Kim, Youngjun Lee, Byung Hoon Mekuria, Kinde Cho, Hyunchtil Park, Sehyung Wang, Joon Ho Lee, Deukhee 2024-01-20T02:02:24Z 2024-01-20T02:02:24Z 2021-09-01 2017-03 0968-0160 https://pubs.kist.re.kr/handle/201004/122997 Background: Recently, surgical navigation systems have been widely used to improve the results of various orthopaedic surgeries. However, surgical navigation has not been successful in anterior cruciate ligament reconstruction, owing to its inaccuracy and inconvenience. This study investigated the registration of preoperative and intraoperative data, which are the key components in improving accuracy of the navigation system. Methods: An accurate registration method was proposed using new optical tracking markers and landmark retake. A surgical planning and navigation system for anterior cruciate ligament reconstruction was developed and implemented. The accuracy of the proposed system has been evaluated using phantoms and eight cadaveric knees. The present study investigated only the registration accuracy excluding the errors of optical tracking hardware and surgeon. Results: The target registration errors of femoral tunnelling for anterior cruciate ligament reconstruction in phantoms were found to be 0.24 +/- 0.03 mm and 0.19 +/- 0.10 degrees for the tunnel entry position and tunnel direction, respectively. The target registration errors measured using cadavers were 0.9 mm and 1.94 degrees, respectively. Conclusions: The preclinical experimental results showed that the proposed methods enhanced the registration accuracy of the developed system. As the system becomes more accurate, surgeons could more precisely position and orient the femoral and tibial tunnels to their original anatomical locations. (C) 2017 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV ACL RECONSTRUCTION Registration accuracy enhancement of a surgical navigation system for anterior cruciate ligament reconstruction: A phantom and cadaveric study Article 10.1016/j.knee.2016.12.007 1 KNEE, v.24, no.2, pp.329 - 339 KNEE 24 2 329 339 scie scopus 000398873800022 2-s2.0-85012883662 Orthopedics Sport Sciences Surgery Orthopedics Sport Sciences Surgery Article ACL RECONSTRUCTION Registration accuracy Anterior cruciate ligament reconstruction Surgical navigation