The origin of Astra implant design
Biomechanical aspects --
Original from " Galileo G (1638) --- Bone size is directly correlated with body weight and activity
Von Meyer H. & C.Culmann(1867) --- There are direct relationship between the structure of cancellous of the bone and direction of loading . The bone structure is similar to the architecture design .
Wolff's law (1892) --- The law of bone transformation
The first one who combined the above two findings .
A bone .. develpos the structure best suited to resist the force acting upon it.
Wolff's law applies to pro tennis players
Humeral cortical thickness on playing side is greater by 34.9% on men and 28.4% on women compared with control side . ( Jones HH et al 1977 Bone Joint Surg Am 204-208)
Wolff's law applies to astronauts
A device delivering a mechanical impluse intended to mimic the heel strike transient
(Goodship et al 1998 Acta Astronaut 65-75)
Original from " Galileo G (1638) --- Bone size is directly correlated with body weight and activity
Von Meyer H. & C.Culmann(1867) --- There are direct relationship between the structure of cancellous of the bone and direction of loading . The bone structure is similar to the architecture design .
Wolff's law (1892) --- The law of bone transformation
The first one who combined the above two findings .
A bone .. develpos the structure best suited to resist the force acting upon it.
Wolff's law applies to pro tennis players
Humeral cortical thickness on playing side is greater by 34.9% on men and 28.4% on women compared with control side . ( Jones HH et al 1977 Bone Joint Surg Am 204-208)
Wolff's law applies to astronauts
A device delivering a mechanical impluse intended to mimic the heel strike transient
(Goodship et al 1998 Acta Astronaut 65-75)
posted by periobin at 8:54 PM
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