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Gregory Alushin received his bachelor degree in biochemistry from Columbia University in 2006. He then joined the laboratory of Eva Nogales to work on structural aspects of microtubules and kinetochores for his PhD in biophysics, and graduated from the University of California, Berkeley in 2012. Greg then moved to the National Heart, Lung and Blood Institute, NIH, Bethesda, as a postdoctoral fellow with Clare Waterman. In 2013, he received an Early Independence Award from the NIH, enabling him to establish his own laboratory...
November 1, 2017: Journal of Cell Science
Rony Shreberk-Hassidim, Yuval Ramot, Zvi Gilula, Abraham Zlotogorski
No abstract text is available yet for this article.
February 2016: Journal of the American Academy of Dermatology
David Rubin
No abstract text is available yet for this article.
January 2015: Radiology
David J Slutsky
No abstract text is available yet for this article.
August 2014: Journal of Wrist Surgery
Ronit Wollstein, Frederick Werner, Louis A Gilula
Introduction Osteoarthritis (OA) in the wrist usually develops in a pattern described as scapholunate advanced collapse (SLAC). We observed an alternative pattern of OA that involves the lunocapitate joint in isolation with minimal involvement of the radioscaphoid articulation. Case Series The series was observed from a series of 100 wrist radiographs that were retrospectively reviewed. In order to characterize the alternative pattern of OA, we compared demographic data, presentation, and physical and radiographic examination characteristics between the patients with lunocapitate OA and SLAC wrists...
May 2014: Journal of Wrist Surgery
Joseph W Owen, Keith H Bridwell, Louis A Gilula
Radiofrequency ablation (RFA) has become an accepted first-line treatment for osteoid osteomas. Ablation of spinal osteoid osteomas has presented a particular challenge because of their proximity to delicate neural structures. Although many case series have reported multiple successfully treated spinal osteoid osteomas, there are no reports of thermal injury or insufficiency fracture associated with RFA of spinal osteoid osteomas. We report the management of complications that result from treating a spinal osteoid osteoma within a pedicle...
June 2014: American Journal of Orthopedics
Kyle Shipley, K Daniel Riew, Louis A Gilula
Study Design Retrospective evaluation of consecutively performed fluoroscopically guided cervical nerve root blocks. Objective To describe the incidence of injectate central epidural flow with respect to needle tip position during fluoroscopically guided extraforaminal cervical nerve root blocks (ECNRBs). Methods Between February 19, 2003 and June 11, 2003, 132 consecutive fluoroscopically guided ECNRBs performed with contrast media in the final injected material (injectate) were reviewed on 95 patients with average of 1...
February 2014: Global Spine Journal
Sanjay Naran, Yaron Zaulan, Sameer Shakir, Louis A Gilula, Frederick W Werner, Ronit Wollstein
OBJECTIVES: Concomitant ligamentous injury in distal radius fractures (DRF) may explain continued pain following surgery. The purpose of this study was to compare radiographic measurements assessing scaphoid translation in DRF after reduction, to measurements performed on normal radiographs. This may allow noninvasive evaluation of radiocarpal ligamentous integrity. METHODS: Fifty postoperative radiographs were evaluated. The distance between the ulnar border of the radial styloid and the radial border of the scaphoid was measured midway between the styloid tip and scaphoid base, and then divided by scaphoid width at the same level...
October 2014: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
Ronit Wollstein, Frederick W Werner, Roee Rubenstein, Christopher R Nacca, Richard A Bilonick, Louis A Gilula
The purpose of this study was to establish a normal measure of scaphoid position in the radioulnar plane in standard neutral, radial and ulnar deviation posteroanterior radiographs. This measurement may allow indirect evaluation of the radiocarpal ligaments and comparison between normal and pathologic states (following radius fractures, perilunate dislocations). Measurements were trialed on 74 normal wrist radiographs and 25 cadaver wrists. We evaluated the distance between the radial styloid and the scaphoid and corresponding scaphoid width...
2013: Hand Surgery
Der Yang Wu, Mei Ching Huang, Yung Cheng Wang, Wen Chang Tseng
The Gilula's test suggests the presence of ulnocarpal translation when 50% or more of the lunate lies medial to the ulnar edge of radius. The purpose of this study was to examine the reliability of this semiquantitative test as there was inconsistency between the previous publications in regarding 50% as the cutoff value for the normal lunate uncovering ratio (LUR). We utilized the Picture Archiving and Communication System to investigate radiographs of 299 normal adult wrists and emphasized defined radiographic landmarks for accurate quantitative measurement...
2013: Hand Surgery
Milena Cerny, Romain Marlois, Nicolas Theumann, Christof Bollmann, Laurent Wehrli, Delphine Richarme, Reto Meuli, Fabio Becce
PURPOSE: To determine the value of applying finger trap distraction during direct MR arthrography of the wrist to assess intrinsic ligament and triangular fibrocartilage complex (TFCC) tears. MATERIALS AND METHODS: Twenty consecutive patients were prospectively investigated by three-compartment wrist MR arthrography. Imaging was performed with 3-T scanners using a three-dimensional isotropic (0.4 mm) T1-weighted gradient-recalled echo sequence, with and without finger trap distraction (4 kg)...
October 2013: European Journal of Radiology
Lone Kirkeby, Lena von Varfalva Palffy, Torben Bæk Hansen
The aim of this study was to present the long-term results in a small series of patients with Kienböck disease treated with a pedicled vascularised bone graft from the 4/5 extensor compartment of the distal radius as the only surgical treatment. In the period 2002-2006, five patients, three men and two women, mean age 41 years (22-54) were operated on using a pedicled vascularised bone graft from the 4/5 extensor compartment of the distal radius as described by Sheetz et al. Four patients were staged as Lichtman stage 2 and one as Lichtman stage 3...
February 2014: Journal of Plastic Surgery and Hand Surgery
Lance E Reinsmith, Marc Garcia-Elias, Louis A Gilula
Axial carpal dislocations and fracture dislocations have received mention in the hand and wrist surgery literature. Reference to these injuries in the radiology literature is scarce and anecdotal, resulting in somewhat limited awareness of these lesions among radiologists. These are rare injuries that result from severe, broad crushing or blast forces involving dorsopalmar compression of the wrist. This results in carpal splits, with either the ulnar or radial column stable with respect to the radius and with dislocation of the unstable column...
June 2013: Radiology
Ronit Wollstein, Julio Clavijo, Louis A Gilula
Our understanding of wrist osteoarthritis (OA) lags behind that of other joints, possibly due to the complexity of wrist biomechanics and the importance of ligamentous forces in the function of the wrist. Scaphotrapeziotrapezoidal (STT) OA is common, but its role in wrist clinical pathology and biomechanics is unclear. We identified the prevalence of radiographic STT joint OA in our hand clinic population and defined the relationship between STT and radiocarpal OA in wrist radiographs. One hundred consecutive wrist clinical and radiographic exams were retrospectively reviewed...
2012: Arthritis
L Gilula, M Persenaire
BACKGROUND AND PURPOSE: Two injectable materials for the treatment of vertebral compression fractures, Cortoss and PMMA, were compared in a prospective, randomized study. Our purpose was to analyze the incidence and nature of subsequent fractures following treatment, one of the secondary outcomes. MATERIALS AND METHODS: A prospective study was conducted at 21 US sites by 38 investigators by using Cortoss randomized 2:1 to PMMA in 256 patients blinded to treatment assignment...
January 2013: AJNR. American Journal of Neuroradiology
Alfred Wang, Thomas K Pilgram, Louis A Gilula
OBJECTIVE: The goal of this work is to review the thoracic foraminal nerve blocks and foraminal epidurals performed at a single institution to determine the incidence and types of immediate complications and pain relief associated with thoracic foraminal nerve blocks. MATERIALS AND METHODS: This retrospective study entailed a comprehensive review of the radiographs and reports of 296 injections performed in 225 examinations on 153 patients (60 men and 93 women)...
December 2011: AJR. American Journal of Roentgenology
Giuseppe Checcucci, Prospero Bigazzi, Maura Zucchini, Massimo Ceruso
Total dislocation of the capitate is an extremely rare event. We report on one such unusual case. The complete expulsion of the capitate from its physiological position is difficult to diagnose. Standard parameters of the antero-posterior and lateral radiological do not head to a definite diagnosis. In our patient, the only real diagnostic tool was the clinical assessment and the Gilula arches alteration to the standard antero-posterior projection. In the period following trauma, the patient reported a very high level of pain in the wrist...
2011: Hand Surgery
Hyun Bae, Homer Paul Hatten, Raymond Linovitz, A David Tahernia, Michael K Schaufele, Vance McCollom, Louis Gilula, Philip Maurer, Ramsin Benyamin, John M Mathis, Maarten Persenaire
STUDY DESIGN: Randomized, controlled, prospective (AAOS therapeutic level I) trial conducted under Food and Drug Administration Investigational Device Exemption hypothesized noninferiority of a novel bioactive composite material to polymethylmethacrylate (PMMA). OBJECTIVE: To determine the safety and efficacy of a new, nonresorbable bioactive composite (Cortoss) compared with PMMA, the standard treatment of vertebral compression fractures (VCFs). SUMMARY OF BACKGROUND DATA: Vertebroplasty with PMMA, the widely adopted treatment for VCFs nonresponsive to conservative care, provides effective, immediate pain relief, but the material has received criticism for its properties...
April 1, 2012: Spine
Dennis Sagini, Louis A Gilula, Ronit Wollstein
We report a rare case of transradial styloid radial perilunate dislocation in a patient who presented with ulnar nerve symptoms, and we describe our treatment approach to this unusual injury. In a literature search, we found no other report of such an injury.
April 2011: American Journal of Orthopedics
Bong Cheol Kwon, Soo-Joong Choi, Si-Young Song, Sang Hoon Baek, Goo Hyun Baek
BACKGROUND: Intra-articular distal radial fractures are frequently accompanied by a scapholunate interosseous ligament injury, which may adversely affect the outcomes. Arthroscopy may not be appropriate as a first-line evaluation method to diagnose these injuries because of time, expense, and availability issues. The purpose of this study was to evaluate the effectiveness of the modified carpal stretch test for screening for scapholunate interosseous ligament injuries in patients with an intra-articular distal radial fracture...
May 4, 2011: Journal of Bone and Joint Surgery. American Volume
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