CN102151141A - Method for measuring femoral head-neck spatial angles - Google Patents
Method for measuring femoral head-neck spatial angles Download PDFInfo
- Publication number
- CN102151141A CN102151141A CN 201110078782 CN201110078782A CN102151141A CN 102151141 A CN102151141 A CN 102151141A CN 201110078782 CN201110078782 CN 201110078782 CN 201110078782 A CN201110078782 A CN 201110078782A CN 102151141 A CN102151141 A CN 102151141A
- Authority
- CN
- China
- Prior art keywords
- neck
- femur
- angle
- head
- femur head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention relates to a measuring method for CT (Computed Tomography) scanning and postprocessing and aims to provide a three-dimensional method for measuring femoral head-neck spatial angles. The method comprises the following steps: enabling a measured person to lie on the back on an examination bed, and enabling the middle sagittal line of the human body to coincide with the middle line of the examination bed; carrying out continuous data acquisition on the human body by adopting multilayer spiral CT scanning to obtain a thin-layer sequence, wherein the scanning range is from the upper edge of acetabulum to the lesser trochanter of femur; reconstructing a hip joint three-dimensional image based on the thin-layer sequence by using a three-dimensional postprocessing program, and removing unrelated structures such as the acetabulum and the like to obtain a femur three-dimensional image; and measuring the femoral head-neck extraversion angle, postversion angle and subversion angle. The technical scheme of the invention has the characteristic that the surface anatomical structure of the three-dimensionally restructured femur is displayed clearly, the position can be easily regulated, and the femoral head-neck spatial angles can be precisely measured.
Description
Technical field
The present invention relates to the measuring method of CT scan and post processing, the method that is to use three-dimensional post processing image that the space angle of femur head and neck is measured specifically.
Background technology
The femoral head fracture of cervical vertebra is resetted in the measurement of femur head and neck space angle and artificial hip joint manufacturing installation etc. has directive function, and very important clinical meaning is arranged.
The measurement of human femur under loading space angle is now mainly thrown according to measurement method (hereinafter to be referred as " naked bone method ") by CT method and naked bone, typical C T method be with specimen lie against scanning bed on, respectively femur head and neck and condyle of femur level are carried out two-dimensional scan perpendicular to the femur major axis.Typical naked bone method is femur specimen is placed on the horizontal plane, and two condyle trailing edges and greater trochanter trailing edge contact described horizontal plane, and camera places and the femoral shaft equal height, axial projection, and greater trochanter trailing edge contact point is positioned in the middle of the two condyle trailing edge contact points during imaging.Then to adopt image measure.Concrete image measuring method then comprises the measurement of neck of femur back rake angle etc., and Murphy method (angle between femur head and neck axle and condyle of femur axis) and Hernandez method (angle between neck of femur transverse section axis and condyle of femur axis) etc. are arranged.
There is following shortcoming in such scheme to the measuring method of the space angle of femur: it all is to measure on two dimensional image, be difficult to the various space angles of femur are measured intuitively, and the last image that generates also is a two dimensional image, can't observe the various space angle states of femur intuitively.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of measuring method of three-dimensional femur head and neck space angle is provided, the spatiality of femur head and neck in the skeleton is measured accurately.
Purpose of the present invention can reach by following steps:
(1) the skeleton specimen that will comprise femur places on the scan table, and is parallel with the examinating couch median line with human body center sagittal line;
(2) CT scan: use the multi-layer helical CT scan, human body is carried out the continuous data collection obtain the thin layer sequence, comprise the acetabular bone upper limb on the sweep limits, comprise lesser trochanter of femur down;
(3) three-dimensional reconstruction: use three-dimensional post processor that described thin layer sequence is rebuild the hip joint 3-D view, remove irrelevant structures such as acetabular bone, obtain the 3-D view of femoral head and neck position;
(4) the femur 3-D view to being obtained, carry out the measurement of femur head and neck camber angle, back rake angle and angle of declination: described femur 3-D view is made as normotopia, determine femur head and neck axis, the angle of described femur head and neck axis and health center sagittal line is the camber angle of femur head and neck, and described femur head and neck axis and the transversal angle of body levels are the angle of declination of femur head and neck; The femur 3-D view is made as the side position, adjusting the three-dimensional observation angle overlaps the both sides femur substantially, determine femur head and neck axis, the angle that described femur head and neck axis and health hit exactly crown line is the back rake angle of femur head and neck, and described femoral head topic axis and the transversal angle of body levels are the angle of declination of femur head and neck; The femur 3-D view is made as axle position, determines femur head and neck axis, the angle that described femur head and neck axis and health hit exactly crown line is the back rake angle of femur head and neck.
In such scheme, in described femur normotopia, side position and axle position view, only need to select normotopia plus side position or normotopia to add the axle position, just can accurately measure the three dimensions angle of femur head and neck.
The characteristics of technique scheme are: the femoral surface anatomical structure of three-dimensional reconstruction shows clear, and can rotate and adjust the position, can know the space angle that shows femur, a kind of new measuring method is provided, measurement to data is convenient, be convenient to the data of a large amount of skeletons are gathered quickly and easily, measured data can make full use of in the middle of the fields such as artificial limb is moulding.
Further: in described step (4), the center of circle of femoral head match circle and the line of neck of femur minor axis mid point are femur head and neck axis, and described neck of femur minor axis is the line at narrow place of neck of femur.。This is for measuring femur head and neck axis metering system more accurately.
Further: in described step (4), the line of the minor axis mid point of femoral head camber line mid point and neck of femur is femur head and neck axis, and described neck of femur minor axis is the neck of femur line at narrow place, and it is the more simple and reliable measuring method of femur head and neck axis.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is a normotopia sketch map of measuring femur head and neck camber angle and angle of declination in the embodiment of the invention;
Fig. 2 is an axle position sketch map of measuring femoral head retrocollis angle in the embodiment of the invention;
Fig. 3 is a side position sketch map of measuring femoral head retrocollis angle and angle of declination in the embodiment of the invention.
The specific embodiment
Known structure and method are no longer set forth at this in this programme.Carry out according to following steps:
(1) complete skeleton specimen is placed on the scan table with normality, parallel with human body center sagittal line with the examinating couch median line.
(2) CT scan: use the multi-layer helical CT scan, human body is carried out the continuous data collection obtain the thin layer sequence, sweep parameter is 120KV and 150MAS, 1 millimeter of bed thickness, 0.6 millimeter at interval, on the sweep limits to the acetabular bone upper limb, down to lesser trochanter of femur.
(3) three-dimensional reconstruction: use three-dimensional post processor that described thin layer sequence is rebuild the hip joint 3-D view, remove irrelevant structures such as acetabular bone, obtain the femur 3-D view.
(4) the femur 3-D view that is obtained carries out following measurement: the femur 3-D view that is obtained carries out camber angle, the measurement of back rake angle and angle of declination: described femur 3-D view is made as normotopia, the match femoral head is made circle 11, make the line segment 12 overlap with the neck of femur minor axis then, connect the center of circle of circle 11 and the mid point of line segment 12 and make straight line 13, gained straight line 13 is femur head and neck axis, record the angle 14 of described femur head and neck axis and health center sagittal line 4, angle 14 is the camber angle of femur head and neck, and described femur head and neck axis and the transversal angle of body levels are the angle of declination of femur head and neck; Then the femur 3-D view is made as the axle position, adjusting the three-dimensional observation angle makes the both sides femur be in same level height, the match femoral head is made circle 21, the line segment 22 that work overlaps with the neck of femur minor axis, connect the center of circle of circle 21 and the mid point of line segment 22 and promptly get femur head and neck axis 23, the angle 24 that femur head and neck axis 23 and health hit exactly crown line 5 is the back rake angle of femur head and neck; The femur 3-D view is made as the side position, the match femoral head is made circle 31, the line segment 32 that work overlaps with the neck of femur minor axis, connect the center of circle of circle 31 and the mid point of line segment 32 and promptly get femur head and neck axis 33, the angle that femur head and neck axis 33 and health hit exactly crown line 5 is the back rake angle 34 of femur head and neck, and described femur head and neck axis and the transversal angle of body levels are the angle of declination of femur head and neck.
Above-described only is preferred implementation of the present invention; should be understood that; for a person skilled in the art; under the premise of not departing from the present invention; can also make some distortion and improvement; as change definite mode of femur head and neck axis: the line by femoral head camber line mid point and the minor axis mid point of neck of femur determines that these also should be considered as protection scope of the present invention, and these can not influence effect of the invention process and practical applicability.
Claims (3)
1. the measuring method of femur head and neck space angle, its step comprises:
(1) the skeleton specimen that will comprise femur places on the scan table, and is parallel with the examinating couch median line with human body center sagittal line;
(2) CT scan: use the multi-layer helical CT scan, human body is carried out the continuous data collection obtain the thin layer sequence, comprise the acetabular bone upper limb on the sweep limits, comprise lesser trochanter of femur down;
(3) three-dimensional reconstruction: use three-dimensional post processor that described thin layer sequence is rebuild the hip joint 3-D view, remove irrelevant structures such as acetabular bone, obtain the 3-D view of femoral head and neck position;
(4) the femur 3-D view to being obtained, carry out the measurement of femur head and neck camber angle, back rake angle and angle of declination: described femur 3-D view is made as normotopia, determine femur head and neck axis, the angle of described femur head and neck axis and health center sagittal line is the camber angle of femur head and neck, and described femur head and neck axis and the transversal angle of body levels are the angle of declination of femur head and neck;
The femur 3-D view is made as the side position, adjusting the three-dimensional observation angle overlaps the both sides femur substantially, determine femur head and neck axis, the angle that described femur head and neck axis and health hit exactly crown line is the back rake angle of femur head and neck, and described femur head and neck axis and the transversal angle of body levels are the angle of declination of femur head and neck;
The femur 3-D view is made as axle position, determines femur head and neck axis, the angle that described femur head and neck axis and health hit exactly crown line is the back rake angle of femur head and neck.
2. the measuring method of femur head and neck space angle according to claim 1 is characterized in that: in the described step (4), the center of circle of femoral head match circle and the line of neck of femur minor axis mid point are femur head and neck axis.
3. the measuring method of femur head and neck space angle according to claim 1 is characterized in that: in the described step (4), the line of the minor axis mid point of femoral head camber line mid point and neck of femur is femur head and neck axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078782 CN102151141A (en) | 2011-03-29 | 2011-03-29 | Method for measuring femoral head-neck spatial angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078782 CN102151141A (en) | 2011-03-29 | 2011-03-29 | Method for measuring femoral head-neck spatial angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102151141A true CN102151141A (en) | 2011-08-17 |
Family
ID=44433044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110078782 Pending CN102151141A (en) | 2011-03-29 | 2011-03-29 | Method for measuring femoral head-neck spatial angles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102151141A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2547782C2 (en) * | 2013-05-21 | 2015-04-10 | Государственное бюджетное образовательное учреждение высшего профессионального образования "Курский государственный медицинский университет" Министерства здравоохранения Российской Федерации | Method of determining true angle of horizontal inclination in hip joints by data of magnetic-resonance examination or computed tomography |
| CN107913101A (en) * | 2017-12-21 | 2018-04-17 | 成都真实维度科技有限公司 | Based on virtual image and the fracture of neck of femur surgical planning method and system for combining tantalum nail |
| CN107967932A (en) * | 2017-12-21 | 2018-04-27 | 成都真实维度科技有限公司 | Fracture of neck of femur closed reduction evaluation method and system based on three-dimensional C-arm machine |
| CN108143488A (en) * | 2017-12-21 | 2018-06-12 | 成都真实维度科技有限公司 | Operation plan design method and system based on patients with fracture of neck true model |
| CN108158651A (en) * | 2017-12-21 | 2018-06-15 | 成都真实维度科技有限公司 | Operating equipment, consumptive material type selecting and routing resource in Virtual Space |
| CN108158653A (en) * | 2017-12-21 | 2018-06-15 | 成都真实维度科技有限公司 | The method and system developed using virtual image to fracture of neck of femur lesion various dimensions |
| CN108542408A (en) * | 2018-01-26 | 2018-09-18 | 潍坊学院 | A kind of 3 D stereo femoral head dimension measuring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303248A (en) * | 1998-04-01 | 2001-07-11 | 医学机器人技术斯德哥尔摩公司 | Method and arrangement for determining where to position fixation means |
| US20080021567A1 (en) * | 2006-07-18 | 2008-01-24 | Zimmer Technology, Inc. | Modular orthopaedic component case |
| CN201127645Y (en) * | 2007-12-28 | 2008-10-08 | 兖矿集团有限公司 | Tridimensional directional sight for femoral head neck |
-
2011
- 2011-03-29 CN CN 201110078782 patent/CN102151141A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303248A (en) * | 1998-04-01 | 2001-07-11 | 医学机器人技术斯德哥尔摩公司 | Method and arrangement for determining where to position fixation means |
| US20080021567A1 (en) * | 2006-07-18 | 2008-01-24 | Zimmer Technology, Inc. | Modular orthopaedic component case |
| CN201127645Y (en) * | 2007-12-28 | 2008-10-08 | 兖矿集团有限公司 | Tridimensional directional sight for femoral head neck |
Non-Patent Citations (1)
| Title |
|---|
| 《Med Bio Eng Comput》 20061231 Yeon Soo Lee,etc "3D femoral neck anteversion measurements based on the posterior femoral plane in ORTHODOC system" 第895-906页 1-3 第44卷, * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2547782C2 (en) * | 2013-05-21 | 2015-04-10 | Государственное бюджетное образовательное учреждение высшего профессионального образования "Курский государственный медицинский университет" Министерства здравоохранения Российской Федерации | Method of determining true angle of horizontal inclination in hip joints by data of magnetic-resonance examination or computed tomography |
| CN107913101A (en) * | 2017-12-21 | 2018-04-17 | 成都真实维度科技有限公司 | Based on virtual image and the fracture of neck of femur surgical planning method and system for combining tantalum nail |
| CN107967932A (en) * | 2017-12-21 | 2018-04-27 | 成都真实维度科技有限公司 | Fracture of neck of femur closed reduction evaluation method and system based on three-dimensional C-arm machine |
| CN108143488A (en) * | 2017-12-21 | 2018-06-12 | 成都真实维度科技有限公司 | Operation plan design method and system based on patients with fracture of neck true model |
| CN108158651A (en) * | 2017-12-21 | 2018-06-15 | 成都真实维度科技有限公司 | Operating equipment, consumptive material type selecting and routing resource in Virtual Space |
| CN108158653A (en) * | 2017-12-21 | 2018-06-15 | 成都真实维度科技有限公司 | The method and system developed using virtual image to fracture of neck of femur lesion various dimensions |
| CN108158653B (en) * | 2017-12-21 | 2019-11-05 | 成都真实维度科技有限公司 | The method and system developed using virtual image to fracture of neck of femur lesion various dimensions |
| CN108143488B (en) * | 2017-12-21 | 2019-12-10 | 成都真实维度科技有限公司 | Operation scheme design method and system based on femoral neck fracture patient real model |
| CN108158651B (en) * | 2017-12-21 | 2020-01-07 | 成都真实维度科技有限公司 | Surgical equipment, consumable type selection method and path selection method in virtual space |
| CN107913101B (en) * | 2017-12-21 | 2020-01-24 | 成都真实维度科技有限公司 | Femoral neck fracture operation planning method and system based on virtual imaging and combined tantalum nail |
| CN107967932B (en) * | 2017-12-21 | 2021-07-20 | 成都真实维度科技有限公司 | Femoral neck fracture closed reduction evaluation method and system based on three-dimensional C-shaped arm machine |
| CN108542408A (en) * | 2018-01-26 | 2018-09-18 | 潍坊学院 | A kind of 3 D stereo femoral head dimension measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102151141A (en) | Method for measuring femoral head-neck spatial angles | |
| US9387083B2 (en) | Acquiring and utilizing kinematic information for patient-adapted implants, tools and surgical procedures | |
| KR101160696B1 (en) | Method and apparatus for metal artifact reduction in 3d x-ray image reconstruction using artifact spatial information | |
| Taddei et al. | Subject-specific finite element models of long bones: an in vitro evaluation of the overall accuracy | |
| Lalone et al. | Accuracy assessment of 3D bone reconstructions using CT: an intro comparison | |
| CN105832415B (en) | Navigation device of rotation and preparation method thereof and application method are precisely gone for femur | |
| CN107016666B (en) | Image post-processing method for pelvis CT three-dimensional reconstruction based on coordinate system | |
| CN105361883A (en) | Method for determining lower limb biological force line in three-dimensional space for total knee arthroplasty | |
| CN106780715B (en) | Method for establishing pelvis CT three-dimensional coordinate system | |
| Rooppakhun et al. | Craniometric study of Thai skull based on three-dimensional computed tomography (CT) data | |
| WO2013112452A1 (en) | Automatic implant detection from image artifacts | |
| Michaud et al. | Determining in vivo sternoclavicular, acromioclavicular and glenohumeral joint centre locations from skin markers, CT-scans and intracortical pins: A comparison study | |
| Sharma et al. | Radiological method for measuring patellofemoral tracking and tibiofemoral kinematics before and after total knee replacement | |
| CN113069134A (en) | Three-dimensional measurement method for morphological parameters in femoral bone marrow cavity based on CT three-dimensional reconstruction image | |
| CN103156631A (en) | Artificial hip joint detecting system and method based on digital X-ray imaging | |
| KR101179081B1 (en) | Apparatus for designing custom-made prosthesis based on bone density measurement | |
| Havey et al. | Three-dimensional computed tomography-based specimen-specific kinematic model for ex vivo assessment of lumbar neuroforaminal space | |
| CN107714078B (en) | Method and system for positioning three-dimensional positions of plants in bones and joints by using structural features | |
| Humbert et al. | 3D Evaluation of the acetabular coverage assessed by biplanar X-rays or single anteroposterior X-ray compared with CT-scan | |
| CN100500099C (en) | Method for multi-layer spiral CT three-dimensional rebuilding for measuring humeral head eccentricity | |
| CN107478666A (en) | Nondestructive testing method for internal defects of porous material | |
| Lalone et al. | Accuracy assessment of an imaging technique to examine ulnohumeral joint congruency during elbow flexion | |
| CN100427038C (en) | Method for measuring turning angle of humerus by using multiple line of CT three-D remodelling | |
| TWI693922B (en) | Preparation method of bone defect bone guide device | |
| RU2578858C1 (en) | Method for evaluating position of shoulder joint/endoprosthesis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110817 |