The pathologic examination should be able to shed light on the physiopathogenesis (Part 7) of algodystrophy. Unfortunately, since its description in 1901 by Sudeck, this condition has not been submitted to investigations concerning its pathology and bearing on larger series, on all localizations, on all tissues, and on all stages. The more or less spontaneous healing certainly does not encourage one to perform systematic biopsies. Moreover after Leriche  pointed out the underlying vasomotor imbalance, most authors admitted that biopsy would not be as harmless as had been thought. One may well hesitate to add the trauma of a biopsy when the factors provoking algodystrophy are supposed to be of the reflex sympathetic type. To our knowledge, however, nobody has ever shown that surgical biopsy performed in algodystrophy during the evolutive phase has aggravated the condition or delayed healing; but neither has the contrary been demonstrated.
KeywordsFemoral Head Bone Biopsy Bone Scanning Spongy Bone Osteoclastic Resorption
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