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Recurrence of acute Charcot neuropathic osteoarthropathy after conservative treatment
Georg Osterhoff1, Thomas Böni, Martin Berli
1Department of Orthopedics, University of Zurich, Balgrist, Zurich, Switzerland.
Background:
Charcot neuropathic osteoarthropathy (CN) is a chronic, progressive-destructive process affecting the feet of patients with sensory neuropathy. Data on CN recurrence are underrepresented in the literature. The aim of the present study was to evaluate the rate of CN recurrence after its treatment and to find predisposing factors.
Methods:
Fifty-two patients (age 59 ± 11 years, 16 female) with acute CN with 57 affected feet were enrolled. Comorbidities, localization, and stage of disease at first diagnosis as well as ulcerations, need for surgery, noncompliance, and subsequent treatment (orthopedic footwear or orthotic treatment) during the course of therapy were recorded. During follow-up, the incidence of recurrence of CN was observed. Mean follow-up was 47 ± 40 months.
Results:
Diabetes was the most common reason for sensory neuropathy (79%). Recurrence of CN was seen in 13 feet (23%) with an interval of 27 ± 31 months (range, 3-102 months) after the end of initial immobilization. Patients with recurrence were immobilized for a shorter period of time and had a more advanced stage of CN at time of first diagnosis. Predictors of recurrence were noncompliance (odds ratio 19.7; confidence interval, 4.1-94.4; P < .001) and obesity (odds ratio 6.4; confidence interval, 1.6-25.9; P = .06).
Conclusions:
Recurrence of osteoarthropathic activity is a possible complication after conservative treatment of CN. Obesity and noncompliance are strong predictors for the recurrence of CN.
Level Of Evidence:
Level III, retrospective comparative study.
