Recently, according to Mohou.com, we learned that,A hospital in YantaiFoot and ankle surgery becomes personalized3DPartial replacement of a printed ankle prosthesis successfully relieved the patient’s pain. Application of this technology to obsolescencePestleNew hope for preserving joint function in patients with malunions or fractures.
△The doctor operates on the patient
29Mr. Wang is11A few months ago, he accidentally fell and injured his right ankle, causing a hidden fracture of the joint. After receiving conservative treatment for several months, he gradually developed ankle pain, which seriously affected his daily activities. This year3In August, he reported to the Foot and Ankle Surgery Department of Yantai Mountain Hospital for treatment. After careful examination, Qu Wenqing, director of the Department of Foot and Ankle Surgery at Yantai Mountain Hospital, diagnosed him with an old syndrome.PestleMalunion fracture, traumatic arthritis of the ankle joint,CTand magnetic resonance imaging showed widening of the lower end of the tibia and partial collapse of the articular surface of the tibial dome.8mm, talar cartilage defect, it is the serious inadequacy of the tibiotalar joint and the wear of the cartilage that causes severe pain in patients. After listening to Director Qu’s introduction, the patient was deeply worried about his condition and full of expectations but worried about the treatment.
After numerous inquiries, Mr. Wang finally happily chose to go to Yantaishan Hospital for surgical treatment. After a detailed assessment, in order to preserve the function of his ankle joint as much as possible, the foot and ankle surgical team finally decided to operate on him.3DPartial printed prosthetic ankle replacement.
It is reported to be a custom project made in Shandong province.3DThere are few national experiences to draw on in partial replacement of ankle joints with printed prostheses. Chang Liming, deputy director of Yantaishan Hospital, and Qu Wenqing, director of the Department of Foot and Ankle Surgery, attached great importance to it, made detailed preoperative preparations for the patient, and formulated a personalized surgical plan . Qu Wenqingyu3DThe R&D team of the printing center has conducted more than ten technical discussions and drawn dozens of line drawings. They designed special osteotomy guide plates for the significantly enlarged tibial dome and collapsed articular surface in the anterior and posterior diameter and an individualized distal tibial metal prosthesis. Polyethylene inserts were designed for the lateral ankle joint. Precise and meticulous preoperative design guarantees the operation. During the operation, through the precise guidance of the osteotomy guide plate, the multiplane osteotomy of the distal tibia restores the normal width of the anterior and posterior diameter of the fornix and removes. damaged and collapsed fragments of cartilage and bone preserve the normal articular surface of the tibia as much as possible. Surgical team time2Partial replacement of the right ankle joint was successfully completed within one hour. After the operation, the joints returned to good fit and the patient was recently successfully discharged from the hospital.
△3DPrinted osteotomy guides and metal prostheses
Qu Wenqing said that in the past, facing obsolescencePestleFor malunions of fractures, osteotomy, orthopedics and ankle fusion are mainly used. Since the patient is relatively young and part of the joint surface is still flat, osteotomy and orthopedics alone cannot effectively delay the development of traumatic arthritis, and the postoperative effect is significant . uncertain. After arthrodesis, patients experience a complete loss of joint function, which seriously affects daily life. Current total ankle arthroplasty technology is relatively mature. The Foot and Ankle Surgery Department of Yantaishan Hospital independently performed replacement surgery. She can maintain a certain degree of joint mobility. However, for this young patient, the trauma is relatively. large and bone mass is lost. There is a strong possibility of secondary renovation at a later stage. In this case,3DThe unique advantage of printed partial prosthetic ankle replacement is that the osteotomy guide and distal tibial prosthesis are customized according to the patient’s fracture characteristics. While maintaining mobility of the ankle joint, it is less invasive and preserves bone mass as much as possible. , it protects adjacent joints and prevents secondary arthritis caused by increased pressure on adjacent joints, which can significantly improve the patient’s quality of life.
Yantaishan Hospital’s Foot and Ankle Surgery Department Was Successfully Launched This Time3DPrinting partial prosthetic ankle replacements has filled the gap in this technology in the province. It is reported that Yantaishan Medical Hospital3DThe Printing Innovation Research Center is Yantai Medical3DPrinting Innovation Research Center jointly established by Yantaishan Hospital and the Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine3DCo-founded by the Printing Technology Clinical Translation R&D Center at2021Year10the month has been established. The center has3DExperimental sites such as guide plates, model printing laboratories and implant prosthetic laboratories mainly study medical imaging, processing, modeling and augmented reality technologies, and use computer digital technology to facilitate surgical planning and3DThe clinical application of printing technology uses new scientific concepts, solid theoretical foundations and advanced diagnosis and treatment models to achieve widespread application in clinical medicine with more precise diagnosis and treatment. Yantaishan Hospital3DThe Printing Innovation Research Center has always adhered to the concept of “human-oriented scientific and technological innovation”. With the strong support of Academician Dai Kerong of Shanghai Ninth Academy and Binzhou Medical College, it has continuously increased its investment in scientific research and strives to further utilize scientific research results for the benefit of patients .
source:Qilu one point
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