Int J Comput Assist Radiol Surg - A morphological study of anatomical plates for acetabular posterior column.

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Resumo

RPOSES: The objective of this work is to explore the morphological characteristics of the acetabular posterior column using digital technology, in order to develop anatomical plates for internal fixation of acetabular posterior column fractures.MATERIALS AND METHODS: Three-dimensional reconstruction models of the pelvis were developed from computed tomography scan data of 111 adult patients. From them, the diameter (D) of the femoral head, three approximate arcs along the acetabular posterior column plate path with corresponding radius of curvature [Formula: see text] and [Formula: see text], as well as an angle [Formula: see text] were measured. A statistical analysis was used to determine the most feasible method of designing anatomical plates according to the data.RESULTS: The statistical analysis results showed that [Formula: see text] and [Formula: see text] had no correlations with D, and they also exhibited no statistically significant differences between genders. By examining the correlations between four morphological parameters of the acetabular posterior column, the results showed [Formula: see text] increased along with [Formula: see text] was inversely proportional to [Formula: see text] and [Formula: see text], and [Formula: see text] was independent with little variation. Taking [Formula: see text] as the reference, the data were divided into three groups and three types of anatomical plates were designed according to the three groups of data.CONCLUSION: The anatomical structure of the acetabular posterior column exhibits great individual differences. Anatomical plates designed in this study have higher accuracy than those conventional ones, which is helpful to the quality of fracture reduction and reduce the operation difficult. Meanwhile, they also can be conveniently used in clinic.

Resumo Limpo

rpose object work explor morpholog characterist acetabular posterior column use digit technolog order develop anatom plate intern fixat acetabular posterior column fracturesmateri method threedimension reconstruct model pelvi develop comput tomographi scan data adult patient diamet d femor head three approxim arc along acetabular posterior column plate path correspond radius curvatur formula see text formula see text well angl formula see text measur statist analysi use determin feasibl method design anatom plate accord dataresult statist analysi result show formula see text formula see text correl d also exhibit statist signific differ gender examin correl four morpholog paramet acetabular posterior column result show formula see text increas along formula see text invers proport formula see text formula see text formula see text independ littl variat take formula see text refer data divid three group three type anatom plate design accord three group dataconclus anatom structur acetabular posterior column exhibit great individu differ anatom plate design studi higher accuraci convent one help qualiti fractur reduct reduc oper difficult meanwhil also can conveni use clinic

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