Tibia tunnel locating device and method based on personalized navigation template
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A technology of navigation template and positioning device, which is applied in fixers, medical science, surgery, etc. It can solve the problems of difficult positioning of personalized tunnel anatomy, achieve reliable surgical results, improve the success rate, and shorten the operation time.
Active Publication Date: 2014-10-08
GUANGXI UNIV
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[0010] Based on the above circumstances, the present invention provides a low-cost, high-precision, easy-to-use personalized tool and method for assisting the positioning of the anterior cruciate ligament tunnel, so as to solve the problem of difficulty in the anatomical positioning of the personalized tunnel in the current prior art
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Embodiment 1
[0054] The steps of the device and method for assisting single-bundle reconstruction of the anterior cruciate ligament in tibial tunnel positioning according to the present invention are as follows:
[0055] Step 1: Collect the CT data of the patient's knee joint in straight position, and use the mimics software to extract and export the tibial and femoral point data with clear outlines.
[0056] Step 2: Collect the MRI data of the patient's knee joint in straight position, use mimics software to extract point data including tibia, femur, meniscus, cartilage and cruciate ligament and export it.
[0057] Step 3: Use imageware to sample the data obtained in Step 1 and Step 2, remove noise points, denoise and smoothen, perform 3D reconstruction respectively, and obtain the femur and tibia with the tissue structure of meniscus, cartilage and cruciate ligament through registration Knee model.
[0058] Step 4: In the cross-sectional direction of the computer three-dimensional model...
Embodiment 2
[0070] The steps of the device and method for assisting the positioning of the tibial tunnel for double-bundle reconstruction of the anterior cruciate ligament of the present invention are as follows:
[0071] Step 1: Collect the CT data of the patient's knee joint in straight position, and use the mimics software to extract and export the tibial and femoral point data with clear outlines.
[0072] Step 2: Collect the MRI data of the patient's knee joint in straight position, use mimics software to extract point data including tibia, femur, meniscus, cartilage and cruciate ligament and export it.
[0073] Step 3: Use geomagic studio to sample the data obtained in step 1 and step 2, remove noise, reduce noise and smooth processing, respectively perform 3D reconstruction and obtain the femur with meniscus, cartilage, cruciate ligament tissue structure and Tibial Knee Model.
[0074] Step 4: In the cross-sectional direction of the computer three-dimensional model, the anatomical...
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Abstract
The invention relates to a tibia tunnel locating device and method based on a personalized navigation template and belongs to cruciate ligament reconstruction surgery. The method comprises the steps that firstly, CT data and MRI data of a patient are collected, a data model is processed, and three-dimensional reestablishment is conducted on the data model; secondly, according to the three-dimensional model, the position of a tunnel is measured and determined, a bone surface needed by locating is obtained through partition, and a navigation template model is established; thirdly, the navigation template is manufactured through the rapid forming technology; finally, locating and verification are conducted through the navigation template and a locating device of a guider, and then a Kirschner wire is inserted through drilling. According to the tibia tunnel locating device and method based on the personalized navigation template, the navigation template is easy to locate and easy to operate, due to the auxiliary locating calibration of the guider, it is avoided that the error of the Kirschner wire inserted into the inner opening of the tunnel through drilling is amplified due to navigation template catheter small-angle swing deviation caused by soft tissues residues and other factors, the locating precision can be effectively guaranteed, and the surgical effect is more reliable.
Description
technical field [0001] The invention belongs to the technical field of computer-aided medical operations, and relates to an intraoperative tibial tunnel positioning and navigation technology during cruciate ligament reconstruction, in particular to an intraoperative tibial tunnel positioning device and method based on a personalized navigation template during cruciate ligament reconstruction. Background technique [0002] With the development of transportation technology and the improvement of sports competition level, the cases of knee cruciate ligament tear caused by high energy injury continue to increase. The cruciate ligament of the knee is very important to maintain the stability of the knee joint. If it is not repaired effectively, it may lead to serious consequences such as meniscus damage, cartilage wear, accelerated knee degeneration and osteoarthritis. However, due to its own biological Due to environmental and blood supply characteristics, the self-healing abilit...
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