The Use of Time-of-Flight Camera for Navigating Robots in Computer-Aided Surgery: Monitoring the Soft Tissue Envelope of Minimally Invasive Hip Approach in a Cadaver Study. (December 2014)

• Record Type: Journal Article
• Authors: Putzer, David; Klug, Sebastian; Moctezuma, Jose Luis; Nogler, Michael
• Is Part Of: Surgical innovation. Volume 21:Number 6(2014:Dec.)
• Page Start: 630
• Page End: 636
• Publication Date: 2014-12
• Subjects: soft tissue motion tracking -- robotic navigation -- minimally invasive hip arthroplasty -- soft tissue envelope -- computer-aided surgery; Surgery, Operative -- Periodicals; Endoscopic surgery -- Periodicals; Laparoscopic surgery -- Periodicals; Surgical Procedures, Operative -- Periodicals; Surgical Procedures, Minimally Invasive -- Periodicals; Diffusion of Innovation -- Periodicals; Chirurgie opératoire -- Périodiques; Chirurgie endoscopique -- Périodiques; Chirurgie laparoscopique -- Périodiques; 617.91
• DOI: 10.1177/1553350614525669
• Languages: English
• ISSNs: 1553-3506

Abstract

Background . Time-of-flight (TOF) cameras can guide surgical robots or provide soft tissue information for augmented reality in the medical field. In this study, a method to automatically track the soft tissue envelope of a minimally invasive hip approach in a cadaver study is described. Methods . An algorithm for the TOF camera was developed and 30 measurements on 8 surgical situs (direct anterior approach) were carried out. The results were compared to a manual measurement of the soft tissue envelope. Results . The TOF camera showed an overall recognition rate of the soft tissue envelope of 75%. On comparing the results from the algorithm with the manual measurements, a significant difference was found (P > .005). Conclusions . In this preliminary study, we have presented a method for automatically recognizing the soft tissue envelope of the surgical field in a real-time application. Further improvements could result in a robotic navigation device for minimally invasive hip surgery.