Manufacturing method of temporary spacer in artificial joint replacement operation

Abstract

The invention discloses a manufacturing method of a temporary spacer in an artificial joint replacement operation. The manufacturing method of the temporary spacer is used when the infection condition occurs after operation, and comprises the following steps that before infection operation, the injection joint and peripheral bone are subjected to three-dimensional CT (computed tomography) scanning, and the artificial joint and peripheral bone form is reestablished; on the basis of the 3D (three-dimensional) CT scanning reestablishing result, a temporary spacer mold is manufactured by a 3D printing technology; the manufactured temporary spacer mold is subjected to disinfection treatment; in the infection operation process, the temporary spacer is directly manufactured by utilizing the manufactured temporary spacer mold. The manufacturing method of the temporary spacer in the artificial joint replacement operation has the advantages that medical workers can conveniently and directly manufacture the temporary spacer according to the mold manufactured before operation, the temporary spacer more conforms to the local joint form, after the temporary spacer is placed, the proper gap and tension can be properly maintained, and the generation of joint capsule soft tissue contracture and disuse bone mass loss during the interval between two operations is avoided.

Description

technical field [0001] The invention relates to a manufacturing method of a temporary spacer, in particular to a 3D printing manufacturing method of a temporary spacer in an artificial joint replacement operation. Background technique [0002] Artificial joint replacement is a mature treatment method, which refers to the use of metal, high molecular polyethylene, ceramics and other materials to make artificial joint prostheses according to the shape, structure and function of human joints, and implant them into the human body through surgical techniques. Replace the diseased joint function, achieve the purpose of relieving joint pain and restoring joint function. [0003] Infection after arthroplasty is the leading cause of failure of arthroplasty surgery and can lead to catastrophic complications. Once postoperative infection occurs, it will eventually lead to the failure of the operation, and the patient will be forced to remove the prosthesis or even amputate, causing me...

AI Technical Summary

Problems solved by technology

Once postoperative infection occurs, it will eventually lead to the failure of the operation, and the patient will be forced to remove the prosthesis or even amputate, causing mental and economic pressure on the patient

[0004] At present, the second-stage revision has been proven to be the most effective method for infection after radical surgery, but there is no uniform production standard and production method for the temporary spacer used after the prosthesis is removed.

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