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PROSTATE SURGERY

The da Vinci Single Port robot –
faster recovery than before

Laparoscopic (keyhole) prostate cancer surgery has transformed the operation of radical prostatectomy from the traditional ‘open’ variation that was associated with a 20% complication rate, a 30% risk of blood transfusion and a prolonged recovery into an operation that is more precise, safer and quicker to recover from, thanks to the fewer incisions required in the patient’s abdomen.

This improvement was achieved initially by laparoscopic surgery in the 1990s, in which the surgeon holds the instruments in his hands, and latterly by robot-assisted surgery in the 2010s, which has led to even better cancer control and post-operative bladder and sexual function. In fact, the complex Retzius-sparing technique pioneered in the UK by Santis is only possible thanks to the dexterity of the da Vinci robot, which has become the gold standard for robotic prostatectomy.

The next step in this evolution is the da Vinci Single Port (SP) platform, which allows robotic surgery to be done through a single small incision (or ‘port’) below the belly button, compared to the standard 6-port technique for robotic and 5-port method for laparoscopic radical prostatectomy.

The Cleveland Clinic

The first SP robotic units were delivered to selected high-volume hospitals in the US in 2018 and in December 2018 I visited the hospital where the world’s largest number of cases using the SP system have been done: The Cleveland Clinic. I had a chance to discuss the advantages and disadvantages of the SP system and to watch cases being done with it by Director of Robotic Urology, Dr. Jihad Kaouk. Intuitive Surgical, which manufactures the da Vinci robot, subsequently delivered SP systems to a number of other US hospitals but the planned application to the necessary European authorities was delayed by the Covid pandemic in 2020.

The SP system works with some of the same modules as the da Vinci Xi robot, as used by Santis at London Bridge Hospital and only differs from the Xi system in having a different patient cart (the part of the robot that stands over the patient). The other 2 main modules – the console, where the surgeon sits to do the surgery and the tower, which houses the computer which drives the robot – remain unchanged.

The main advantage

The main advantage of the SP robotic system is that it further reduces post-operative patient discomfort and so accelerates recovery due to fewer incisions made in the abdomen. In fact, only one incision is now required as just one single port (hence the name) – or column – is inserted into the patient’s abdomen. It works by having 4 arms that separate from the central 2.5 cm wide column when deployed, each of which is flexible and has two articulating joints. One arm carries the the telescopic camera from which the image is transmitted to the surgeon at the console, and the other three arms are for surgical instruments which can be changed. As well as each arm being capable of a large range of movement, the whole column on which they are mounted can rotate, offering an unparalleled range of camera and instrument movement. You can view the da Vinci SP system in more detail, including with a video, by clicking the button below.

The da Vinci Single Port system

The robotic SP platform in use during a perineal prostatectomy

What does the SP platform mean for Retzius-sparing robotic prostatectomy?

As previously mentioned, the ground-breaking Retzius-sparing technique is only made possible through the use of a robot. It is my opinion that for robotic prostatectomy:

Our recent data in over 400 cases has shown that not only does Retzius-sparing robotic prostatectomy allow most (90%) men to undergo radical prostatectomy with no incontinence but there also seems to be a trend to significantly better potency (erections), without any detriment to cancer control, which is a significant improvement over the traditional robotic technique.

The da Vinci SP platform was granted European certification in December 2023 and we hope to be the first European Centre to use the SP robotic platform, to the benefit of our patients, in April 2024.

Urinary continence outcome for Retzius-sparing prostatectomy

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