Department of Orthopedics and Traumatology, Gaziosmanpasa University Hospital, Tokat, Turkey.
Departments of Orthopedics and Traumatology and Anatomy, University of Giresun, School of Medicine, Giresun, Turkey.
Clin Orthop Surg. 2022 Sep;14(3):417-425. doi: 10.4055/cios22090. Epub 2022 Jul 21.
The present study aimed to evaluate the effect of fossae lumbales laterales and pelvic incidence (PI) on transsacral corridors.
Patients who underwent pelvic computed tomography (CT) during routine therapy in a single center between 2015 and 2020 were retrospectively reviewed. The patients' age and sex were documented during CT examination. Measurements were performed for both the upper and second sacral segments. Height and weight of the patients were determined using appropriate tools and body mass index (BMI) was calculated. Transsacral corridors were identified in true coronal and true sagittal planes and their width was determined as the maximum gap measured so that no screws could come out of the transacral corridors. PI was measured.
Our study included 244 (57%) male and 184 (43%) female patients, who had a mean age of 49.3 ± 14.15 years (range, 18-89 years) and a mean BMI of 26.57 ± 2.38 kg/m. No statistically significant correlation was found between the detection of the dimple sign in physical examination and the presence of an adequate corridor. The PI was statistically significantly higher in the patients with dimples ( < 0.001). PI of the female patients was higher than that of the male patients ( = 0.026). The correlation between PI and the existence of adequate corridors for S1 and S2 screws was not statistically significant ( = 0.858 and = 0.129, respectively). On the relationship between the presence of adequate S1 and S2 corridors where transsacral screws could be sent, an inverse relationship was detected: if the S1 transsacral corridor was adequate, the S2 corridor was inadequate or vice versa.
We could not obtain meaningful results on the use of the dimples of Venus or PI instead of CT to evaluate the adequacy of transverse corridors. Nevertheless, we confirmed that an increased PI was associated with the presence of dimples of Venus.
本研究旨在评估腰骶侧窝和骨盆入射角（PI）对经骶骨通道的影响。
回顾性分析 2015 年至 2020 年期间在一家中心进行常规治疗的患者的骨盆计算机断层扫描（CT）资料。在 CT 检查期间记录患者的年龄和性别。对上下两个骶骨节段进行测量。使用适当的工具确定患者的身高和体重，并计算体重指数（BMI）。在真实冠状面和真实矢状面识别经骶骨通道，并确定其宽度为测量的最大间隙，以确保没有螺钉从经骶骨通道中穿出。测量 PI。
本研究共纳入 244 例（57%）男性和 184 例（43%）女性患者，平均年龄为 49.3±14.15 岁（范围 18-89 岁），平均 BMI 为 26.57±2.38kg/m。体格检查中发现酒窝征与存在足够通道之间无统计学显著相关性。有酒窝的患者 PI 统计学显著升高（<0.001）。女性患者的 PI 高于男性患者（=0.026）。PI 与 S1 和 S2 螺钉存在足够通道之间的相关性无统计学意义（=0.858 和=0.129）。在存在足够的 S1 和 S2 通道的关系中，螺钉可以发送，发现存在反向关系：如果 S1 经骶骨通道足够，S2 通道则不足或反之亦然。
我们无法从使用维纳斯酒窝或 PI 代替 CT 来评估横向通道的充分性方面获得有意义的结果。尽管如此，我们还是证实了 PI 的增加与维纳斯酒窝的存在有关。
