Recently, the Department of Hand Surgery of Shandong University Second Hospital/Successful application of foot and ankle surgery3DPrinting technology for a78A 20-year-old man underwent total ankle arthroplasty and was fully applied to the design and production of prosthetics and trial models, preoperative simulation surgery and intraoperative osteotomy positioning.3DPrinting technology preserves the function of the ankle joint as much as possible, and the elderly recover well after surgery.
Already this year78Grandma Shang (pseudonym), who was 2 years old, developed pain in her left ankle after spraining her ankle. Since ankle sprains are common, she didn’t pay much attention to it at the time until the pain worsened to the point that she could no longer pay attention to it. After being admitted to a local hospital, she underwent joint replacement surgery on her left ankle.
3DPrinted ankle replacement surgery is in 3DCTScan to establish an ankle joint database, and use mirror flipping technology to design and produce a high-precision ankle joint model based on the healthy side of the ankle joint, including a metal prosthesis and an osteotomy guide plate.
Grandma Shang extracted before operationCTData, three-dimensional digital reconstruction, computer schematic design, trial mold and model design and printing, prosthetic design, guide plate design… Hand Surgery, Shandong University Second Hospital/The team of Professor Hu Yong, director of foot and ankle surgery, deliberated on the design several times to prepare for the operation.1moon10On the same day, Grandma Shang ushered in her operation day. Hu Yong and Cao Songhua cooperated with the close cooperation of the anesthesiology department and the operating room, the team cleaned the synovial tissue and bone hyperplasia around the patient’s previous prosthesis. , and removed Broken prosthesis. Then, the osteotomy guide plate was placed in front of the ankle. After positioning, fluoroscopy showed that the alignment was good. Replace the osteotomy module, tibial osteotomy and talus osteotomy. Place the tibial prosthesis trial mold and the talus prosthesis trial mold. Once they are adapted,3DPrint the tibial support and place it on the tibia,3DThe printed talus articular surface is correctly placed, and finally the polyethylene pad is placed in the middle of the tibial plateau and talus articular surface. After fluoroscopy, the prosthetic body line was good and the joints moved well.3More than an hour later, the surgical team successfully completed the left ankle replacement, and Grandma Shang returned to the ward. After the operation, the joints regained good correspondence, and the patient was successfully discharged from the hospital before the Spring Festival.
“Precise and meticulous preoperative design provides a guarantee for the operation, and the precise guidance of the osteotomy guide plate during the operation also greatly improves the accuracy and success rate of the operation. » Cao Songhua said that although traditional treatment methods can relieve pain, they sacrifice the ankle. The patient’s joint mobility and walking function are greatly affected.3DThe printed total ankle arthroplasty can be customized to make the replacement prosthesis more suitable. While relieving pain, it can maintain the mobility of the patient’s ankle joint as much as possible, thereby achieving a better quality of life.
In recent years,“Custom”3DPrinted joint replacement surgery has gradually become a new technological trend in the field of joint replacement. Department of Hand Surgery, Shandong University Second Hospital/foot and ankle surgery3DIt has relatively successful experience in printing joint replacements, bringing more choices and good news to patients, benefiting more patients. It is understood that Professor Hu Yong’s team last year11month completed successfully3DThe impression of total talar arthroplasty combined with ankle arthroplasty has not been reported in the national literature after review of the data. Currently, Professor Hu Yong’s team is applying3DThe printing technology was used to perform ankle arthroplasties on four patients, with good postoperative functional recovery.
Source: Antarctic Bear
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