An Acoustic Approach for Detection of Developmental Dysplasia of Hip

摘要

An acoustic non-invasive approach for detection of Developmental Dysplasia of Hip (DDH) was investigated. The proposed method was tested using different benchtop simplified models of the hip joint. Models were stimulated with band-limited white acoustic noise (10-2500 Hz) and the response of the model was measured. The transfer function, coherence, and phase were determined for different simulated hip dysplasia levels and for simulated normal cases. Results showed that the transfer function, coherence and phase were affected by dysplasia occurrence. Larger effects were seen for more simulated severe dysplastic hips. This suggests that the proposed approach may have potential for DDH detection. Further investigations in animal models and humans are warranted to document accuracy of the proposed approach.