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Robot‐assisted fracture reduction using three‐dimensional intraoperative fracture visualization: An experimental study on human cadaver femora
Author(s) -
Oszwald Markus,
Westphal Ralf,
Bredow Jan,
Calafi Afshin,
Hufner Tobias,
Wahl Friedrich,
Krettek Christian,
Gosling Thomas
Publication year - 2010
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.21118
Subject(s) - reduction (mathematics) , fluoroscopy , cadaver , medicine , orthopedic surgery , internal fixation , fracture reduction , computer assisted surgery , orthodontics , surgery , valgus , femur , mathematics , geometry
Closed fracture reduction can be a challenging task. Robot‐assisted reduction of the femur is a newly developed technique that could minimize potential complications and pitfalls associated with fracture reduction and fixation. We conducted an experimental study using 11 human cadaver femora with intact soft tissues. We compared robot‐assisted fracture reduction using 3D visualization with manual reduction, using 2D fluoroscopy. The main outcome measure was the accuracy of reduction. The manual reductions were done by an experienced orthopedic trauma surgeon, whereas the robot‐assisted reductions were done by surgeons of different experience. The robot‐assisted group showed significantly less postreduction malalignment ( p < 0.05) for internal/external rotation (2.9° vs. 8.4°) and for varus/valgus alignment (1.1° vs. 2.5°). However, the reduction time was significantly ( p < 0.01) longer (6:14 min vs. 2:16 min). The higher precision associated with robot‐assisted fracture reduction makes this technique attractive and further research and development worthwhile. In particular, less experienced surgeons may benefit from this new technique. © 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 28:1240–1244, 2010