The application of Medical 3D Printing in orthopedics
1.Before surgery planning
For fracture patients, especially those with comminuted fractures, preoperative 3D printed solid anatomical models are helpful for analyzing or simulating surgical procedures
The application of 3D printing technology before surgery can enable doctors to have a more intuitive understanding of the patient's condition, which is conducive to the diagnosis and treatment of the disease.
The clinical results show that the 3D model group has a shorter operation time, less intraoperative blood loss and less postoperative drainage than the non-3D model group, which is conducive to the accurate reduction of fractures, improves the surgical precision, shortens the operation time, and achieves better surgical results.
2. Preparing surgical guides
The main function of the surgical guide plate is to help the precise reduction of fractures, assist screws and other implants or instruments to reach the predetermined position, improve the convenience of surgical operations, reduce the error rate, and significantly improve the accuracy of surgical operations.
The use of 3D printing in medical surgery can significantly improve surgical accuracy, reduce intraoperative risks, and significantly improve surgical safety and clinical efficacy satisfaction. It is an effective, feasible and worthy of promotion technology.
The application of 3D printed surgical guides is in line with the concept of precision medicine in the 21st century, which can improve surgical efficacy while reducing patient damage.
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3. 3D printing personalized medical implants
Implants are often used in the repair of bone defects. The size and shape of traditional orthopaedic implants are fixed, and a bone rasp needs to be used to trim the host bone during surgery to match the shape and size of the prosthesis and the implant, while 3D printing can be tailor-made for patients with bone defects.
3D printing can realize the bionic bone trabecular structure. By adjusting the porous structure parameters, the elastic modulus can be between cancellous bone and cortical bone, avoiding stress shielding, improving the initial stability of porous tantalum implants, and imitating bone. The trabecular structure induces the ingrowth of new bone tissue while improving the long-term stability of the implant.
The application of 3D printing implants to repair bone defects has achieved good mid- and long-term clinical results in clinical practice, which has obvious advantages over conventional surgery.
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4. Customized rehabilitation aids
For adults and children with limb paralysis, dysfunction and developmental deformities, rehabilitation aids can significantly improve dysfunction, correct deformities, and promote rehabilitation. However, due to the insufficiency of traditional craftsmanship, there are many limitations. For example, the production time is long, cumbersome, unsightly, and does not fit the contours of the patients body.
At present, 3D printing rehabilitation aids have achieved phased results and are being promoted and applied in clinical practice.
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