Rectal Surgery - Medical Experts in the Treatment of Rectal Cancer

Rectal surgery is a subspecialty of visceral surgery and deals with the surgical treatment of diseases of the rectum. The rectum is the final section of the large intestine and opens into the anal canal. Conditions in this area can cause symptoms such as pain, bleeding, changes in bowel habits, and functional disorders. Surgical treatment requires special expertise, as the rectum is located in a narrow section of the pelvis and important nerve structures responsible for continence and sexual function must be protected. 


Illustration of a minimally invasive rectal surgery: Laparoscopic instruments allow for precise work within the small pelvis and facilitate gentle tumor removal.

Common Conditions

The most common reason for surgery is rectal cancer—a form of cancer that affects the rectum. In addition, polyps that may develop into cancer can be surgically removed. Chronic inflammatory bowel diseases such as ulcerative colitis or Crohn’s disease, as well as functional disorders such as severe rectal prolapse symptoms, may also require treatment. In the case of a tumor in the rectum, treatment should follow an oncologically proven protocol. 

When is surgery necessary?

Surgery is indicated when conservative therapy is insufficient or when the procedure offers a better prognosis. The decision also depends on the tumor stage, the patient’s symptoms, and their overall health. Surgery is particularly indicated when a function-preserving approach is possible, thereby enabling good long-term outcomes.

A thorough diagnostic evaluation is performed before surgery. This includes a colonoscopy, tissue biopsy, laboratory tests, and imaging procedures such as MRI and CT scans to accurately assess the extent of the disease. In cases of rectal cancer, the treatment plan is often determined by an interdisciplinary tumor board. An oncological evaluation helps determine the best treatment option for each individual patient. 

Minimally Invasive Procedures

Modern techniques now enable minimally invasive procedures that support a faster recovery. These include laparoscopic surgery and laparoscopic surgery for rectal cancer. Robotic systems are also used. Robotic-assisted surgery offers advantages in complex procedures within the confined pelvic space due to more precise instrument control. Studies comparing robotic-assisted and conventional laparoscopic surgery show potential improvements in visibility and precision.

In addition, minimally invasive treatment for rectal cancer is used to minimize the burden on the patient as much as possible.

Open Surgery

In certain situations, open surgery is necessary. Open surgery is usually chosen when minimally invasive techniques are no longer sufficient, e.g., in cases of extensive disease or following previous surgeries. Open surgery for rectal cancer remains relevant in select cases and is carefully considered.

Typical Surgical Methods

A key surgical procedure is rectal resection, in which the diseased section of the rectum is removed. Total mesorectal excision (TME) is considered the global standard of care for rectal cancer. During this procedure, all surrounding fatty tissue, including lymph nodes, is removed to reduce the risk of recurrence. Studies on total mesorectal and mesorectal excision for rectal cancer have shown that this approach leads to better long-term outcomes.

A colostomy (stoma) is created only when medically necessary. Often, this is only temporary, to aid in wound healing. 

Before the procedure, patients receive detailed information, followed by careful preparation. The surgery is performed under general anesthesia. The duration and extent of the procedure depend on the specific clinical presentation and the chosen surgical technique. After the procedure, patients initially remain in the hospital for monitoring. The hospital stay usually lasts from a few days to about 2 weeks.

Like any surgical procedure, rectal surgery can also cause complications. These include postoperative bleeding, infections, wound healing disorders, or functional impairments. High-quality care and standardized procedures significantly reduce the risk. Specialized centers have extensive experience, including in managing potential problems.

Structured follow-up care supports recovery. This includes an adapted diet, physical rest, and a gradual return to normal bowel function. Physical therapy can help stabilize continence after such a procedure. If a temporary stoma is used, patients receive specific instructions on its care. Regular follow-up appointments ensure the success of the treatment.

The prognosis following surgery depends on various factors, including tumor stage, surgical method, and the surgeon’s experience. Studies on rectal cancer outcomes at one year show that specialized centers achieve better treatment results. Patients with rectal cancer benefit particularly from consistently applied treatment plans and standardized procedures. Evaluations of the “Quality of TME Specimen Compared” highlight the advantages of minimally invasive approaches.

Experience and specialization have a decisive influence on the outcome. Clinics with proven expertise more frequently achieve a higher quality of TME specimens and thus better long-term outcomes. Studies comparing laparoscopic-assisted resection with open resection surgery demonstrate that modern surgical methods, when performed by experienced surgeons, offer clear advantages. 

When it comes to rectal surgery, you benefit from the expertise of experienced surgeons who specialize in minimally invasive procedures. Choosing a qualified specialist in rectal surgery is an important step toward achieving the best possible treatment outcome.