Cannulated axial screw potential utility as reliable bony fixation in hand surgery

2020 ◽  
Vol 73 (9) ◽  
pp. 1775-1784
Author(s):  
Alberto Sánchez-García ◽  
Alberto Pérez-García ◽  
Alessandro Thione
1999 ◽  
Vol 24 (3) ◽  
pp. 347-349 ◽  
Author(s):  
S. T. O’SULLIVAN ◽  
G. LIMANTZAKIS ◽  
S. P. J. KAY

We report our experience of a low-profile mini-plating system in the treatment of fractures of the hand in 57 consecutive patients (five children and 52 adults). Thirteen procedures were performed electively, and 44 procedures were performed on an emergency basis. Indications for plating included fixation of metacarpal (36) and phalangeal (eight) fractures, bony fixation following rotation osteotomy (six) digital replantation (two) or free toe transfer (two). Seventeen patients had postoperative problems, including restricted range of motion (12), rotation deformity (two), significant cold intolerance (two) or fracture (two). Plate removal was required in seven patients, twice as a result of a second injury, and plate removal was unsuccessfully attempted in one other patient. Two patients required extensor tenolysis. We have found this system to be useful for bony fixation in the hand. However, as with other methods of internal fixation in the hand, there may be complications.


Author(s):  
James J. Drinane ◽  
Brian Drolet ◽  
Ashit Patel ◽  
Joseph A. Ricci

Abstract Introduction Fellowship-trained hand surgeons may have residency training in either orthopedic, plastic, or general surgery, generating significant variability in education background. To study the effect of different training backgrounds on practice pattern variations, we utilized the NSQIP (National Surgical Quality Improvement Database) database to assess hand surgery volumes and case variety by specialty. Materials and Methods NSQIP years 2008 to 2017 was queried with hand surgery current procedural terminology codes defined by the American Board of Orthopedic Surgery. Procedures were grouped according to type and specialty, and relative rates calculated. Hand society membership data were used to determine if procedural volume for each specialty in each category and overall contribution to the volume of hand surgery performed nationally was distributed in accordance with membership data. Results A total of 145,015 hand surgeries were performed; 13,267 (9.1%) by general surgeons, 28,402 (19.6%) by plastic surgeons, and 103,346 (71.3%) by orthopedic surgeons. Orthopedic surgeons performed significantly more bone, fracture, joint, and tendon cases. General surgeons and plastic surgeons performed higher than expected numbers of soft tissue coverage and cases overall with respective excesses of 183 and 22%. Conclusion Hand surgery is an available fellowship pathway from multiple residencies. Fellowship training does not level the field of real-world practice patterns. Residency training experiences significantly impact practice.


2012 ◽  
Vol 7 (1) ◽  
pp. 8-28 ◽  
Author(s):  
John McKenzie

The purpose of this article is to provide a sociological typology for understanding the different types of practitioners within the Tibetan Buddhist organization, Rokpa International, in Scotland. It will be argued that the empirically derived criteria and Weber’s (1978) sociological concepts of authority, power and status allow us to understand the tensions and mutually dependent relationship between the different types. In conclusion, it will be argued that, while this typology is not presented as a challenge to existing typologies, this article demonstrates the potential utility of these sociological concepts for understanding the practice and development of Buddhism in the West.


Author(s):  
Junjiao Guan ◽  
Jianhua Zhang ◽  
Shenli Mao ◽  
Hui Zhang ◽  
Xiaohong Yang ◽  
...  

Author(s):  
Alex L. Bagdasarian ◽  
Stasik Popov ◽  
Benjamin Wigman ◽  
Wenjing Wei ◽  
woojin lee ◽  
...  

Herein we report the 3,5bistrifluoromethylphenyl urea-catalyzed functionalization of unactivated C–H bonds. In this system, the urea catalyst mediates the formation of high-energy vinyl carbocations that undergo facile C–H insertion and Friedel–Crafts reactions. We introduce a new paradigm for these privileged scaffolds where the combination of hydrogen bonding motifs and strong bases affords highly active Lewis acid catalysts capable of ionizing strong C–O bonds. Despite the highly Lewis acidic nature of these catalysts that enables triflate abstraction from sp<sup>2</sup> carbons, these newly found reaction conditions allow for the formation of heterocycles and tolerate highly Lewis basic heteroaromatic substrates. This strategy showcases the potential utility of dicoordinated vinyl carbocations in organic synthesis.<br>


2020 ◽  
Author(s):  
Alex L. Bagdasarian ◽  
Stasik Popov ◽  
Benjamin Wigman ◽  
Wenjing Wei ◽  
woojin lee ◽  
...  

Herein we report the 3,5bistrifluoromethylphenyl urea-catalyzed functionalization of unactivated C–H bonds. In this system, the urea catalyst mediates the formation of high-energy vinyl carbocations that undergo facile C–H insertion and Friedel–Crafts reactions. We introduce a new paradigm for these privileged scaffolds where the combination of hydrogen bonding motifs and strong bases affords highly active Lewis acid catalysts capable of ionizing strong C–O bonds. Despite the highly Lewis acidic nature of these catalysts that enables triflate abstraction from sp<sup>2</sup> carbons, these newly found reaction conditions allow for the formation of heterocycles and tolerate highly Lewis basic heteroaromatic substrates. This strategy showcases the potential utility of dicoordinated vinyl carbocations in organic synthesis.<br>


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