Method for making customized acetabular prosthesis and auxiliary method for total hip replacement arthroplasty

Abstract

The invention relates to a method for making customized acetabular prosthesis and an auxiliary method for total hip replacement arthroplasty, which relate to the technical field of the total hip replacement arthroplasty. The method comprises the followings steps: scanning the hip joint of a patient by using an electron tomography technique before an operation, obtaining three-dimensional data of the hip joint of the patient, and introducing the obtained three-dimensional data into the three-dimensional software to reconstruct an acetabular model of the patient; processing the patient's acetabular model in the three-dimensional software to obtain the acetabular model of the patient after milling; using a reverse engineering technique to obtain a prosthetic model matching the above model, and then using a 3D printing technology to print the prosthetic model to the customized acetabular prosthesis, and using the patient acetabular model to formulate a tool milling trajectory and the milling process parameters; before the operation, introducing the tool milling trajectory and the process parameters into the robot control software, and using a robot for doctor to mill the patient's acetabulum, wherein the customized acetabular prosthesis is provided for the doctor to mount the acetabulum of the patient after milling. The method can reduce the doctor's surgical burden and improve the quality of milling.

Description

technical field [0001] The invention relates to the technical field of total hip replacement, in particular to a manufacturing method of a personalized acetabular prosthesis and an auxiliary method for total hip replacement. Background technique [0002] Since the 1960s, artificial hip replacement has gradually developed in my country. It has remarkable effects in the treatment of femoral head necrosis, osteoarthritis, femoral neck fracture, traumatic arthritis, rheumatoid arthritis, benign and malignant bone tumors and other diseases, and has become the gospel of countless joint disease patients. Artificial hip replacement has gradually become the standard operation for hip diseases due to its advantages of less trauma, less bleeding, less postoperative pain, faster recovery, and reduced complications of long-term bed rest for elderly patients. Coupled with today's aging population, the number of patients with osteoarthritis is on the rise, and more and more artificial rep...

AI Technical Summary

Problems solved by technology

[0007] Limitations: Most of the existing technologies are based on optimizing the structure of the traditional hemispherical acetabular reamer and the tooth shape and distribution of the cutting teeth

Although the milling quality of the acetabular reamer can be improved to a certain extent, these technologies have not changed the existing operation method, and the operation is still performed manually by the doctor. This operation method requires high surgical experience and physical strength of the doctor. Requirements, at the same time, it is still difficult to solve the error caused by manual operation during milling

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