CN115778537A - Spinal balance assessment system and method for spinal deformity correction surgery - Google Patents
Spinal balance assessment system and method for spinal deformity correction surgery Download PDFInfo
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- CN115778537A CN115778537A CN202211136654.8A CN202211136654A CN115778537A CN 115778537 A CN115778537 A CN 115778537A CN 202211136654 A CN202211136654 A CN 202211136654A CN 115778537 A CN115778537 A CN 115778537A
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Abstract
The invention discloses a spinal balance evaluation system and method for spinal deformity correction surgery, and relates to a medical instrument used in the surgery. The spine balance assessment device and the spine balance assessment method can assess the spine balance condition in real time in an operation to help an operator to accurately and accurately shape. The spine balance evaluation system for the spine deformity correction operation comprises a preoperative planning system, a spine positioning device and a target tracking system, wherein the preoperative planning system comprises CT equipment and imaging software; the spine positioning device comprises a plurality of groups of positioning parts with imaging marks; the target tracking system is used to capture a position signal of a spinal positioning device. The spinal balance evaluation system for the spinal deformity correction operation can enable an operator to obtain the balance condition of the spine in the current state in the operation, simplify the operation condition, improve the success rate of the operation and improve the situation of poor spinal balance recovery after the spinal deformity correction operation.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a spinal balance assessment system and method for a spinal deformity correction operation.
Background
The main evaluation index for the operation treatment of the spinal deformity is the condition of spinal balance after operation, such as balance of coronal plane and sagittal plane. Preoperative imaging data is available to help determine the surgical plan to achieve good post-operative spinal balance. However, in the operation process, due to the aseptic requirement of the operation, the rest parts except the operation area are covered and shielded. Although can adopt the intraoperative perspective to obtain local backbone condition, the art person can't obtain the holistic balanced condition of backbone through the vision, and this has greatly influenced the art person to the balanced judgement of backbone coronal plane, sagittal plane, especially to young doctor, because the experience is not enough, the balanced condition such as not good that resumes of postoperative backbone is most likely to appear, and then influences the operation effect.
Disclosure of Invention
The invention aims to provide a spine balance assessment device and method which can assess the spine balance condition in real time during operation so as to help an operator to accurately and accurately correct the spine balance.
The invention provides a technical proposal that a spinal balance evaluation system for spinal deformity correction surgery comprises a preoperative planning system, a spinal positioning device and a target tracking system,
the preoperative planning system comprises a CT device and imaging software;
the spine positioning device comprises a plurality of groups of positioning parts with imaging marks;
the target tracking system is used to capture a position signal of the spinal positioning device.
The invention relates to a spinal balance assessment system for spinal deformity correction surgery, wherein the CT device can obtain CT images of the whole spine before surgery.
The invention relates to a spinal balance evaluation system for spinal deformity correction surgery, wherein the imaging software can reconstruct a 3D image of a spine and bones.
The invention relates to a spinal balance evaluation system for spinal deformity correction surgery, wherein the number of the groups of positioning pieces is the same as the number of the sections of a vertebral body of the spine to be operated.
The invention relates to a spinal balance evaluation system for spinal deformity correction surgery, wherein the number of each group of positioning elements is three, when the spine is thoracic spine, the three positioning elements are arranged at the midpoint of the posterior edge of spinous process and the midpoint of transverse processes at two sides, and when the spine is lumbar spine, the three positioning elements are arranged at the midpoint of the posterior edge of spinous process and the upper edges of articular processes at two sides.
The invention relates to a spinal balance evaluation system for spinal deformity correction surgery, wherein one end of a positioning piece is a positioning needle, and the other end of the positioning piece is provided with a marker capable of being imaged in a 3D image.
The invention relates to a spinal balance evaluation system for spinal deformity correction surgery, wherein a visual identification device is selected as a target tracking system.
In another aspect of the present invention, a method for evaluating spinal balance in a spinal deformity correction surgery comprises the steps of:
s10, before an operation, acquiring preoperative total spine CT by using a preoperative planning system, and performing 3D image reconstruction of the total spine and pelvis on the spine to be operated;
s20, in the operation, each group of spinal positioning devices is arranged at the designated position of each section of spinal cone, the directions of the coronal plane and the sagittal plane of the section of spinal cone are reconstructed, and meanwhile, corresponding spinal loci in a 3D image are marked on imaging software;
s30, capturing signals of the spine positioning devices by using a target tracking system, and obtaining the relative position of the spine positioning device on each section of spine according to a plane formed by the spine positioning devices on each section of spine;
and S40, adjusting the vertebral body close to the head side by taking the vertebral body close to the tail of the body as a standard according to the relative position of each group of spinal positioning devices, so that the position relation of the vertebral body on the imaging software accords with the position relation of the actual vertebral body in the operation.
The spinal balance evaluation method for a spinal deformity correction operation of the present invention is such that, in step S20, when the spine is a thoracic spine, designated positions are the midpoint of the posterior edge of the spinous process and the midpoints of the lateral processes on both sides, and when the spine is a lumbar spine, designated positions are the midpoint of the posterior edge of the spinous process and the upper edges of the zygapophyseal articular surfaces on both sides.
The spinal column balance evaluating system and the spinal column balance evaluating method for the spinal column deformity correction operation are different from the prior art in that the spinal column balance evaluating system and the spinal column balance evaluating method for the spinal column deformity correction operation can enable an operator to obtain the balance condition of the spinal column in the current state in the operation through the 3D imaging before the operation and the tracking of the position of the spinal column positioning device in the operation, simplify the operation condition, improve the success rate of the operation and also improve the situation of poor spinal column balance recovery after the spinal column deformity correction operation.
The spinal balance assessment system for spinal deformity correction surgery according to the present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a side view of a spinal positioning device installed at the midpoint of the posterior edge of a spinous process in a spinal balance assessment system for spinal deformity correction procedures of the present invention;
FIG. 2 is a schematic view of the position of the spinal column positioning device mounted on the midpoint of the posterior margin of the spinous process of the lumbar vertebrae in the spinal balance assessment system for spinal deformity correction surgery according to the present invention;
FIG. 3 is a schematic view of the position of the spinal positioning device on the upper edge of the facet of the zygapophyseal joint in the spinal balance assessment system for spinal deformity correction surgery of the present invention;
FIG. 4 is a schematic view of the position of the spinal positioning device at the midpoint of the transverse process of the thoracic vertebrae in the spinal balance assessment system for spinal deformity correction surgery according to the present invention;
FIG. 5 is a 3D imaging view of a spinal cone after installation of a spinal positioning device in the spinal balance assessment system for spinal deformity correction surgery of the present invention;
FIG. 6 is a spinal balance assessment system and method for spinal deformity correction surgery using a contrast image of the spinal vertebral body before and after use in accordance with the present invention;
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1
The invention relates to a spinal balance evaluation system for spinal deformity correction surgery, which comprises a preoperative planning system, a spinal positioning device and a target tracking system.
The preoperative planning system comprises a CT device and imaging software, and is used for obtaining a CT image of the whole spine through the CT device before operation and then reconstructing a 3D image of the spine and pelvis by using the imaging software. The imaging software is the existing software, and can firstly adopt medical software Mimics, for example, to convert CT data into an IGES format file which can be processed by three-dimensional engineering software, and then further process the file by using the three-dimensional software to obtain a 3D image.
The spinal positioning device comprises a plurality of groups of three positioning pieces with imaging marks. The positioning elements can be fixed on the vertebral column cone, wherein each vertebral column body adopts a group of positioning elements, the three positioning elements are respectively arranged at three fixed point positions of the vertebral column cone, when the vertebral column is a thoracic vertebra, as shown in figures 1 and 4, the three point positions are respectively the midpoint of the posterior edge of the spinous process and the midpoints of transverse processes at two sides, and when the vertebral column is a lumbar vertebra, as shown in figures 1-3, the three point positions are respectively the midpoint of the posterior edge of the spinous process and the upper edges of the zygapophysis articular surfaces at two sides. The selected position on the vertebral body of the vertebral column has obvious anatomical structure and is easy to distinguish and distinguish, and the positioning piece can be ensured not to be influenced by surgical operations such as nail placement and the like by selecting the position. After the positioning member is installed at the above position, as shown in fig. 5, the coronal plane and sagittal plane directions of the vertebral body can be reconstructed according to the imaging software, and the corresponding spinal locus in the 3D image is labeled on the software. The group number of the positioning pieces can adopt the positioning devices with corresponding group number according to the number of the operation sections. In this embodiment, the positioning element has a pin structure, one end of the positioning element is a positioning pin, and the other end of the positioning element is provided with a marker, so that imaging can be performed in a 3D image.
The target tracking system selects visual identification equipment. The target tracking system may capture a spine positioning device signal. Three points of each group of positioning parts form a plane, and the relative position of a certain section of spine can be obtained through the positions of two adjacent planes, so that a 3D image of the spine is adjusted, and an operator can obtain the balance condition of the spine in the current state.
After the trunk is adjusted in each operation, the actual balance condition of the spine and the position relation between the vertebral bodies have certain deviation with the 3D image of the spine reconstructed in the preoperative imaging software. On the imaging software, the imaging positions of two adjacent vertebral bodies can be determined according to planes formed by the two groups of positioning devices, and the vertebral body close to the tail part of the body is taken as a standard to adjust the vertebral body close to the head side, so that the position relation of the vertebral body on the imaging software accords with the position relation of the actual vertebral body in the operation.
Example 2
A spinal balance assessment method incorporating the spinal balance assessment system for spinal deformity correction surgery of the present invention includes the steps of:
s10, before an operation, acquiring preoperative total spine CT by using a preoperative planning system, and performing 3D image reconstruction of the total spine and pelvis on the spine to be operated;
s20, in the operation, each group of spinal column positioning devices are arranged at the designated position of each section of spinal cone, when the spinal column is a thoracic spine, three point positions are respectively the midpoint of the posterior edge of the spinous process and the midpoints of transverse processes on two sides, when the spinal column is a lumbar spine, the three point positions are respectively the midpoint of the posterior edge of the spinous process and the upper edges of the zygapophysis articular surfaces on two sides, the directions of the coronal plane and the sagittal plane of the section of the spinal cone are reconstructed, and meanwhile, corresponding spinal column point positions in a 3D image on imaging software are marked;
s30, capturing signals of the spine positioning devices by using a target tracking system, and obtaining the relative position of the spine positioning device on each section of spine according to a plane formed by the spine positioning devices on each section of spine;
and S40, adjusting the vertebral body close to the head side by taking the vertebral body close to the tail of the body as a standard according to the relative position of each group of spinal positioning devices, so that the position relation of the vertebral body on the imaging software accords with the position relation of the actual vertebral body in the operation.
The spine balance evaluation system and method for the spine malformation correction operation can enable an operator to obtain the balance condition of the spine in the current state in the operation through the 3D imaging before the operation and the tracking of the position of the spine positioning device in the operation, simplify the operation condition, improve the success rate of the operation and also improve the condition of poor recovery after the spine malformation correction operation.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.
Claims (9)
1. A spinal balance assessment system for use in a spinal deformity correction procedure, comprising: comprises a preoperative planning system, a spine positioning device and a target tracking system,
the preoperative planning system comprises a CT device and imaging software;
the spine positioning device comprises a plurality of groups of positioning parts with imaging marks;
the target tracking system is used to capture a position signal of a spinal positioning device.
2. The spinal balance assessment system for use in a spinal deformity correction procedure of claim 1, wherein: the CT apparatus is capable of obtaining a CT image of the entire spine preoperatively.
3. The spinal balance assessment system for use in a spinal deformity correction procedure of claim 1, wherein: the imaging software is capable of reconstructing a 3D image of the spine and bones.
4. A spinal balance assessment system for use in a spinal deformity correction procedure according to claim 1, wherein: the number of sets of positioning elements is the same as the number of segments of the vertebral body of the spine to be operated on.
5. A spinal balance assessment system for use in a spinal deformity correction procedure according to claim 1, wherein: the number of each group of positioning parts is three, when the spine is a thoracic vertebra, the three positioning parts are arranged at the midpoint of the back edge of the spinous process and the midpoints of transverse processes at two sides, and when the spine is a lumbar vertebra, the three positioning parts are arranged at the midpoint of the back edge of the spinous process and the upper edges of articular processes at two sides.
6. The spinal balance assessment system for use in a spinal deformity correction procedure of claim 1, wherein: one end of the positioning piece is a positioning needle, and the other end of the positioning piece is provided with a marker capable of imaging in the 3D image.
7. The spinal balance assessment system for use in a spinal deformity correction procedure of claim 1, wherein: the target tracking system selects visual identification equipment.
8. A spinal balance assessment method for use in a spinal deformity correction surgery, comprising: the method comprises the following steps:
s10, before an operation, acquiring preoperative total spine CT by using a preoperative planning system, and performing 3D image reconstruction of the total spine and pelvis on the spine to be operated;
s20, in the operation, each group of spinal positioning devices is arranged at the designated position of each section of spinal cone, the directions of the coronal plane and the sagittal plane of the section of spinal cone are reconstructed, and meanwhile, corresponding spinal loci in a 3D image are marked on imaging software;
s30, capturing signals of the spine positioning devices by using a target tracking system, and obtaining the relative position of the spine positioning device on each section of spine according to a plane formed by the spine positioning devices on each section of spine;
and S40, adjusting the vertebral body close to the head side by taking the vertebral body close to the tail of the body as a standard according to the relative position of each group of spinal positioning devices, so that the position relation of the vertebral body on the imaging software accords with the position relation of the actual vertebral body in the operation.
9. The spinal balance assessment method for spinal deformity correction surgery according to claim 8, wherein: in step S20, when the spine is a thoracic spine, the designated positions are the midpoint of the posterior edge of the spinous process and the midpoints of the lateral transverse processes on both sides, and when the spine is a lumbar spine, the designated positions are the midpoint of the posterior edge of the spinous process and the upper edges of the zygapophyseal articular surfaces on both sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211136654.8A CN115778537A (en) | 2022-09-19 | 2022-09-19 | Spinal balance assessment system and method for spinal deformity correction surgery |
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| CN202211136654.8A CN115778537A (en) | 2022-09-19 | 2022-09-19 | Spinal balance assessment system and method for spinal deformity correction surgery |
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| CN202211136654.8A Pending CN115778537A (en) | 2022-09-19 | 2022-09-19 | Spinal balance assessment system and method for spinal deformity correction surgery |
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