统计形状模型作为复杂面中部骨折治疗中的质量保证措施：一项病例对照研究。

The statistical shape model as a quality assurance measure in the treatment of complex midface fractures: a case control study.

作者信息

Fuessinger Marc Anton, Schwarz Steffen, Gass Mathieu, Poxleitner Philipp, Brandenburg Leonard, Schlager Stefan, Metzger Marc Christian

机构信息

Department of Oral and Maxillofacial Surgery, Albert-Ludwigs University Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany.

Department of Physical Anthropology, Albert-Ludwigs University Freiburg, Hebelstr. 29, 79104, Freiburg, Germany.

出版信息

Head Face Med. 2021 Oct 20;17(1):44. doi: 10.1186/s13005-021-00296-w.

DOI:10.1186/s13005-021-00296-w

PMID:34670566

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8527631/

Abstract

BACKGROUND

Complex bilateral midface fractures necessitate a surgically challenging procedure to preserve or restore the occlusion and the sensitive eye area. In this case control study, we aim to show the potential of a statistical shape model (SSM) for measuring the quality of the midface reconstruction, compared to the estimated preoperative situation.

METHODS

An individualized SSM was postoperatively registered on 19 reconstructed complex bilateral midface fractures. Using this SSM, the distances from the simulated preoperative situation to the postoperative positions of the fracture segments were calculated. The fracture lines for Le Fort II, Le Fort III, and NOE fractures were chosen as reference points for the distance measurements.

RESULTS

The SSM could be registered on all 19 complex bilateral midface fractures. All analyzed fractures showed a dorsal impaction (negative values) of the midface. Le Fort II fractures showed deviation values of -0.98 ± 4.6 mm, Le Fort III fractures showed values of -3.68 ± 3.6 mm, NOE type 2 fractures showed values of -0.25 ± 4.6 mm, and NOE type 1 fractures showed values of -0.25 ± 4.6 mm.

CONCLUSIONS

The SSM can be used to measure the quality of the achieved reduction of complex bilateral midface fractures based on the estimated preoperative situation.

TRIAL REGISTRATION

DRKS00009719.

摘要

背景

复杂的双侧中面部骨折需要进行具有手术挑战性的操作，以保留或恢复咬合关系以及敏感的眼周区域。在这项病例对照研究中，我们旨在展示与术前估计情况相比，统计形状模型（SSM）在测量中面部重建质量方面的潜力。

方法

在19例重建的复杂双侧中面部骨折术后注册了个体化的SSM。使用该SSM，计算从模拟术前情况到骨折段术后位置的距离。选择Le Fort II、Le Fort III和鼻眶筛（NOE）骨折的骨折线作为距离测量的参考点。

结果

SSM可在所有19例复杂双侧中面部骨折上注册。所有分析的骨折均显示中面部有背侧嵌顿（负值）。Le Fort II骨折的偏差值为-0.98±4.6毫米，Le Fort III骨折的偏差值为-3.68±3.6毫米，NOE 2型骨折的偏差值为-0.25±4.6毫米，NOE 1型骨折的偏差值为-0.25±4.6毫米。