Abstract：
BACKGROUND: The aim of the study was to validate a software-based planning method for the Schoettle Point and to evaluate precision and time efficiency of its live overlay on the intraoperative X-ray.
METHODS: A software-based method was compared with surgeons\' manual planning in an inter- and intrarater study. Subsequently, K-wire placement was performed with and without an overlay of the planning. The time used and the precision achieved were statistically compared.
RESULTS: The average deviation between the surgeons (1.68 mm; 2.26 mm) was greater than the discrepancy between the surgeons and the software-based planning (1.30 mm; 1.38 mm). In the intrarater comparison, software-based planning provided consistent results. Live overlay showed a significantly lower positioning error (0.9 ± 0.5 mm) compared with that without overlay (3.0 ± 1.4 mm, p = 0.000; 3.1 ± 1.4 mm, p = 0.001). Live overlay did not achieve a significant time gain (p = 0.393; p = 0.678).
CONCLUSIONS: The software-based planning and live overlay of the Schoettle Point improves surgical precision without negatively affecting time efficiency.
METHODS: A software-based method was compared with surgeons\' manual planning in an inter- and intrarater study. Subsequently, K-wire placement was performed with and without an overlay of the planning. The time used and the precision achieved were statistically compared.
RESULTS: The average deviation between the surgeons (1.68 mm; 2.26 mm) was greater than the discrepancy between the surgeons and the software-based planning (1.30 mm; 1.38 mm). In the intrarater comparison, software-based planning provided consistent results. Live overlay showed a significantly lower positioning error (0.9 ± 0.5 mm) compared with that without overlay (3.0 ± 1.4 mm, p = 0.000; 3.1 ± 1.4 mm, p = 0.001). Live overlay did not achieve a significant time gain (p = 0.393; p = 0.678).
CONCLUSIONS: The software-based planning and live overlay of the Schoettle Point improves surgical precision without negatively affecting time efficiency.
摘要：
背景：研究的目的是验证SchoettlePoint的基于软件的计划方法，并评估其在术中X射线上的实时叠加的精度和时间效率。
方法：在一项研究中，将基于软件的方法与外科医生的手动计划进行了比较。随后，在有和没有规划重叠的情况下进行K线放置。使用的时间和达到的精度进行了统计学比较。
结果：外科医生之间的平均偏差（1.68mm;2.26mm）大于外科医生与基于软件的计划之间的差异（1.30mm;1.38mm）。在内部比较中，基于软件的规划提供了一致的结果。实时叠加显示与没有叠加的定位误差（3.0±1.4mm）相比，明显更低的定位误差（0.9±0.5mm），p=0.000;3.1±1.4mm,p=0.001)。实时叠加没有实现显著的时间增益(p=0.393;p=0.678)。
结论：SchoettlePoint的基于软件的计划和实时叠加提高了手术精度，而不会对时间效率产生负面影响。
方法：在一项研究中，将基于软件的方法与外科医生的手动计划进行了比较。随后，在有和没有规划重叠的情况下进行K线放置。使用的时间和达到的精度进行了统计学比较。
结果：外科医生之间的平均偏差（1.68mm;2.26mm）大于外科医生与基于软件的计划之间的差异（1.30mm;1.38mm）。在内部比较中，基于软件的规划提供了一致的结果。实时叠加显示与没有叠加的定位误差（3.0±1.4mm）相比，明显更低的定位误差（0.9±0.5mm），p=0.000;3.1±1.4mm,p=0.001)。实时叠加没有实现显著的时间增益(p=0.393;p=0.678)。
结论：SchoettlePoint的基于软件的计划和实时叠加提高了手术精度，而不会对时间效率产生负面影响。
