When radical prostatectomy is recommended for prostate cancer, you may be offered either robotic-assisted surgery or open surgery. Both procedures have the same fundamental goal: removing the prostate gland, along with the seminal vesicles and, in some cases, nearby lymph nodes.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
The main difference is how the surgeon reaches the prostate. Open radical prostatectomy is performed through a larger incision, while robotic-assisted radical prostatectomy is performed through several small incisions using specialized instruments controlled by the surgeon.
If you are exploring surgical treatment options, you can also learn more about prostate cancer surgery, including when surgery may be recommended and what recovery can involve.
Robotic vs Open Radical Prostatectomy: The Basic Difference
Both operations are forms of radical prostatectomy. The prostate is removed to treat prostate cancer that is considered suitable for surgical treatment. With open radical prostatectomy, the surgeon makes a larger incision, usually in the lower abdomen, to access the prostate directly.
With robotic-assisted radical prostatectomy, the surgeon makes several small abdominal incisions. A camera and specialized surgical instruments are inserted through these openings, and the surgeon controls the instruments from a console. So, the difference is primarily the surgical approach and access, rather than the purpose of the operation.
How Are the Two Procedures Performed?
Open Radical Prostatectomy
The surgeon accesses the prostate through a larger incision. The prostate and seminal vesicles are removed, and nearby lymph nodes may also be removed when indicated. The larger incision provides direct access to the surgical area but also means that more abdominal tissue is affected during the operation.
Robotic-Assisted Radical Prostatectomy
Robotic surgery uses a small camera and specialized instruments inserted through several small incisions. The surgeon sits at a console and controls the instruments throughout the procedure.
The camera provides a magnified, three-dimensional view of the surgical field, while the instruments allow precise movements in the confined space around the prostate. Importantly, the robotic system does not independently perform the operation. The surgeon controls the surgical instruments and makes the clinical decisions throughout the procedure.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
Is Robotic Surgery Better Than Open Surgery?
There is no simple answer that makes one approach universally better. Robotic-assisted surgery can offer some short-term advantages, particularly less blood loss, less postoperative pain and a shorter hospital stay in many patients.
However, the long-term cancer-control and functional outcomes depend on several factors, including the patient's cancer characteristics, surgical technique and the experience of the treating team. For some men, the advantages of robotic surgery may be particularly relevant. For others, open surgery may remain an appropriate option.
Key Differences at a Glance
| Feature | Robotic Radical Prostatectomy | Open Radical Prostatectomy |
|---|---|---|
| Surgical access | Several small incisions | One larger incision |
| Visualization | Magnified, three-dimensional camera view | Direct surgical view |
| Instrument control | Surgeon-controlled robotic instruments | Surgeon uses conventional surgical instruments |
| Blood loss | Often lower | Often higher |
| Postoperative pain | Often less | Often greater because of the larger incision |
| Hospital stay | Often shorter | May be longer |
| External incision | Several small incisions | Larger abdominal incision |
| Early recovery | Often faster | Generally slower |
| Long-term cancer control | Can provide effective cancer treatment when appropriately performed | Can provide effective cancer treatment when appropriately performed |
What About Blood Loss and Blood Transfusions?
One of the more consistent short-term differences between the two approaches is blood loss. Robotic-assisted prostatectomy is generally associated with less blood loss because the procedure is performed through small incisions and uses precise instrument control.
As a result, the need for blood transfusion is generally lower than with open surgery. However, blood loss varies between patients and procedures, and a transfusion can still occasionally be required with robotic surgery.
Which Approach Has a Faster Recovery?
Robotic surgery often allows patients to recover from the physical effects of the operation more quickly because the incisions are smaller. Patients may experience less pain and may leave the hospital sooner. They can also return gradually to normal daily activities as healing progresses.
Open surgery generally involves a longer incision, which can result in more discomfort and a longer period of recovery. Recovery is not determined by the surgical approach alone. Age, overall health, complications, physical activity, the extent of surgery and individual healing can all influence how quickly you return to normal activities.
What About Urinary Control and Erectile Function?
Urinary continence and erectile function are two of the major concerns after radical prostatectomy, regardless of the surgical approach.
Urinary continence
Urinary leakage is common during the early recovery period after prostate removal. Control usually improves progressively as the urinary sphincter and surrounding tissues recover. Some studies have reported advantages in early urinary recovery with robotic surgery, but differences may become smaller over time. Outcomes also depend heavily on individual anatomy, surgical technique and the experience of the surgeon.
Erectile function
Both robotic and open prostatectomy can affect erectile function because the nerves involved in erections run close to the prostate. When cancer location allows it, nerve-sparing surgery may be considered. The decision is based on the location and extent of the cancer and whether preserving the nerves can be done without compromising cancer removal. Recovery of erectile function can take months or longer, and some men may require treatment or rehabilitation during recovery.
Does Robotic Surgery Always Mean a Smaller Operation?
Not necessarily. The external incisions are smaller with robotic surgery, but the underlying prostate removal remains a major cancer operation. The surgeon may also need to remove lymph nodes or perform additional procedures depending on the patient's cancer. Therefore, smaller skin incisions should not be confused with a minor procedure.
When Might Robotic Surgery Be Considered?
Robotic-assisted radical prostatectomy may be considered when radical prostatectomy is an appropriate treatment for the patient's prostate cancer and the surgical team has the required expertise and technology. The decision can depend on:
- The stage and grade of the prostate cancer
- The location and extent of the tumour
- Whether the cancer appears confined to the prostate
- Whether lymph node removal is required
- The patient's age and general health
- Previous abdominal or pelvic surgery
- The surgeon's experience and available facilities
- The patient's preferences after discussing the potential benefits and risks
The Bottom Line
Robotic and open radical prostatectomy are two different ways of performing the same fundamental cancer operation: removing the prostate and surrounding structures when indicated. Robotic surgery uses several small incisions, a magnified camera view and surgeon-controlled robotic instruments, while open surgery uses a larger incision and conventional surgical instruments.
Robotic surgery often offers short-term advantages such as lower blood loss, less postoperative discomfort and faster initial recovery. However, it should not be assumed to provide better cancer control or eliminate the risks of urinary incontinence and erectile dysfunction. The most appropriate approach depends on the cancer itself, the patient's health and anatomy, and the expertise of the surgical team.
