Technique, Strategy and Indication in Posterior Spine Approaches: Hybrid Construct

2017 ◽  
Author(s):  
Jean-Paul Steib
Keyword(s):  
Posterior Spine ◽  
Hybrid Construct

Tropical Modernity: A Hybrid-Construct in South China

2020 ◽  
pp. 56-61
Author(s):  
Rui Leão ◽  
Charles Lai
Keyword(s):  
Hong Kong ◽  
Middle East ◽  
East Africa ◽  
South China ◽  
Climate Adaptation ◽  
Preliminary Survey ◽  
Local Identity ◽  
Hybrid Construct ◽  
British Colonial ◽  
Post War

Parallel to the discourse of Tropical Architecture and the work of UK architects in the British colonial territories in the Middle East, Africa, and India after the WWII, climate adaptation designs or devices such as brise-soleil, perforated cement bricks, sun shading screens, courtyards, etc., started to emerge in modernist buildings in Asia. This article is a preliminary survey of these cases in Hong Kong and Macau since the 1950s. It discusses how tropicality was used in response to the post-war revisionism of Modern Movement that placed emphasis on local identity and culture.

Hidden blood loss during posterior spine fusion surgery

2013 ◽  
Vol 13 (8) ◽  
pp. 877-881 ◽  
Author(s):  
Yossi Smorgick ◽  
Kevin C. Baker ◽  
Casey C. Bachison ◽  
Harry N. Herkowitz ◽  
David M. Montgomery ◽  
...  
Keyword(s):  
Blood Loss ◽  
Spine Fusion ◽  
Fusion Surgery ◽  
Hidden Blood Loss ◽  
Posterior Spine

Motion Preservation in the Anterior and Posterior Spine

Spine ◽  
2018 ◽  
Vol 43 ◽  
pp. S1-S2
Author(s):  
Hans-Joachim Wilke
Keyword(s):  
Motion Preservation ◽  
Posterior Spine

scholarly journals Goniadella bobrezkii (Annenkova, 1929) (Annelida, Polychaeta): first record in the Italian waters

Check List ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 125-130
Author(s):  
Emanuele Mancini ◽  
Francesco Tiralongo ◽  
Daniele Ventura ◽  
Andrea Bonifazi
Keyword(s):  
Mediterranean Sea ◽  
First Record ◽  
Posidonia Oceanica ◽  
Posterior Spine ◽  
The Mediterranean ◽  
Italian Coasts

Goniadella bobrezkii (Annenkova, 1929) is a small goniadid worm identifiable by the number of anterior uniramous parapodia and by the position of the posterior spine-like notochetae arising dorsal to dorsal cirri. Although it was already reported in the Mediterranean Sea, it has never been found in the Italian waters. This study represents the first generic and specific record of G. bobrezkii along Italian coasts. A total of 25 specimens were collected in a Posidonia oceanica (L.) Delile bed, depth of 7 m, off Civitavecchia (Rome).

scholarly journals Hybrid versus Total Sublaminar Wires in Patients With Spinal Muscular Atrophy Undergoing Scoliosis Surgery

2021 ◽  
Author(s):  
Shih-Hsiang Chou ◽  
Wen-Wei Li ◽  
Cheng-Chang Lu ◽  
Kun-Ling Lin ◽  
Sung-Yen Lin ◽  
...  
Keyword(s):  
Spinal Muscular Atrophy ◽  
Pedicle Screw ◽  
Muscular Atrophy ◽  
Deformity Correction ◽  
Vertebral Rotation ◽  
Major Curve ◽  
Apical Vertebral Rotation ◽  
Hybrid Instrumentation ◽  
Hybrid Construct

Abstract BackgroundEarly versions of spinal muscular atrophy (SMA) scoliosis correction surgeries often involved sublaminar devices. Recently the utilization of pedicle screw is gaining much popularity. Pedicle screw generally believed to provide additional deformity correction, but pedicle size and rotational deformity limit the application of pedicle screw in the thoracic spine, resulting in a hybrid construct of the pedicle screw and sublaminar wire. Studies of the efficacy of hybrid instrumentation in SMA scoliosis is often limited by the scarcity of the disease itself. In this study, we aimed to compare the surgical outcome of using hybrid constructs of the pedicle screw and sublaminar wire and that of sublaminar wire alone in patients with SMA scoliosis.MethodsWe retrospectively reviewed the clinical records and radiographic assessments of patients with SMA scoliosis who underwent corrective surgery between 1993 and 2015. The radiographic assessments included the deformity correction and the progressive change of major curve angle, pelvic tilt (PT) and coronal balance (CB). The correction of deformities was observed postoperatively and at the patient’s 2-year follow-up to test the efficacy of each type of constructs.ResultsThirty-three patients were included in this study. There were 14 and 19 patients in the wiring and the hybrid construct groups, respectively. The hybrid construct demonstrated a higher major curve angle correction (50.5° ± 11.2° vs. 36.4° ± 8.4°, p < 0.001), a higher apical vertebral rotation correction (10.6° ± 3.9° vs. 4.8° ± 2.6°, p < 0.001), and reduced the progression of major curve angle after the 2-year follow-up (5.1° ± 2.9° vs. 8.7° ± 4.8°, p < 0.001). A moderate correlation was observed between the magnitude of correction of apical vertebral rotation angle and major curve (r = 0.528, p = 0.002).ConclusionThis study demonstrated that hybrid instrumentation can provide a greater magnitude of correction in major curve and apical rotation, as well as less major curve progression in comparison with sublaminar wire in patients with SMA scoliosis.Level of evidence III

Clinical Decision Making in Early Wound Drainage Following Posterior Spine Surgery in Pediatric Patients

2014 ◽  
Vol 2 (2) ◽  
pp. 104-109 ◽  
Author(s):  
Ozgur Dede ◽  
Patrick Bosch ◽  
Austin J. Bowles ◽  
William Timothy Ward ◽  
James W. Roach
Keyword(s):  
Decision Making ◽  
Spine Surgery ◽  
Pediatric Patients ◽  
Clinical Decision Making ◽  
Clinical Decision ◽  
Wound Drainage ◽  
Posterior Spine ◽  
Posterior Spine Surgery ◽  
Early Wound

Toward the definition of a new worst-case paradigm for the preclinical evaluation of posterior spine stabilization devices

2017 ◽  
Vol 231 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Luigi La Barbera ◽  
Tomaso Villa
Keyword(s):  
Fatigue Tests ◽  
Case Scenario ◽  
Worst Case ◽  
Static Tests ◽  
Spine Stabilization ◽  
Screw Length ◽  
Posterior Spine ◽  
American Society ◽  
Number Of Cycles ◽  
Experimental Findings

Mechanical reliability tests on posterior spine stabilization devices are based on standard F1717 by the American Society for Testing and Materials, which describes how to assemble the implant with vertebrae-like test blocks in a corpectomy model. A recent study proposed to revise the standard to describe the anatomical worst-case scenario, instead of the average one currently implemented, and introduce the unsupported screw length as a mechanical parameter. This article investigates the implications of such revisions on the endurance properties of an implant already on the market. Experimental fatigue tests demonstrate that the revision of F1717 standard leads to a reduction of 3.2 million cycles in the fatigue strength of the tested implant: this amount is comparable to the run-out number of cycles (5 million cycles) currently recommended. The numerical analysis, validated with static tests and strain gauges, supports the experimental findings and demonstrates that the stress on the implant may increase upon revision up to a 50% on the screw (most recurrent failure mode), with the unsupported screw length contributing alone up to 40%. The revision of ASTM F1717 standard would guarantee higher safety for the implant to test, potentially covering for a wider population of patients.

A Polyurethane-Gelatin Hybrid Construct for Manufacturing Implantable Bioartificial Livers

2008 ◽  
Vol 23 (5) ◽  
pp. 409-422 ◽  
Author(s):  
Wei Xu ◽  
Xiaohong Wang ◽  
Yongnian Yan ◽  
Renji Zhang
Keyword(s):  
Hybrid Construct ◽  
Bioartificial Livers

Porous Poly(vinyl alcohol)-Alginate Gel Hybrid Construct for Neocartilage Formation Using Human Nasoseptal Cells

2010 ◽  
Vol 163 (2) ◽  
pp. 331-336 ◽  
Author(s):  
David A. Bichara ◽  
Xing Zhao ◽  
Nathaniel S. Hwang ◽  
Hatice Bodugoz-Senturk ◽  
Michael J. Yaremchuk ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Alginate Gel ◽  
Hybrid Construct ◽  
Porous Poly
Sign in / Sign up

Export Citation Format

Share Document