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Effect of pelvic tilt and rotation on cup orientation in standing anteroposterior radiographs.

骨盆倾斜和旋转对站立前后位x线片中杯方向的影响。

  • 影响因子:1.28
  • DOI:10.1177/1120700019831665
  • 作者列表:"Yun HH","Murphy WS","Ward DM","Zheng G","Hayden B","Murphy SB
  • 发表时间:2020-01-01
Abstract

BACKGROUND:Individual pelvic tilt and rotation have wide variability that can affect the measurement of cup orientation in anteroposterior (AP) radiographs. The purpose of this study was to analyse the effect of pelvic tilt and rotation on radiographic measurements of cup orientation. METHODS:A total of 53 patients (63 hips) were included in this study. The patients underwent a computed tomography study with standing AP pelvis radiographs taken both preoperatively and approximately 3 months postoperatively. We used 2-dimensional/3-dimensional matching to measure the pelvic tilt and rotation, and the non-standardised and standardised cup orientation. RESULTS:There was no difference in the pelvic tilt and rotation between the preoperative and postoperative radiographs. The distribution of the differences between the non-standardised and standardised cup anteversion exhibited a change within 5° in only 34/63 (54%) hips. The pelvic tilt correlated with the difference between the non-standardised and standardised cup anteversion, but the pelvic rotation did not. When all 63 hips were separated into the right and left sides, the pelvic rotation inversely correlated with the pelvic tilt-adjusted difference between the non-standardised and standardised cup anteversion of the right side but directly correlated with that of the left side. CONCLUSIONS:The current study demonstrated that the measurement of cup anteversion in standing AP radiographs is significantly affected by both the pelvic tilt and pelvic rotation. An improved understanding of the pelvic orientation may eventually allow for desired cup positioning on a patient-specific basis to potentially reduce complications associated with the malposition of the cup.

摘要

背景: 个体骨盆倾斜和旋转具有广泛的可变性,这可能影响前后位 (AP) 射线照片中杯方位的测量。本研究的目的是分析骨盆倾斜和旋转对杯取向的射线测量的影响。 方法: 本研究共纳入53例患者 (63髋)。患者接受了计算机断层扫描研究,术前和术后大约3个月都拍摄了站立位AP骨盆x光片。我们使用2维/3维匹配来测量骨盆倾斜和旋转,以及非标准化和标准化的杯子方向。 结果: 术前和术后x线片在骨盆倾斜和旋转方面无差异。非标准化和标准化杯前倾之间的差异分布仅在34/63 (54%) 髋中表现出5 ° 内的变化。骨盆倾斜与非标准化和标准化杯前倾之间的差异相关,但骨盆旋转不相关。当所有63髋被分成右侧和左侧时,骨盆旋转与右侧非标准化和标准化杯前倾之间的骨盆倾斜调整差异呈负相关,但与左侧直接相关。 结论: 目前的研究表明,站立AP x线片中杯前倾的测量受到骨盆倾斜和骨盆旋转的显著影响。对骨盆取向的改进的理解最终可以允许在患者特定的基础上期望的杯定位,以潜在地减少与杯的错位相关的并发症。

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影响因子:2.98
发表时间:2020-01-01
DOI:10.1136/neurintsurg-2019-014962
作者列表:["Guo W","Liu H","Tan Z","Zhang X","Gao J","Zhang L","Guo H","Bai H","Cui W","Liu X","Wu X","Luo J","Qu Y"]

METHODS:BACKGROUND:The main surgical techniques for spontaneous basal ganglia hemorrhage include stereotactic aspiration, endoscopic aspiration, and craniotomy. However, credible evidence is still needed to validate the effect of these techniques. OBJECTIVE:To explore the long-term outcomes of the three surgical techniques in the treatment of spontaneous basal ganglia hemorrhage. METHODS:Five hundred and sixteen patients with spontaneous basal ganglia hemorrhage who received stereotactic aspiration, endoscopic aspiration, or craniotomy were reviewed retrospectively. Six-month mortality and the modified Rankin Scale score were the primary and secondary outcomes, respectively. A multivariate logistic regression model was used to assess the effects of different surgical techniques on patient outcomes. RESULTS:For the entire cohort, the 6-month mortality in the endoscopic aspiration group was significantly lower than that in the stereotactic aspiration group (odds ratio (OR) 4.280, 95% CI 2.186 to 8.380); the 6-month mortality in the endoscopic aspiration group was lower than that in the craniotomy group, but the difference was not significant (OR=1.930, 95% CI 0.835 to 4.465). A further subgroup analysis was stratified by hematoma volume. The mortality in the endoscopic aspiration group was significantly lower than in the stereotactic aspiration group in the medium (≥40-<80 mL) (OR=2.438, 95% CI 1.101 to 5.402) and large hematoma subgroup (≥80 mL) (OR=66.532, 95% CI 6.345 to 697.675). Compared with the endoscopic aspiration group, a trend towards increased mortality was observed in the large hematoma subgroup of the craniotomy group (OR=8.721, 95% CI 0.933 to 81.551). CONCLUSION:Endoscopic aspiration can decrease the 6-month mortality of spontaneous basal ganglia hemorrhage, especially in patients with a hematoma volume ≥40 mL.

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