Calcaneal-fracture-closed-reduction-internal-fixation assisting method based on digitized 3D printing tool

A calcaneal fracture, 3D printing technology, applied in computer-aided planning/modeling, additive processing, etc., can solve the problem of inability to intuitively understand the details of calcaneal fractures, inability to intuitively repeat surgery planning, simulated surgery, and inability to determine internal Fixing device type, model and other issues to achieve the effect of reducing surgical injury, reducing trauma and complications, and reducing operation time

Inactive Publication Date: 2018-11-02
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] 1. Before the operation, the details of the calcaneal fracture cannot be intuitively understood;
[0015] 2. Before the operation, it is impossible to intuitively and repeatedly carry out surgical planning and simulated surgery, so as to determine the operation plan of calcaneal fracture closed reduction and internal fixation;
[0016] 3. Before the operation, the type and model of the internal fixation device cannot be completely determined;
[0017] 4. During the operation, a small incision is still required to expose the subtalar articular sur...

Method used

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  • Calcaneal-fracture-closed-reduction-internal-fixation assisting method based on digitized 3D printing tool
  • Calcaneal-fracture-closed-reduction-internal-fixation assisting method based on digitized 3D printing tool
  • Calcaneal-fracture-closed-reduction-internal-fixation assisting method based on digitized 3D printing tool

Examples

Experimental program
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Effect test

experiment example 1

[0081] Part 1 Preoperative computer design and guidance tool making

[0082] 1. Modeling and analyzing the condition:

[0083] The CT data (DICOM format) of the patient's preoperative calcaneal fracture was imported into the computer, and the "three-dimensional fracture digital model" of the calcaneal fracture was obtained after reconstruction by Mimisc software, so as to fully understand the fracture situation and analyze the condition. Fracture, calcaneus varus 18°, Bohler angle reduced to 11°, subtalar articular surface and calcaneocuboid joint uneven.

[0084] 2. Simulated fracture reduction:

[0085] Save the "three-dimensional fracture digital model" in SLT format, use Magics software to analyze the condition, and implement "fracture block reduction" on the computer. After the reduction, the calcaneus varus is corrected, the Bohler angle returns to 32°, and the subtalar Both the articular surface and the heel-cuboid joint were restored to smoothness.

[0086] 3. Deter...

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Abstract

The invention discloses a calcaneal-fracture-closed-reduction-internal-fixation assisting method based on a digitized 3D printing tool. The method includes the steps of modeling and analyzing an illness state; simulating fracture reduction; determining the position of an internal fixation device; determining positions of reduction kirschner wires after fracture reduction; determining positions ofthe reduction kirschner wires before fracture reduction; designing a steering tool before fracture reduction; designing a fracture internal fixator implantation guide plate; preparing and testing allsteering tools through 3D printing.

Description

technical field [0001] The invention relates to the field of 3D printing and fracture reduction and fixation, in particular to an auxiliary method for closed reduction and internal fixation of calcaneal fractures based on digital 3D printing tools. Background technique [0002] Closed reduction and internal fixation of fractures: refers to a surgical method of closed reduction and internal fixation of fractures. It is a combined process of closed reduction and internal fixation of fractures. [0003] Closed reduction of a fracture: A surgical procedure that restores the correct anatomical relationship between the fracture pieces without incising or exposing the fractured area. [0004] Internal fixation of fractures: A surgical method that connects the fracture fragments into a whole through internal fixation devices such as screws, steel plates, intramedullary nails, and steel wires, and helps the fractures to maintain a relatively fixed position and heal. [0005] Design ...

Claims

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Application Information

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IPC IPC(8): A61B34/10B33Y10/00B33Y50/00B33Y80/00
Inventor 王成功钟达刘华
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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