CN201888839U - Fibula shaping board for mandible reconstruction - Google Patents
Fibula shaping board for mandible reconstruction Download PDFInfo
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- CN201888839U CN201888839U CN2010205995244U CN201020599524U CN201888839U CN 201888839 U CN201888839 U CN 201888839U CN 2010205995244 U CN2010205995244 U CN 2010205995244U CN 201020599524 U CN201020599524 U CN 201020599524U CN 201888839 U CN201888839 U CN 201888839U
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- osteotomy
- fibula
- mandibular bone
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Abstract
The utility model discloses a fibula shaping board for mandible reconstruction, including an arch form groove and the adjusting screws; the adjusting screw passes through the front side face of the arch form groove; a holding groove is disposed on the adjusting screw at one end passing through the front side face of the arch form groove; the arch form groove is provided with three osteotomy grooves which are arranged as follows according to sizes and positions: genial angle osteotomy groove in the middle with an osteotomy angle of the genial angle of 55-65 degrees; mandible angle osteotomy grooves on two ends with an osteotomy angle of the mandible angle of 35-45 degrees; and the distance between the front side face and the back side face is 2.5cm-3.5cm. An internal universal rule of the mandible of the normal adult is found according to morphological analysis so as to determine the shaping parameter of the mandible horizontal part; and accordingly, a universal fibula shaping board is designed and produced, thereby realizing the fast four-section-type shaping of fibula transplantation for reconstruction of the mandible horizontal part.
Description
Technical field
This utility model relates to the mandibular bone that uses in the oral and maxillofacial surgery reconstruction surgical operation and rebuilds the moulding plate of fibula.
Background technology
Vascularization fibula tissue flap just progressively becomes main force's flap that mandibular bone is rebuild, and to transplanting the accurately moulding of fibula, all is the thorny task that the reconstruction surgeon faces all the time.The moulding of tradition bone graft carries out with clinician's experience is free-hand with reference to preformed mandibular bone reconstruction plate or according to imaging data before mandibular bone excision specimen, the art, and be therefore moulding often not accurate enough and need repeatedly that mill changes adjustment.In recent years along with the development of Computer Aided Surgery technology, use business-like surgery planning software (Surgicase etc.) and can realize individuation surgical simulation and the customization of bone graft cutting board etc., the accuracy and the effect of operation have greatly been improved, but cost of manufacture costliness and key technology are monopolized by offshore company, are difficult for promoting.
Mandibular bone is an irregular shape of a hoof tubulose diaphysis, is divided into two parts of vertical component effect and horizontal part.Horizontal part is made up of body and chin portion, studies show that the similar parabolic structure of its trim line, is that mandibular bone is rebuild the moulding difficult point place of bone graft.Usually moulding " syllogic ", " four-part form ", " five-part form " method arranged to what the mandibular bone horizontal segment was rebuild bone graft, main reference frame is the preformed template of specimens from pri or mandibular bone, following reconstruction of jaw plate etc., obviously the multiple more form of building mandibular bone of segmentation is more near original shape, but increased the risk that operation easier and bone graft section are lost vascularization.Big, the poor stability of the clinical randomness of therefore traditional moulding method operation, and have big gap between bone graft section and reconstruction plate usually, unfavorable fixing.Use the moulding template of bone graft of business-like Computer Aided Surgery software (Surgicase) production customization individuation in recent years and appear in the newspapers, but its fabrication cycle is long, costs an arm and a leg, correlation technique is monopolized by offshore company especially, is difficult for promoting.
The utility model content
The purpose of this utility model is to provide a kind of universal mandibular bone of the moulding parameter designing according to mandibular bone to rebuild the moulding plate of fibula.
For realizing above purpose, this utility model discloses following technical scheme: a kind of mandibular bone is rebuild the moulding plate of fibula, comprise arcuate slots and set screw, described arcuate slots comprises leading flank, bottom surface and trailing flank, described set screw is passed the arcuate slots leading flank, and bracket is set at the end that described set screw is passed the arcuate slots leading flank, described arcuate slots is provided with three osteotomy grooves, described osteotomy groove is by the straight-line groove that is arranged on the bottom surface and be arranged on leading flank and the osteotomy angle of trailing flank is formed, described osteotomy angle is a v shape groove, the osteotomy angle of described leading flank and trailing flank size is identical and be connected with described straight-line groove, described three osteotomy grooves size and position are by following arrangement, the centre is a chin angle osteotomy groove, osteotomy angle, chin angle size is 55 degree-65 degree, two ends are lower jaw member angle osteotomy groove, and osteotomy angle, lower jaw member angle size is 35 degree-45 degree, and the distance between described leading flank and trailing flank is 2.5 centimetres-3.5 centimetres.
As a preferred embodiment, osteotomy angle, described chin angle is 60 degree, and osteotomy angle, described lower jaw member angle is 40 degree.
As a preferred embodiment, the distance between described leading flank and trailing flank is 3.0 centimetres.
As a preferred embodiment, described bracket is the U type, as another preferred embodiment, at the U type bracket place of dehiscing the standing shape sawtooth is set.
As a preferred embodiment, described arcuate slots trailing flank one side in groove is provided with the resistance groove.
As another preferred embodiment, described arcuate slots trailing flank is provided with visual window; Described arcuate slots bottom surface is provided with visual window.
As another preferred embodiment, described set screw is four.
Theoretical basis of the present utility model:
One, mandibular bone is made of vertical component effect and horizontal part, and the mandibular bone horizontal part is made up of lower jaw body and chin portion, and the similar parabolic structure of research its trim line of report is that mandibular bone is rebuild the moulding difficult point of bone graft.Clinical practice finds that the mandibular bone horizontal part almost presents linear structure after mental foramen (Men), and the lower jaw chin portion curvature between mental foramen is bigger, and with pogonion (Pg) for, therefore mental foramen point and pogonion become the profile flex point of mandibular bone horizontal part, can further the mandibular bone horizontal part be reduced to four symmetric linear structure: Go-Mem, Men-Pg, Pg-Men ', Men '-Go ', this also is the moulding basis of mandibular bone horizontal part " four-part form ".The significant difference of discovering different sexes mandibular bone form mainly is the length (p＜0.05) of its structure, but not the curvature of structure (p〉0.05).
Two, the standard deviation and the coefficient of variation are the common counters that statistics reflects individual dispersion degree, and the coefficient of variation is mainly used in the comparison between the measurement unit data with different.Research is found the three-dimensional measurement of 55 routine normal adult mandibular bone, although the sex difference of mandibular bone linear variable is remarkable, but the average of different sexes lower jaw chin long (Men-Pg) and standard deviation all are minimum, and the long individual variation of lower jaw chin has been described, and other linear variables are least obvious relatively.And in the analysis of the angle variables (body angle, chin angle) of mandibular bone, find its coefficient of variation generally less than linear variable, this angle variables individual variation that mandibular bone equally also has been described is little, sees Table 1,2.Therefore established the moulding parameter of mandibular bone: lower jaw member angle, chin angle, lower jaw chin are long.
Table 1: the definition and the expression of the outer deformation quantity (linearity/angle) of mandibular bone
| The outer deformation quantity of mandibular bone | Definition |
| The condyle spacing (Co-Co ') | The distance of the prominent point of both sides condyle line, the width between the expression condyle is prominent |
| Angular separation (Go-Go ') | The distance of both sides gonion line, the width of expression mandibular bone |
| The chin spacing (Men-Men ') | The distance of both sides mental foramen point line, the width of expression mandibular bone chin portion |
| Ramus of mandible long (Co-Go) | The distance of the prominent point of one side condyle and gonion line is the left-right symmetric variable |
| Lower jaw member long (Go-Men) | The distance of one side gonion and mental foramen point line is the left-right symmetric variable |
| Lower jaw chin long (Men-Pg) | The distance of 1 side mental foramen point and pogonion line is the left-right symmetric variable |
| Angle of mandible (∠ Co-Go-Men) | The angle that forms between one side condyle prominent point, gonion and mental foramen point is the left-right symmetric variable |
| Lower jaw member angle (∠ Go-Men-Pg) | One side gonion, mental foramen point and can before the angle that forms between point, be the left-right symmetric variable |
| Chin angle (∠ Men-Pg-Men ') | The angle that forms between 1 side mental foramen point, pogonion and offside mental foramen point, the opening width of expression chin portion |
Table 2: the measured value and the sex difference of the outer deformation quantity (linearity/angle) of mandibular bone
| Outer deformation quantity | Male (n=26) | Women (n=29) | Total coefficient of variation (CV) | The P value |
| Co-Co’ | 127.938±6.102 | 123.603±4.270 | 4.150 | 0.0033 |
| Go-Go’ | 104.203±5.289 | 99.348±4.795 | 4.953 | 0.0008 |
| Men-Men’ | 55.807±4.117 | 53.471±2.378 | 6.073 | 0.0118 |
| Co-Go | 56.131±4.336 | 51.363±4.156 | 7.911 | 0.0001 |
| Go-Men | 60.565±4.190 | 58.246±3.618 | 6.570 | 0.0024 |
| Men-Pg | 32.659±2.592 | 31.453±1.782 | 6.877 | 0.0050 |
| ∠Co-Go-Men | 117.522±5.590 | 118.972±4.993 | 4.467 | 0.1536 |
| ∠ Go-Men-Pg | 140.003±3.491 | 140.957±3.498 | 2.487 | 0.1556 |
| ∠Men-Pg-Men’ | 117.522±3.960 | 116.543±3.601 | 3.226 | 0.3413 |
Three, according to the mandibular bone moulding parameter of having determined: lower jaw member angle (35 degree-45 degree, preferred 40 degree), chin angle (55 degree-65 degree, preferred 60 spend) and the moulding plate of lower jaw chin long (2.5 centimetres-3.5 centimetres, preferred 3.0 centimetres) design production mandibular bone reconstruction transplanting fibula.Therefore on the moulding plate arcuate slots of fibula, design three osteotomy grooves that two kinds of angles are arranged, the corresponding lower jaw member of difference angle, chin angle and offside lower jaw member angle, the osteotomy groove center is that the distance between arcuate slots leading flank and trailing flank is long for the lower jaw chin at interval.It is moulding that the moulding plate of fibula can disposablely be finished " four-part form " of bone graft.
Advantage of the present utility model is: at traditional fibula moulding random big, operational stability is poor, bone graft section and reconstruction plate are not often fitted shortcoming, according to three-dimensional measurement research to normal Adult Mandibular bone form, the sex difference of discovery mandibular bone horizontal part flexibility is remarkable and individual variation is little, and therefore the moulding plate of universal mandibular bone reconstruction fibula is produced in design.The moulding operation that the mandibular bone horizontal part is rebuild bone graft is the committed step and the difficult point place of reconstruction of bone of mandible, and the fibula tissue flap is rebuild a line main force flap of generally acknowledging because its unique anatomical structure is present mandibular bone, therefore the design and development of the moulding plate of fibula has greatly solved the present situation of fibula mandible reconstruction " moulding difficulty, moulding slow ", improved the accuracy and the efficient of operation, helped further applying.
Description of drawings
Fig. 1 is an axonometric chart of the present utility model.
Fig. 2 is a front view of the present utility model.
Fig. 3 is a rearview of the present utility model.
Fig. 4 is a vertical view of the present utility model.
Fig. 5 is a upward view of the present utility model.
Fig. 6 is a right view of the present utility model.
Label is as follows shown in the figure: 1---leading flank; 2---trailing flank; 3---set screw; 4---bracket; 5---the resistance groove; 6---osteotomy angle, lower jaw member angle; 7---osteotomy angle, chin angle; 8---visual window; 9---visual window; 10---straight-line groove; 11---the bottom surface.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is elaborated, the effect of embodiment only is to explain and non-limiting this utility model.
Embodiment 1
As Fig. 1, shown in Figure 4, mandibular bone is rebuild the moulding plate of fibula, material is a medical titanium alloy, comprise arcuate slots and set screw 3, described arcuate slots is in order to hold fibula, comprise leading flank 1, bottom surface 11 and trailing flank 2, described set screw 3 is passed arcuate slots leading flank 1, and bracket 4 is set at the end that described set screw 3 is passed arcuate slots leading flank 1, described arcuate slots is provided with three osteotomy grooves, in order to guide the osteotomy direction of reciprocal bone saw sheet, as Fig. 2, Fig. 3, shown in Figure 5, described osteotomy groove is made up of the osteotomy angle of the straight-line groove 10 that is arranged on bottom surface 11 and osteotomy angle that is arranged on leading flank 1 and trailing flank 2, described osteotomy angle is a v shape groove, the osteotomy angle of described leading flank 1 and the osteotomy angle of trailing flank 2 size is identical and be connected with described straight-line groove 10, described three osteotomy grooves size and position are by following arrangement, the centre is a chin angle osteotomy groove, osteotomy angle, chin angle 7 sizes are 55 degree-65 degree, two ends are lower jaw member angle osteotomy groove, osteotomy angle, lower jaw member angle 6 sizes are 35 degree-45 degree, and the distance between described leading flank and trailing flank is 2.5 centimetres-3.5 centimetres.
Osteotomy angle, described chin angle 7 is preferably 60 degree; Osteotomy angle, described lower jaw member angle 6 is preferably 40 degree; Distance between described leading flank and trailing flank is preferably 3.0 centimetres.
Described bracket 4 is the U type, dehisces to locate to be provided with standing shape sawtooth (diagram is not drawn) at U type bracket, and as shown in Figure 6, described arcuate slots trailing flank 2 simultaneously is provided with zigzag resistance groove 5 in groove, move in order to prevent the bone graft section.
As Fig. 1, shown in Figure 3, described arcuate slots trailing flank 2 is provided with circular hole visual window 8; As Fig. 1, Fig. 4 and shown in Figure 5, described arcuate slots bottom surface 11 is provided with strip visual window 9.
The number of described set screw 3 is four.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a mandibular bone is rebuild the moulding plate of fibula, comprise arcuate slots and set screw, described arcuate slots comprises leading flank, bottom surface and trailing flank, it is characterized in that, described set screw is passed the arcuate slots leading flank, and bracket is set at the end that described set screw is passed the arcuate slots leading flank, described arcuate slots is provided with three osteotomy grooves, described osteotomy groove is by the straight-line groove that is arranged on the bottom surface and be arranged on leading flank and the osteotomy angle of trailing flank is formed, described osteotomy angle is a v shape groove, the osteotomy angle of described leading flank and trailing flank size is identical and be connected with described straight-line groove, described three osteotomy grooves size and position are by following arrangement, the centre is a chin angle osteotomy groove, osteotomy angle, chin angle size is 55 degree-65 degree, two ends are lower jaw member angle osteotomy groove, and osteotomy angle, lower jaw member angle size is 35 degree-45 degree, and the distance between described leading flank and trailing flank is 2.5 centimetres-3.5 centimetres.
2. a kind of mandibular bone according to claim 1 is rebuild the moulding plate of fibula, it is characterized in that, osteotomy angle, described chin angle is 60 degree, and osteotomy angle, described lower jaw member angle is 40 degree.
3. a kind of mandibular bone according to claim 1 is rebuild the moulding plate of fibula, it is characterized in that the distance between described leading flank and trailing flank is 3.0 centimetres.
4. a kind of mandibular bone according to claim 1 is rebuild the moulding plate of fibula, it is characterized in that described bracket is the U type.
5. a kind of mandibular bone according to claim 4 is rebuild the moulding plate of fibula, it is characterized in that, the described U type bracket place of dehiscing is provided with the standing shape sawtooth.
6. a kind of mandibular bone according to claim 1 is rebuild the moulding plate of fibula, it is characterized in that, described arcuate slots trailing flank one side in groove is provided with the resistance groove.
7. a kind of mandibular bone according to claim 1 is rebuild the moulding plate of fibula, it is characterized in that described arcuate slots trailing flank is provided with visual window.
8. a kind of mandibular bone according to claim 1 is rebuild the moulding plate of fibula, it is characterized in that described arcuate slots bottom surface is provided with visual window.
9. a kind of mandibular bone according to claim 1 is rebuild the moulding plate of fibula, it is characterized in that described set screw is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205995244U CN201888839U (en) | 2010-11-10 | 2010-11-10 | Fibula shaping board for mandible reconstruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205995244U CN201888839U (en) | 2010-11-10 | 2010-11-10 | Fibula shaping board for mandible reconstruction |
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| Publication Number | Publication Date |
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| CN201888839U true CN201888839U (en) | 2011-07-06 |
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| CN2010205995244U Expired - Lifetime CN201888839U (en) | 2010-11-10 | 2010-11-10 | Fibula shaping board for mandible reconstruction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102462530A (en) * | 2010-11-10 | 2012-05-23 | 上海交通大学医学院附属第九人民医院 | Fibula shaping board for use in mandibular reconstruction |
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2010
- 2010-11-10 CN CN2010205995244U patent/CN201888839U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102462530A (en) * | 2010-11-10 | 2012-05-23 | 上海交通大学医学院附属第九人民医院 | Fibula shaping board for use in mandibular reconstruction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110706 Effective date of abandoning: 20130717 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110706 Effective date of abandoning: 20130717 |
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| RGAV | Abandon patent right to avoid regrant |