CN115670578A - Pelvis tumor kirschner wire bone cutting guide plate and model building method and preparation method thereof - Google Patents
Pelvis tumor kirschner wire bone cutting guide plate and model building method and preparation method thereof Download PDFInfo
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- CN115670578A CN115670578A CN202211419600.2A CN202211419600A CN115670578A CN 115670578 A CN115670578 A CN 115670578A CN 202211419600 A CN202211419600 A CN 202211419600A CN 115670578 A CN115670578 A CN 115670578A
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- kirschner wire
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- guide plate
- tumor
- cutting guide
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 82
- 238000005520 cutting process Methods 0.000 title claims abstract description 66
- 210000004197 pelvis Anatomy 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 206010028980 Neoplasm Diseases 0.000 title description 5
- 208000018084 Bone neoplasm Diseases 0.000 claims abstract description 44
- 210000003049 pelvic bone Anatomy 0.000 claims abstract description 36
- 238000003780 insertion Methods 0.000 claims abstract description 27
- 230000037431 insertion Effects 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 claims abstract description 19
- 210000003692 ilium Anatomy 0.000 claims abstract description 9
- 210000003131 sacroiliac joint Anatomy 0.000 claims abstract description 4
- 206010061336 Pelvic neoplasm Diseases 0.000 claims description 3
- 210000000588 acetabulum Anatomy 0.000 claims description 3
- 210000002239 ischium bone Anatomy 0.000 claims description 2
- 210000003689 pubic bone Anatomy 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000007639 printing Methods 0.000 description 4
- 230000002980 postoperative effect Effects 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000006735 Periostitis Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 210000003460 periosteum Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention discloses a pelvic bone tumor kirschner wire bone cutting guide plate and a model construction method and a preparation method thereof, and belongs to the technical field of medical instruments. The method comprises the following steps: reconstructing CT data of a patient to obtain a three-dimensional model of pelvis bones of the patient, and determining a bone cutting surface, wherein the bone cutting surface is positioned on the sacroiliac joint and penetrates through the sacrum along the whole cutting surface close to the sacrum side; extending along the iliac crest to the posterior superior iliac spine and constructing a bone-attaching surface containing part of the lateral surface of the ilium; constructing at least one Kirschner wire inserting block higher than the bone-sticking surface; constructing a Kirschner wire model according to the osteotomy surface; and constructing a kirschner wire inserting channel on the kirschner wire inserting block according to the kirschner wire model. The invention is convenient to realize the personalized treatment of each patient, improves the precision of the operation, intercepts the obtained metal fence constructed based on the Kirschner wire during the operation of the bone cutting guide plate, reduces the displacement of the guide plate in use, and strengthens the integral rigidity of the Kirschner wire needle insertion block and the bone adhering surface through the connecting column so as to ensure the stable structure and avoid the deformation.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a pelvic bone tumor kirschner wire bone cutting guide plate and a model construction method and a preparation method thereof.
Background
The pelvis bones are irregular bones, and the bony anatomy is more; pelvic bone tumors are classified as type i according to involvement of different pelvic bony structures: ilium; type II: acetabulum; type III: a closed hole area; and IV, type: the sacrum. Refractory pelvic tumors are a good indication for osteotomy guides due to the high degree of individualization of shape and position. The personalized bone cutting guide plate can guide an operating doctor to cut bones in an operation according to a preoperative plan, accurately and quickly cut off tumor entities, and can avoid damaging surrounding normal tissue structures to the maximum extent. The bone cutting guide plate is usually made of resin and limited by manufacturing materials, the bone cutting guide plate is not always of a rigid structure, and the deformation of the guide plate during operation can directly influence the accuracy of operation results. In addition, the placement position planned before the operation often lacks clear and unique bony marks, the instability of the position of the osteotomy guide plate in the operation can cause the direction of the osteotomy position to deviate from the optimal space position in the plan, so that operation errors are caused, and the patient can not obtain the ideal postoperative effect in the plan before the operation.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a pelvic bone tumor kirschner wire bone cutting guide plate and a model construction method and a preparation method thereof.
In one aspect, a construction method of a pelvic bone tumor kirschner wire bone cutting guide plate is provided, and the method comprises the following steps:
reconstructing CT data of a patient to obtain a three-dimensional model of pelvis bones of the patient, and determining a bone cutting surface, wherein the bone cutting surface is positioned on the sacroiliac joint and penetrates through the sacrum along the whole cutting surface close to the sacrum side;
extending along the iliac crest to the posterior superior iliac spine and comprising part of the external iliac surface to construct a bone patch;
constructing at least one Kirschner wire inserting block higher than the bone-sticking surface;
constructing a Kirschner wire model according to the osteotomy surface;
constructing a Kirschner wire inserting channel on the Kirschner wire inserting block according to the Kirschner wire model;
and constructing a connecting column based on the bone-attaching surface and the Kirschner wire needle-inserting block to obtain the Kirschner wire bone-cutting guide plate model for the pelvic bone tumor.
Further, the kirschner wire models are distributed on the osteotomy face at intervals of 2 mm.
Further, the three-dimensional model of bone includes ilium, sacrum, pubis, ischium, and acetabulum.
Furthermore, the connecting column is a cylinder with the radius of 4-5 mm.
Furthermore, the section of the Kirschner wire needle insertion block is in a round-angle rectangular shape, and the whole Kirschner wire needle insertion block is a circular-arc block attached to the sacrum.
Furthermore, the whole length of the Kirschner wire inserting block is 17-20 mm, and the width of the Kirschner wire inserting block is 12-15 mm.
Furthermore, when the Kirschner wire inserting block is constructed, the corners of the Kirschner wire inserting block are chamfered.
In another aspect, a method for preparing a pelvic bone tumor kirschner wire bone cutting guide plate is provided, and the method comprises the following steps: the obtained pelvis bone tumor kirschner wire bone cutting guide plate model is constructed by the pelvis bone tumor kirschner wire bone cutting guide plate model construction method, and the pelvis bone tumor kirschner wire bone cutting guide plate is prepared.
On the other hand, the Kirschner wire bone cutting guide plate for the pelvic bone tumor is prepared by the preparation method of the Kirschner wire bone cutting guide plate for the pelvic bone tumor.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: it is worth mentioning that, in the invention, a three-dimensional model of the pelvis bone of the patient is obtained through CT data reconstruction of the patient, the osteotomy surface is determined, the osteotomy surface and the kirschner wire needle insertion block are constructed, the kirschner wire needle insertion channel is constructed on the kirschner wire needle insertion block, and the connecting column is constructed based on the osteotomy surface and the kirschner wire needle insertion block, so that an operating doctor can conveniently perform osteotomy according to the plan of an operation scheme in the operation, personalized treatment on each patient is realized, tumor entities are accurately and quickly cut off, the damage to the surrounding normal tissue structure can be avoided to the greatest extent, the precision of the operation is improved, the operation time is reduced, a customized prosthesis can be designed according to the section of the osteotomy guide plate, and the recovery of the postoperative patient is facilitated.
In addition, the acquired pelvis bone tumor kirschner wire bone cutting guide plate model is constructed by the pelvis bone tumor kirschner wire bone cutting guide plate model construction method, the prepared pelvis bone tumor kirschner wire bone cutting guide plate is used, a kirschner wire is inserted into a kirschner wire needle inserting channel, the operation is cut based on a metal fence constructed by the kirschner wire, the displacement of the guide plate in use is reduced, and the integral rigidity of the kirschner wire needle inserting block and the bone attaching surface is enhanced by connecting a plurality of connecting columns between the kirschner wire needle inserting block and the bone attaching surface, so that the structure is stable and deformation is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a Kirschner wire bone cutting guide plate for pelvic bone tumor provided by the invention;
FIG. 2 is a schematic structural view of a Kirschner wire bone cutting guide plate for pelvic bone tumor provided by the invention;
FIG. 3 is a schematic view of a bone cutting guide construction provided by the present invention;
FIG. 4 is a schematic view of an acetabular bone-cutting guide constructed according to the present invention;
FIG. 5 is a schematic view of a pubic osteotomy guide construction provided by the present invention;
fig. 6 is a schematic construction diagram of an ischial osteotomy guide provided by the present invention.
Reference numerals: 1-a guide plate body; 2-inserting a kirschner wire into the needle block; 3-pasting bone surface; 4-connecting a column; 5-the Kirschner wire is inserted into the needle channel.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention provides a model construction method of a pelvic bone tumor kirschner wire bone cutting guide plate, which specifically comprises the following steps:
step (1): acquiring CT data of a patient, reconstructing the CT data of the patient through software to obtain a pelvis and skeleton three-dimensional model of the patient, determining a bone cutting surface at a position 10mm outside a bone tumor, wherein the bone cutting surface is positioned on the sacroiliac joint and penetrates through the ilium along the whole cutting surface close to the sacrum side; the method for constructing the three-dimensional model of the pelvic bone is known to those skilled in the art, and for example, the three-dimensional model of the pelvic bone can be constructed by CT and MRI imaging data of a patient using three-dimensional reconstruction software (e.g., medraw Print, mimics).
Step (2): the external surface of the ilium is constructed by extending along the iliac crest to the posterior superior iliac spine and containing part of the external side of the ilium.
And (3): the Kirschner wire needle insertion block is constructed higher than the bone-cutting surface, and is influenced by factors such as muscles around the hip, so that the Kirschner wire needle insertion block needs to be integrally higher than the bone-cutting surface so as to be inserted smoothly. The number of the k-wire insertion blocks is determined according to the number of the positions where the osteotomy is required, and one k-wire insertion block is required if the osteotomy position is one, as shown in fig. 3, and two k-wire insertion blocks are required if the osteotomy position is two, as shown in fig. 4 to 6.
And (4): the method comprises the steps of constructing a kirschner wire model according to an osteotomy face, distributing the kirschner wire model on the osteotomy face at intervals of 2mm, constructing a kirschner wire insertion channel according to the kirschner wire model, wherein the specification of the kirschner wire can be selected according to the specific requirements of a clinician, and the kirschner wire insertion channel is based on the diameter of the kirschner wire for operation of the clinician.
And (5): connecting columns are constructed on the basis of the bone surface and the kirschner wire needle inserting block and are used for enhancing the overall rigidity of the circular arc block and the bone surface to obtain a pelvic bone tumor kirschner wire bone cutting guide plate model, wherein the number of the connecting columns is not specifically limited, but the connecting columns are arranged at the head and the tail, and the connecting columns are uniformly distributed. Due to the influences of the position and the space of the pelvis, particularly, the space of some positions of the pelvis is insufficient, so that a connecting column can be omitted, and a kirschner wire inserting block is required to be directly constructed with the bone-facing surface.
The second aspect of the invention provides a method for preparing a pelvic bone tumor kirschner wire bone cutting guide plate, wherein the method for constructing the pelvic bone tumor kirschner wire bone cutting guide plate model provided by the first aspect of the invention is used for constructing the obtained pelvic bone tumor kirschner wire bone cutting guide plate model, and the method for preparing the pelvic bone tumor kirschner wire bone cutting guide plate specifically comprises the following steps: exporting a pelvic bone tumor kirschner wire bone cutting guide plate model format file, printing the bone cutting guide plate through 3D printing equipment, printing the resin as a printing material, and sterilizing and packaging after printing.
The invention provides a pelvic bone tumor kirschner wire bone cutting guide plate in a third aspect, which can be prepared by the preparation method of the pelvic bone tumor kirschner wire bone cutting guide plate in the second aspect. As shown in fig. 1 to 2, the kirschner wire bone cutting guide plate for pelvic bone tumor comprises: baffle body 1, baffle body 1 includes: the cross section of the Kirschner wire insertion block 2 is in a round-angle rectangular shape, the whole Kirschner wire insertion block is an arc block attached to a sacrum, the whole length of the Kirschner wire insertion block 2 is 17-20 mm, the width of the Kirschner wire insertion block is 12-15 mm, a plurality of Kirschner wire insertion channels 5 are formed in the Kirschner wire insertion block 2, the interval between the Kirschner wire insertion channels 5 is 2mm, and the Kirschner wire insertion channels 5 are used for inserting Kirschner wires to position the pelvis; one side surface of the bone-sticking surface 3 is adapted to a bone surface of a pelvis position to be stuck and is used for positioning the position of the bone cutting guide plate on the pelvis, a plurality of connecting columns 4 are connected between the Kirschner wire needle inserting block 2 and the other side surface of the bone-sticking surface 3, the connecting columns 4 are cylinders with the radius of 4-5 mm, the connecting columns 4 are uniformly distributed on the Kirschner wire needle inserting block 2, and the connecting columns 4 are used for strengthening the overall rigidity of the Kirschner wire needle inserting block 2 and the bone-sticking surface 3.
The invention relates to a method for using a pelvic bone tumor kirschner wire bone cutting guide plate, which comprises the following steps: the doctor exposes the bones at the corresponding positions after stripping the periosteum at the positions corresponding to the pelvis of the patient, the bones are attached to the corresponding pelvic areas by using the corresponding bone-attaching surfaces, the bones are inosculated, the Kirschner wires are inserted into the Kirschner wire channels on the Kirschner wire inserting blocks after the inosculation, and the positions where the corresponding Kirschner wires are inserted into the pelvis, namely the corresponding osteotomy surfaces, namely the boundary positions which the doctor needs to excise in the operation, are found.
It is worth to explain that, in the invention, a patient pelvis bone three-dimensional model is obtained through patient CT data reconstruction, a bone cutting surface is determined, a bone attaching surface and a kirschner wire needle inserting block are constructed, a kirschner wire needle inserting channel is constructed on the kirschner wire needle inserting block, and a connecting column is constructed based on the bone attaching surface and the kirschner wire needle inserting block, so that a surgeon can conveniently cut bones according to the plan of an operation scheme in the operation, the personalized treatment of each patient is realized, tumor entities are accurately and rapidly cut off, the damage to the surrounding normal tissue structure can be avoided to the greatest extent, the operation precision is improved, the operation time is reduced, a customized prosthesis can be designed according to the cross section of a bone cutting guide plate, and the postoperative patient can be conveniently recovered. In addition, the acquired pelvis bone tumor kirschner wire bone cutting guide plate model is constructed by the pelvis bone tumor kirschner wire bone cutting guide plate model construction method, the prepared pelvis bone tumor kirschner wire bone cutting guide plate is used, a kirschner wire is inserted into a kirschner wire needle inserting channel, the operation is cut based on a metal fence constructed by the kirschner wire, the displacement of the guide plate in use is reduced, and the integral rigidity of the kirschner wire needle inserting block and the bone attaching surface is enhanced by connecting a plurality of connecting columns between the kirschner wire needle inserting block and the bone attaching surface, so that the structure is stable and deformation is avoided.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A model construction method of a pelvic bone tumor kirschner wire osteotomy guide plate is characterized by comprising the following steps:
reconstructing CT data of a patient to obtain a pelvis skeleton three-dimensional model of the patient, and determining a bone cutting surface, wherein the bone cutting surface is positioned on the sacroiliac joint and penetrates through the ilium along the whole cutting surface close to the sacrum side;
extending along the iliac crest to the posterior superior iliac spine and constructing a bone-attaching surface containing part of the lateral surface of the ilium;
constructing at least one Kirschner wire inserting block higher than the bone-sticking surface;
constructing a kirschner wire model according to the osteotomy surface;
constructing a Kirschner wire inserting channel on the Kirschner wire inserting block according to the Kirschner wire model;
and constructing a connecting column based on the bone-attaching surface and the Kirschner wire needle-inserting block to obtain the Kirschner wire bone-cutting guide plate model for the pelvic bone tumor.
2. The model construction method of the pelvic bone tumor kirschner wire osteotomy guide plate of claim 1, wherein the kirschner wire model is distributed on the osteotomy face at an interval of 2 mm.
3. The method for constructing the model of the pelvic tumor kirschner wire osteotomy guide plate of claim 1, wherein the three-dimensional model of the bone comprises ilium, sacrum, pubis, ischium, and acetabulum.
4. The model construction method of the pelvic bone tumor kirschner wire bone cutting guide plate as claimed in claim 1, wherein the connecting column is a cylinder with a radius of 4-5 mm.
5. The model construction method of the Kirschner wire osteotomy guide plate for the pelvic tumor according to claim 1, wherein the section of the Kirschner wire insertion block is a rounded rectangular shape, and the whole Kirschner wire insertion block is a rounded block fitting the sacrum.
6. The model construction method of the pelvic bone tumor kirschner wire bone cutting guide plate as claimed in claim 1, wherein the kirschner wire needle insertion block has an overall length of 17-20 mm and a width of 12-15 mm.
7. The model construction method of the pelvic bone tumor kirschner wire bone cutting guide plate as claimed in claim 1, wherein the corners of the kirschner wire needle insertion block are chamfered when the kirschner wire needle insertion block is constructed.
8. A preparation method of a pelvic bone tumor kirschner wire bone cutting guide plate is characterized by comprising the following steps: the pelvic bone tumor kirschner wire bone cutting guide plate model constructed by the pelvic bone tumor kirschner wire bone cutting guide plate model construction method according to any one of claims 1 to 7 is used for preparing the pelvic bone tumor kirschner wire bone cutting guide plate.
9. A pelvic bone tumor kirschner wire bone cutting guide plate, which is prepared by the preparation method of the pelvic bone tumor kirschner wire bone cutting guide plate of claim 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211419600.2A CN115670578A (en) | 2022-11-14 | 2022-11-14 | Pelvis tumor kirschner wire bone cutting guide plate and model building method and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211419600.2A CN115670578A (en) | 2022-11-14 | 2022-11-14 | Pelvis tumor kirschner wire bone cutting guide plate and model building method and preparation method thereof |
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| Publication Number | Publication Date |
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| CN115670578A true CN115670578A (en) | 2023-02-03 |
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|---|---|---|---|
| CN202211419600.2A Pending CN115670578A (en) | 2022-11-14 | 2022-11-14 | Pelvis tumor kirschner wire bone cutting guide plate and model building method and preparation method thereof |
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| CN (1) | CN115670578A (en) |
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- 2022-11-14 CN CN202211419600.2A patent/CN115670578A/en active Pending
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