Chronic Ankle Instability

Brotzman, S. Brent; Jasko, John J.

doi:10.1016/b978-0-323-39370-6.00041-x

Cited by 1 publication

(1 citation statement)

References 16 publications

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“…The maximum stresses around the ankle trim lines of a SAFO are often observed in individuals with conditions such as neuromuscular disorders, musculoskeletal issues or injuries affecting the ankle and foot, including conditions such as cerebral palsy, muscular dystrophy, stroke-related impairments and post-traumatic injuries. These conditions can lead to concentrated stress in the ankle region, making it more susceptible to instability (De Rita, 2018). Therefore, SAFOs are specifically designed to provide support and stability to these vulnerable areas, with the aim of preventing injuries and enhancing ankle and foot function in individuals with these underlying medical conditions.…”

Section: Mesh Quality Assessment Resultsmentioning

confidence: 99%

Design and analysis of solid ankle foot orthosis by employing mechanical characterization and a low-cost scanning approach for additive manufacturing

Abas,

Habib,

Noor

2024

RPJ

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Purpose This study aims to investigate the fabrication of solid ankle foot orthoses (SAFOs) using fused deposition modeling (FDM) printing technology. It emphasizes cost-effective 3D scanning with the Kinect sensor and conducts a comparative analysis of SAFO durability with varying thicknesses and materials, including polylactic acid (PLA) and carbon fiber-reinforced (PLA-C), to address research gaps from prior studies. Design/methodology/approach In this study, the methodology comprises key components: data capture using a cost-effective Microsoft Kinect® Xbox 360 scanner to obtain precise leg dimensions for SAFOs. SAFOs are designed using CAD tools with varying thicknesses (3, 4, and 5 mm) while maintaining consistent geometry, allowing controlled thickness impact investigation. Fabrication uses PLA and PLA-C materials via FDM 3D printing, providing insights into material suitability. Mechanical analysis uses dual finite element analysis to assess force–displacement curves and fracture behavior, which were validated through experimental testing. Findings The results indicate that the precision of the scanned leg dimensions, compared to actual anthropometric data, exhibits a deviation of less than 5%, confirming the accuracy of the cost-effective scanning approach. Additionally, the research identifies optimal thicknesses for SAFOs, recommending a 4 and 5 mm thickness for PLA-C-based SAFOs and an only 5 mm thickness for PLA-based SAFOs. This optimization enhances the overall performance and effectiveness of these orthotic solutions. Originality/value This study’s innovation lies in its holistic approach, combining low-cost 3D scanning, 3D printing and computational simulations to optimize SAFO materials and thickness. These findings advance the creation of cost-effective and efficient orthotic solutions.

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Section: Mesh Quality Assessment Resultsmentioning

confidence: 99%