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Synthetic BIOMATERIALSPolymers Skin/cartilage Drug Delivery Devices Ocular implants Bone replacements Orthopedic screws/fixation Ceramics Metals Heart valves Synthetic BIOMATERIALS Semiconductor Materials Dental Implants Dental Implants Biosensors Implantable Microelectrodes
Biomaterial Science Biomaterials cover all classes of materials which includes metals, ceramics, and silicone. This diagram shows some examples of where certain types of materials can be used. For example ….
Bileaflet Heart Valves
Intraocular Lenses Implantation often performed on outpatient basis.
Vascular Grafts Must Be Flexible. Designed With Open Porous Structure.Often Recognized By Body As Foreign.
Normal versus Arthritic HipNormal Hip: note the space between the femur and acetabulum, due to cartilage Arthritic Hip: No space visible in joint, as cartilage is missing
Two attachment methodsusing a Polymethylmethacrylate (PMMA) cement to adhere the metal to the bone using a porous metal surface to create a bone ingrowth interface
Overview of femoral replacementthe acetabulum and the proximal femur have been replaced. The femoral side is completely metal. The acetabular side is composed of the polyethylene bearing surface
Load transfer in Composite materialsThe two materials are bonded and equal force is applied to both
Comparison: Moduli of ElasticityModulus of elasticity of different implant materials and bone (in GPa)
Implant bonding A bonded interface is characteristic of a cemented prosthesis (left) non-bonded interface is characteristic of a non-cemented press fit prosthesis (right)
Degradation Problems Example of fractured artificial cartilage from a failed hip replacement
Massachusetts Institute of Technology Harvard Medical School Brigham and Womens Hospital VA Boston Healthcare System 2.782J/3.961J/BEH.451J/HST524J DESIGN.
Vahan Cepkinian, M.D. Orthopaedic Surgery
History of Artificial Joints
Reference: Medical Multimedia Group (
Total Hip Replacements About 160,000 THRs performed every year 90% of all hip replacements need some sort of revision No. 1 reason for revision is loosening.
TOTAL HIP REPLACEMENT Presented by: Atillio Castellani Brendan Cochren
Biomaterials By: Vinita Mehrotra
Dr.A.K.Venkatachalam MS Orth, DNB Orth, FRCS, M.Ch Orth Consultant Orthopedic surgeon Associate professor Chennai THR in mal-united acetabular fractures-
UPDATE IN EOA 65 AC 2013 Dr: Khaled F Ebido Ortho specialist AL Hada Hospital.
Biomaterials and Material Testing: Chapter /1/ Marrow stem cells could heal broken bones, Betterhumans Marrow.
بنام خداوند جان وخرد. Reasons for Hip Replacement Osteoarthritis (OA) Trauma and post-traumatic arthritis Congenital deformities Bone tumors Avascular.
Tissue Engineering: a new healthcare technology. Biomaterials Biomaterials science may be the most multidisciplinary of all the sciences which encompasses.
Use of Porous Tantalum for Acetabular Reconstruction in Revision Hip Arthroplasty by Paul S. Issack J Bone Joint Surg Am Volume 95(21): November.
BIOMATERIALS ENT 311/4 Course overview
Tissue Engineering: a new healthcare technology Asma Yahyouche Biomaterials Group Department of Materials, University of Oxford Parks Road, Oxford, OX1.
Roles of Implants Add stability Replace damaged or diseased part
University of Medicine and Dentistry of New Jersey John L. Ricci, Ph.D., Department of Orthopaedics History and Scope of Biomaterials J. L. Ricci, Ph.D.
Materials. Materials used as replacement parts in the skeletal system include: Silicone Ultra High Weight Polyethylene (UHMWPE) Super Alloy Cement – to.
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