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24th WCE 2006 - MP19-25 : A Structured Process to Achieving Optimal Port Placement for Robotic Transperitoneal Renal Surgery Show Comments PDF Print E-mail
  
Saturday, 19 August 2006

M.J. Fumo1, K.K. Badani , S. Kaul , A. Shrivastava , S. Dusik-Fenton , F. Ogunfitidimi , S. Murali , N. Ashani , K. Arumunga , R.H Littleton , J.O. Peabody , R.M. Sahabudin , A.K. Hemal ,M. Menon

1Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, Institute of Urology and Nephrology, 2Hospital Kuala Lumpur


Introduction: The DaVinci robotic system has the advantages of 3D imaging, magnification, and precise movements with many degrees freedom; however, it is hampered by size making optimal port placement essential to prevent loss of range of motion from robotic arms colliding with each other or the patient's body. We seek to clarify optimal port placement for transperitoneal renal surgery.

Method: Over a two-week period 35 robotic renal surgeries including total and partial nephrectomy, pyeloplasty, and pyelolithotomy were performed. Detailed written notes and photographs of initial and final port placement were made. Particular attention was paid to loss of range of motion, lack of reach, or arm clashing.

Result: Through trial and error the best patient position was the full flank position with minimal table flexion and with the patient moved to the edge of the table such that any abdominal fat would fall away from the working area. The port placement that resulted in no loss of range of motion consisted of a 12mm camera port placed laterally between the anterior axillary line and the midclavicular line 3-4 cm below the costal margin, and two 8mm robotic ports each placed 10-11 cm away from the camera port such that a right triangle is formed. All operations were completed without collision or loss of range of motion.

Conclusion: Robotic port placement for renal surgery can be optimized to eliminate loss of range of motion. Placing the camera port laterally and robotic ports antero-medially resulted in considerable flexibility of robotic movement.

Reader Comments
Robotic port placements
Written by This email address is being protected from spam bots, you need Javascript enabled to view it on 2006-08-23 07:11:48
I am a urologist in NJ and have done 200 robotic cases, about 40 for the kidney. I came to similar conclusions as this team did as regard to port placement after several cases. The ports for robotic renal surgery are different than for laparoscopic surgery. 
 
I found the camera you planned on using was also important. The 30 degree down camera works best in this position. If the angle of the patient is 60 degrees instead of 90 it would put the 0 degree camera in the same position relative to the patient. 
 
I place my ports more in a straight line, with the upper 8 just below the costal margin and use at least 8 cm of space, preferably 10. 
 
I also have been using the daVini S since March and with the S, collisions are not much of a problem and port placement is much more forgiving. I think when more urologists have access to the S, more of us will perform more renal surgery with robotics. 
 
Domenico Savatta, MD 
Chief of Minimally Invasive and Robotic Adult Urologic Surgery 
Newark, NJ

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