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Computer-aided design orthopedics department osteotomy, orthotics and immobilization integrated guide plate and manufacturing method

A computer-aided and production method technology, applied in computer-aided surgery, computer-aided planning/modeling, medical science, etc., can solve the problem of uncontrollable orthopedic space angle, inaccurate measurement of osteotomy volume, and many times of X-ray exposure, etc. problem, achieve the effect of shortening operation time, reducing radiation exposure time, and reducing operation risk

Active Publication Date: 2017-11-14
TIANJIN HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the amount of osteotomy cannot be accurately measured, the angle of the orthopedic space is uncontrollable, and the number of X-ray exposures in the operation is too high in traditional surgical techniques, the present invention provides a computer-aided design orthopedic osteotomy orthopedic fixation integrated guide plate and a production method. The method is based on the healthy side or the normal structure and function parameters as the standard. When the patient has the healthy side limbs, the mirror image model can be generated by mirroring the healthy side, and then matched with the mirror model of the affected side and the healthy side to obtain the angle that needs to be corrected. According to the corresponding osteotomy angle, the surgical guide plate can be made, and the precise structure and function can be completed without fluoroscopy during the operation; when the patient has no reference to the healthy limb, it can be completed according to the normal structure and function parameters of the human body Osteotomy and correction of the affected side, and then make a surgical guide to complete the repair of precise structure and function

Method used

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  • Computer-aided design orthopedics department osteotomy, orthotics and immobilization integrated guide plate and manufacturing method
  • Computer-aided design orthopedics department osteotomy, orthotics and immobilization integrated guide plate and manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0085] This embodiment is a computer-aided design method for the production of an integrated guide plate for osteotomy, orthopedics and fixation applied to the proximal femur. This case is a malunion of the femoral neck fracture, the ipsilateral neck shaft angle is 91°, and the anteversion angle is poor compared to the healthy side 15.26°. Correction was performed by using a wedge-shaped closed osteotomy of the proximal femur.

[0086] 1. Modeling and registration. Use mimics software and CT data to reconstruct a three-dimensional model of the patient’s healthy side of the femur, mirror the healthy side of the femur, and then use the mirrored model of the healthy side to match the model of the affected side. The main marks are the greater trochanter, minor trochanter, and femur. The backbone shall prevail ( Figure 1-3 ).

[0087] 2. Parameter measurement. Measure the femoral neck shaft angle, anteversion angle, height difference, eccentricity and other parameters of the health...

Embodiment 2

[0098] This embodiment is a computer-aided design method for manufacturing an integrated guide plate for orthopedic osteotomy and orthopedic fixation applied in knee varus deformity. In this case, the knee joint distal femur varus 6°; meanwhile the tibial plateau varus 8°, retroversion 23°. The method of double osteotomy is adopted, that is, closed osteotomy is planned for the distal femur and open osteotomy for the proximal tibia.

[0099] In this example, because the patient’s bilateral knee joints have different degrees of varus deformity, this example completes the osteotomy correction of the affected side according to the normal structure and functional parameters, so as to obtain the angle to be corrected and the corresponding osteotomy angle. Out the surgical guide,

[0100] 1. Modeling. The mimics software and CT data are used to reconstruct the three-dimensional model of the patient's bilateral knee joints.

[0101] 2. Parameter measurement. Measure the length of the aff...

Embodiment 3

[0118] This embodiment is a computer-aided design method for manufacturing an integrated guide plate for osteotomy, orthopedics, and fixation used in foot varus deformity. The patient has a single foot varus deformity with 8.9° tibiotalar articular surface varus and 6.6° anterior tilt. An open osteotomy at the distal end of the tibia was used for correction.

[0119] 1. Modeling and registration. .Using mimics software and CT data to reconstruct the patient's bilateral ankle joint three-dimensional model, mirror the uninvolved ankle joint, and then use the uninvolved mirrored model to match the model of the affected side, mainly tibia shaft, tibial tubercle, Fibula notch and other matching shall prevail.

[0120] 2. Parameter measurement. Measure the bilateral calf length, distal tibia ankle joint plane angle, talus tilt angle, tibia lateral plane angle and other parameters on the stereo image.

[0121] 3. Osteotomy. According to the difference in the plane angle of the bilateral...

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Abstract

The invention belongs to the field of bone surgery osteotomy orthotics devices, and particularly relates to a computer-aided design orthopedics department osteotomy, orthotics and immobilization integrated guide plate and a manufacturing method. The manufacturing method comprises the following steps: collecting bilateral bone data, and establishing a bilateral bone three-dimensional model; if a patient has an uninjured side limb, taking an uninjured side mirror model as a reference to determine an osteotomy angle and an osteotomy position, and performing orthotics and immobilization on an affected side; if a patient has no uninjured side limb for reference, performing osteotomy and orthotics on the affected side according to a normal structure and functional parameters, thus obtaining an angle needing to be corrected and a corresponding osteotomy angle, and achieving orthotics and immobilization; manufacturing the guide plate according to the osteotomy position, a position of an implanted steel plate and the like. The computer-aided design orthopedics department osteotomy, orthotics and immobilization integrated guide plate has the beneficial effects that by applying the guide plate, osteotomy, orthotics and immobilization are achieved in one step, immediate correction is realized, fluoroscopy during operation is not needed, operation time is shortened while radiation injury to the patient and doctors is reduced, risks such as bleeding and anesthetic accidents are reduced, the operation of orthopedics department osteotomy and orthotics is simplified, and operation accuracy is improved.

Description

Technical field [0001] The invention belongs to the field of orthopedic osteotomy orthopedic equipment, and particularly relates to a computer-aided design of orthopedic osteotomy orthopedic fixation integrated guide plate and a manufacturing method. Background technique [0002] With the increasing rise of computer-assisted orthopedics, 3D printing-assisted orthopedic precision surgery technology has gradually increased. This technology is mainly used in fracture healing, congenital bone deformity or dysplasia, joint replacement, etc., when one side of the bone and joint structure Or when the function is abnormal, we can use the healthy side as a reference to correct the affected side. However, the angle and direction of the osteotomy are very strict. The angle and direction of the osteotomy are not accurate, which will directly affect the force line of the limb or the recovery of joint function. It even leads to the failure of the entire osteotomy orthopedic surgery, therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B34/10
CPCA61B34/10A61B2034/102
Inventor 马信龙马剑雄王颖孙磊卢斌王岩赵兴文李飞范峥睿韩彪柏豪豪姜轩田爱现董本超
Owner TIANJIN HOSPITAL
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