Abstract
Introduction: Plantar ulcers occur in patients with peripheral arterial disease or peripheral neuropathy. Plantar ulcers resulting from the peak plantar pressures often lead to disabilities and even amputations. Using an appropriate offloading device would reduce peak plantar pressures and prevent ulcers. Objectives: To design and analyze a customized lightweight offloading device that will improve patient compliance and provide good aesthetic value, without compromising on efficacy. Computer Aided Design (CAD) software SOLIDWORKS was used to design two different 3-dimensional models of offloading devices. The light weight, energy efficient and cosmetically appealing offloading devices could be a replacement for the traditional offloading devices made of Plaster of Paris, which are bulky and unappealing, leading to poor compliance. Results: The computer simulation studies have established the efficacy of the new designs in offloading the foot. Conclusion: The developed designs could be an ideal replacement for traditional offloading devices like the Bohler iron. The designs could improve the user’s compliance and acceptance without compromising on the efficacy. These designs need to be field tested.
Highlights
Leprosy is a chronic infectious disease that causes physical deformity resulting in stigmatization of affected individuals
Neuropathy is common in those affected by leprosy and diabetes
Low cost and an aesthetically appealing offloading device, Total Contact Cast (TCC) with Bohler iron was tested for its efficacy and strength
Summary
Leprosy is a chronic infectious disease that causes physical deformity resulting in stigmatization of affected individuals. More than 200,000 new cases have been reported each year.[1] Neuropathy is common in those affected by leprosy and diabetes. Increased mechanical stress concentrated on the plantar tissues in patients with peripheral neuropathy could lead to plantar foot ulcers.[2] Up to 600 per 100,000 patients with diabetes develop plantar ulcers leading to amputation, about 10 times the rate in the general poulation.[3] Increased peak plantar pressure is a predisposing factor for patients to develop plantar ulcers.[4]
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