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Use of robotic technology in cam femoroacetabular impingement corrective surgery
Author(s) -
Masjedi Milad,
Tan Wei Liang,
Jaskaranjit Sunnar,
Aqil Adeel,
Harris Simon,
Cobb Justin
Publication year - 2013
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.1486
Subject(s) - femoroacetabular impingement , medicine , resection , robotic surgery , surgery , deformity , osteoarthritis , reduction (mathematics) , geometry , alternative medicine , mathematics , pathology
Background Cam type femoroacetabular impingement (FAI) is an anatomical disorder that can lead to osteoarthritis (OA) of the hip joint. With existing surgical options there is invariably a tendency for under‐resection or over‐resection of the cam lesion, both having dire consequences. This study assessed the application of robotic technology in the surgical management of cam FAI. Methods Three different dry‐bone femur models (14 in each) with severe cam deformity underwent corrective surgery using a haptic robot with active constraints. The ‘post surgery’, models were CT scanned and 3‐D alpha angles and head/neck ratios (HNRs) were compared with pre‐operative plans. Results In all models, the robotic resection resulted in a measured reduction of the maximum alpha angle to an angle indicative of no clinical impingement (first model 91° vs 49° ± 3°, second 91° vs 55° ± 5°, and third 87° vs 47° ± 2° P < 0.001). Similarly, the HNRs for all models reduced substantially following resection surgery. Conclusions This dry bone study validates the use of robotic technology to perform cam FAI corrective surgery. A more accurate bony resection may minimize complications due to over‐ and under‐resection. Copyright © 2013 John Wiley & Sons, Ltd.