Recurrent tibial genicular nerve (RTGN)

The recurrent tibial genicular nerve (RTGN), also frequently referred to as the recurrent peroneal genicular nerve, is a sensory nerve branch that provides innervation to the anterior and lateral aspects of the knee joint capsule, the infrapatellar fat pad, and the proximal tibiofibular joint. It typically arises from the common peroneal (fibular) nerve or the deep peroneal nerve near the fibular neck and travels proximally to reach its target tissues. In clinical practice, the RTGN is considered a significant anatomical target for interventional pain management, specifically in patients suffering from chronic knee pain due to osteoarthritis or persistent pain following total knee arthroplasty. Therapeutic interventions include diagnostic nerve blocks using local anesthetics and long-term analgesia via radiofrequency ablation, which thermally disrupts the nerve's ability to transmit pain signals. While not a molecular target in the traditional sense of a receptor or enzyme, its modulation is a cornerstone of advanced genicular neurotomy procedures used to restore function in patients who have failed conservative or surgical treatments.

Other names

Recurrent peroneal genicular nerveRecurrent articular branch of the common peroneal nerveRecurrent peroneal nerveRecurrent branch of the deep peroneal nerveAnterior recurrent tibial nerve

Interventional procedures such as nerve blocks or radiofrequency ablation inhibit signal conduction along the nerve fiber to prevent the transmission of nociceptive (pain) signals to the central nervous system.