The effect of surgery for basal osteoarthritis of the thumb on dart thrower’s motion

This study aimed to identify the effects of basal thumb surgery on the range of dart thrower’s motion. Thirteen fresh-frozen cadaveric specimens were placed in a customized jig. Simulated scaphotrapeziotrapezoid joint fusion was carried out on all specimens. Half the specimens then underwent trapeziectomy and the rest had excision of the distal pole of the scaphoid. Simulated scaphotrapeziotrapezoid fusion reduced the range of dart thrower’s motion to 89% of the range in the intact wrists, from a mean of 117° to 104°. Although this reduction is not large, it was statistically significant. Simulated trapeziectomy caused a very small increase in dart thrower’s motion range compared with the range in the intact wrists. Simulated distal pole of scaphoid excision did not change the range of dart thrower’s motion. These results may inform preoperative decisions for surgical management of basal osteoarthritis of the thumb.

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Sacroiliac Joint Fusion Using Triangular Titanium Implants vs. Non-Surgical Management: Six-Month Outcomes from a Prospective Randomized Controlled Trial

The International Journal of Spine Surgery ◽

10.14444/2006 ◽

2015 ◽

Vol 9 ◽

pp. 6 ◽

Cited By ~ 34

Author(s):

Peter Whang ◽

Daniel Cher ◽

David Polly ◽

Clay Frank ◽

Harry Lockstadt ◽

...

Keyword(s):

Randomized Controlled Trial ◽

Surgical Management ◽

Sacroiliac Joint ◽

Controlled Trial ◽

Titanium Implants ◽

Randomized Controlled ◽

Joint Fusion ◽

Prospective Randomized Controlled Trial ◽

Sacroiliac Joint Fusion

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Sacroiliac joint tuberculosis: surgical management by posterior open-window focal debridement and joint fusion

BMC Musculoskeletal Disorders ◽

10.1186/s12891-017-1866-9 ◽

2017 ◽

Vol 18 (1) ◽

Cited By ~ 1

Author(s):

Guo Zhu ◽

Li-Yuan Jiang ◽

Zhang Yi ◽

Li Ping ◽

Chun-Yue Duan ◽

...

Keyword(s):

Surgical Management ◽

Sacroiliac Joint ◽

Joint Fusion ◽

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Two-Year Outcomes from a Randomized Controlled Trial of Minimally Invasive Sacroiliac Joint Fusion vs. Non-Surgical Management for Sacroiliac Joint Dysfunction

The International Journal of Spine Surgery ◽

10.14444/3028 ◽

2016 ◽

Vol 10 ◽

pp. 28 ◽

Cited By ~ 40

Author(s):

David W. Polly ◽

John Swofford ◽

Peter G. Whang ◽

Clay J. Frank ◽

John A. Glaser ◽

...

Keyword(s):

Randomized Controlled Trial ◽

Minimally Invasive ◽

Surgical Management ◽

Sacroiliac Joint ◽

Controlled Trial ◽

Randomized Controlled ◽

Sacroiliac Joint Dysfunction ◽

Joint Fusion ◽

Sacroiliac Joint Fusion

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High-Vacuum Evaporation and a Cryostage to Observe Fractured Yeast

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100103346 ◽

1988 ◽

Vol 46 ◽

pp. 256-257

Author(s):

William P. Wergin ◽

Eric F. Erbe ◽

Eugene L. Vigil

Keyword(s):

Electron Microscope ◽

Low Temperature ◽

Standard Specimen ◽

High Vacuum ◽

Specimen Holder ◽

Sputter Coating ◽

Fresh Frozen ◽

Gain Access ◽

Scanning Electron ◽

Transfer Device

Investigators have long realized the potential advantages of using a low temperature (LT) stage to examine fresh, frozen specimens in a scanning electron microscope (SEM). However, long working distances (W.D.), thick sputter coatings and surface contamination have prevented LTSEM from achieving results comparable to those from TEM freeze etch. To improve results, we recently modified techniques that involve a Hitachi S570 SEM, an Emscope SP2000 Sputter Cryo System and a Denton freeze etch unit. Because investigators have frequently utilized the fractured E face of the plasmalemma of yeast, this tissue was selected as a standard for comparison in the present study.In place of a standard specimen holder, a modified rivet was used to achieve a shorter W.D. (1 to -2 mm) and to gain access to the upper detector. However, the additional height afforded by the rivet, precluded use of the standard shroud on the Emscope specimen transfer device. Consequently, the sample became heavily contaminated (Fig. 1). A removable shroud was devised and used to reduce contamination (Fig. 2), but the specimen lacked clean fractured edges. This result suggested that low vacuum sputter coating was also limiting resolution.

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Magnesium and sulfur in mast cell and basophil granules of lower vertebrates in relation with histamine

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100132613 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1596-1597

Author(s):

Kenichi Takaya

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Mast Cell ◽

Mast Cells ◽

Tree Frog ◽

X Ray ◽

Transmission Electron ◽

Scanning Transmission ◽

Fresh Frozen ◽

Ultrathin Sections

Mast cell and basophil granules of the vertebrate contain heparin or related sulfated proteoglycans. Histamine is also present in mammalian mast cells and basophils. However, no histamine is detected in mast cell granules of the amphibian or fish, while it is shown in those of reptiles and birds A quantitative x-ray microanalysis of mast cell granules of fresh frozen dried ultrathin sections of the tongue of Wistar rats and tree frogs disclosed high concentrations of sulfur in rat mast cell granules and those of sulfur and magnesium in the tree frog granules. Their concentrations in tree frog mast cell granules were closely correlated (r=0.94).Fresh frozen dried ultrathin sections and fresh air-dried prints of the tree frog tongue and spleen and young red-eared turtle (ca. 6 g) spleen and heart blood were examined by a quantitative energy-dispersive x-ray microanalysis (X-650, Kevex-7000) for the element constituents of the granules of mast cells and basophils. The specimens were observed by transmission electron microscopy (TEM) (80-200 kV) and followed by scanning transmission electron microscopy (STEM) under an analytical electron microscope (X-650) at an acceleration voltage of 40 kV and a specimen current of 0.2 nA. A spot analysis was performed in a STEM mode for 100 s at a specimen current of 2 nA on the mast cell and basophil granules and other areas of the cells. Histamine was examined by the o-phthalaldehyde method.

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Surgical Management of Patients With 22q11.2 Deletion Syndrome

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2019_pers-sig5-2019-0004 ◽

2019 ◽

Vol 4 (5) ◽

pp. 857-869

Author(s):

Oksana A. Jackson ◽

Alison E. Kaye

Keyword(s):

Surgical Management ◽

Preoperative Evaluation ◽

Preoperative Assessment ◽

22Q11.2 Deletion Syndrome ◽

Deletion Syndrome ◽

22Q11.2 Deletion ◽

Surgical Decision ◽

Obstructive Sleep ◽

Spine Abnormalities ◽

Speech Assessment

Purpose The purpose of this tutorial was to describe the surgical management of palate-related abnormalities associated with 22q11.2 deletion syndrome. Craniofacial differences in 22q11.2 deletion syndrome may include overt or occult clefting of the palate and/or lip along with oropharyngeal variances that may lead to velopharyngeal dysfunction. This chapter will describe these circumstances, including incidence, diagnosis, and indications for surgical intervention. Speech assessment and imaging of the velopharyngeal system will be discussed as it relates to preoperative evaluation and surgical decision making. Important for patients with 22q11.2 deletion syndrome is appropriate preoperative screening to assess for internal carotid artery positioning, cervical spine abnormalities, and obstructive sleep apnea. Timing of surgery as well as different techniques, common complications, and outcomes will also be discussed. Conclusion Management of velopharyngeal dysfunction in patients with 22q11.2 deletion syndrome is challenging and requires thoughtful preoperative assessment and planning as well as a careful surgical technique.

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