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Friday, 2 January 2015

Anatomy of the nasal Cavity.

http://en.wikipedia.org/wiki/Empty_nose_syndrome




                                                         Anatomy of the Nasal Cavity.

All Turbinates Removed.

http://en.wikipedia.org/wiki/Empty_nose_syndrome



All Turbinates removed - Right lateral wall view.

Empty Nose Syndrome.

http://en.wikipedia.org/wiki/Empty_nose_syndrome


                                        Empty Nose Syndrome after subtotal inferior Turbinectomy.

The ideal implant Material.

http://en.wikipedia.org/wiki/Empty_nose_syndrome

The ideal implant material, other than real original turbinate tissue should be something with low extrusion and rejection rates, minimal infection risk, and—very importantly—that will provide a strong and durable enough structure that at the same time allows good permeability for blood vessel incorporation, which seems to be the key against long term absorption.

Allografts.

http://en.wikipedia.org/wiki/Empty_nose_syndrome

Allografts: In the last two decades scientists have been able to harvest and remove away genetic markers of some basic human tissues (like skin dermis) from donors, and thus supplying a human natural implant material which does not stimulate the immune system to reject it. A good example for such material is a cellular dermis (brand named "Alloderm"). It does not get rejected and in most areas retains most of its volume over long periods.

Foreign Materials.

http://en.wikipedia.org/wiki/Empty_nose_syndrome

Foreign materials: such as fibrin glue, Teflon, Gore-Tex, and plastipore, which solve the problem of shortage of autografts, are easy to shape and do not tend to get absorbed. However they have a high extrusion rate, and sometimes cause infection. A case study of good retention of hydroxyapatite cement in one patient has been reported in 2000, but the follow-up was only 1 year long.

Autografts.

http://en.wikipedia.org/wiki/Empty_nose_syndrome

Generally speaking, the implant materials can be divided into 3 groups:

Autografts: bone, cartilage, fat, etc. from one site to another in the same patient. The problems here are relative shortage of tissue, and long term studies have shown high absorption rates in the nose. A Chinese study reported long-term success using iliac bone autografts.