Semiromi Hasan Toghraei, Chehrassan Mohammadreza, Bahardoust Mansour, Ghandhari Hasan, Esmaeli Abbas, Nikouei Farshad
Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Bone and Joint Reconstruction Research Center, Shafa Yahyaeian Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.
BMC Surg. 2025 May 6;25(1):197. doi: 10.1186/s12893-025-02921-w.
Achieving the global spinal alignment, especially the pelvis, in spine surgeries is considered the most important factor in the success of these surgeries, which requires an accurate evaluation of the correction angles measured during surgery. This study aimed to evaluate the accuracy of the mobile C-arm X-ray machine (C-ARM) for measuring lumbar lordosis (LL) and pelvic incidence (PI) parameters during lumbar fixation.
In this prospective study, 59 lumbar fixation candidates who underwent surgery between 2020 and 2022 at our medical center, were examined. PI and LL parameters were measured at the fusion site with fluoroscopy, during surgery with C-ARM, and after surgery with EOS locally.
The mean age was 54.69 ± 17.62 years. 42 (71.2%) were female. The mean PI based on intraoperative C-ARM and post-surgery EOS findings were 54.57 ± 11.19 and 54.83 ± 11.17, respectively, which this difference was not statistically significant (P = 0.9). The mean LL estimate based on C-ARM and EOS findings was similar (P: 0.44).A significant positive linear correlation was observed for the mean PI (r: 0.97, p: 0.001) and LL (r: 0.99, p: 0.001).
The mean PI and LL angle during operation (measured with C-ARM) was similar to the mean of these parameters in EOS imaging findings after surgery. C-ARM can be used as a convenient device in the operating room with high precision to measure PI and LL values in spine surgeries.
在脊柱手术中实现整体脊柱对线，尤其是骨盆对线，被认为是这些手术成功的最重要因素，这需要准确评估手术过程中测量的矫正角度。本研究旨在评估移动C形臂X光机（C形臂）在腰椎固定手术中测量腰椎前凸（LL）和骨盆入射角（PI）参数的准确性。
在这项前瞻性研究中，对2020年至2022年期间在我们医疗中心接受手术的59名腰椎固定手术候选患者进行了检查。在融合部位通过透视测量PI和LL参数，在手术中使用C形臂测量，术后在当地使用EOS测量。
平均年龄为54.69±17.62岁。42名（71.2%）为女性。基于术中C形臂和术后EOS检查结果的平均PI分别为54.57±11.19和54.83±11.17，差异无统计学意义（P = 0.9）。基于C形臂和EOS检查结果的平均LL估计值相似（P：0.44）。平均PI（r：0.97，p：0.001）和LL（r：0.99，p：0.001）之间存在显著的正线性相关性。
手术过程中（用C形臂测量）的平均PI和LL角度与术后EOS成像检查结果中这些参数的平均值相似。C形臂可作为手术室中一种方便的设备，以高精度测量脊柱手术中的PI和LL值。
