Mandibular condylar remodeling characteristics after simultaneous condylectomy and orthognathic surgery.
Mandibular condylar remodeling characteristics after simultaneous condylectomy and orthognathic surgery.
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DOI：
10.1016/j.ajodo.2020.06.040
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发表时间：
2021-11
期刊：
影响因子：
--
通讯作者：
Cevidanes L
中科院分区：
文献类型：
--
作者：
Gallagher AL;Ruellas ACO;Benavides E;Soki FN;Aronovich S;Magraw CBL;Turvey T;Cevidanes L
本研究的目的是使用放射照相解释评估术后髁突重塑，量化髁突体积不对称性，并评估同时进行单侧高位髁突切除术和双颌截骨术后的软组织对称性。 16 名诊断为单侧髁突增生的患者接受了单侧高位髁突切除术和正颌手术，以纠正骨骼和面部不对称。在手术前和手术后一年进行锥形束计算机断层扫描。对修复性或退行性变化的迹象进行放射学共识评估。对髁突进行镜像和记录，以评估体积和形态不对称性。通过测量软组织距骨骼正中矢状面的距离来评估软组织对称性。接受单侧高位髁切除术和正颌手术的患者出现影像学征象，提示退行性改变，包括手术和非手术髁的硬化、骨赘、扁平和糜烂（P≤0.01）。术后 1 年平均体积改善为 531.9 ± 662.3 mm3 (P = 0.006)。所有患者的软组织对称性均得到改善，平均改善 65.8%（4.0 mm ± 2.6 mm，P ≤ 0.01）。髁突体积不对称性的变化与软组织矫正的稳定性之间没有相关性。高位髁切除术用于矫正髁突增生患者的骨骼不对称，成功地减少了髁突之间的体积不对称。在手术和非手术髁中均发现手术后畸形重塑和退行性变化。尽管发生了显着的变化并且仍然存在关节不对称，但软组织矫正在术后一年内保持稳定。 （Am J Orthod Dentofacial Orthop 2021；B:B-B）
The objectives of this study were to evaluate postsurgical condylar remodeling using a radiographical interpretation, quantify condylar volumetric asymmetry, and assess soft tissue symmetry after simultaneous unilateral high condylectomy and bimaxillary osteotomies. Sixteen patients diagnosed with unilateral condylar hyperplasia underwent unilateral high condylectomy and orthognathic surgery to correct skeletal and facial asymmetries. Cone-beam computed tomography scans were acquired before and 1-year after surgery. A radiographic consensus was evaluated for signs of reparative or degenerative changes. The condyles were mirrored and registered for assessment of volumetric and morphologic asymmetry. Soft tissue symmetry was evaluated by measurement of the distance of soft tissue pogonion from the skeletal midsagittal plane. Patients who undergo unilateral high condylectomy and orthognathic surgery present radiographic signs suggestive of degenerative changes, including sclerosis, osteophytes, flattening, and erosion in both the surgical and nonsurgical condyles (P ≤ 0.01). There was an average volumetric improvement of 531.9 ± 662.3 mm3 1-year postsurgery (P = 0.006). Soft tissue symmetry improved in all patients, with an average improvement of 65.8% (4.0 mm ± 2.6 mm, P ≤ 0.01). There was no correlation between the change in condylar volumetric asymmetry and the stability of the soft tissue correction. High condylectomy for the correction of a skeletal asymmetry in patients with condylar hyperplasia successfully reduces the volumetric asymmetry between the condyles. Postsurgical dysmorphic remodeling and degenerative changes were noted in both the surgical and nonsurgical condyles. Despite remarkable changes and remaining joint asymmetry, the soft tissue correction is stable 1-year postsurgery. (Am J Orthod Dentofacial Orthop 2021;B:B-B)
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DOI：
10.1016/j.ajodo.2015.09.026
发表时间：
2016-04
期刊：
American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics
影响因子：
--
作者：
Ruellas AC;Huanca Ghislanzoni LT;Gomes MR;Danesi C;Lione R;Nguyen T;McNamara JA Jr;Cozza P;Franchi L;Cevidanes LH
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DOI：
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影响因子：
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