic tantalum implants and to correlate the radiologic findings with the clinical outcomes, with special emphasis on the significance and the influence of implant subsidence. SUMMARY OF BACKGROUND DATA: Cage subsidence is the most frequently reported complication after ACDF-IFC...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28446192/prospective-clinical-and-radiographic-evaluation-of-an-allogeneic-bone-matrix-containing-stem-cells-trinity-evolution%C3%A2-viable-cellular-bone-matrix-in-patients-undergoing-two-level-anterior-cervical-discectomy-and-fusion
#12
Timothy A Peppers, Dennis E Bullard, Jed S Vanichkachorn, Scott K Stanley, Paul M Arnold, Erik I Waldorff, Rebekah Hahn, Brent L Atkinson, James T Ryaby, Raymond J Linovitz
BACKGROUND: Trinity Evolution® (TE), a viable cellular bone allograft, previously demonstrated high fusion rates and no safety-related concerns after single-level anterior cervical discectomy and fusion (ACDF) procedures. This prospective multicenter clinical study was performed to assess the radiographic and clinical outcomes of TE in subjects undergoing two-level ACDF procedures. METHODS: In a prospective, multicenter study, 40 subjects that presented with symptomatic cervical degeneration at two adjacent vertebral levels underwent instrumented ACDF using TE autograft substitute in a polyetherethereketone (PEEK) cage...
April 26, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28394774/the-impact-of-l5-sacralization-on-fusion-rates-and-clinical-outcomes-after-single-level-posterior-lumbar-interbody-fusion-plif-at-l4-l5-level
#13
Gun Woo Lee, Ji-Hoon Shin, Seung Min Ryu, Myun-Whan Ahn
STUDY DESIGN: Retrospective review of prospectively collected data. OBJECTIVE: To determine the impact of L5 sacralization on fusion rates and clinical outcomes after single-level posterior lumbar interbody fusion (PLIF) surgery at the L4-L5 level. SUMMARY OF BACKGROUND DATA: L5 sacralization can produce greater stress concentration at the adjacent segment (L4-L5); therefore, L4-L5 PLIF surgery in patients with L5 sacralization may negatively affect fusion rate and be associated with poor clinical outcomes...
April 7, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28382392/porous-silicon-nitride-spacers-versus-peek-cages-for-anterior-cervical-discectomy-and-fusion-clinical-and-radiological-results-of-a-single-blinded-randomized-controlled-trial
#14
Mark P Arts, Jasper F C Wolfs, Terry P Corbin
PURPOSE: Anterior cervical discectomy with fusion is a common procedure for treating radicular arm pain. Polyetheretherketone (PEEK) plastic is a frequently used material in cages for interbody fusion. Silicon nitride is a new alternative with desirable bone compatibility and imaging characteristics. The aim of the present study is to compare silicon nitride implants with PEEK cages filled with autograft harvested from osteophytes. METHODS: The study is a prospective, randomized, blinded study of 100 patients with 2 years follow-up...
April 5, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28244906/role-of-weekly-teriparatide-administration-in-osseous-union-enhancement-within-six-months-after-posterior-or-transforaminal-lumbar-interbody-fusion-for-osteoporosis-associated-lumbar-degenerative-disorders-a-multicenter-prospective-randomized-study
#15
RANDOMIZED CONTROLLED TRIAL
Shigeto Ebata, Jun Takahashi, Tomohiko Hasegawa, Keijiro Mukaiyama, Yukihiro Isogai, Tetsuro Ohba, Yosuke Shibata, Toshiyuki Ojima, Zentaro Yamagata, Yukihiro Matsuyama, Hirotaka Haro
BACKGROUND: For elderly patients, posterior lumbar interbody fusion (PLIF) or transforaminal lumbar interbody fusion (TLIF) is usually performed to treat lumbar degenerative diseases. However, some patients exhibit pseudarthrosis following such procedures. The anabolic agent teriparatide is an approved treatment for promoting bone formation in osteoporotic patients. Our multicenter, prospective randomized study assessed the role of once-weekly teriparatide administration on patient outcomes following interbody fusion...
March 1, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28241723/-efficacy-of-coflex-in-the-treatment-of-lumbar-spondylolisthesis
#16
RANDOMIZED CONTROLLED TRIAL
Y Hai, X L Meng, D Y Li, X N Zhang, Y S Wang
Objective: To study the clinical results of Coflex and lumbar posterior decompression and fusion in the treatment of lumbar degenerative spondylolisthesis at L(4-5). Methods: Thirty-eight patients with Grade Ⅰ degenerative spondylolisthesis, from January 2008 to December 2011 in Beijing Chaoyang Hospital, Capital Medical University were reviewed, and patients were divided into two groups by randomness. Group A was treated with Coflex and group B with pedicle instrumentation and interbody fusion. Fifteen patients were included in group A, and 23 patients were included in group B...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28124550/the-unfeasible-made-feasible-lumbar-minimally-invasive-hybrid-stabilization-with-dynamic-rod-and-mini-open-tlif
#17
Giuseppe M Barbagallo, Francesco Certo
BACKGROUND: Posterior dynamic stabilization of the lumbar spine is spreading as a viable alternative to spinal fusion, aiming to achieve an equally satisfactory clinical outcome without making the spine completely rigid. We describe the feasibility of a minimally invasive surgical technique used to implant a hybrid system and perform a mini-open (m-open) transforaminal lumbar interbody fusion (TLIF) in patients suffering from degenerative spondylolistesis and adjacent level's degenerative disc disease (DDD)...
January 26, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28107234/comparison-between-acrylic-cage-and-polyetheretherketone-peek-cage-in-single-level-anterior-cervical-discectomy-and-fusion-a-randomized-clinical-trial
#18
Majid R Farrokhi, Zahra Nikoo, Mehrnaz Gholami, Khadijeh Hosseini
STUDY DESIGN: Prospective, single-blind randomized-controlled clinical study. OBJECTIVE: To compare polyetheretherketone (PEEK) cage with a novel Acrylic cage to find out which fusion cage yielded better clinical outcomes following single-level anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: ACDF is considered a standard neurosurgical treatment for degenerative diseases of cervical intervertebral disks. There are many options, including bone grafts, bone cement, and spacers made of titanium, carbon fiber, and synthetic materials, used to restore physiological disk height and enhance spinal fusion, but the ideal device, which would provide immediate structural support and subsequent osteointegration and stability, has not been identified yet...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28043848/surgical-treatment-of-degenerative-spondylolisthesis
#19
REVIEW
P Guigui, E Ferrero
Degenerative spondylolisthesis is a common pathology, often causing lumbar canal stenosis. There is, however, no strong consensus regarding the various medical and surgical treatments available. Surgery is indicated mainly for perceived functional impairment; when the indication is accepted, several questions determine the choice of surgical strategy. Improvement in neurological symptoms is one of the main treatment objectives. For this, it is useful to perform radicular decompression. Some authors recommend indirect decompression by interbody fusion (ALIF, TLIF, XLIF), others by means of an interspinous spacer but the most frequent technique is direct posterior decompression...
February 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27623301/cross-sectional-area-of-the-lumbar-spine-trunk-muscle-and-posterior-lumbar-interbody-fusion-rate-a-retrospective-study
#20
Man Kyu Choi, Sung Bum Kim, Chang Kyu Park, Hridayesh P Malla, Sung Min Kim
STUDY DESIGN: A retrospective study. OBJECTIVE: To investigate the relationship between trunk muscle cross-sectional area (MCSA) and fusion rate after posterior lumbar interbody fusion using pedicle screw fixation (PLIF-PSF). SUMMARY OF BACKGROUND DATA: Although trunk muscles of the lumbar spine contribute to spinal stability and alignment, effect of trunk muscles on spinal fusion rate and time to fusion is unclear. METHODS: A total of 192 adult patients with degenerative lumbar disease who underwent PLIF-PSF at L3-L4 or L4-L5 were included...
July 2017: Clinical Spine Surgery
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