第二军医大学专家为烧伤患者进行MEEK植皮术

2009-06-13 12:28 阅读(?)评论(0)
第二军医大学长海医院由著名烧伤专家夏照帆教授、朱世辉教授、唐洪泰教授等专家团队,为另外两名特重烧伤患者进行MEEK植皮术和大型切痂植皮术,手段先进,效率高。抢救正在持续进行中。

MEEK Micrograft

 


In 1958 a remarkable technique for expanding autografts was described by C.P. Meek. With a MEEK-WALL dermatome postage stamp autografts were obtained and expanded using double pleated gauzes. In this way a regular distribution of autograft islands was achieved with a nine fold expansion. This technique however required too much skill and it became eclipsed by the introduction of mesh skin grafts (Tanner et al., 1964). Eventually production of the MEEK-WALL dermatome and gauzes was discontinued.

However, lack of autograft donor sides is increasingly encountered as a limiting factor in achieving wound closure in case of extensive skin defects. The Meshgraft technique requires donor sites of suitable size and shape and epithelialization may be delayed with expansion ratios greater than 1:4. Besides widely expanded meshed autografts might become unmanageable.

In cooperation with surgeons of the burn centre of the Red Cross Hospital Beverwijk, The Netherlands, Humeca re-designed and modernized the MEEK technique. Imperfections of the original method were overcome and the prefolded gauzes are now manufactured with expansion ratios 1:3, 1:4, 1:6 and 1:9.

The clinical results with this modified MEEK technique are excellent: the graft take appears to be superior to other methods, even in problematic zones and even in case of qualitatively inferior wound beds. Only very small donorsites are required. Any small piece of patients skin can be used. The graft islands are close together in a regular pattern, resulting in fast epithelialization. As the autograft islands are not mutually connected, failure of a few islands does not necessarily affect the overall graft take.
The method appears to be a simple technique to achieve a regular distribution of postage stamp grafts, correctly orientated to the wound surface. The cosmetic results are comparable to those obtained with meshgrafts 1:3.



The ability to cut a split-thickness skin graft free-handedly has been regarded as a skill acquired only by long experience. Several devices have been improvised to simplify this task. However, the size and elaborate arrangements of dermatomes often preclude their use, especially if the need is in an emergency room, a clinic or at the patient’s bedside. Besides sophisticated dermatomes are costly and more adequate for harvesting larger skin grafts.
 
In co-operation with the Dutch surgeon dr. Willem Nugteren, Humeca developed a new dermatome for freehanded harvesting of a 30 mm (1¼ in.) wide split skin graft with a pre-determined thickness of about 0.25 mm (0.001 in.). The new product is called the “Sober” dermatome, from an English translation of the phonetic Dutch last name of the inventor, dr. Nugteren. Based on his experience with surgery in third world countries, it became clear that a portable, economical and simple, yet efficient dermatome would be a very useful mechanical tool for skin grafting.
   
As can be seen from the picture, the shape of the Sober dermatome was derived from a safety razor. The dermatome is held firmly against the tautly held skin at a pre-determined angle and a graft of the desired length is quickly cut. No lateral movements are required. Humeca suplies special low cost blades for this dermatome. 
 

The picture on the left shows the donorsites on the upper leg of a child in Tanzania. In this case a split skin graft was harvested with the razor dermatome from which the new Sober dermatome was derived.

We think the Sober dermatome and blade breaking device offer the surgeon a low-cost alternative to the more elaborate mechanical dermatomes whenever small grafts are needed. Due to its robust construction, low price and wide availability of blades, we expect it to be very suitable for use in third world countries.

From the download section you can print a leaflet and a manual.


The SOBER dermatome is supplied as a set in a small suitcase consisting of the dermatome with an integrated key, an extra key and a box with 10 sterile blades (see picture below).
 
 
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  最后修改于 2010-12-08 02:02    阅读(?)评论(0)
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