Zheng Rui, Hill Doug, Hedden Douglas, Moreau Marc, Le Lawrence H, Raso Jim, Lou Edmond
Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.
Glenrose Rehabilitation Hospital, Alberta Health Services, Edmonton, Alberta, Canada.
Ultrasound Med Biol. 2017 May;43(5):934-942. doi: 10.1016/j.ultrasmedbio.2017.01.017. Epub 2017 Mar 6.
The ultrasound imaging method was implemented to assess the spinal curve flexibility of scoliotic surgical candidates, or how much correction it can achieve while patients are bending or lying down. Fifteen participants were recruited. Pre-operative radiographs and ultrasound images in both standing and bending positions were acquired. The post-operative standing radiographs were obtained 1 wk after surgery. Two raters (RZ, EL) measured the ultrasound images twice, 1 wk apart. A curve correction index (C) was developed to estimate the curve flexibility. The C from the pre-operative bending radiograph, ultrasound and post-operative radiograph were 0.51 ± 0.18; R1: 0.74 ± 0.08 vs R2: 0.72 ± 0.09 and 0.60 ± 0.10, respectively. The correlation of C between ultrasound and post-operative radiography was slightly higher than the pre-operative bending and post-operative radiography. This pilot study demonstrated the bending ultrasound method is a promising supplemental tool to assess curve flexibility before surgical intervention for scoliotic surgical candidates.
采用超声成像方法评估脊柱侧弯手术候选者的脊柱曲线柔韧性，即患者在弯腰或躺下时能够实现的矫正程度。招募了15名参与者。采集了术前站立位和弯腰位的X线片及超声图像。术后1周获得术后站立位X线片。两名评估者（RZ、EL）对超声图像进行了两次测量，间隔1周。制定了一个曲线矫正指数（C）来估计曲线柔韧性。术前弯腰X线片、超声及术后X线片的C值分别为0.51±0.18；R1为0.74±0.08，R2为0.72±0.09和0.60±0.10。超声与术后X线摄影之间C值的相关性略高于术前弯腰与术后X线摄影之间的相关性。这项初步研究表明，对于脊柱侧弯手术候选者，弯腰超声方法是一种很有前景的补充工具，可用于在手术干预前评估曲线柔韧性。
