TY - JOUR
T1 - Evaluation of in-house, haptic assisted surgical planning for virtual reduction of complex mandibular fractures
AU - Nilsson, Johanna
AU - Nysjö, Fredrik
AU - Nyström, Ingela
AU - Kämpe, Johan
AU - Thor, Andreas
PY - 2021/6
Y1 - 2021/6
N2 - PURPOSE: The management of complex mandible fractures, i.e. severely comminuted or fractures of edentulous/atrophic mandibles, can be challenging. This is due to the three-dimensional loss of bone, which limits the possibility for accurate anatomic reduction. Virtual surgery planning (VSP) can provide improved accuracy and shorter operating times, but is often not employed for trauma cases because of time constraints and complex user interfaces limited to two-dimensional interaction with three-dimensional data.METHODS: In this study, we evaluate the accuracy, precision, and time efficiency of the haptic assisted surgery planning system (HASP), an in-house VSP system that supports stereo graphics, six degrees-of-freedom input, and haptics to improve the surgical planning. Three operators performed planning in HASP on computed tomography (CT) and cone beam computed tomography (CBCT) images of a plastic skull model and on twelve retrospective cases with complex mandible fractures.RESULTS: The results show an accuracy and reproducibility of less than 2 mm when using HASP for virtual fracture reduction, with an average planning time of 15 min including time for segmentation in the software BoneSplit.CONCLUSION: This study presents an in-house haptic assisted planning tool for cranio-maxillofacial surgery with high usability that can be used for preoperative planning and evaluation of complex mandible fractures.
AB - PURPOSE: The management of complex mandible fractures, i.e. severely comminuted or fractures of edentulous/atrophic mandibles, can be challenging. This is due to the three-dimensional loss of bone, which limits the possibility for accurate anatomic reduction. Virtual surgery planning (VSP) can provide improved accuracy and shorter operating times, but is often not employed for trauma cases because of time constraints and complex user interfaces limited to two-dimensional interaction with three-dimensional data.METHODS: In this study, we evaluate the accuracy, precision, and time efficiency of the haptic assisted surgery planning system (HASP), an in-house VSP system that supports stereo graphics, six degrees-of-freedom input, and haptics to improve the surgical planning. Three operators performed planning in HASP on computed tomography (CT) and cone beam computed tomography (CBCT) images of a plastic skull model and on twelve retrospective cases with complex mandible fractures.RESULTS: The results show an accuracy and reproducibility of less than 2 mm when using HASP for virtual fracture reduction, with an average planning time of 15 min including time for segmentation in the software BoneSplit.CONCLUSION: This study presents an in-house haptic assisted planning tool for cranio-maxillofacial surgery with high usability that can be used for preoperative planning and evaluation of complex mandible fractures.
KW - Cone-Beam Computed Tomography/methods
KW - Fracture Fixation/methods
KW - Humans
KW - Imaging, Three-Dimensional/methods
KW - Mandible/diagnostic imaging
KW - Mandibular Fractures/diagnosis
KW - Reconstructive Surgical Procedures/methods
KW - Reproducibility of Results
KW - Retrospective Studies
KW - Surgery, Computer-Assisted/methods
KW - Cranio-maxillofacial surgery
KW - Virtual surgery planning
KW - Haptics
UR - http://www.scopus.com/inward/record.url?scp=85105417987&partnerID=8YFLogxK
U2 - 10.1007/s11548-021-02353-w
DO - 10.1007/s11548-021-02353-w
M3 - Journal article
C2 - 33905085
SN - 1861-6410
VL - 16
SP - 1059
EP - 1068
JO - International journal of computer assisted radiology and surgery
JF - International journal of computer assisted radiology and surgery
IS - 6
ER -