Kelly R, Cereceda-Monteoliva N, Frezzini C, Walker T W M, Cobb A R M, Ayliffe P
Oral & Maxillofacial Surgery, Great Western Hospital, Swindon.
Oral & Maxillofacial Surgery, Bristol Royal Infirmary, University Hospitals Bristol, NHS Foundation Trust, Bristol.
Br J Oral Maxillofac Surg. 2020 Jun;58(5):542-545. doi: 10.1016/j.bjoms.2020.02.006. Epub 2020 Mar 31.
The aims of this study were to find out whether scoring in a rose-trellis pattern improved the stretch of mucoperiosteal flaps more than conventional scoring in the horizontal plane, and to consider its application in the closure of oroantral communications. Sixteen sections of cadaveric porcine buccal mucoperiosteum were removed from the molar region of the maxilla and mandible. A three-sided flap was raised in the subperiosteal plane, excised, and pinned to a cork board with the periosteal side facing upwards. Eight samples were scored in the horizontal plane (control) using lines perpendicular to the line of simulated advancement, and eight in a rose-trellis or criss-cross pattern. Scoring using a rose-trellis pattern yielded a mean increase in stretch of 24.3% (p=0.0003) when compared with the conventional method. Buccal advancement flaps are widely used to close oroantral communications, and scoring of the mucoperiosteum facilitates the stretching of the tissue over the defect. To be successful, defects should be fully closed to prevent contamination, and closure should be tension-free. In this study, scoring in a rose-trellis pattern increased the stretch of the tissue sample more than scoring in the horizontal plane. The rose-trellis technique therefore could aid the effective closure of oroantral communications.
本研究的目的是确定玫瑰网格状划痕是否比传统的水平方向划痕更能改善粘骨膜瓣的伸展性，并探讨其在口腔上颌窦交通口关闭中的应用。从猪上颌骨和下颌骨的磨牙区取下16片尸体颊部粘骨膜。在骨膜下平面掀起一个三边瓣，切除后将骨膜面朝上固定在软木板上。8个样本采用与模拟推进线垂直的线条在水平方向划痕（对照组），另外8个样本采用玫瑰网格状或交叉状划痕。与传统方法相比，采用玫瑰网格状划痕时伸展性平均增加了24.3%（p=0.0003）。颊部推进瓣广泛用于关闭口腔上颌窦交通口，粘骨膜的划痕有助于组织在缺损处的伸展。要成功关闭，缺损应完全封闭以防止污染，且关闭应无张力。在本研究中，玫瑰网格状划痕比水平方向划痕更能增加组织样本的伸展性。因此，玫瑰网格状技术有助于有效关闭口腔上颌窦交通口。
