{"product_id":"microcracks-and-the-fatigue-behaviour-of-compact-bone-von-fergal-obrien","title":"Microcracks and the fatigue behaviour of compact bone","description":"\u003cp\u003eMicrocracks in bone acts as a stimulus for bone  remodelling, contributes to the loss of bone  quality in osteoporosis and the formation of  fragility and stress fractures.  This study developed a novel method of crack  detection to label microcrack initiation, growth  and coalescence during bone fatigue. The results  show that cracks accumulate early in a bone''s  life but the rate of growth slows until before  a second increase in accumulation just prior to  failure. The majority of microcracks are found in  interstitial bone between osteons with crack growth  occurring parallel to the longitudinal axis of the  bone resulting in an elliptical shape with a 5:1 longitudinal: transverse ratio. This supports the  concept of a microstructural barrier effect whereby  osteons act as barriers to crack propagation in  compact bone.  However, it shows that this  microstructural barrier effect is dependent on  crack length. For the vast majority of cracks,  osteons act as barriers to growth but for  the minority of cracks that are long enough and do  break through the cement line, an osteon may  actually act as a weakness in the bone and  facilitate crack propagation.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838331836\"\u003e\u003ch3\u003eBone microstrucure as a barrier to crack propagation\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838331836","offer_id":39499074240605,"sku":"9783838331836","price":68.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/b7262c71-7d7e-490c-a0d8-2a64591e56a3.jpg?v=1757655711","url":"https:\/\/shop.autorenwelt.de\/products\/microcracks-and-the-fatigue-behaviour-of-compact-bone-von-fergal-obrien","provider":"Autorenwelt Shop","version":"1.0","type":"link"}