Application of Medical Titanium Nails and Titanium Rods in Plastic Surgery

Titanium is non-toxic and non-magnetic. The elastic modulus of Medical Titanium Bar is similar to that of human bones, and it has good compatibility with the human body, so it is also called "biological metal". Titanium is also an important member of the memory alloy family. Nitinol is the first alloy discovered by people to have memory. This alloy can "remember" its own head. It can "return to its old state" and restore its original shape. And because it contains titanium, it is also very strong. Therefore, this alloy has become the most widely used memory alloy, and until today, it is still one of the best performance open shape memory alloys. Using titanium sheets and titanium screws to treat fractures has unexpected effects. In just a few months, new bones and muscles will be combined with titanium sheets. Therefore, titanium is an ideal material for human dental implants and artificial joints.

Zygoma plastic surgery mainly includes two concepts: one is simple chiseling of the zygoma to reduce the outer contour of the zygoma; the other is three-dimensional osteotomy, which reduces the zygoma by shortening and moving the bone. Zygoma chipping is generally suitable for patients with anterior and lateral protruding faces. Intraoral incisions are often used to separate and expose the zygoma under the periosteum. Special instruments are used to chisel and thin the part of the zygoma designed to be removed before surgery, thereby reducing the size of the zygoma. Contours the face and improves the shape of the face. Titanium nails and titanium plates are used to fix the cheekbones so that the cheekbones will not slip, causing facial contours to lose shape, and can better achieve the effect of cheekbones shaping!

The biggest advantage of this type of surgery is that it leaves no scars after the operation, is seamless and leaves no traces. The difficulty of three-dimensional zygomatic osteotomy is greatly increased, and it is suitable for patients with zygomatic arch protrusion. In addition to the intraoral incision, an auxiliary incision is usually made at the hidden part of the hairline, or a coronal incision is made in the scalp alone. After the subperiosteal separation exposes the entire zygomatic bone, a specific size of bone is removed according to the computer three-dimensional simulation design. Then use special materials such as titanium nails to reconnect and reshape the separated bone fragments, so that the entire facial contour and shape can be changed to the greatest extent, and even the patient can achieve a "reborn" effect. In addition to zygomatic reduction surgery, for a small number of patients with local depression in the middle of the face caused by zygomatic dysplasia or defect caused by congenital or acquired diseases, or bilateral zygomatic asymmetry, autologous tissue transplantation or prosthetic surgery can be performed. Zygoma augmentation is performed by filling the zygoma with body material to improve the appearance.

Compared with traditional treatment methods such as small plate, steel wire internal fixation, single jaw ligation, and intermaxillary traction, internal fixation of titanium plate in maxillofacial fractures without leaving scars on the face has the advantages of simple operation, small damage, and effective treatment. For accurate and reliable anatomical fixation, an extraoral incision is required for condylar process and zygomatic arch fractures, and intraoral incisions are often used for other maxillary and maxillary fractures. It also avoids damage to the facial nerve. The titanium plate used for internal fixation is the Zhongbang brand titanium plate series jointly developed by Xi'an Zhongbang Company and the Dental Material Factory of the Fourth Military Medical University. It has good biocompatibility, high corrosion resistance, and is compatible with human bone tissue and soft tissue. It has good compatibility, and unless it is infected, it can be kept in the body for a long time under normal circumstances, without the need for secondary surgery to remove it, which reduces the number of hospitalizations and the economic burden of patients. The problem of intermaxillary traction in titanium plate internal fixation, it is believed that intraoperative intermaxillary traction can provide correct restoration of the fracture end and a good occlusal relationship, and can also prevent drilling, and the fracture segment will be displaced again when the titanium screw is inserted. Disturbance of the occlusal relationship is caused. Except for cases of maxillary and maxillary joint fractures that need to be assisted with intermaxillary traction and fixation for about 1 week after internal fixation, other fractures generally do not need traction and fixation after fixation, because the traction time is short and the patient’s temporal The function of the mandibular joint is less affected, it is easy to maintain oral hygiene, and it is possible to eat, which is beneficial to the patient's nutrition and wound healing, and at the same time greatly reduces the pain of the patient compared with the past. The selection of the position of the titanium plate fixation, it is considered that the selection of the appropriate position of the titanium splint is one of the conditions to ensure the success of the titanium plate internal fixation. Mandibular fractures other than condylar fractures were fixed according to the Champi ideal line, that is, the mandibular body fracture titanium plate was fixed on the inner flat bone surface of the external oblique line, that is, between the tooth root and the inferior alveolar canal, at the midline and beside the midline The fracture needs to be fixed with two parallel titanium plates. The best place to place micro-titanium plates in midface fractures should be the orbital rim, zygomatic alveolar ridge, edge of pyriform hole, and the screws should be placed on the thick bone of the vertical pillar. Medical Titanium Bar, biomedical titanium (basic material: medical titanium plate, medical titanium wire) is an important branch of medical material science, mainly used to treat or replace human tissues, organs or enhance their functions, with high technical content and high economy Valuable new carrier material. When new muscle fiber rings are wrapped around these "titanium bones", these titanium bones begin to maintain the normal activities of the human body. Titanium is widely distributed in the human body, and the content in the normal human body is no more than 15 mg per 70 kg body weight, and its role is not clear. However, it has been confirmed that titanium can stimulate phagocytes and enhance immunity. Titanium itself is a stable metal with high hardness and light weight that will not rust or deteriorate or cause metal allergies. Titanium has special current characteristics, which will have beneficial physiological effects on the human body and its chemical stability will not change or deteriorate over time. In the past 10 years, the market growth rate of biomedical materials and products has been maintained at about 30%. It is estimated that in the next 10-20 years, the medical device industry, including medical metal materials, will reach the scale of the pharmaceutical products market and will become the world's largest market in the 21st century. pillar industry of the economy.