Regional osteopenia describes a localized or regional decrease in bone mineral density.
Pathology
Etiology
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disuse osteopenia (usually aggressive osteoporosis with pseudopermeative pattern)
immobilization of fractures
paralyzed segments
bone and joint infections
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complex regional pain syndrome (a.k.a. Sudeck atrophy / reflex sympathetic dystrophy syndrome)
post-traumatic
post-infective states
myocardial infarction
calcific tendinitis
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infection
early infectious invasion of the synovium 2
early osteomyelitis
erosive arthritis, e.g. rheumatoid arthritis
lytic phase of Paget disease
early bone infarct
See also
osteopaenia - general article
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