Oseointegration

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  • Topic: Prosthetics, Amputation, Prosthesis
  • Pages : 4 (943 words )
  • Download(s) : 65
  • Published : May 14, 2013
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MAHAM ZAHID
ROLL#300
SEMESTER: 4TH

OSSEOINTEGRATION:
INTRODUCTION:
Osseointegration has been derived from the Greek word osteon, which means “bone”, and the Latin word integrare, which means “to make whole”. The term refers to the direct structural and functional connection between living bone and the surface of a load-bearing artificial implant i.e. the formation of a direct interface between an implant and bone, without intervening soft tissue. Or the interface between alloplastic materials such as metal, ceramic, plastic and bone. Fig.1: Fixation of bolt in residual bone (Adapted from http://www.oandp.com/articles/images/2006-09_03/3-1.jpg) BACKGROUND:

Fig. 2: Titanium implant (black) integrated into bone (red): Histologic section (Adapted from http://upload.wikimedia.org/wikipedia/commons/b/bc/Osseointegration_Histology.jpg) Brånemark of Sweden conducted an experiment in 1952, where he utilized a titanium implant chamber to study blood flow in rabbit bone. When he removed the titanium chambers from the bone, he discovered that the bone had integrated so completely with the implant that the chamber could not be removed. Brånemark called the discovery "osseointegration," and found the possibilities for human use. Applications:

* Dental implants
* Craniofacial prosthesis, ear prosthesis, maxillofacial, orbital prosthesis, nose prosthesis * Bone anchored limb prostheses
* Bone anchored hearing conduction amplification
* Knee and joint replacement
OSSEOINTEAGRATION IN FIELD OF PROSTHETICS:
Osseointegration is a new method of attaching the prosthesis to the body. This method is also sometimes referred to as exoprosthesis (attaching prosthesis to the bone), or endo-exoprosthesis. Abutment

Fig.3: Transfemoral osseointegrated prosthesis (Osseointegration Google images)...
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