CN111616725A - Size matching method of hip joint prosthesis - Google Patents
Size matching method of hip joint prosthesis Download PDFInfo
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- CN111616725A CN111616725A CN202010399261.0A CN202010399261A CN111616725A CN 111616725 A CN111616725 A CN 111616725A CN 202010399261 A CN202010399261 A CN 202010399261A CN 111616725 A CN111616725 A CN 111616725A
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- 210000004394 hip joint Anatomy 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 21
- 210000001624 hip Anatomy 0.000 claims description 15
- 210000000689 upper leg Anatomy 0.000 claims description 8
- 238000012545 processing Methods 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011540 hip replacement Methods 0.000 abstract 1
- 210000000588 acetabulum Anatomy 0.000 description 18
- 239000008188 pellet Substances 0.000 description 4
- 210000001694 thigh bone Anatomy 0.000 description 3
- 210000004197 pelvis Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003692 ilium Anatomy 0.000 description 1
- 210000000528 lesser trochanter Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools for implanting artificial joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/505—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
- A61B6/5217—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data extracting a diagnostic or physiological parameter from medical diagnostic data
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools for implanting artificial joints
- A61F2/4601—Special tools for implanting artificial joints for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4607—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of hip femoral endoprostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools for implanting artificial joints
- A61F2/4657—Measuring instruments used for implanting artificial joints
- A61F2002/4658—Measuring instruments used for implanting artificial joints for measuring dimensions, e.g. length
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Dentistry (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a size matching method of a hip joint prosthesis, which belongs to the technical field of medical instruments and comprises the steps of collecting hip joint images of a patient, collecting hip joint template data, matching the hip joint of the patient with a hip joint prosthesis template by using image processing software, and screening out the most appropriate hip joint prosthesis template; measuring the size of the selected most appropriate hip joint prosthesis template by using a scale so as to obtain the size of the most appropriate hip joint prosthesis; the beneficial effects are that: the size matching method of the hip joint prosthesis provided by the invention screens out the size of the hip joint prosthesis with the most appropriate size by processing the hip joint template in image processing software; for the preoperative planning of hip replacements.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a size matching method of a hip joint prosthesis.
Background
Before the hip joint replacement operation is carried out on a patient, the size and the position of the hip joint prosthesis need to be estimated, and the established hip joint prosthesis is implanted into the patient to complete the operation. There are many types of hip prostheses, some of which may be known only by the surgeon, and the choice of the type of prosthesis in clinical use is largely influenced by the clinical experience of the surgeon, and in preoperative planning, the prosthesis size is estimated mainly by measurements made on the prosthesis template provided by the manufacturer, and prostheses manufactured in this way often suffer from poor postoperative efficacy due to improper prosthesis size selection. According to the prior art, although the type and the model of the prosthesis can be matched by combining a factory-specific transparent paper template with an X-ray film, the X-ray films of various hospitals are inconsistent in amplification ratio and are compared by visual observation, so that a larger error is often caused; in addition, the method cannot calculate more accurate size data of the prosthesis, and is difficult to judge the model and the size of the prosthesis which are best adapted more accurately; this is a problem that is currently urgently to be solved.
Disclosure of Invention
The invention aims to provide a size matching method of a hip joint prosthesis, which aims to solve the problem that accurate size data cannot be calculated for a prosthesis template in the matching process of matching the hip joint prosthesis so as to match the prosthesis more accurately.
In order to solve the technical problems, the technical scheme of the invention is as follows: a size matching method of a hip joint prosthesis comprises the steps of collecting hip joint images of a patient; collecting hip joint template data; the hip template is matched to the hip image using image processing software to arrive at the appropriate size of the hip prosthesis.
As a preferred embodiment of the present invention, the acquiring the hip image of the patient includes acquiring X-ray images of the anterior-posterior pelvic position, the right side hip joint position, and the right side femoral bone position of the patient using X-rays.
As a preferred aspect of the present invention, the acquiring hip joint template data includes importing a hip joint template database of a manufacturer into the image processing software.
As a preferred scheme of the invention, a size template is introduced into the image processing software, and the size template is measured by using a scale tool to obtain a scale; and amplifying the template library scale in equal proportion to obtain the specific sizes of the acetabulum and femoral prosthesis templates.
As a preferred scheme of the present invention, an iliac seat line, an acetabular superior border line, and a pelvic tear line are drawn in image processing software, a plurality of acetabular prosthesis templates are selected from hip joint template data, each acetabular prosthesis template is provided with a first comparison point, a second comparison point, and a third comparison point, which are at the same position, each acetabular prosthesis template is moved to the hip joint image and rotated, so that the first comparison point, the second comparison point, and the third comparison point are close to the iliac seat line, the acetabular superior border line, and the pelvic tear line, the image processing software automatically calculates the distance between each comparison point and the corresponding straight line, and when the three distance differences are less than 1mm, the acetabular prosthesis template is determined to be a qualified template.
As a preferred scheme of the present invention, a femoral prosthesis template of a corresponding manufacturer is selected from the hip joint template data, a plurality of femoral prosthesis templates are sequentially moved to the femur of the hip joint image from the small size to the large size, the center line of the femoral prosthesis template is ensured to coincide with the center line of the femur, the femoral prosthesis template is moved up and down, the outer side of the femoral prosthesis template is attached to the inner side wall of the isthmus of the proximal medullary cavity of the femur, and when the femoral prosthesis template is completely attached, the femoral prosthesis template is determined to be the target model template.
The beneficial effect of adopting above-mentioned technical scheme is: the size matching method of the hip joint prosthesis provided by the invention comprises the steps of calculating the actual size of hip iconography by using a scale tool in image processing software, calibrating an artificial joint template on the basis of the actual size, placing the hip joint template in corresponding relative ratio points through the software, processing the corresponding relative ratio points, and screening out a template with a shape which is relatively close to that of the hip joint prosthesis; thereby obtaining the model and the size of the hip joint prosthesis more accurately.
Drawings
Fig. 1 is a block diagram of a procedure for a size matching method of a hip prosthesis according to the invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment provides a size matching method of a hip joint prosthesis, which comprises the steps of acquiring hip joint images of a patient, specifically, acquiring images of the front and back position of a pelvis, the positive side position of the hip joint and the positive side position of a femur of the patient by using X-rays, and storing a picture of a hip joint X-ray film taken by the patient into a computer. Collecting hip joint template data; specifically, a hip joint template picture of a manufacturer is imported into a computer, and then a hip joint template database of the manufacturer is imported into image processing software. As is known, a hip joint comprises an acetabulum and a femur, so the hip joint template picture comprises two types, the first type being an acetabulum template and the second type being a femoral prosthesis template.
The image processing software preferably uses Photoshop, a dimension template is led into the Photoshop, and the dimension template is measured by using a scale tool to obtain a scale; in particular, this is the case: the size template selects a pellet, the pellet is introduced into a Photoshop, and the diameter of the pellet is measured using a ruler tool, if 10mm, since the actual size of the pellet is known, if 50mm, the scale is 1: 5. And measuring the acetabular prosthesis template, namely the acetabular template, by using a scale tool, and converting by using a scale to obtain the specific size of the acetabular prosthesis template.
Introducing a size template into Photoshop, and measuring the size template by using a scale tool to obtain a scale; and measuring the femoral prosthesis template, namely the femoral prosthesis template by using a scale tool, and converting by using a scale to obtain the specific size of the femoral prosthesis template.
When the hip joint prosthesis is matched, the size of the acetabulum and the size of the femur need to be determined at the same time, and after the two sizes are determined, the two parts of prosthesis are spliced to form the complete hip joint. Image processing is carried out on the hip joint prosthesis template by using image processing software, the acetabulum template and the femoral prosthesis template are respectively compared on a hip joint X-ray film from a small size to a large size in sequence, and qualified hip joint prosthesis templates are screened out; and finally, measuring the size of the qualified hip joint prosthesis template to obtain the size of the hip joint prosthesis.
For convenience of operation, the image processing software is preferably Photoshop, and after the picture of the hip joint X-ray film is imported into Photoshop, firstly, drawing an ilium sitting line, an acetabulum upper margin line and a pelvis tear drop line on a hip joint X-ray picture of Photoshop, selecting an acetabulum prosthesis template, namely an acetabulum template from hip joint template data, setting a first comparison point, a second comparison point and a third comparison point on an acetabulum template, sequentially moving a plurality of acetabulum templates in a database to the acetabulum of an X-ray picture of the hip joint respectively to enable the center of the acetabulum on the picture to coincide with the center of the acetabulum template, then rotating the acetabulum template to enable the first comparison point, the second comparison point and the third comparison point to simultaneously approach to an iliac sitting line, an acetabular superior border line and a pelvic tear drop line as much as possible, Photoshop automatically calculating the distance between each comparison point and a corresponding straight line, and judging the acetabulum template to be a qualified template when the three distance differences are less than 1 mm.
And after the acetabulum template is screened, screening the femoral prosthesis template. The method comprises the specific operation steps of selecting a plurality of femoral prosthesis templates from a hip joint template database, moving the femoral prosthesis templates, namely the femoral prosthesis templates to the thighbone position of a hip joint X-ray image, enabling the midline of the femoral prosthesis templates to coincide with the midline of a proximal medullary cavity of the thighbone, enabling the outer side of the femoral prosthesis templates to be attached to the inner side wall of the medullary cavity of the thighbone, judging the femoral prosthesis templates to be qualified templates when the femoral prosthesis templates are completely attached and the distance between the femoral head rotation center of a target femoral prosthesis template and the rotation center of an acetabulum template is less than 1mm, and recording and marking the model of the templates.
After the acetabulum template and the femoral prosthesis template are determined through the steps, the distance length from the lesser trochanter to the target osteotomy line is recorded so as to prompt the preoperative osteotomy reserved distance.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (7)
1. A size matching method of a hip joint prosthesis is characterized in that,
comprises collecting hip joint image of patient;
collecting hip joint template data;
the hip template is matched to the hip image using image processing software to arrive at the appropriate size of the hip prosthesis.
2. The method of claim 1, wherein the acquiring the hip image of the patient comprises acquiring an image of the anterior-posterior pelvic position, the anterior-lateral hip joint position, and the anterior-lateral femoral hip joint position of the patient using X-rays.
3. The method of claim 1, wherein the acquiring hip template data comprises importing a manufacturer's hip template database into the image processing software.
4. The method for matching the size of a hip joint prosthesis according to claim 3, wherein the image processing software is Photoshop, a size template is introduced into Photoshop, and the size template is measured by using a scale tool to obtain a scale; and measuring the acetabular prosthesis template by using a scale tool, and converting by using a scale to obtain the specific size of the acetabular prosthesis template.
5. The method of matching the size of a hip joint prosthesis according to claim 4, wherein a size template is introduced into the Photoshop, and the size template is measured using a scale tool to obtain a scale; and measuring the femoral prosthesis template by using a scale tool, and converting by using a scale to obtain the specific size of the femoral prosthesis template.
6. The method of claim 5, wherein an iliac sitting line, an acetabular superior border and a pelvic tear drop line are drawn in the Photoshop, a plurality of acetabular prosthetic templates are selected from the hip template data, each acetabular prosthetic template is provided with a first comparison point, a second comparison point and a third comparison point which are the same in position, each acetabular prosthetic template is moved to the hip image and rotated to be close to the iliac sitting line, the acetabular superior border and the pelvic tear drop line, Photoshop automatically calculates the distance between each comparison point and the corresponding straight line, and when the difference between the three distances is less than 1mm, the acetabular prosthetic template is determined to be a qualified template.
7. The method of claim 5, wherein a plurality of femoral prosthesis templates are selected from the hip joint templates, the plurality of femoral prosthesis templates are moved to the femur of the hip joint image in turn, the midline of the femoral prosthesis template is aligned with the midline of the femur, the femoral prosthesis template is moved up and down, the outer side of the femoral prosthesis template is attached to the inner side wall of the femoral medullary canal, and when the femoral prosthesis template is completely attached, the femoral prosthesis template is determined to be a qualified template.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399261.0A CN111616725A (en) | 2020-05-12 | 2020-05-12 | Size matching method of hip joint prosthesis |
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|---|---|---|---|
| CN202010399261.0A CN111616725A (en) | 2020-05-12 | 2020-05-12 | Size matching method of hip joint prosthesis |
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| CN111616725A true CN111616725A (en) | 2020-09-04 |
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| CN202010399261.0A Pending CN111616725A (en) | 2020-05-12 | 2020-05-12 | Size matching method of hip joint prosthesis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118615072A (en) * | 2024-05-31 | 2024-09-10 | 北京力达康科技有限公司 | Matching acetabular reconstruction prosthesis system based on model fusion and its application method |
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| US20040117028A1 (en) * | 2001-03-13 | 2004-06-17 | Iversen Bjorn Franc | Method and device for providing information after insertion of a prosthesis in a hip-joint |
| WO2005051241A1 (en) * | 2003-11-28 | 2005-06-09 | Sectra Pronosco A/S | Pre-operative planning of implantations |
| US20100086181A1 (en) * | 2008-10-08 | 2010-04-08 | James Andrew Zug | Method and system for surgical modeling |
| CN105769393A (en) * | 2016-04-08 | 2016-07-20 | 罗佳 | Method and system for hip joint prosthesis matching |
| CN110432919A (en) * | 2019-09-06 | 2019-11-12 | 中国人民解放军东部战区总医院 | A kind of C arm X-ray film ray machine real time imagery control methods based on 3D model |
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2020
- 2020-05-12 CN CN202010399261.0A patent/CN111616725A/en active Pending
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| US20040117028A1 (en) * | 2001-03-13 | 2004-06-17 | Iversen Bjorn Franc | Method and device for providing information after insertion of a prosthesis in a hip-joint |
| WO2005051241A1 (en) * | 2003-11-28 | 2005-06-09 | Sectra Pronosco A/S | Pre-operative planning of implantations |
| US20100086181A1 (en) * | 2008-10-08 | 2010-04-08 | James Andrew Zug | Method and system for surgical modeling |
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| CN110432919A (en) * | 2019-09-06 | 2019-11-12 | 中国人民解放军东部战区总医院 | A kind of C arm X-ray film ray machine real time imagery control methods based on 3D model |
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| CN118615072A (en) * | 2024-05-31 | 2024-09-10 | 北京力达康科技有限公司 | Matching acetabular reconstruction prosthesis system based on model fusion and its application method |
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