Computer-assistant femoral intertrochanteric fracture positional and alignment semi-automatic restoration method

A computer-aided, trochanteric technology, applied in the field of digital medicine, can solve the problems of noise, missing, interspersed and deformed bone models

Inactive Publication Date: 2019-03-29
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing splicing and repair of bone fragments has a low degree of automation and mainly relies on the experience of doctors
The situation of comminuted fractures is complicated, the broken bone model has noise, loss, inters

Method used

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  • Computer-assistant femoral intertrochanteric fracture positional and alignment semi-automatic restoration method
  • Computer-assistant femoral intertrochanteric fracture positional and alignment semi-automatic restoration method
  • Computer-assistant femoral intertrochanteric fracture positional and alignment semi-automatic restoration method

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Experimental program
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Embodiment

[0088] A computer-aided semi-automatic reset method for alignment and alignment of intertrochanteric fractures, combining figure 1 The flowchart shown includes the following steps:

[0089] Step 1: in the Mimics software, the images obtained by CT medical scanning (such as figure 2 shown in a) to build a three-dimensional femoral mesh model (such as figure 2 shown in b).

[0090] Step 2: Extract the geometric information of the 3D bone fragment model from the 3D femoral mesh model obtained in step 1, and generate the bone fragment information set BFI, whose expression is

[0091]

[0092] Among them, the broken bone information B={B 1 ,B 2 ,...,B n}, B i Indicates the i-th bone fragment information in the bone fragment information set; G j Represents the geometric elements of the 3D model of bone fragments, including the geometric surface G f , side G e , point G v ; I k Indicates the patient information to which the broken bone belongs, including the patient's...

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Abstract

The invention discloses a computer-assistant femoral intertrochanteric fracture positional and alignment semi-automatic restoration method including: 1) with the broken bone three-dimensional model generated by a CT image as an information input source, extracting the geometric information and topologic relationship of the three-dimensional network model; 2) extracting the fracture surface and related force lines of caput femoris and femoral shaft; 3) determining a restoration position required in clinical medicine by means of a positional-alignment iteration method to complete the semi-automatic restoration of the intertrochanteric fracture. In the invention, on the basis of basic requirement on the closed reduction of the femoral intertrochanteric fracture, medical requirement on the broken bone joint is satisfied; then by means of positional-alignment iteration for calculation, preoperative planning demand of medical personnel is satisfied and working efficiency is increased just through a less amount of human-computer interaction.

Description

technical field [0001] The invention belongs to the field of digital medical treatment, and in particular relates to a computer-aided semi-automatic reset method for the alignment of femoral intertrochanteric fractures. Background technique [0002] With the rapid development of computer science, the connection between digital technology and orthopedics has become increasingly close, resulting in digital orthopedics, which has brought about profound changes in the traditional orthopedics and its clinical research model, gradually shifting from empirical, generalized, contoured to standardized , precision, personalization, digitization and automation. [0003] Preoperative planning is a critical stage in fracture repair surgery. For simple fractures, preoperative planning can be done through X-ray images. However, for complex comminuted fractures, many small broken bones will be produced, and the bones may also be bent and shifted. This requires the construction of a three-...

Claims

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Application Information

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IPC IPC(8): A61B34/10
CPCA61B34/10A61B2034/101
Inventor 邓子越蒋俊锋陈正鸣黄瑞何坤金
Owner HOHAI UNIV CHANGZHOU
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