The SI Joint Rhizotomy Procedure Explained
The SI Joint Rhizotomy Procedure Explained The sacroiliac (SI) joint is a pivotal part of the pelvis, connecting the sacrum at the base of the spine to the ilium of the pelvis. Despite its small size, it plays a significant role in transmitting forces between the upper body and legs, providing stability during movement. However, when the SI joint becomes inflamed or dysfunctional, it can cause persistent lower back pain, buttock discomfort, and even radiating leg pain. For some, conservative treatments like physical therapy, medications, or injections may not provide sufficient relief, prompting consideration of minimally invasive procedures such as SI joint rhizotomy.
A rhizotomy is a procedure aimed at disrupting the nerve signals responsible for transmitting pain from the SI joint. Specifically, in the context of SI joint pain, a controlled destruction of the nerves that supply the joint can significantly reduce discomfort. The process typically involves the use of radiofrequency energy—a technique that applies heat to targeted nerve fibers, effectively “deactivating” them. This interruption prevents pain signals from reaching the brain, offering patients relief from chronic SI joint pain.
The SI Joint Rhizotomy Procedure Explained The procedure is generally performed under local anesthesia with sedation, allowing patients to remain comfortable while the doctor carefully guides the treatment. Using imaging guidance—most often fluoroscopy (a real-time X-ray)—the physician inserts a thin needle through the skin and advances it towards the nerves surrounding the SI joint. Once the needle is properly positioned, a small test is performed to ensure the correct nerve is targeted, often involving a temporary nerve block that should diminish pain temporarily. If the test indicates that blocking these nerves alleviates the patient’s pain, the doctor proceeds with the radiofrequency ablation.
During the ablation, a special probe delivers radiofrequency energy to heat and disrupt the nerve tissue, typically at temperatures around 80 degrees Celsius. This thermal lesioning permanently damages the nerve fibers, preventing them from transmitting pain signals. The entire process usually takes about 30 to 60 minutes, and patients are monitored afterward to ensure there are no immediate complications. The SI Joint Rhizotomy Procedure Explained
The SI Joint Rhizotomy Procedure Explained One of the notable benefits of SI joint rhizotomy is that it is minimally invasive, with a relatively quick recovery period compared to traditional surgery. Most patients experience significant pain relief within days to weeks post-procedure, although results can vary based on individual factors. Some may require additional treatments or physical therapy to maximize benefit. It is also important to recognize that nerve regeneration over time may lead to the return of pain, potentially necessitating repeat procedures.
The SI Joint Rhizotomy Procedure Explained While generally safe, the procedure carries some risks, such as minor bleeding, infection, or nerve injury, which are uncommon when performed by experienced practitioners. Patients should have a thorough consultation with their healthcare provider to determine if this treatment aligns with their specific condition.
In summary, SI joint rhizotomy offers a promising solution for those suffering from persistent SI joint pain unresponsive to conservative measures. By selectively disrupting the nerves that transmit pain, it provides relief and improves quality of life with minimal downtime. As with any medical procedure, proper evaluation and skilled execution are essential to achieve optimal outcomes. The SI Joint Rhizotomy Procedure Explained









