Abstract:
:Nerve transection using rat sciatic nerves was employed to observe morphologic changes in the periodic denervation of Pacinian corpuscles. During periods of from 1 to 20 weeks after surgery, a total of 15 corpuscles were obtained under the operating microscope and processed for morphologic analysis using light and electron microscopes. Based on the morphologic findings, normal corpuscles were composed of an axon terminal and inner and outer core cells. Following nerve transection, the axon terminal immediately disappeared at 1 week, but the original inner and outer core cells were preserved, with macrophage migration occurring in the outer core. After 8 weeks, the circular regularity of the inner and outer core lamellae was occasionally broken. The lamellae had wavy courses and there were many empty spaces in the inner core. Even at 20 weeks after denervation, there was interruption in the continuity of the outer core cells; the membranous structure of the outer core and the lamellar structure of the inner core were well-preserved; the outer and inner core cells were still present. Simultaneously, a small number of collagen fibrils were observed between the inner and outer core cells from the earliest postoperative stage. These fibrils increased in number in later stages. The results suggest that, immediately after destruction of axon terminals, macrophages migrate into the interlamellar spaces where they engulf the debris of the degenerated axon terminals. The degeneration of the corpuscles seems to be similar to that of denervated nerve axons; therefore, the inner core cells, which are continuous with the Schwann cells, maintain their original condition for at least 20 weeks after corpuscle denervation. The outer core cells, which are continuous with the perineurial nerve cells, are assumed to be the main cells producing the collagen fibrils in the denervated Pacinian corpuscles.
journal_name
J Reconstr Microsurgjournal_title
Journal of reconstructive microsurgeryauthors
Koshima I,Moriguchi Tdoi
10.1055/s-2007-1000101subject
Has Abstractpub_date
1999-05-01 00:00:00pages
273-9issue
4eissn
0743-684Xissn
1098-8947journal_volume
15pub_type
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journal_title:Journal of reconstructive microsurgery
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abstract:BACKGROUND: There is an increasing trend toward bilateral breast reconstruction. Using the National Surgical Quality Improvement Program (NSQIP) database, we sought to understand the association between unilateral and bilateral free flap breast reconstruction and operative time and flap failure. METHODS: We selected a...
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章,评审
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更新日期:2015-10-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
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更新日期:2008-11-01 00:00:00
abstract::Although many trauma centers are primarily "adult-oriented," the presentation of unusual life- or limb-threatening wounds in children occasionally have mandated urgent microvascular tissue transfer for salvage. For these rare instances, should a microsurgical team accustomed to dealing with adult trauma patients even ...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2007-1006526
更新日期:1995-05-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
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更新日期:1990-07-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2006-958701
更新日期:2007-01-01 00:00:00
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更新日期:2006-05-01 00:00:00
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更新日期:2001-01-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-0033-1351354
更新日期:2013-10-01 00:00:00
abstract::Radical resection of tongue and oropharyngeal carcinomas often results in complex defects that are challenging to reconstruct. Furthermore, remaining function should not be disturbed by the reconstruction. We introduce a new flap design and monitored swallowing and speech following reconstruction of complex oral defec...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2008-1078691
更新日期:2008-04-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2004-815639
更新日期:2003-11-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
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更新日期:2020-03-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-0029-1220862
更新日期:2010-01-01 00:00:00
abstract::The high demand for microsurgical skills in those without a strong microsurgery background limits the application of the rat aortic transplant model to transplantation research. In this study, we established a rat aortic transplant model using a hydrodissection technique as a minimal-touch technique in vessel dissecti...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-0031-1278710
更新日期:2011-07-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2007-1006992
更新日期:1987-04-01 00:00:00
abstract::Instead of conventional multiple-paddle or folded free flaps, the authors introduce three types of free combined tissue transfers for cosmetic and functional restoration of massively large facial defects. Three cases reported here were repaired with combined flaps consisting of two or more tissues, such as combined fr...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2007-1000221
更新日期:1997-02-01 00:00:00
abstract::This study was designed to quantify the relative contribution of the inferior and superior epigastric systems to infraumbilical TRAM flap skin blood flow, using laser Doppler flowmetry. In twelve flaps (11 patients), blood-flow measurements were obtained during routine elevation of the TRAM flap for breast reconstruct...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2007-1006593
更新日期:1994-07-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2007-1006787
更新日期:1991-10-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
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更新日期:2017-02-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
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更新日期:2012-07-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2007-1006429
更新日期:1997-10-01 00:00:00
abstract::This study investigated the intact nerve bridge technique for overcoming peripheral nerve gap defects in a rabbit model. To create the intact nerve bridge, a 1-cm segment of the peroneal nerve is resected leaving a gap defect. The proximal and distal peroneal nerve stumps are sutured 1 cm apart, in an end-to-side fash...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-2005-869827
更新日期:2005-04-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-0030-1263288
更新日期:2010-11-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章,评审
doi:10.1055/s-0035-1558463
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND: The volume of the profunda femoris artery perforator (PAP) flap limits its indications to small- and medium-sized breast reconstructions after modified radical mastectomy for cancer. We report a modified PAP flap design, including not only a vertical extension that increases its volume but also the skin sur...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-0038-1649508
更新日期:2019-01-01 00:00:00
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journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-0029-1224860
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND: As deep inferior epigastric artery perforator (DIEP) flaps have gained popularity in breast reconstruction, the postoperative care of these patients, including the appropriate hospital length-of-stay and the need for intensive care unit (ICU) admission, has become a topic of debate. At our institution, we h...
journal_title:Journal of reconstructive microsurgery
pub_type: 杂志文章
doi:10.1055/s-0040-1701698
更新日期:2020-06-01 00:00:00