Sweta Sweta, Raj Nikhil, Malik Manisha, Kumar Ashish, Kumar Mukesh, Ahamed Irfan K A, Rangari Priyadarshini
Department of Dentistry, Sri Krishna Medical College and Hospital, Uma Nagar, Muzaffarpur, Bihar, India.
Department of Conservative and Endodontics, Private Practitioner, Patna, Bihar, India.
J Pharm Bioallied Sci. 2022 Jul;14(Suppl 1):S131-S134. doi: 10.4103/jpbs.jpbs_534_21. Epub 2022 Jul 13.
In maxillofacial trauma, the most commonly encountered are mandibular fractures requiring treatment. Managing these fractures with rigid fixation abolish the intermaxillary fixation (IMF) requirement with reduction and early return to function.
The present trial was carried out to assess clinically the effectiveness of new locking bone plate screw system postsurgically in mandibular fracture cases without IMF.
In 18 subjects, the fracture site was exposed, fracture segments were reduced and approximated keeping the occlusal relationship is desirable using locking 2 mm mini plates and screws without IMF. The subjects were followed every week for initial 4 weeks followed by evaluation for up to 6 months every month to assess clinical and radiographic healing and the results were formulated.
Road traffic accident was the cause in 10 subjects (55.5%), followed by assault in 22.2% ( = 4) subjects, and fall from height in 16.6% ( = 3) subjects. Parasymphysis was involved in 44.4% ( = 8), followed by symphysis in 11.1% ( = 2) subjects. A minor complication of wound dehiscence was seen in 5.5% ( = 1) subjects that were managed conservatively and a major complication of infection was also seen in 1 subject that required removal of the plate at 4 weeks of follow-up. Following plate removal, IMF was done for that subject. All other sites were healed uneventfully. Primary healing in bone was seen in 94.4% ( = 17) subjects and it was not seen in the case with infection.
Within the limitations, the present study concluded that the locking miniplate system is highly effective and reliable in treating mandibular fractures with acceptable results and a very low postoperative complications rate.
在颌面部创伤中，最常见的是需要治疗的下颌骨骨折。采用坚固内固定治疗这些骨折可避免颌间固定（IMF），实现骨折复位并早期恢复功能。
本试验旨在临床评估新型锁定接骨板螺钉系统在无颌间固定的下颌骨骨折病例术后的有效性。
对18名受试者，暴露骨折部位，复位骨折段并使其接近，在不进行颌间固定的情况下使用2毫米锁定微型接骨板和螺钉保持理想的咬合关系。最初4周每周对受试者进行随访，之后每月评估直至6个月，以评估临床和影像学愈合情况并得出结果。
10名受试者（55.5%）的病因是道路交通事故，其次是袭击，占22.2%（n = 4），高处坠落占16.6%（n = 3）。下颌骨颏孔区骨折的有44.4%（n = 8），其次是正中联合骨折，占11.1%（n = 2）。5.5%（n = 1）的受试者出现伤口裂开的轻微并发症，经保守处理；1名受试者在随访4周时出现感染的严重并发症，需要取出接骨板。取出接骨板后，该受试者进行了颌间固定。所有其他部位均顺利愈合。94.4%（n = 17）的受试者骨实现一期愈合，感染病例未出现一期愈合。
在本研究的局限性范围内，得出结论：锁定微型接骨板系统在治疗下颌骨骨折方面高效可靠，结果可接受，术后并发症发生率极低。
