CN211985628U - Reverse pedicle screw internal fixation system based on lumbar minimally invasive oblique lateral approach - Google Patents
Reverse pedicle screw internal fixation system based on lumbar minimally invasive oblique lateral approach Download PDFInfo
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- CN211985628U CN211985628U CN202020228192.2U CN202020228192U CN211985628U CN 211985628 U CN211985628 U CN 211985628U CN 202020228192 U CN202020228192 U CN 202020228192U CN 211985628 U CN211985628 U CN 211985628U
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Abstract
The utility model provides a reverse vertebral pedicle screw internal fixation system based on lumbar minimally invasive oblique lateral approach, which comprises a locking steel plate and a vertebral pedicle screw, wherein the locking steel plate is arranged between the right front side and the right lateral side of a vertebral body; a first reverse pedicle screw enters a screw from a position 1/4 below the front edge of an X-ray sheet at the side position of an upper vertebral body, and a positive X-ray sheet shows that a screw entering point is on the central vertical line of the pedicle of vertebral arch at the same side, obliquely strikes into the upper vertebral body and penetrates out of the pedicle of vertebral arch at the opposite side; the second reverse pedicle screw is arranged on the second reverse pedicle screw hole, the second reverse pedicle screw enters the screw from 1/4 of the front edge of the X-ray sheet at the side position of the lower vertebral body, the positive X-ray sheet displays that the screw entering point is on the central vertical line of the pedicle of the vertebral arch at the same side, the second reverse pedicle screw is obliquely driven into the lower vertebral body and penetrates out of the pedicle of the vertebral arch at the opposite side. The side approach fixing system solves the defects that the stability of the side approach fixing system is poor, the fusion rate is low, the operation curative effect is influenced, the body position needs to be changed, secondary disinfection and anesthesia are performed, and the operation time is prolonged to perform posterior pedicle screw internal fixation.
Description
Technical Field
The utility model relates to an orthopedics medical instrument field, concretely relates to based on oblique outside approach reverse pedicle of vertebral arch screw internal fixation system of lumbar vertebrae wicresoft.
Background
The lumbar side approach minimally invasive surgery is more and more common, but the doubt and the difficult problem of whether the additional internal fixation is firm exist generally, particularly for senile osteoporosis patients, the stability of lumbar vertebrae is difficult to maintain by a lateral nail plate system or a common nail rod system, the fusion rate is influenced, the curative effect of the surgery is influenced, and a posterior pedicle screw system is often required to be added. However, the lateral approach operation body position is a lateral decubitus position, and the pedicle screw internal fixation usually needs a prone position, so that the body position is required to be changed in the operation, the two times of disinfection are required, the anesthesia and the operation time are delayed, and the operation is extremely inconvenient. Therefore, there is a need to develop a reliable and stable internal fixation system for lateral approach, which can achieve the stability effect of the internal fixation system for posterior pedicle screws.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a based on oblique outside approach reverse pedicle of vertebral arch screw internal fixation system of lumbar vertebrae wicresoft, it is low to have solved the poor stability that is used for side approach centrum nail board fixing system among the prior art, has fused the rate, influences operation curative effect scheduling problem to and need change the position, secondary disinfection and anesthesia, extension operation time carries out the drawback of back way pedicle of vertebral arch screw internal fixation.
The technical scheme of the utility model is realized like this:
the reverse vertebral pedicle screw internal fixation system based on the lumbar minimally invasive oblique lateral approach comprises a locking steel plate and a vertebral pedicle screw,
the locking steel plate is arranged between the right front part and the right side part of the vertebral body, in particular to the locking steel plate is arranged at the position of a right X-ray film which displays the inner edge of the vertebral pedicle at the same side of the vertebral body and the position of 1/2 of the front part of the vertebral body of the side X-ray film; the locking steel plate is in an arc-shaped bent shape and is provided with a profiling surface anatomically attached to an arc-shaped surface at the intersection of the right front side and the right lateral side of the vertebral body;
the locking steel plate is provided with two reverse pedicle screw holes, namely a first reverse pedicle screw hole and a second reverse pedicle screw hole, which are respectively used for installing reverse pedicle screws; the first reverse pedicle screw hole is positioned 1/4 below the front edge of the X-piece at the lateral position of the superior vertebral body, and the positive X-piece is positioned on the central vertical line of the pedicle of vertebral arch at the same side; the second reverse pedicle screw hole is positioned on the front edge of the X-ray at the lower vertebral body side position by 1/4, and the first reverse pedicle screw hole are longitudinally distributed on the locking steel plate and keep in a straight line distribution;
the first reverse pedicle screw is installed on the first reverse pedicle screw hole, the first reverse pedicle screw enters from 1/4 position below the front edge of the X-ray sheet at the side of the upper vertebral body, the positive X-ray sheet displays a screw entering point on the central vertical line of the pedicle at the same side, and the screw entering point is obliquely driven into the upper vertebral body and penetrates out of the pedicle opposite to the upper vertebral body at the screw entering point; the second reverse pedicle screw is arranged on the second reverse pedicle screw hole, the second reverse pedicle screw enters the screw from 1/4 of the front edge of the X-ray sheet at the side position of the lower vertebral body, the positive X-ray sheet shows that the screw entering point is on the central vertical line of the pedicle of the vertebral arch at the same side, the second reverse pedicle screw is obliquely driven into the lower vertebral body and penetrates out of the pedicle of the vertebral arch at the opposite side of the lower vertebral body with the screw entering point.
Based on the lumbar vertebra minimally invasive oblique lateral approach reverse pedicle screw internal fixation system, the locking steel plate is further provided with two vertebral body screw holes which are named as a first vertebral body screw hole and a second vertebral body screw hole respectively and are used for installing vertebral body screws respectively.
According to the lumbar vertebra minimally invasive oblique lateral approach based reverse pedicle screw internal fixation system, the first vertebral body screw hole is positioned below the front side of the superior vertebral body, and the first vertebral body screw hole and the first reverse pedicle screw hole are transversely distributed on the locking steel plate and keep linear distribution;
the second vertebral body nail holes are positioned above the right side of the lower vertebral body, the second vertebral body nail holes and the second reverse pedicle screw holes are transversely distributed and linearly distributed on the locking steel plate, and the second vertebral body nail holes and the first vertebral body nail holes are longitudinally distributed on the locking steel plate and linearly distributed.
According to the lumbar vertebra minimally invasive oblique lateral approach based reverse pedicle screw internal fixation system, the first vertebral body screw hole is used for installing a first vertebral body screw, namely the first vertebral body screw is fed from the lower part of the front side of the upper vertebral body, vertically driven into the upper vertebral body and penetrates out from the other side of the upper vertebral body;
the second vertebral body nail hole is used for installing a second vertebral body nail, namely the second vertebral body nail enters the nail from the upper part of the front side of the lower vertebral body, is vertically driven into the lower vertebral body and penetrates out from the other side of the lower vertebral body.
The locking steel plate is replaced by a nail rod based on the lumbar minimally invasive oblique lateral approach reverse pedicle screw internal fixation system.
The utility model discloses following beneficial effect has:
the utility model relates to a based on oblique outside approach reverse pedicle of vertebral arch screw internal fixation system of lumbar vertebrae wicresoft is a single approach, single position can provide firm stable internal fixation system, reaches or reaches back way pedicle of vertebral arch screw internal fixation system's stability basically, improves the lumbar vertebrae internal fixation's the rate of fusion, reduces the internal fixation failure rate.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of the reverse pedicle screw internal fixation system based on the lumbar minimally invasive oblique lateral approach of the present invention;
fig. 2 is a front view of the utility model discloses based on the oblique outside approach reverse pedicle of vertebral arch screw internal fixation system practical application example of lumbar vertebrae wicresoft.
FIG. 3 shows that the utility model discloses a look sideways at based on oblique outside approach reverse pedicle of vertebral arch screw internal fixation system practical application example of lumbar vertebrae wicresoft
The attached drawings are as follows: 1-locking steel plate, 2.1-first reverse pedicle screw, 2.2-second reverse pedicle screw, 3.1-first vertebral body nail, 3.2-second vertebral body nail, 4.1-superior vertebral body and 4.2-inferior vertebral body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The existing lateral nail plate system or common nail rod system usually fixes the nail plate system or the nail rod system from the lateral direction of the vertebral body, and the nail feeding point of the system enters from the right side of the vertebral body, is driven into the vertebral body and passes out from the left side of the vertebral body; or enter the vertebral body from the left side of the vertebral body, enter the vertebral body and penetrate out from the right side of the vertebral body. This type of fixation often presents a question and difficulty as to whether the additional internal fixation is secure, especially for elderly osteoporotic patients, where it is often difficult to maintain lumbar stability, affect fusion rates, and affect surgical efficacy with lateral nail plate systems or common nail and rod systems. Therefore, additional posterior pedicle screw fixation systems are often required, i.e., a screw is advanced from the pedicle and driven into the vertebral body in a diagonal direction of advancement. However, the lateral approach operation body position is a lateral decubitus position, and the posterior pedicle screw internal fixing system usually needs a prone position, so that the body position is required to be changed in the operation, the operation time is delayed by two times of disinfection, and the operation is extremely inconvenient.
Therefore, the inventor develops a reverse pedicle screw internal fixation system based on lumbar minimally invasive oblique lateral approach, which comprises a locking steel plate 1, a reverse pedicle screw and a vertebral body nail as shown in fig. 1. As shown in fig. 2 and 3, the locking steel plate 1 is installed between the right front and the right lateral of the vertebral body, specifically: the locking steel plate 1 is arranged at the position of the positive X-ray film which displays the inner edge of the vertebral pedicle at the same side of the vertebral body and the position of 1/2 of the front of the vertebral body of the lateral X-ray film; the locking steel plate 1 is arranged at the position, so that the implantation of the reverse pedicle screws and the implantation of the vertebral body nails are both convenient to consider, as shown in fig. 2-3, if the locking steel plate 1 is close to 1/2 of the rear part of the vertebral body at the side position, the implantation of the reverse pedicle screws cannot be realized, and if the locking steel plate 1 exceeds the inner edge of the pedicle at the same side of the positive X-piece and even exceeds the central line of the front edge of the vertebral body, too many abdominal cavity organs and blood vessel tissues need to be exposed, and related operation complications are increased. The locking steel plate 1 is arc-shaped and bent and is provided with a profiling surface which is anatomically attached to an arc surface at the intersection of the right front side and the right lateral side of the vertebral body.
The locking steel plate 1 is provided with two reverse pedicle screw holes for installing reverse pedicle screws, which are named as a first reverse pedicle screw hole and a second reverse pedicle screw hole respectively; the first reverse pedicle screw hole is positioned 1/4 of the lower part of the front edge of the X-ray sheet at the 4.1 lateral position of the superior vertebral body, and the positive X-ray sheet is positioned on the central vertical line of the pedicle of vertebral arch at the same side, so that the segment artery of the vertebral body is prevented from being exposed; the second reverse pedicle screw hole is positioned at 1/4 of the front edge of the X-ray sheet at the 4.2 side position of the lower vertebral body, and the second reverse pedicle screw hole and the first reverse pedicle screw hole are longitudinally distributed on the locking steel plate 1 and keep straight line distribution;
the first reverse pedicle screw 2.1 and the second reverse pedicle screw 2.2 can both adopt the existing screw plate screw system, and are named as reverse pedicle screws due to the difference between the existing pedicle screw feeding points and the existing pedicle screw feeding directions. The first reverse pedicle screw 2.1 is arranged on the first reverse pedicle screw hole, namely the first reverse pedicle screw enters a screw from a position 1/4 below the front edge of an X-ray sheet at the 4.1 side position of an upper vertebral body, a positive X-ray sheet shows that a screw entering point is on the central vertical line of the pedicle of the vertebral arch at the same side, the screw entering point is obliquely driven into the upper vertebral body 4.1 and penetrates out of the pedicle of the vertebral arch at the opposite side of the upper vertebral body 4.1 at the screw entering point; the second reverse pedicle screw 2.2 is arranged on the second reverse pedicle screw hole, namely the second reverse pedicle screw 2.2 is fed in from 1/4 of the front edge of the X-ray sheet at the side position of the lower vertebral body 4.2, the positive X-ray sheet shows that a screw feeding point is on the central vertical line of the pedicle of vertebral arch at the same side, and the screw feeding point is obliquely driven into the lower vertebral body 4.2 and penetrates out of the pedicle of vertebral arch at the opposite side of the lower vertebral body 4.2 with the screw feeding point.
The locking steel plate 1 is also provided with two vertebral body nail holes for installing vertebral body nails, which are named as a first vertebral body nail hole and a second vertebral body nail hole respectively; the first vertebral body nail hole is positioned below the right side of the superior vertebral body 4.1, and the first vertebral body nail hole and the first reverse pedicle screw hole are transversely distributed on the locking steel plate 1 and keep in a straight line distribution; the second vertebral body nail holes are positioned above the right side of the lower vertebral body 4.2, the second vertebral body nail holes and the second reverse pedicle screw holes are transversely distributed on the locking steel plate 1 and keep linearly distributed, and the second vertebral body nail holes and the first vertebral body nail holes are longitudinally distributed on the locking steel plate 1 and keep linearly distributed.
The first vertebral body nail 3.1 is arranged on the first vertebral body nail hole, namely the first vertebral body nail 3.1 is vertically driven into the superior vertebral body 4.1 from the lower part of the right side of the superior vertebral body 4.1 and penetrates out from the other side of the superior vertebral body 4.1. The second vertebral body nail 3.2 is arranged on the second vertebral body nail hole, namely the second vertebral body nail 3.2 is fed from the upper part of the right side of the lower vertebral body 4.2, vertically driven into the lower vertebral body 4.2 and penetrates out from the other side of the lower vertebral body 4.2. According to the bone condition of a patient, a vertebral body nail hole is not designed on the locking steel plate 1, namely, a vertebral body nail is not arranged in the internal fixing system, and the locking steel plate 1 can be replaced by a nail rod structure.
This based on locking steel sheet 1 among oblique outside approach reverse pedicle of vertebral arch screw internal fixation system of lumbar vertebrae wicresoft, reverse pedicle of vertebral arch screw and centrum nail arrange through above-mentioned structure setting and position, can be through single side approach, single position, it is poor to have solved the poor stability that is used for side approach centrum nail board system among the prior art, the fusion rate is low, influence operation curative effect scheduling problem to and need change the position, secondary disinfection and anesthesia, extension operation time carries out the drawback of way of escape pedicle of vertebral arch screw internal fixation. Meanwhile, the stability of the posterior pedicle screw internal fixing system is also achieved.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second", "element i", "element ii" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features indicated. Thus, features defined as "first", "second", "element i", "element ii" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The reverse vertebral pedicle screw internal fixation system based on the lumbar minimally invasive oblique lateral approach comprises a locking steel plate and a vertebral pedicle screw, and is characterized in that,
the locking steel plate is arranged between the right front part and the right side part of the vertebral body, in particular to the locking steel plate is arranged at the position of a right X-ray film which displays the inner edge of the vertebral pedicle at the same side of the vertebral body and the position of 1/2 of the front part of the vertebral body of the side X-ray film; the locking steel plate is in an arc-shaped bent shape and is provided with a profiling surface anatomically attached to an arc-shaped surface at the intersection of the right front side and the right lateral side of the vertebral body;
the locking steel plate is provided with two reverse pedicle screw holes, namely a first reverse pedicle screw hole and a second reverse pedicle screw hole, which are respectively used for installing reverse pedicle screws; the first reverse pedicle screw hole is positioned 1/4 below the front edge of the X-piece at the lateral position of the superior vertebral body, and the positive X-piece is positioned on the central vertical line of the pedicle of vertebral arch at the same side; the second reverse pedicle screw hole is positioned on the front edge of the X-ray at the lower vertebral body side position by 1/4, and the first reverse pedicle screw hole are longitudinally distributed on the locking steel plate and keep in a straight line distribution;
the first reverse pedicle screw is installed on the first reverse pedicle screw hole, the first reverse pedicle screw enters from 1/4 position below the front edge of the X-ray sheet at the side of the upper vertebral body, the positive X-ray sheet displays a screw entering point on the central vertical line of the pedicle at the same side, and the screw entering point is obliquely driven into the upper vertebral body and penetrates out of the pedicle opposite to the upper vertebral body at the screw entering point; the second reverse pedicle screw is arranged on the second reverse pedicle screw hole, the second reverse pedicle screw enters the screw from 1/4 of the front edge of the X-ray sheet at the side position of the lower vertebral body, the positive X-ray sheet shows that the screw entering point is on the central vertical line of the pedicle of the vertebral arch at the same side, the second reverse pedicle screw is obliquely driven into the lower vertebral body and penetrates out of the pedicle of the vertebral arch opposite to the lower vertebral body at the screw entering point.
2. The lumbar spine-based minimally invasive oblique lateral approach retrograde pedicle screw internal fixation system according to claim 1, wherein the locking steel plate is further provided with two vertebral body screw holes, which are respectively named as a first vertebral body screw hole and a second vertebral body screw hole, for installing vertebral body screws.
3. The lumbar spine-based minimally invasive oblique lateral approach retrograde pedicle screw internal fixation system according to claim 2, wherein the first vertebral body screw hole is located under the right side of the superior vertebral body, and the first vertebral body screw hole and the first retrograde pedicle screw hole are arranged in a transverse direction and keep a straight line on the locking steel plate;
the second vertebral body nail holes are positioned above the right side of the lower vertebral body, the second vertebral body nail holes and the second reverse pedicle screw holes are transversely distributed and linearly distributed on the locking steel plate, and the second vertebral body nail holes and the first vertebral body nail holes are longitudinally distributed on the locking steel plate and linearly distributed.
4. The lumbar spine minimally invasive oblique lateral approach based retrograde pedicle screw internal fixation system according to claim 3, wherein the first vertebral body nail hole is used for installing a first vertebral body nail, namely the first vertebral body nail enters from the lower part of the right side of the superior vertebral body, is vertically driven into the superior vertebral body and penetrates out from the other side of the superior vertebral body;
the second vertebral body nail hole is used for installing a second vertebral body nail, namely the second vertebral body nail enters the nail from the upper part of the front side of the lower vertebral body, is vertically driven into the lower vertebral body and penetrates out from the other side of the lower vertebral body.
5. The lumbar spine-based minimally invasive oblique lateral approach retrograde pedicle screw internal fixation system of claim 1, wherein the locking steel plate is replaced with a screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020228192.2U CN211985628U (en) | 2020-02-28 | 2020-02-28 | Reverse pedicle screw internal fixation system based on lumbar minimally invasive oblique lateral approach |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020228192.2U CN211985628U (en) | 2020-02-28 | 2020-02-28 | Reverse pedicle screw internal fixation system based on lumbar minimally invasive oblique lateral approach |
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| CN211985628U true CN211985628U (en) | 2020-11-24 |
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| CN202020228192.2U Active CN211985628U (en) | 2020-02-28 | 2020-02-28 | Reverse pedicle screw internal fixation system based on lumbar minimally invasive oblique lateral approach |
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