Master CAM

Abstract With the great progress on the transition of mankind's living type attitude and medical science, mankind's present average life span is all in the extension year by year, increasing year by year thereupon of old patient. And, often the information in recommending " raising the body health care " in recent years, obviously raise another sport that the body has become the whole people too. With the upsurge of general knowledge of the health care, the comparative attention health care which the person at present changes too; And the one that begin year by year in the human proportion of health care in bone health care is when increases. People's skeleton, joint will often because degradate or long run and result in wearing and tearing, produce the pain or unable to offer the good movement function. Serious to guard failing to respond to any medical treatment, when or it is limited and out of shape to appear the joint activity ownly in the joint pathological change, it is out of shape and will improve the joint function that the artificial joint can obviously lighten the symptom, correct to replace the skill. And the osteocarcinoma, arthritis It is a common bone disease to wait a moment, and people begin to invest a large number of research of doing this respect of resource. The statistics show, the artificial joint is replaced and can be up to more than 150,000 completely every year in U.S.A., and while increasing gradually, it becomes one of the most common operations of dept. of orthopedics ownly. And the artificial bone will be stridden forward in the convenience, using good direction; For enable mankind walk long-term, we is it is it study artificial bone research of this to invest to begin.

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arthrodesis osteotomy 2

hemiarthroplasty 3

Jean Judet Robert Judet Haboush Haboush John Charnley Charnley Charnley Wrightington Charnley Charnley 4

Charnley polyethylen Charnley polymehtylmethacrylate total hip replacement) Charnley Charnley Charnley Charnley Charnley Charnley 5

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(Titanium) (Cobalt-Chrome) (Stainless steel) (Polyethylene) (Porous coating) (Metal Back) (Metallosis) 9

(Bone cement) ( Bone cenent) (cementless) (nearly inert) (porous) (bioactive) (resorbable) 10

Types of implant Types of attachment Example (1) Nearly inert Mechanical interlock (Morphological fixation) Metals, Alumina, Zirconia, Polyethylene (PE) (2) Porous Ingrowth of tissues into pores Hygroxyapatite (HA), (biological fixation) HA coated porous metal (3) Bioactive Interfacial bonding with tissues (bioactive fixation) Bioactive glass, HA, Bioactiveglass-ceramics (4) Resorbable Replacement with tissues Tricalcium phosphate, Polylactic acid (PLA) 11

(Craniofacial Reconstructive Surgery) CAD/CAM 12

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铣 18

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clefect 28