Effect of Computer Assisted Designing / Manufacturing (CAD-CAM) Insoles in Leprosy Affected Patients

Abstract

Background: Elevated plantar pressures during walking are a causative factor in the development of plantar ulcers. Plantar pressure can be redistributed but not eradicated and reducing stress at one location may simply displace the risk of ulceration to a different area of the foot. To achieve such redistribution, computer-assisted designing/manufacturing (CAD/CAM) technology was used to fabricate the insole with improved customization for patients with anesthetic feet due to leprosy. Objective: The objective of this study was to assess the effect of the CAD-CAM insoles in leprosy patients, using a close-ended questionnaire. Methodology: A qualitative cross-sectional study was conducted to identify the impact of CAD-CAM insole on footwear. Random sampling was done to recruit leprosy-affected patients coming to the institute. With a 3 month of period, the data were collected through the feedback from the patients. Result: 40 patients’ feedback was taken there was both positive and negative feedback from the patients. The ulcer healing has significantly increased among 60 % of the patients. 90 % of patients were comfortable with the weight of the CAD-CAM footwear when compared to previous footwear (MCR) which they were using. Conclusion: Significant improvement was found among the patients. Key words: Leprosy, CAD-CAM insole, plantar ulcers, Peak pressure distribution.