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Robot assisted navigated drilling for percutaneous pedicle screw placement: A preliminary animal study
Wang HW(王洪伟); Zhou Y(周跃); Liu, Jun; Han JD(韩建达); Xiang LB(项良碧)
Indexed BySCI
WOS IDWOS:000357592900014
Contribution Rank2
Funding OrganizationKey Projects in Advanced Clinical Technology in Military Hospital [2010gxjs072] ; National Science and Technology Ministry [2012BAI14B02] ; Fundation of State Key Laboratory of Robotics [2014-012]
KeywordComputer Assisted Orthopedic Surgery Pedicle Screw Robot Spine Lumbar Spine
AbstractBackground: There is much more radiation exposure to the surgeons during minimally invasive pedicle screws placement. In order to ease the surgeon's hand-eye coordination and to reduce the iatrogenic radiation injury to the surgeons, a robot assisted percutaneous pedicle screw placement is useful. This study assesses the feasibility and clinical value of robot assisted navigated drilling for pedicle screw placement and the results thus achieved formed the basis for the development of a new robot for pedicle screw fixation surgery. Materials and Methods: Preoperative computed tomography (CT) of eight bovine lumbar spines (L1-L5) in axial plane were captured for each vertebra, the entry points and trajectories of the screws were preoperatively planned. On the basis of preoperative CT scans and intraoperative fluoroscopy, we aligned the robot drill to the desired entry point and trajectory, as dictated by the surgeon's preoperative plan. Eight bovine lumbar spines were inserted 80 K-wires using the spine robot system. The time for system registration and pedicle drilling, fluoroscopy times were measured and recorded. Postoperative CT scans were used to assess the position of the K-wires. Results: Assisted by spine robot system, the average time for system registration was (343.4 +/- 18.4) s, the average time for procedure of drilling one pedicle screw trajectory was (89.5 +/- 6.1) s, times of fluoroscopy for drilling one pedicle screw were (2.9 +/- 0.8) times. Overall, 12 (15.0%) of the 80 K-wires violated the pedicle wall. Four screws (5.0%) were medial to the pedicle and 8 (10.5%) were lateral. The number of K-wires wholly within the pedicle were 68 (85%). Conclusions: The preliminary study supports the view that computer assisted pedicle screw fixation using spinal robot is feasible and the robot can decrease the intraoperative fluoroscopy time during the minimally invasive pedicle screw fixation surgery. As spine robotic surgery is still in its infancy, further research in this field is worthwhile especially the accuracy of spine robot system should be improved.
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS SubjectOrthopedics
WOS Research AreaOrthopedics
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Document Type期刊论文
Corresponding AuthorXiang LB(项良碧)
Affiliation1.Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Shenyang, Liaoning
2.Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Chongqing
3.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China.
Recommended Citation
GB/T 7714
Wang HW,Zhou Y,Liu, Jun,et al. Robot assisted navigated drilling for percutaneous pedicle screw placement: A preliminary animal study[J]. INDIAN JOURNAL OF ORTHOPAEDICS,2015,49(4):452-457.
APA Wang HW,Zhou Y,Liu, Jun,Han JD,&Xiang LB.(2015).Robot assisted navigated drilling for percutaneous pedicle screw placement: A preliminary animal study.INDIAN JOURNAL OF ORTHOPAEDICS,49(4),452-457.
MLA Wang HW,et al."Robot assisted navigated drilling for percutaneous pedicle screw placement: A preliminary animal study".INDIAN JOURNAL OF ORTHOPAEDICS 49.4(2015):452-457.
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