Development of an Electrophysiological Instrument for Universal Clamp Testing

2013 ◽  
Author(s):  
Stephen Sladen ◽  
Angela Phongsavan ◽  
Jiang Wu ◽  
Eugene Chabot ◽  
Ying Sun
Keyword(s):  
Universal Clamp

A universal clamp for suspending glass during hardening

1960 ◽  
Vol 17 (11) ◽  
pp. 592-593
Author(s):  
V. N. Suvorov
Keyword(s):  
Universal Clamp

Use of the Universal Clamp in adolescent idiopathic scoliosis

2014 ◽  
Vol 23 (S4) ◽  
pp. 446-451 ◽  
Author(s):  
Jérôme Sales de Gauzy ◽  
Jean-Luc Jouve ◽  
Brice Ilharreborde ◽  
Benjamin Blondel ◽  
Franck Accadbled ◽  
...  
Keyword(s):  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Universal Clamp

scholarly journals Comparison of Clinical and Radiologic Outcome of Adolescent Idiopathic Scoliosis Treated with Hybrid Hook-Screw Instrumentation versus Universal Clamp System

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Ebrahim Ghayem Hassankhani ◽  
Farzad Omidi-Kashani ◽  
Shahram Moradkhani ◽  
Golnaz Ghayem Hassankhani ◽  
Mohammad Taghi Shakeri
Keyword(s):  
Adolescent Idiopathic Scoliosis ◽  
Blood Loss ◽  
Idiopathic Scoliosis ◽  
Operative Time ◽  
Intraoperative Blood Loss ◽  
Curve Correction ◽  
Universal Clamp ◽  
Outcome Scores ◽  
Group A ◽  
Group B

Background. In surgical treatment of adolescent idiopathic scoliosis (AIS), hybrid universal clamp system has been used by some authors. We aimed to compare the clinical and radiologic outcome of hybrid universal clamp with hybrid thoracic hook lumbar screw. Methods. A prospective study was performed on 56 consecutive patients with AIS, who had alternatively undergone a posterior spinal fusion and instrumentation with hybrid thoracic hook lumbar screw system (28 patients: group A) and hybrid universal clamp system (28 patients: group B) between June 2006 and January 2014 at Imam Reza University Hospital and had been followed up for more than two years. The comparison was according to radiographic changes, operative time, intraoperative blood loss, complications, and Scoliosis Research Society (SRS-22) outcome scores. Results. The preoperative mean curve Cobb angle was 58°±7° (42°–74°) in group A and 60°±9° (46°–75°) in group B. The mean final coronal curve correction was 60.4% and 75.5% in groups A and B, respectively (P=0.001). Postoperative SRS outcome scores were also comparable. Conclusion. Universal clamp instrumentation had a significantly better curve correction and lower complication rate compared with hybrid thoracic hook lumbar screw. Both instrumentation methods had similar operative time, intraoperative blood loss, and postoperative SRS outcome scores.

scholarly journals Use of the Universal Clamp for deformity correction and as an adjunct to fusion: preliminary results in scoliosis

2010 ◽  
Vol 4 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Jean-Luc Jouve ◽  
Jérôme Sales de Gauzy ◽  
Benjamin Blondel ◽  
Franck Launay ◽  
Franck Accadbled ◽  
...  
Keyword(s):  
Deformity Correction ◽  
Preliminary Results ◽  
Universal Clamp

Universal Clamp system in thoracolumbar spinal fixation: technical note

2009 ◽  
Vol 151 (12) ◽  
pp. 1673-1680 ◽  
Author(s):  
Roberto Gazzeri ◽  
Andrea Faiola ◽  
Marcelo Galarza ◽  
Marco Tamorri
Keyword(s):  
Technical Note ◽  
Spinal Fixation ◽  
Universal Clamp

scholarly journals Biomechanics of a flexible sublaminar connector in long-segment thoracic fixation

2016 ◽  
Vol 24 (2) ◽  
pp. 340-346 ◽  
Author(s):  
Nestor G. Rodriguez-Martinez ◽  
Sam Safavi-Abbasi ◽  
Luis Perez-Orribo ◽  
Anna G. U. S. Newcomb ◽  
Phillip M. Reyes ◽  
...  
Keyword(s):  
Pedicle Screw ◽  
Therapeutic Option ◽  
Pedicle Screws ◽  
Axial Rotation ◽  
Contralateral Side ◽  
Spinal Stabilization ◽  
Universal Clamp ◽  
With Screws ◽  
Hybrid Construction

OBJECT The Universal Clamp Spinal Fixation System (UC) is a novel sublaminar connection for the spine that is currently used in conjunction with pedicle screws at the thoracic levels for the correction of scoliosis. This device allows the surgeon to attach rods and incorporate a pedicle screw construction. The flexible composition of the UC should provide flexibility intermediate to the uninstrumented spine and an all-screw construct. This hypothesis was tested in vitro using nondestructive flexibility testing of human cadaveric spine segments. METHODS Six unembalmed human cadaveric thoracic spine segments from T-3 to T-11 were used. The specimens were tested under the following conditions: 1) intact; 2) after bilateral screws were placed at T4-T10 and interconnected with longitudinal rods; 3) after placement of a hybrid construction with screws at T-4, T-7, and T-10 with an interconnecting rod on one side and screws at T-4 and T-10 with the UC at T5–9 on the contralateral side; (4) after bilateral screws were placed at T-4 and T-10 and interconnected with rods and bilateral UC were placed at T5–9; and 5) after bilateral screws at T-4 and T-10 were placed and interconnected with rods and bilateral sublaminar cables were placed at T5–9. Pure moments of 6.0 Nm were applied while optoelectronically recording 3D angular motion. RESULTS Bilateral UC placement and bilateral sublaminar cables both resulted in a significantly greater range of motion than bilateral pedicle screws during lateral bending and axial rotation, but not during flexion or extension. There were no differences in stability between bilateral UC and bilateral cables. The construct with limited screws on one side and UC contralaterally showed comparable stability to bilateral UC and bilateral cables. CONCLUSIONS These results support using the UC as a therapeutic option for spinal stabilization because it allows comparable stability to the sublaminar cables and provides flexibility intermediate to that of the uninstrumented spine and an all-screw construct. Equivalent stability of the hybrid, bilateral UC, and bilateral cable constructs indicates that 6-level UC provides stability comparable to that of a limited (3-point) pedicle screw-rod construct.

Mega-granuloma After Using the Universal Clamp for Adolescent Idiopathic Scoliosis: What Is It and Can It Be Prevented?

2014 ◽  
Vol 2 (5) ◽  
pp. 392-398 ◽  
Author(s):  
Richard Anthony Bailey ◽  
Jan William Duncan ◽  
Alan T. Tran ◽  
Jerrold L. Abraham
Keyword(s):  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Universal Clamp
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