Siribumrungwong Koopong, Kiriratnikom Theerasan, Tangtrakulwanich Boonsin
Department of Orthopedic Surgery and Physical Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkla 90110, Thailand.
Adv Orthop. 2013;2013:767343. doi: 10.1155/2013/767343. Epub 2013 Nov 26.
Background. One of the important complications of open-door laminoplasty is a premature laminoplasty closure. In order to prevent premature laminoplasty closure many techniques have been described and a titanium miniplate is one of the instruments to maintain cervical canal expansion. This study was performed to evaluate the effectiveness of titanium miniplates on the union rate for open-door laminoplasty. Materials and Methods. We performed open-door laminoplasty in 68 levels of fourteen patients using maxillofacial titanium miniplates. Axial computed tomography scans were obtained at 6 months postoperatively to evaluate the union rates of the hinge side. The Japanese Orthopedic Association (JOA) score was used to compare the clinical outcomes before and after surgery. Results. Computed tomography scan data was available on 68 levels in 14 patients. There were no premature closures of the hinge or miniplate dislodgements. The union rate on the hinge side was 70.5% (48/68). The mean JOA score increased significantly from 7.0 before surgery to 10.2, 12.2, and 13.0 after surgery at 1, 3, and 6 months, respectively. Conclusion. Open-door laminoplasty using maxillofacial titanium miniplates can provide union rates comparable to other techniques. It can maintain canal expansion without failures, dislodgements, and premature closures.
背景。开门式椎板成形术的重要并发症之一是椎板成形术过早闭合。为了防止椎板成形术过早闭合，人们描述了许多技术，钛微型钢板是维持颈椎管扩张的器械之一。本研究旨在评估钛微型钢板对开门式椎板成形术融合率的有效性。材料与方法。我们使用颌面钛微型钢板对14例患者的68个节段进行了开门式椎板成形术。术后6个月进行轴向计算机断层扫描，以评估铰链侧的融合率。采用日本骨科学会（JOA）评分比较手术前后的临床结果。结果。14例患者的68个节段均获得了计算机断层扫描数据。铰链处无过早闭合或微型钢板移位。铰链侧的融合率为70.5%（48/68）。JOA评分术前平均为7.0，术后1、3和6个月分别显著提高到10.2、12.2和13.0。结论。使用颌面钛微型钢板的开门式椎板成形术可提供与其他技术相当的融合率。它可以维持椎管扩张，而不会出现失败、移位和过早闭合。
