目的  建立10~19岁正常青少年髋骨三维模型，分析不同性别、侧别、年龄段之间髋骨髂后上棘的形态及位置参数，为髋骨解剖学形态研究提供补充，为临床相关疾病诊断和治疗操作及定位提供参考。 方法  选择40名既往无脊柱骨盆疾病的10~19岁青少年患者，收集骨盆CT影像数据导入 Mimics 21.0 软件建立模型。髂后上棘与周围解剖标志的相对位置及参数包括髂后上棘至髂前上棘的长度（ab），髂后上棘尖端至坐骨结节的长度（ac），髂后上棘尖端至耻骨结节的长度（ae），髂后上棘尖端至耳状关节面后缘中点的长度（af），髂后上棘尖端至髂嵴转折部的长度（ag），坐骨结节至髂嵴最高点的距离（cd）。髂后上棘的局部参数包括a点的宽度（W0）和厚度（H0）。髂嵴后部的最大宽度（WMAX），其与a点的距离（D0），分别距离a点0.5、1、1.5cm测量髂嵴的宽度，依次记为 W1、W2、W3。髂嵴转折部（g点）的宽度（W4）。依次比较不同性别、侧别、年龄段的髂后上棘与周围解剖标志的相对位置及参数和髂后上棘的局部参数。 结果  髂后上棘与周围解剖标志位置参数中，ac、ae、af性别间比较差异有统计学意义（P <0.05），ab、ag、cd性别间比较差异无统计学意义（P >0.05）；ab、ac、ae、af、ag、cd侧别间比较差异无统计学意义（P >0.05）；ab、ac、ae、af、ag、cd不同年龄段之间比较差异有统计学意义（P <0.05）。髂后上棘局部参数中，W0、W1、W2、WMAX 、H0性别间差异有统计学意义（P <0.05），W3、W4、D0性别间比较差异无统计学意义（P >0.05）；W0、W1、W2、W3、W4、WMAX、D0、H0侧别间比较差异无统计学意义（P >0.05）；W0、W1、W2、W3、W4、WMAX、D0、H0不同年龄段间比较差异无统计学意义（P >0.05）。 结论  青少年女性骨盆参数总体大于男性，女性髂后上棘尖端更宽更厚，男性则相反；随着年龄增长，骨盆参数呈增大趋势，髂后上棘的宽、厚及头端到髂嵴的宽度基本不变。 

Objective  To establish a normal three-dimensional model of the hip bone in adolescents aged 10-19 years old, analyze the morphology and positional parameters of the posterior superior iliac spine of the hip bone among different genders, sides, and ages, which can supplement the study of the anatomical morphology of the hip bone and to provide a reference for the diagnosis of the clinically relevant diseases and for the therapeutic manipulation and localization of the hip bone.  Methods  Forty adolescent patients aged 10-19 years without previous spinal pelvic diseases were selected, and the pelvic CT image data were collected and imported into Mimics 21.0 software to establish the model. The relative position parameters of the posterior superior iliac spine and the surrounding anatomical landmarks included the length from the posterior superior iliac spine to the anterior superior iliac spine (ab), the length from the tip of the posterior superior iliac spine to the sciatica (ac), the length from the tip of the posterior superior iliac spine to the pubic tubercle (ae), the length from the tip of the posterior superior iliac spine to the midpoint of the posterior margin of the auricular joint surfaces (af), the length from the tip of the posterior superior iliac spine to the iliac spine turn (ag), and the length from the sciatica tubercle to the highest point of the iliac spine (cd). The local parameters of the posterior superior iliac spine included the width (W0) and the thickness (H0) at point A. The maximum width of the posterior iliac spine (WMAX), its distance from point a (D0), and the width of the iliac spine were measured at 0.5, 1, and 1.5 cm from point a, and were recorded sequentially as W1, W2, and W3. The width of the iliac spine at the turn of the iliac spine (point g) was measured (W4). The relative positions and parameters of the posterior superior iliac spine to the surrounding anatomical landmarks and the localized parameters of the posterior superior iliac spine were compared sequentially for different genders, sides, and age groups.  Results  In the measurement result  of the parameters of the posterior superior iliac spine and the surrounding anatomical landmarks, the differences in the comparisons between different genders of the ac, ae, and af indexes were statistically significant (P<0.05), and the differences in the comparisons between different genders of the ab, ag, and cd indexes were not statistically significant (P >0.05). The differences in the comparisons between the right and left sides of the ab, ac, ae, af, ag, and cd indexes were not statistically significant (P>0.05). The difference in comparison between different age groups of ab, ac, ae, af, ag, and cd indicators was statistically significant (P<0.05). In the measurement result  of the local parameters of the posterior superior iliac spine, the difference in the comparison between the sexes of the W0, W1, W2, WMAX, and H0 indexes was statistically significant (P<0.05), and the difference in the comparison between the sexes of the W3, W4, and D0 indexes was not statistically significant (P>0.05); And the difference in the comparison between the left and right sides of the W0, W1, W2, and the right and left sides of the W3, W4, WMAX, D0, and H0 indexes was not statistically significant (P>0.05); The difference between W0, W1, W2,W3, W4, WMAX, D0, H0 indicators compared between different age groups was not statistically significant (P>0.05). Conclusion  Adolescent females have overall greater pelvic parameters than males, with wider and thicker tips of the posterior superior iliac spine in females and narrower and thinner tips of the posterior superior iliac spine in males; Pelvic parameters show a tendency to increase with age, while the width and thickness of the posterior superior iliac spine, as well as the width of the cephalic end to the iliac spine remain essentially unchanged.