Öztürk Cansu, Şencan Zeynep, İnce Rümeysa, Çalişir Ebru Sena, Cihan Ömer Faruk, Beger Orhan
Department of Anatomy, Faculty of Medicine, Gaziantep Islam Science and Technology University.
Department of Anatomy, Faculty of Medicine, Gaziantep University, Gaziantep.
J Craniofac Surg. 2024 Oct 3. doi: 10.1097/SCS.0000000000010752.
To determine the precise position of the posterior clinoid process (PCP) in fetuses.
Skull bases of 32 fetuses (11 males/21 females) aged 17 to 32 weeks in utero were included in the study. The distances of PCP to certain reference points were measured.
The distances of PCP to the foramen ovale, foramen rotundum, superior orbital fissure, anterior clinoid process, foramen magnum, and crista galli were measured as 7.70±1.86 mm, 6.99±1.65 mm, 6.07±1.85 mm, 3.85±1.10 mm, 15.34±3.38 mm, and 14.49±2.65 mm, respectively. All parameters were similar for both sides (P>0.05). Apart from the distance of PCP to the foramen magnum, the remaining parameters were similar for both genders. This parameter was greater in males than females (P=0.001). All parameters were greater in the third-trimester fetuses than the second-trimester fetuses. All parameters increased with advancing gestational weeks (P<0.001). Linear functions were calculated for the distances of PCP to the crista galli (y = 1.311 + 0.551 × age), to the foramen magnum (y = 0.086 + 0.638 × age), to the anterior clinoid process (y = -0.303 + 0.174 × age), to the superior orbital fissure (y = - 2.013 + 0.338 × age), to the foramen rotundum (y = 1.803 + 0.217 × age), and to the foramen ovale (y = 0.760 + 0.290 × age).
The measured distances increased with growth. The linear functions displaying the growth dynamics of PCP-related parameters may be used to estimate the distances.
确定胎儿后床突（PCP）的精确位置。
本研究纳入了32例宫内孕17至32周的胎儿（11例男性/21例女性）的颅底。测量了PCP到某些参考点的距离。
PCP到卵圆孔、圆孔、眶上裂、前床突、枕大孔和鸡冠的距离分别为7.70±1.86毫米、6.99±1.65毫米、6.07±1.85毫米、3.85±1.10毫米、15.34±3.38毫米和14.49±2.65毫米。两侧的所有参数均相似（P>0.05）。除PCP到枕大孔的距离外，其余参数在两性中均相似。该参数男性大于女性（P=0.001）。所有参数在孕晚期胎儿中均大于孕中期胎儿。所有参数均随孕周增加而增加（P<0.001）。计算了PCP到鸡冠（y = 1.311 + 0.551×年龄）、枕大孔（y = 0.086 + 0.638×年龄）、前床突（y = -0.303 + 0.174×年龄）、眶上裂（y = - 2.013 + 0.338×年龄）、圆孔（y = 1.803 + 0.217×年龄）和卵圆孔（y = 0.760 + 0.290×年龄）的距离的线性函数。
测量的距离随生长而增加。显示PCP相关参数生长动态的线性函数可用于估计距离。
