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Novel 3D hexapod computer‐assisted orthopaedic surgery system for closed diaphyseal fracture reduction
Author(s) -
Tang Peifu,
Hu Lei,
Du Hailong,
Gong Minli,
Zhang Lihai
Publication year - 2012
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.417
Subject(s) - hexapod , reduction (mathematics) , fracture reduction , bone healing , fixation (population genetics) , computer science , surgery , medicine , materials science , biomedical engineering , internal fixation , mathematics , artificial intelligence , population , environmental health , geometry , robot
Background Long‐bone fractures are very common in trauma centers. The conventional Arbeitsgemeindschaft fur Osteosynthesefragen (AO) technique contributes to most fracture healing problems, and external fixation technology also has several disadvantages, so new techniques are being explored. Method A novel hexapod computer‐assisted fracture reduction system based on a 3D‐CT image reconstruction process is presented for closed reduction of long‐bone diaphyseal fractures. A new reduction technique and upgraded reduction device are described and the whole system has been validated. Results Ten bovine femoral fracture models were used with random fracture patterns. Tests results were as follows: residual deviation 1.24 + 0.65 mm for the axial deflection, 1.19 + 0.37 mm for the translation, 2.34 + 1.79° for the angulation, and 2.83 + 0.9° for the rotation. Conclusion The reduction mechanism has the advantages of high positioning, reduction and computer accuracy, and intra‐operative stability for both patients and surgical team. With further investigation, it could be applied in many kinds of long‐bone diaphyseal fractures. Copyright © 2011 John Wiley & Sons, Ltd.