Munro I R
Humana Craniofacial Institute, Humana Hospital, Dallas, Texas.
Clin Plast Surg. 1989 Jan;16(1):41-8.
The use of miniplates and screws in elective osteotomies or acute trauma of the craniofacial skeleton has revolutionized this field. In jaw surgery, rigid fixation has eliminated the need for intermaxillary fixation in most cases. Bone grafts and bone segments are more easily kept in place by screws or plates, rather than the balancing act that had to be done with wire fixation. This has decreased morbidity and the risks of postoperative airway obstruction. Thus, more complex procedures can be done and younger children treated. Most craniofacial surgeons now using plates and screws are finding less postoperative swelling after elective surgery. The reason for this is not immediately obvious, although supposition is possible. The disadvantages of the use of plates and screws are, first, that the surgery must be more precise than when wire fixation is used especially jaw surgery. Second, all the systems are more expensive than wires. However, in a well-organized insurance system, the cost is offset by decreased use of intensive care units, decreased hospital stay, greater safety and less morbidity for the patient, and probably fewer complications from slippage of bone segments or infection.
在颅面骨骼的择期截骨术或急性创伤中使用微型钢板和螺钉彻底改变了这一领域。在颌骨手术中,坚固内固定在大多数情况下已无需颌间固定。通过螺钉或钢板,骨移植片和骨段比使用钢丝固定时更容易固定到位,而钢丝固定需要权衡平衡。这降低了发病率以及术后气道阻塞的风险。因此,可以开展更复杂的手术并治疗年龄更小的儿童。现在大多数使用钢板和螺钉的颅面外科医生发现择期手术后的肿胀减轻。其原因并非立竿见影,不过可以进行推测。使用钢板和螺钉的缺点,其一,手术必须比使用钢丝固定时更精确,尤其是颌骨手术。其二,所有系统都比钢丝更昂贵。然而,在一个组织完善的保险体系中,使用重症监护病房减少、住院时间缩短、患者安全性提高、发病率降低以及骨段移位或感染导致的并发症可能减少,这些抵消了成本。