https://en.wikivet.net/index.php?action=history&feed=atom&title=Osteoporosis 2026-08-23T10:52:41Z Revision history for this page on the wiki MediaWiki 1.35.0 https://en.wikivet.net/index.php?title=Osteoporosis&diff=109896&oldid=prev 2011-03-03T11:56:58Z

<p>Created page with &quot;Osteoporosis (Atrophy) *Lesion, not a disease *Reduction in bone mass due to reduced osteoid (bone atrophy) *Bone resorption exceeds formation -&gt; pathological loss of bone *Resor...&quot;</p> <p><b>New page</b></p><div>Osteoporosis (Atrophy)<br /> *Lesion, not a disease<br /> *Reduction in bone mass due to reduced osteoid (bone atrophy)<br /> *Bone resorption exceeds formation -&gt; pathological loss of bone<br /> *Resorbed from:<br /> **Trabeculae, preserving the weight bearing ones until last<br /> **Endosteal surface of cortical bone<br /> **Along vascular channels<br /> *Longitudinal section<br /> **Fewer thin trabeculae<br /> **Enlarged medulla<br /> **Thin, porous cortex<br /> *Bone which remains is normally mineralised<br /> *Can be localised or generalised*Caused by:<br /> **Starvation - in farm animals due to protein and energy deficiency<br /> **Nutritional deficiency (calcium) and hypocalcaemia -&gt; bone resorption<br /> **Senility<br /> ***Physiological loss of skeletal mass with age<br /> ***May be excessive in some individuals<br /> ***Histologically - dead [[Bones - Anatomy &amp; Physiology|osteocytes and empty lacunea]]<br /> **Physical inactivity (disuse) - muscular inactivity and reduced weight bearing, e.g. during limb casting<br /> **Glucocorticoids<br /> **[[:Category:Enteritis, Parasitic|Intestinal parasitism]] - in ruminants, malabsorption due to severe infestation<br /> **[[Congenital and Neonatal Disease - Pathology#Copper Deficiency|Copper deficiency]] - in lambs, calves, foals, pigs and dogs -&gt; brittle bones<br /> *May be reversed in young growing animals<br /> <br /> [[Category:Bones - Degenerative Pathology]]</div>

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