髂后上棘

其穿出点的位置主要在髂后上棘与坐骨结节连线的中1/3（50.00%）或上、中1/3交界处（48.33%）。

The inferior gluteal nerve penetrated from the pelvis mainly in the middle 1 / 3 ( 50 . 00 % ) of the line from the posterior superior iliac spine to the ischial tuberosity or at the junction of its superior-middle 1 / 3 ( 48.33 % ) .

方法选择30例血清阴性脊柱关节病病人，于其体表标志髂后上棘处固定一直径为10mm圆形金属标记物，行骶骼关节CT扫描并观察。

Methods Thirty patients with spinal osteoarthritis were selected . A metal label with a diameter of 10 mm was fixed on the posterior superior iliac spine according to the landmark of body surface of each patient , then CT scanning was made and observed .

以髂后上棘至同侧的骶角连线（PS线）为基线，测量各神经出梨状肌上、下缘处至PS线的垂直距离。

The vertical distance from the sacral nerve emerged above and below the piriformis muscle to the PS line connecting the posterior superior iliac spine and the sacral horn line was measured .

植骨材料来源于自体髂后上棘。术后予以支具保护3个月。

Material of bone transplantation was derived from auto-posterior superior iliac spine and remained for 3 months after operation .

分别测量两侧投影的宽度、高度、投影纵轴到髂后上棘、髂后下棘的距离。

The widths and height of the projection , and the distances from the axis of the projection to posterior superior iliac spine and posterior inferior iliac spine were measured bilaterally .

髂后上下棘连线距矩形后侧边和前侧边的距离分别为3.47cm和5.66cm。

The average distances from the line which connected the posterior superior iliac spine and posterior inferior iliac spine to the posterior and anterior lateral lines were 3.47 cm and 5.66 cm , respectively .

腰背部包括腰骶中线区、骶髂关节区域、髂部后上棘、髂骨嵴以上范围和骶尾部。

The midline lumbosacral area , the sacroiliac joint region , the posterosuperior iliac spine , the high iliac crest area , and the low midline sacrococcygeal region are all included in the back .

臀中皮神经主要由L5~S3的后外侧支组成，经过骶髂长韧带深面的纤维管道，管道内上口至髂后上棘的距离平均为32.4±6.2mm；

The medial cluneal nerves , consisting of lateral branches from L_5 to S_3 , pathed through a fiber canal under posterior sacro-iliac ligaments into musculus gluteus maximus .