阿拉伯成年人尾骨基于计算机断层扫描的形态学和形态测量学特征
Computed tomography-based morphologic and morphometric features of the coccyx among Arab adults.
作者信息
Marwan Yousef Abbas, Al-Saeed Osama Mhawes, Esmaeel Ali Abdulla, Kombar Osama Rabie Ahmad, Bendary Abdulla Mohammad, Azeem Mokhtar Elsayed Abdul
机构信息
*Division of Orthopaedic Trauma, Department of Orthopaedic Surgery, Al-Razi Orthopaedic Hospital, Kuwait City, Kuwait †Department of Radiology, Al-Amiri Hospital, Kuwait City, Kuwait ‡Department of Radiology, Faculty of Medicine, Health Sciences Center, Kuwait University, Kuwait City, Kuwait §Division of Orthopaedic Surgery, Department of Surgery, Faculty of Medicine, Health Sciences Center, Kuwait University, Kuwait City, Kuwait; and ¶Department of Radiology, Mansoura University, Mansoura, Egypt.
出版信息
Spine (Phila Pa 1976). 2014 Sep 15;39(20):E1210-9. doi: 10.1097/BRS.0000000000000515.
STUDY DESIGN
Cross-sectional, retrospective.
OBJECTIVE
To identify morphological and morphometric features of the coccyx among adult Arabs.
SUMMARY OF BACKGROUND DATA
Different sacrococcygeal morphologic features were found to be associated with coccydynia.
METHODS
Review of 202 computed tomographic scans of adult Arab subjects was done (mean age: 47.98 ± 16.46 yr). Sacrococcygeal morphological features including number of coccygeal segments, type of coccyx, joint fusion, joint subluxation, coccygeal spicule, coccygeal sacralization, ventral angulation of the terminal sacral segment (S5), and lateral deviation of coccygeal tip were recorded. Moreover, morphometric measurements including lengths and angles of the sacrococcygeal region were measured. Analysis of data was carried out using P value of less than 0.05 as the cutoff level of significance.
RESULTS
Three coccygeal segments were present in 138 (68.3%) of individuals. The majority of the subjects had coccyx type I (96; 47.5%), II (70; 34.7%), or III (31; 15.3%); type I being more common among males (P = 0.004). Bony spicule was present in 109 (54.0%) individuals. Joint fusion, joint subluxation, coccygeal sacralization, ventral angulation of S5, and lateral deviation of coccygeal tip were present in 38.6%, 31.7%, 34.2%, 38.1%, and 38.6% of the subjects, respectively. Joint subluxation and ventral angulation of S5 were more significantly present among females (P = 0.015, P = 0.014, respectively). The mean straight and curved lengths of the coccyx were 3.3 ± 0.7 cm and 3.7 ± 0.8 cm, respectively. The sacrococcygeal structures were longer in males than in females. The mean sacrococcygeal joint angle was 149.2°± 28.1°. Based on the morphometric measurements, the coccyx was more ventrally angulated among females.
CONCLUSION
The coccygeal morphology and morphometry of Arab adults share some similarities and differences with individuals of other ethnic backgrounds. Future studies should investigate the relation between these anatomic features with coccydynia among this population.
LEVEL OF EVIDENCE
研究设计
横断面、回顾性研究。
目的
确定成年阿拉伯人尾骨的形态学和形态测量学特征。
背景数据总结
已发现不同的骶尾形态学特征与尾骨痛相关。
方法
对202例成年阿拉伯受试者的计算机断层扫描进行回顾性分析（平均年龄：47.98±16.46岁）。记录骶尾形态学特征，包括尾骨节段数量、尾骨类型、关节融合、关节半脱位、尾骨棘、尾骨骶化、终末骶节段（S5）腹侧成角以及尾骨尖侧方偏移。此外，测量包括骶尾区域长度和角度在内的形态测量指标。采用P值小于0.05作为显著性检验的临界水平进行数据分析。
结果
138例（68.3%）个体有3个尾骨节段。大多数受试者的尾骨为I型（96例；47.5%）、II型（70例；34.7%）或III型（31例；15.3%）；I型在男性中更常见（P = 0.004）。109例（54.0%）个体存在骨棘。关节融合、关节半脱位、尾骨骶化、S5腹侧成角以及尾骨尖侧方偏移分别见于38.6%、31.7%、34.2%、38.1%和38.6%的受试者。关节半脱位和S5腹侧成角在女性中更显著（分别为P = 0.015，P = 0.014）。尾骨的平均直线长度和曲线长度分别为3.3±0.7 cm和3.7±0.8 cm。男性的骶尾结构比女性长。骶尾关节平均角度为149.2°±28.1°。基于形态测量指标，女性的尾骨腹侧成角更大。
结论
成年阿拉伯人的尾骨形态学和形态测量学与其他种族背景的个体有一些异同。未来研究应调查该人群中这些解剖特征与尾骨痛之间的关系。
证据水平
3级。
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