Rizzatti-Barbosa Célia M, Ribeiro Margarete C, Silva-Concilio Lais R, Di Hipolito Oswaldo, Ambrosano Gláucia M
Department of Prosthesis and Periodontology, Dental College of Piracicaba, Unicamp, Piracicaba, Brazil.
Gerodontology. 2005 Jun;22(2):112-5. doi: 10.1111/j.1741-2358.2005.00046.x.
Elongation and calcification of the stylohyoid ligament complex may be correlated with Eagle's syndrome. The styloid complex pathogenesis is still being debated.
The aim of this study was to investigate the prevalence of stylohyoid ligament complex elongation in panoramic radiographs of 2252 patients in a Brazilian adult, partially edentulous population, of both sexes.
The radiographs, taken in the Semiology Department at the Dental School in Brazil, were randomly selected from January 1997 to December 2000. The stylohyoid ligament complexes were measured from the cranial base up to the osseous tip of each process. Mineralisation of the complex of more than 25 mm in length on the radiograph was considered to be abnormal. The same operator made all the measurements. The lengths of the areas of mineralisation were recorded, and whether the condition was bilateral was noted.
This abnormality was present in both sexes. A calcified complex was found in 451 of the 2252 patients. The majority of these calcified complexes (n = 248; 54.9%) were bilateral. Three hundred and fifty-six (39.5%) of them were longer than 25 mm (and so were abnormal), and the length varied from 26.1 to 65 mm. (average length = 27.8 mm). Forty (4.4%) of the abnormalities were longer than 50 mm, and of these 36 (90%) were in the 40-59 year age group. The mean length of a mineralised stylohyoid ligament complex in patients in the 60-79 year age group was 32.75 mm.
The results suggested that an anatomical variant of the stylohyoid ligament complex was more frequently found in the elderly female population, although this abnormality was present in both sexes. There was a greater tendency for the abnormality to be present in patients between 60 and 79 years of age.
茎突舌骨韧带复合体的延长和钙化可能与鹰综合征相关。茎突复合体的发病机制仍存在争议。
本研究旨在调查巴西2252名成年部分无牙的男女患者全景片中茎突舌骨韧带复合体延长的患病率。
从1997年1月至2000年12月在巴西牙科学院符号学系拍摄的X光片中随机选取。从颅底到每个突起的骨性尖端测量茎突舌骨韧带复合体。X光片上长度超过25mm的复合体矿化被认为是异常的。所有测量均由同一名操作人员进行。记录矿化区域的长度，以及该情况是否为双侧性。
这种异常在男女中均有出现。在2252名患者中，有451例发现钙化复合体。这些钙化复合体中的大多数（n = 248；54.9%）是双侧的。其中356例（39.5%）长度超过25mm（因此为异常），长度从26.1mm到65mm不等（平均长度 = 27.8mm）。40例（4.4%）异常长度超过50mm，其中36例（90%）在40 - 59岁年龄组。60 - 79岁年龄组患者中矿化茎突舌骨韧带复合体的平均长度为32.75mm。
结果表明，茎突舌骨韧带复合体的解剖变异在老年女性人群中更常见，尽管这种异常在男女中均有出现。60至79岁的患者出现这种异常的倾向更大。
