Due to the lack of human avoidance analysis, the orthosis cannot accurately apply orthopedic force
during orthopedic, resulting in poor orthopedic effect. Therefore, the relationship between the human body’s
active avoidance ability and force application is studied to achieve accurate loading of orthopedic force. First, a
high-precision scoliosis model was established based on computed tomography data, and the relationship between
orthopedic force and Cobb angle was analyzed. Then 9 subjects were selected for avoidance ability test grouped
by body mass index calculation, and the avoidance function of different groups was fitted. The avoidance function
corrected the application of orthopedic forces. The results show that the optimal correction force calculated by
the finite element method was 60 N. The obese group had the largest avoidance ability, followed by the standard
group and the lean group. When the orthopedic force was 60 N, the Cobb angle was reduced from 33.77◦ to
20◦, the avoidance ability of the standard group at 50 N obtained from the avoidance function was 20.28% and
10.14 N was actively avoided. Therefore, when 50 N was applied, 60.14 N was actually generated, which can achieve
the orthopedic effect of 60 N numerical simulation analysis. The avoidance effect can take the active factors of
the human body into consideration in the orthopedic process, so as to achieve a more accurate application of
orthopedic force, and provide data reference for clinicians in the orthopedic process.
朱晔1，任东1，张爽2，曹倩3
.
Biomechanical Analysis of Scoliosis Orthopedic Force Loading with Human Avoidance Effect
[J]. Journal of Shanghai Jiaotong University(Science), 2025
, 30(1)
: 187
-196
.
DOI: 10.1007/s12204-023-2620-0
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