Complex Regional Pain Syndrome Stage 1 or Charcots Neuroarthropathy Stage 0?

NewsBot · Nov 26, 2015

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Sudeck's disease stage 1, or diabetic Charcot's foot stage 0? Case report and assessment of the diagnostic value of MRI
Ludger W Poll , Philipp Weber, Hermann-Josef B?hm, Nahid Ghassem-Zadeh, Ernst A Chantelau
Diabetology & Metabolic Syndrome; December 2010, 2:60

Background
The diagnosis of Sudeck's syndrome stage 1 (nowadays termed complex regional pain syndrome I, abbreviated CRPS I) is based on clinical features, namely swelling and pain in a limb. Plain X-ray may be normal. In the absence of pain sensitivity, e.g. in diabetic neuropathy, CRPS I of the foot can be mistaken for Charcot's foot stage 0 (so-called neuro-osteoarthropathy).
Case presentation
The case of a type-1 diabetic woman is reported, in whom CRPS I following a calcaneal fracture was mistaken for Charcot's osteoarthropathy (because of bone marrow edema displayed by conventional MR imaging). In addition, a review is presented on 6 consecutive cases with CRPS I of the foot, and on 20 cases with Charcot's foot stage 0, with particular emphasis on MR imaging findings. The number of bones per foot affected with marrow edema was similar in either condition, with a tendency towards a more patchy, diffuse distribution of bone marrow edema in CRPS I. Bone marrow edema apparently regressed more promptly in response to treatment in Charcot's foot stage 0.
Conclusion

Differentiation of CRPS I from Charcot's foot stage 0 remains a diagnostic dilemma in patients with pain insensitivity. Conventional MRI may be helpful, when repeated for monitoring the treatment response.
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NewsBot · May 23, 2021

Stage 0 Charcot Neuroarthropathy in the Diabetic Foot: An Emerging Narrow Window of Opportunity?
Raju Ahluwalia et al
Int J Low Extrem Wounds. 2021 May 7

In a world where popular culture and concepts can become the norm without all the rigors of normal scrutiny, our attention is focused on identifying Charcot neuroarthropathy (CN) at a stage before radiological bone destruction occurs. The rationale is that early recognition can prevent a destructive chain of events and thus potentially reduce the burden to patients and health care providers. In this article, we describe the evolution of stage 0 CN, and the use of modern imaging in characterizing the abnormalities recognized by these modalities and how they aid our understanding and supplement our knowledge. We review the potential of these imaging modalities, assessing how far we have come in characterizing stage 0 and if we have robust criteria for the identification of stage 0 in the natural history of CN.
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