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Method for virtually building anterior cruciate ligament on femur and tibia tunnels

A technology for the anterior cruciate ligament and tibia, applied in the field of computer-aided medicine, can solve the problems of graft adhesion, impingement, obstacles, etc.

Inactive Publication Date: 2013-02-27
FIRST AFFILIATED HOSPITAL OF KUNMING MEDICAL UNIV
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Problems solved by technology

[0004] At present, arthroscopic ACL reconstruction is the most widely performed ACL reconstruction. Although this operation can reduce the incision and reduce soft tissue trauma, it also brings the risk of losing the comprehensive view of the tissue structure, which may easily lead to ACL in the tibia. Mispositioning of femur and femur resulting in displacement of the graft bone tunnel, resulting in impingement of the anterior cross graft with the femoral intercondylar notch, accompanied by graft adhesion, persistent flexion contracture of the knee joint, and secondary dysfunction

Method used

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  • Method for virtually building anterior cruciate ligament on femur and tibia tunnels
  • Method for virtually building anterior cruciate ligament on femur and tibia tunnels
  • Method for virtually building anterior cruciate ligament on femur and tibia tunnels

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Embodiment 1

[0068] 1. A 21-year-old female patient with ACL injury was selected. She was admitted to the hospital because of "swelling and pain in the right knee with instability for 1 week caused by a collision while playing ball". Both knee joints in extension position MRI and flexion position CT scanning were performed. The scanning position in knee joint extension position was: the knee joints were naturally straightened and externally rotated by 10°-15°, and the head coil was used as the receiving coil. The MRI equipment is a GE 1.5T superconducting magnetic resonance machine (GE Company, the United States), and the sagittal 3D proton density-weighted imaging sequence is chosen to scan. The imaging scan parameters are: TR 11000ms, TE 25ms; slice thickness 1.0 mm; slice distance 0mm; echo chain 14; excitation 2 times; matrix 192 / 320; FOV 18. 50 slices of coronal, 50 slices of sagittal, and 50 slices of frontal slices were obtained for each entity scan, and the MRI two-dimensional imag...

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Abstract

The invention discloses a method for virtually building an anterior cruciate ligament on femur and tibia tunnels. The method comprises the following steps of firstly, carrying out straightening part nuclear magnetic resonance scanning and flexed part CT (computerized tomography) scanning on two keen joints of a patient with damaged anterior cruciate ligament, then importing the scanning data of the two keen joints into medical image reconstruction software to carry out three-dimensional reconstruction, then importing the three-dimensional data into reverse project software to further finish and beautify, then sorting and calculating various types of data of the femur, the tibia and the anterior cruciate ligament by using a computer, and virtually forming the entrance and exit of the anterior cruciate ligament on the femur and the tibia, and marking points on the surfaces of the femur and the tibia. The method is suitable for realizing the ACL (anterior cruciate ligament) accurate positioning and implanting of individuals, and is an effective new path for improving the ACL restoration and reconstruction therapeutic effects, and a junior surgeon can carry out pre-operation planning, operation simulation and exercising, operation teaching, and instruction of practical operation and post-operation rehabilitation through the information in the virtual environment.

Description

technical field [0001] The invention belongs to the technical field of computer-aided medicine, relates to a preoperative planning virtual technology for anterior cruciate ligament reconstruction, in particular to a method for virtual construction of anterior cruciate ligament tunnels between femur and tibia. Background technique [0002] Anterior Cruciate Ligament (ACL) injury is a common injury of the knee joint. In recent years, with the increase of traffic accidents, the improvement of our country's competitive sports level and the widespread development of mass sports, the incidence of ACL injury is increasing day by day. ACL injury is difficult to heal on its own, and improper treatment can lead to instability of the knee joint, secondary meniscus, cartilage damage, and premature joint degeneration of the knee joint, seriously affecting joint function and the quality of life and work of patients. [0003] The damaged ACL must be repaired in time. ACL reconstruction su...

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Application Information

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IPC IPC(8): A61B19/00A61B34/10
Inventor 李彦林邢琪何川陈锦雄王国梁王福科
Owner FIRST AFFILIATED HOSPITAL OF KUNMING MEDICAL UNIV
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