Measuring Plantar Pressures in Diabetic Patients With Lateral Forefoot Amputation

This study aims to understand how pressure is placed on the bottom of the foot when people walk after a lateral forefoot amputation (for example, removal of the 5th toe). Podiatrists have noticed that people with this type of amputation often develop new foot wounds (ulcers) than other types of foot amputation. By measuring foot pressure during walking, we hope to: * Identify areas of high pressure ("hotspots") * Understand walking patterns after amputation * Identify biomechanical factors related to diabetic ulcers and foot amputations * Design better footwear and insoles in the future based on this information The hypothesis is that people with lateral forefoot amputation have higher plantar pressures on the remaining parts of their foot.

Inclusion Criteria: * Age ≥ 21 years * Diagnosed with type 2 diabetes * Presence of a healed unilateral lateral forefoot amputation (at least 5th MPJ, up to any level including the 2nd toe and 2nd ray) * Ability to walk 10 meters unaided or with simple devices * Of sound mind to communicate, follow instructions, and consent independently * English or Chinese speaking Exclusion Criteria: * Amputation or partial amputation of the hallux and any bones higher than midfoot (cuneiforms, cuboid, navicular, calcaneus) on the affected foot * Major lower limb amputation (above ankle), of other leg * Severe gait impairments unrelated to foot amputation (stroke, foot drop etc) * Other foot deforming disease such as, but not limited to, charcot neuroarthropathy, rheumatoid arthritis etc.