CN107913100A - A kind of definite method of late-segmental collapse point - Google Patents
A kind of definite method of late-segmental collapse point Download PDFInfo
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- CN107913100A CN107913100A CN201711396734.6A CN201711396734A CN107913100A CN 107913100 A CN107913100 A CN 107913100A CN 201711396734 A CN201711396734 A CN 201711396734A CN 107913100 A CN107913100 A CN 107913100A
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- dimensional reconstruction
- segmental collapse
- collapse point
- femur
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/101—Computer-aided simulation of surgical operations
- A61B2034/105—Modelling of the patient, e.g. for ligaments or bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/107—Visualisation of planned trajectories or target regions
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
CT imagings are carried out the invention discloses a kind of definite method of late-segmental collapse point, including to human body lower limbs, CT images are subjected to three-dimensional reconstruction；Neck of femur after three-dimensional reconstruction, femoral head and greater trochanter are integrally irrigated；The central point for taking bottling body is looked for by 3D modeling software, is late-segmental collapse point.Human body lower limbs are carried out three-dimensional reconstruction by the present invention, neck of femur after three-dimensional reconstruction, femoral head and greater trochanter are integrally irrigated, then bottling body is looked for by Mimics or 3D Slicer and takes solid center, overcome the randomness that traditional joint replacement traditional Chinese medical science is taken root according to the lower limb two dimension X plain films line lower limb line of force of preoperative scanning patient；And neck of femur and femoral head be integrally irrigated rear three-dimensional modeling look for and take central point, accuracy higher.
Description
Technical field
The present invention relates to field of medical technology, and in particular to a kind of definite method of late-segmental collapse point.
Background technology
It is frequently necessary to understand the measure of the geometric parameter such as position, angular deflection in field of medical technology, and passes through
Certain geometric parameter is controlled to study biological characteristics of limbs etc..For example, in total knee replacement（Total Knee
Arthroplasty, TKA）Perform the operation, in bone-culting operation and dislocation of the patella operation, the clinical late result to have obtained, for suitable
Answer the selection of disease, the selection of prosthese, the accurate perception of operation skill and preoperative management all critically important, especially largely
On requirement to operation skill, should the three-dimensional placement of accurate osteotomy, prosthese on three dimensions, realize the postoperative life of knee prosthesis
Material resources replicate again.Document report is in addition to the general complication such as infection, fat embolism, up to 50% early stage overhaul technology
, prosthese improper with line of force pendulum position is improper and joint destabilization is related.Therefore, in order to obtain more preferable Long-term effect, dissection is heavy
It is people's constantly exploration and the final goal pursued to build lower-limbs biology force-line and artificial limb rotation axis.
Conventional total knee replacement operation is carried out in marrow, outside marrow by mechanical guiding device in preoperative X-ray film inspection and art
Positioning osteotomy patient positions anatomic landmark, the lower limb line of force and prosthese rotation axis by naked eyes, feel and experience, then by hand
Line osteotomy, artificial limb is placed and soft tissue balance.This positioning completed based on observation of the naked eyes to limbs and prosthese, have line
Very big subjectivity, directly affects the reliability of the positioning method and the accuracy of operation, even results in the failure of operation.To the greatest extent
Pipe people's constantly improve mechanical navigation system, improves the accuracy of artificial limb implantation, but the limitation of system inherently determines
Its precision being likely to be breached, even the mechanical navigation system that document report is most fine, is used, femur by veteran doctor
10% is also at least to incidence of the line error more than 3 ° with shin bone.And machinery positioning measuring system is with imaginary standardization
Based on the dissection of femur and geometric shape, some case-specifics and may not be applied to.Therefore, traditional surgical approaches is accurate
Degree problem is to perplex the main problem of operative doctor.And the definite key point for being to determine the lower limb line of force of late-segmental collapse point it
One, therefore, the accuracy of knee prosthesis how is improved, accurately establish lower-limbs biology force-line, it is necessary to accurately determine femur
Head central point.
The content of the invention
The shortcomings that it is an object of the invention to overcome the prior art, there is provided a kind of three dimensions late-segmental collapse point determines
Method.
The purpose of the present invention is achieved through the following technical solutions：A kind of definite method of late-segmental collapse point, it includes
Following steps：
S1. CT imagings are carried out to human body lower limbs, CT images is subjected to three-dimensional reconstruction；
S2. the neck of femur after three-dimensional reconstruction, femoral head and greater trochanter are integrally irrigated；
S3. the central point for taking bottling body is looked for by 3D modeling software, is late-segmental collapse point.
Further, the three-dimensional reconstruction is built using Mimics softwares.
Further, the CT images are stored with .dicom forms.
Further, the 3D modeling software is 3D Slicer.
Further, the 3D modeling software is Mimics.
All it is that doctor determines lower limb power according to the line of the lower limb two dimension X plain films of preoperative scanning patient in traditional knee prosthesis
Line, including femoral head centerline are definite, and this method not only brings very big subjectivity random, but also are difficult that completion is accurately fixed
Position.The prior art also has the method for determining late-segmental collapse point in three dimensions, by the three-dimensional mould of bony structure and articular cartilage
Type is imported into Geomgaic is considered as a standard ball by femoral head approximation, and it is a sphere to select partial femoral head point-cloud fitting
The centre of sphere is taken as late-segmental collapse, if be simply stressed shortage to neck of femur to be fitted late-segmental collapse with a ball
Calculate, neck of femur in itself also can bearing stress, so only take the center of femoral head also not high as upper accuracy of the line of force.
The present invention has the following advantages：The present invention's carries out three-dimensional reconstruction by human body lower limbs, to the femur after three-dimensional reconstruction
Neck, femoral head and greater trochanter are integrally irrigated, and then bottling body is looked for by Mimics or 3D Slicer and being taken in solid
The heart, overcome traditional joint replacement traditional Chinese medical science take root according to preoperative scanning patient lower limb two dimension X plain films line the lower limb line of force it is random
Property；And neck of femur and femoral head be integrally irrigated rear three-dimensional modeling look for and take central point, accuracy higher.
Brief description of the drawings
Fig. 1 flow charts of the method for the present invention.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
A kind of definite method of late-segmental collapse point, as shown in Figure 1, it comprises the following steps：
S1. CT imagings are carried out to human body lower limbs, CT images is subjected to three-dimensional reconstruction；
S2. the neck of femur after three-dimensional reconstruction, femoral head and greater trochanter are integrally irrigated；
S3. the central point for taking bottling body is looked for by 3D modeling software, is late-segmental collapse point.
Wherein, the three-dimensional reconstruction is built using Mimics softwares；The CT images are stored with .dicom forms；Institute
It is 3D Slicer or Mimics to state 3D modeling software.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, is all included within the scope of the present invention.
Claims (5)
- A kind of 1. definite method of late-segmental collapse point, it is characterised in that it comprises the following steps：S1. CT imagings are carried out to human body lower limbs, CT images is subjected to three-dimensional reconstruction；S2. the neck of femur after three-dimensional reconstruction, femoral head and greater trochanter are integrally irrigated；S3. the central point for taking bottling body is looked for by 3D modeling software, is late-segmental collapse point.
- 2. a kind of definite method of late-segmental collapse point as claimed in claim 1, it is characterised in that the three-dimensional reconstruction uses Mimics softwares are built.
- A kind of 3. definite method of late-segmental collapse point as claimed in claim 1, it is characterised in that the CT images with .dicom form stores.
- 4. a kind of definite method of late-segmental collapse point as claimed in claim 1, it is characterised in that the 3D modeling software is 3D Slicer。
- 5. a kind of definite method of late-segmental collapse point as claimed in claim 1, it is characterised in that the 3D modeling software is Mimics。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396734.6A CN107913100A (en) | 2017-12-21 | 2017-12-21 | A kind of definite method of late-segmental collapse point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396734.6A CN107913100A (en) | 2017-12-21 | 2017-12-21 | A kind of definite method of late-segmental collapse point |
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| CN107913100A true CN107913100A (en) | 2018-04-17 |
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| CN201711396734.6A Pending CN107913100A (en) | 2017-12-21 | 2017-12-21 | A kind of definite method of late-segmental collapse point |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111671518A (en) * | 2020-04-29 | 2020-09-18 | 北京天智航医疗科技股份有限公司 | Processing and generating method and device for hip joint femoral head spherical center and computer equipment |
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| CN1729483A (en) * | 2002-11-27 | 2006-02-01 | 康复米斯公司 | Patient selectable joint arthroplasty devices and surgical tools facilitating increased accuracy, speed and simplicity in performing total and partial joint arthroplasty |
| JP2010253243A (en) * | 2008-12-04 | 2010-11-11 | Fujifilm Corp | System for measuring joint fissure width, method and program for measuring joint fissure width |
| CN101969869A (en) * | 2007-12-06 | 2011-02-09 | 史密夫和内修有限公司 | Systems and methods for determining the mechanical axis of a femur |
| CN105139442A (en) * | 2015-07-23 | 2015-12-09 | 昆明医科大学第一附属医院 | Method for establishing human knee joint three-dimensional simulation model in combination with CT (Computed Tomography) and MRI (Magnetic Resonance Imaging) |
| CN105361883A (en) * | 2014-08-22 | 2016-03-02 | 方学伟 | Method for determining lower limb biological force line in three-dimensional space for total knee arthroplasty |
| US20160213491A1 (en) * | 2006-02-27 | 2016-07-28 | Biomet Manufacturing, Llc | Patient-specific pre-operative planning |
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2017
- 2017-12-21 CN CN201711396734.6A patent/CN107913100A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1729483A (en) * | 2002-11-27 | 2006-02-01 | 康复米斯公司 | Patient selectable joint arthroplasty devices and surgical tools facilitating increased accuracy, speed and simplicity in performing total and partial joint arthroplasty |
| US20160213491A1 (en) * | 2006-02-27 | 2016-07-28 | Biomet Manufacturing, Llc | Patient-specific pre-operative planning |
| CN101969869A (en) * | 2007-12-06 | 2011-02-09 | 史密夫和内修有限公司 | Systems and methods for determining the mechanical axis of a femur |
| JP2010253243A (en) * | 2008-12-04 | 2010-11-11 | Fujifilm Corp | System for measuring joint fissure width, method and program for measuring joint fissure width |
| CN105361883A (en) * | 2014-08-22 | 2016-03-02 | 方学伟 | Method for determining lower limb biological force line in three-dimensional space for total knee arthroplasty |
| CN105139442A (en) * | 2015-07-23 | 2015-12-09 | 昆明医科大学第一附属医院 | Method for establishing human knee joint three-dimensional simulation model in combination with CT (Computed Tomography) and MRI (Magnetic Resonance Imaging) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111671518A (en) * | 2020-04-29 | 2020-09-18 | 北京天智航医疗科技股份有限公司 | Processing and generating method and device for hip joint femoral head spherical center and computer equipment |
| CN111671518B (en) * | 2020-04-29 | 2021-04-16 | 北京天智航医疗科技股份有限公司 | Processing and generating method and device for hip joint femoral head spherical center and computer equipment |
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