Manufacturing method of hip joint spacer

Abstract

The invention relates to a manufacturing method of a hip joint spacer. The method comprises the following steps: (1) shooting iconography data of a hip joint before an exclusion, and designing a placeholder manufacturing scheme; (2) selecting an artificial femoral head prosthesis material tightly matched with the acetabulum; (3) preparing antibiotic bone cement; (4) selecting a matched bone cementfemoral stem manufacturing mold according to the shape of the medullary canal file tool; (5) padding disinfected transparent plastic paper into the bone cement femoral stem manufacturing mold, and then putting the artificial femoral head prosthesis material; (6) taking a kirschner wire as a skeleton, putting bone cement into the bone cement femoral stem manufacturing mold, and pressing into a femoral stem by using the bone cement femoral stem manufacturing mold; and (7) opening the bone cement femoral stem manufacturing mold to obtain the hip joint spacer. According to the hip joint spacer, damage of the spacer to surrounding sclerotin is reduced, and functional recovery of a patient after the exclusion is facilitated.

Description

technical field [0001] The invention belongs to the technical field of surgical implants, and in particular relates to a manufacturing method of a hip joint spacer. Background technique [0002] At present, when postoperative periprosthetic infection occurs in artificial joint replacement surgery, or when there is serious infection in the joint itself that needs to be solved by artificial joint surgery, joint exclusion surgery is generally used clinically to control infection. Such patients generally undergo about 3- The joint infection was healed after June's evacuation operation, and then artificial joint replacement was performed again. [0003] In joint exclusion surgery, the previous joint prosthesis is usually removed first. At this time, there will be a huge cavity inside the joint that is consistent with the shape of the prosthesis, and some germs and infectious substances will remain around this cavity more or less , so clinically doctors usually use antibiotic-con...

AI Technical Summary

Problems solved by technology

[0005] 1. All manual work with different experience;

[0006] 2. The size and shape are difficult to fit, and it can be done in one step;

[0007] 3. Postoperative patients have poor function, often have joint pain and joint mobility difficulties, and it is difficult to help patients survive the 3-6 months required for desertion;

[0008] 4. Traditional spacers cannot perfectly fill the cavity, causing osteophytes, scars and even inflammatory tissues to grow into the cavity after 3-6 months. During the revision, these need to be cleaned, resulting in serious bone loss

[0009] 5. The rough surface of the bone cement is in contact with the bone around the cavity, and the contact is non-uniform, and the surrounding bone will be further damaged during the 3-6 month idle period, resulting in serious bone loss during revision

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