Daniel Rikli1, Sabine Goldhahn2, Michael Blauth3, Samir Mehta4, Michael Cunningham5, Alexander Joeris2. 1. University Hospital Basel, Clinic for Orthopaedic and Trauma Surgery, Basel, Switzerland. Electronic address: daniel.rikli@usb.ch. 2. AO Foundation, AO Clinical Investigation and Documentation, Duebendorf, Switzerland. 3. University Hospital Innsbruck, Department of Trauma Surgery, Innsbruck, Austria. 4. Hospital of the University of Pennsylvania, Department Orthopaedic Surgery, Philadelphia, PA, United States. 5. AO Foundation, AO Education Institute, Duebendorf, Switzerland.
Abstract
INTRODUCTION: Formal training for surgeons regarding intraoperative imaging is lacking. This project investigated the effect of an educational intervention focusing on obtaining and assessing a standardized lateral view of the proximal femur during intramedullary nailing of a pertrochanteric fracture. MATERIALS AND METHODS: Anatomical landmarks of the proximal femur that can be identified using intraoperative fluoroscopy and criteria for image quality, i.e. quality of projection were defined in a consensus process, followed by the development of educational materials and a 7-item checklist. Five surgeons from 5 Trauma Centers in 4 countries participated. Each surgeon a) assessed 5 of their own retrospective cases and 5 retrospective cases from 4 colleagues from their clinic, b) viewed an educational video and poster and re-assessed the same cases, and c) assessed the intraoperative images of 5 prospectively collected consecutive cases of their own and of colleagues afterwards. RESULTS: The percentage of positive ratings for image quality increased from 72% prior to educational intervention to 88% after intervention (p<0.001), and number of "not assessable" images decreased significantly. Percentage agreement between surgeons on the assessments increased from 75% to 87%. The proportion of best possible ratings for fracture reduction and implant position increased from 58% to 72% and from 49% to 66%, respectively. Percentage agreement between surgeons on assessment of reduction and implant position increased. DISCUSSION AND CONCLUSIONS: A focused educational intervention can improve surgeons' ability to obtain and assess lateral view intraoperative images of the proximal femur and can improve the quality of reduction and implant positioning.
INTRODUCTION: Formal training for surgeons regarding intraoperative imaging is lacking. This project investigated the effect of an educational intervention focusing on obtaining and assessing a standardized lateral view of the proximal femur during intramedullary nailing of a pertrochanteric fracture. MATERIALS AND METHODS: Anatomical landmarks of the proximal femur that can be identified using intraoperative fluoroscopy and criteria for image quality, i.e. quality of projection were defined in a consensus process, followed by the development of educational materials and a 7-item checklist. Five surgeons from 5 Trauma Centers in 4 countries participated. Each surgeon a) assessed 5 of their own retrospective cases and 5 retrospective cases from 4 colleagues from their clinic, b) viewed an educational video and poster and re-assessed the same cases, and c) assessed the intraoperative images of 5 prospectively collected consecutive cases of their own and of colleagues afterwards. RESULTS: The percentage of positive ratings for image quality increased from 72% prior to educational intervention to 88% after intervention (p<0.001), and number of "not assessable" images decreased significantly. Percentage agreement between surgeons on the assessments increased from 75% to 87%. The proportion of best possible ratings for fracture reduction and implant position increased from 58% to 72% and from 49% to 66%, respectively. Percentage agreement between surgeons on assessment of reduction and implant position increased. DISCUSSION AND CONCLUSIONS: A focused educational intervention can improve surgeons' ability to obtain and assess lateral view intraoperative images of the proximal femur and can improve the quality of reduction and implant positioning.
Authors: Lisa Kausch; Sarina Thomas; Holger Kunze; Maxim Privalov; Sven Vetter; Jochen Franke; Andreas H Mahnken; Lena Maier-Hein; Klaus Maier-Hein Journal: Int J Comput Assist Radiol Surg Date: 2020-06-12 Impact factor: 2.924