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Accuracy of navigated cam resection in femoroacetabular impingement: A randomised controlled trial
Author(s) -
Van Houcke Jan,
Khanduja Vikas,
Nakano Naoki,
Krekel Peter,
Pattyn Christophe,
Audenaert Emmanuel
Publication year - 2017
Publication title -
the international journal of medical robotics and computer assisted surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 53
eISSN - 1478-596X
pISSN - 1478-5951
DOI - 10.1002/rcs.1839
Subject(s) - femoroacetabular impingement , randomized controlled trial , resection , medicine , physical therapy , surgery
Background The main cause for revision hip arthroscopy surgery is incomplete bony resection of femoroacetabular impingement (FAI). This study aimed to compare the cam resection accuracy via the conventional hip arthroscopy technique with the navigation technique. Methods Two prospectively randomized groups were recruited: navigated ( n = 15) and conventional ( n = 14). A pre‐operative CT and post‐operative MRI scan were obtained in all cases to compare alpha angle, range of motion simulation and determine a pre‐operative 3D surgical resection plan. Results Post‐operatively, the mean maximal alpha angle improved significantly in the navigated group compared with the conventional group (55°vs.66°; P = 0.023), especially in the 12 o’ clock position (45°vs.60°; P = 0.041). However, positioning time and radiation exposure were significantly longer in the navigated group. Conclusion Navigated surgery is effective for patients with cam type FAI in helping restore normal anatomy, however, not without drawbacks. Larger studies will be required to validate our results.