Preparing method of finger phalanx skeleton thickening shaping bone block model
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A bone and model technology, applied in the field of finger plastic surgery, can solve problems such as atrophy, unsatisfactory reconstructed finger shape, thin phalanx bone transplantation, etc.
Inactive Publication Date: 2017-07-21
SOUTHERN MEDICAL UNIVERSITY
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[0003] After the reconstruction of the thumb, some patients have clinically found that the phalanx is thinner or the grafted bone is atrophic, resulting in an un
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Embodiment 1
[0035] A method for preparing a bone block model of finger phalanx bone thickening and shaping, comprising the following steps:
[0036] (1) Collect the CT data of both hands of the target object, perform 3D reconstruction to obtain a 3D model of the virtual hands' skeleton;
[0037] (2) The reconstructed model data is imported into the three-dimensional printer, and the physical model of the skeleton of both hands is printed out;
[0038] (3) Draw the morphological contour of the phalanx on the healthy side, and cut to obtain the normal phalanx contour range;
[0039] (4) Comparing the shape of the phalanx on the affected side, drawing and cutting to obtain the size and shape of the defective phalanx;
[0040] (5) Measure the long diameter and short diameter of the defective phalanx, and record the values;
[0041] (6) According to the measured value and shape of the defective phalanx, the bone block model was cut and polished to obtain a repaired bone block model, and the ...
Embodiment 2
[0054] The method is described by taking a target object after reconstruction of a finger as an example.
[0055] A method for preparing a bone block model of finger phalanx bone thickening and shaping, comprising the following steps:
[0056] (1) collect the CT data of both hands of the target object, carry out three-dimensional reconstruction to obtain the three-dimensional model 10 of both hands, and step (1) specifically adopts three-dimensional reconstruction software Mimics 13.01 to carry out three-dimensional reconstruction to obtain the three-dimensional model of both hands, such as figure 1 shown.
[0057] (2) Print out the physical model 20 of both hands, and plasma disinfection is standby, as figure 2shown. The specific 3D printing material used is polylactic acid. Set the printing properties of the 3D printer and adjust it to a high-precision printing state. Specifically, the printing accuracy in this state is 0.2mm. Adjust the printing plane of the 3D printer s...
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Abstract
The invention relates to a preparing method of a finger phalanx skeleton thickening shaping bone block model. The preparing method includes the following steps that (1), the double-handle CT data of a target object is collected, and a virtual double-handle skeleton three-dimensional model is obtained through three-dimensional reconstruction; (2), reconstruction model data is guided into a three-dimensional printer, and a double-handle skeleton physical model is printed; (3), an uninjured side phalanx form outline is drawn, and the normal phalanx outline range is obtained through clipping; (4), the injured side phalanx form is compared, and the phalanx size and form of the coloboma part are obtained through drawing and clipping; (5), the long diameter and the short diameter of the coloboma phalanx part are measured, and digital numbers are recorded; (6), the bone block model is cut and ground according to the measurement digital numbers and form of the coloboma phalanx part to obtain a repaired bone block model, and the obtained repaired bone block model morphologically approaches the form of the coloboma phalanx part. Finger phalanx skeleton thickening shaping is carried out through the method, the form of the obtained repair bone block model approaches the height of the coloboma phalanx part, and form recovery of phalanx thickening shaping can be achieved well.
Description
technical field [0001] The invention relates to the technical field of finger shaping, in particular to a method for thickening and shaping finger phalanx bones. Background technique [0002] Finger replantation and reconstruction surgery is an important technical means to solve finger trauma and missing patients. The function of the thumb accounts for 40% of the hand function. Clinically, thumb loss caused by various reasons often requires replantation and reconstruction. The commonly used surgical methods are: Free second toe transplantation and reconstruction, free bone block transplantation and reconstruction surrounded by nail flap, etc. [0003] After the reconstruction of the thumb, it was clinically found that some patients had thinner phalanx or atrophy of the grafted bone, resulting in unsatisfactory shape of the reconstructed finger and dissatisfaction with the surgical effect. Among them, how to restore the shape of the phalanx and achieve a shape close to the n...
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