Orthopedic fixation device

Bloactive Glasses Bloactive Glass-Ceramics Orthopedic Fixation Devices... 

The metals commonly used in medical devices are stainless steel (Types 316 and 316 L), cobalt-chromium-based alloys, titanium, and titanium-based alloys. Metals are used extensively in orthopedic surgery for load-bearing devices, such as artificial joints and fixation devices (wires, pins, screws fracture plates, etc.). Other metals include tantalum, gold, and mercury alloys the latter two are used predominantly in dentistry. 

PDS demonstrated no acute or toxic effects on implantation, and thus has been used in a number of clinical applications ranging from suture materials to bone fixation devices. Johnson and Johnson Orthopedics provides an absorbable pin for fracture fixation, and bone pins have been introduced into the market under the names OrthoSorb and Ethipin, respectively, in the USA and Europe. In craniofacial applications, the structure of PDS has been examined clinically in cranial vault procedures with promising results. Advantages include the absence of observed intracranial translocation, acceptable aesthetic outcomes and low complication rates. Nevertheless,... 

Appiications adhesives, coatings, foams, laminates, medical (bone fixation devices, cardiovascular, drug delivery, orthopedics, plastic surgery, sutures, tissue engineering) ... 

K.A. Thomas, S.D. Cook, A.F. Harding, and R.J. Haddad Jr., Tissue reaction to implant, corrosion in 38 internal fixation devices. Orthopedics, 11, 441-451 (1988). 

Barber F.A. Resorbable fixation devices a product guide Orthopedic Special Edition 4 (1998), p. 1111-1117... 

As it was previously mentioned, human body tissues and structures may suffer a variety of destructive processes, including fracture, infection and even cancer, causing pain and loss of function. Under these circumstances, it may be possible to remove the diseased tissue and replace it with some suitable synthetic material [20]. One of the most important applications of biomaterials in medicine are the orthopedic implant devices and the lost bone tissue replacement. In this sense, the most used polymeric biomaterial is PMMA. Due to its biocompatible nature and tuneable mechanical properties, it has been widely used as bone cements and as screws in bone fixation. This is one of the main reasons why PMMA and its derivatives have been successfully used in vertebroplasty and are the most common adhesive to anchor prostheses. 

Moreover, a rarmber of different prosthetic devices based on PLA have been developed in orthopedic fixation or as bone substitution materials. The choice of this PLA polymer is... 

In-Vivo Percutaneous Implant Experiment. The principle of percutaneous attachment has extensive application in many biomedical areas, including the attachment of dental and orthopedic prostheses directly to skeletal structures, external attachment for cardiac pacer leads, neuromuscular electrodes, energy transmission to artificial heart and for hemodialysis. Several attempts to solve the problem of fixation and stabilization of percutaneous implants(19) have been made. Failures were also attributed to the inability of the soft tissue interface to form an anatomic seal and a barrier to bacteria. In the current studies, the effect of pore size on soft tissue ingrowth and attachment to porous polyurethane (PU) surface and the effect of the flange to stem ratio and biomechanical compliance on the fixation and stabilization of the percutaneous devices have been investigated.(20)... 

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