PubMed · 688912
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S Einola. 1978. [Charcot's joint].. https://pubmed.ncbi.nlm.nih.gov/688912/
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Charcot arthropathy is a disabling complication of diabetic neuropathy. It is however, unclear why it occurs in only a small number of neuropathic patients. We have studied 12 diabetic patients (10 insulin-dependent) with an acute Charcot arthropathy, and compared their neuropathy and vascular responsiveness with 12 diabetic patients (10 insulin-dependent) with recurrent neuropathic foot ulceration, 12 diabetic control subjects (9 insulin-dependent) and 10 normal non-diabetic subjects. The Charcot arthropathy patients demonstrated a preservation of warm perception, 6 (5.5) degrees C, but complete loss of peripheral cold perception, 10 (0) degrees C, p less than 0.001 (median (interquartile range)). This contrasted with the ulcerated neuropathy patients, who had equally severe impairement of both warm and cold sensory thresholds, 10(0.5) degrees C vs 10(1) degrees C, respectively, the diabetic control subjects who were able to detect a 2 (1.3) degrees C warm stimulus and 3 (3.5) degrees C cold stimulus and the normal subjects, whose warm threshold was 2 (1) degrees C and cold was 2 (1) degrees C. Light touch perception at the foot was preserved in the Charcot patients 4 (4) g vs 100 (50) g, p less than 0.0002, in the ulcerated neuropathy patients. Vibration perception at the great toe and cardiovascular autonomic function tests (heart rate variability, Valsalva ratio and postural systolic blood pressure fall) were abnormal in both the Charcot patients and ulcerated neuropathy group, with no differences seen between the two groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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This article focuses on the application of the carbon dioxide (CO2) laser at various levels of power density to achieve a level of efficacy in tissue ablation for cutaneous and deep indolent ulcerations that afflict the lower extremities. This article also supports theories of the CO2 laser generating a sterile nonpathogenic environment within ulcers. A cross section of various ulcer types are used to determine duration of healing.