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3D Virtual Surgical Planning (VSP) workflow for the Ganz osteotomy

Glastra, F.E.H. (2024) 3D Virtual Surgical Planning (VSP) workflow for the Ganz osteotomy.

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Embargo date:9 December 2034
Abstract:Analysing and quantifying hip dysplasia is essential for understanding the pelvis's 3D morphology. To do this, 3D measurements on a 3D model can be made. Measurements were done using a 3D analysis methodology that determines the pelvic coordinate system, measures the femoral head coverage and acetabular angles and creates speedometers to get a visual impression of the measured values. Validation confirmed the method's reliability, with ICC values above 0.9 and acetabular angle value differences comparable to measurements performed on plain radiographs. However, differences between the measured acetabular angle values in 3D and 2D were significant and inconsistent. After ensuring the reliability of 3D measurements, they can be used to assist in creating a virtual surgical plan (VSP). A 3D VSP workflow was developed to facilitate the planning process of the Ganz osteotomy. To ease the process of acetabulum reorientation and re-evaluating 3D measurements, a VSP planning tool has been created. Creating a VSP provided valuable insights and revealed that other rotations were made than initially anticipated based on 2D imaging. The surgeon's feedback confirmed creating the VSP added value in understanding the patient’s 3D anatomy and making decisions, and that creating the VSP gives more confidence in using 3D technology.
Item Type:Essay (Master)
Faculty:TNW: Science and Technology
Subject:44 medicine
Programme:Technical Medicine MSc (60033)
Link to this item:https://purl.utwente.nl/essays/104748
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