In-vivo precision of a non-invasive ultrasound-based device to measure pelvic tilt for THA

3D free-hand ultrasound to register anatomical landmarks at the pelvis and localize the hip joint center in lean and obese individuals

“…This is in line with Peters et al 14 who reported a range of approximately 4 mm for their 3DFUS-based HJC reliability study. Studies originating from the field of computer assisted orthopedic surgery, where 3DFUS is used to identify pelvic tilt in various positions, also demonstrated that 3DFUS can be a reliable tool [24][25][26][27] . In example, Dardenne et al 24 have recently evaluated the intra-as well as inter-observer reliability of an ultrasound-based device to measure patient-specific pelvic tilt in different daily positions.…”

“…Recently, it was outlined by Kubicek et al 21 that in particular in the domain of computer assisted orthopedic surgery 3DFUS is being successfully used to identify anatomical landmarks, more particular to measure pelvic tilt or to track anatomical planes to inform surgeons. 3DFUS can reliably identify pelvic tilt during standing, sitting and in supine position 22,23 with an accuracy in the range of approximately 0 • -4 •24,25 and with good to excellent reliability 25,26 . Research also demonstrated that 3DFUS-based pelvic tilt tracking is less affected by higher amounts of soft tissue than traditional pointer-based imaging modalities 26,27 .…”

“…3DFUS can reliably identify pelvic tilt during standing, sitting and in supine position 22,23 with an accuracy in the range of approximately 0 • -4 •24,25 and with good to excellent reliability 25,26 . Research also demonstrated that 3DFUS-based pelvic tilt tracking is less affected by higher amounts of soft tissue than traditional pointer-based imaging modalities 26,27 . These results are encouraging and leverage the relevance to further investigate the potential of 3DFUS to support clinical and research practice in the 3D gait analysis community.…”