2010
DOI: 10.1557/proc-1274-qq08-01
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The Scissors Model of Microcrack Detection in Bone: Work in Progress

Abstract: We have proposed a new model for microcrack detection by osteocytes in bone. According to this model, cell signalling is initiated by the cutting of cellular processes which span the crack. We show that shear displacements of the crack faces are needed to rupture these processes, in an action similar to that of a pair of scissors. Current work involves a combination of cell biology experiments, theoretical and experimental fracture mechanics and system modelling using control theory approaches. The approach wi… Show more

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Cited by 4 publications
(3 citation statements)
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References 15 publications
(12 reference statements)
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“…tenfortsätze (29,30). Diese lokalen Gewebeschädigungen initiieren die Osteozytenapoptose, ein Schlüsselmoment im Beginn des Knochenumbaus (31)(32)(33).…”
Section: Key Pointsunclassified
“…tenfortsätze (29,30). Diese lokalen Gewebeschädigungen initiieren die Osteozytenapoptose, ein Schlüsselmoment im Beginn des Knochenumbaus (31)(32)(33).…”
Section: Key Pointsunclassified
“…3) (13,16,28). Unter Last reiben die Bruchflächen von Mikrorissen wie die Schneiden einer Schere aneinander und durchtrennen die Osteozytenfortsätze (29,30). Diese lokalen Gewebeschädigungen initiieren die Osteozytenapoptose, ein Schlüsselmoment im Beginn des Knochenumbaus (31)(32)(33).…”
Section: Discussionunclassified
“…Many researchers therefore use animal specimens, with advantages being the homogeneity of specimen, plentiful supply and the avoidance of harmful pathogens associated with unembalmed human cadavers [27] [28] [29]. Popular alternatives to human specimens are rusine, ovine, bovine [30] and porcine [31] [32]. The choice of porcine specimens for this study, and particularly those from animals of 6 months old is further supported by the fact that they represent an immature skeleton, such as that of a paediatric patient.…”
Section: Related Workmentioning
confidence: 99%