Tibial Articular Branches to the Posterior Knee

rami articulares nervi tibialis (pars posterior)

The tibial nerve gives off articular branches to the posterior knee capsule and posterior cruciate ligament as it descends through the popliteal fossa. These branches provide nociceptive and proprioceptive innervation to the posterior compartment of the knee joint.

Region: Knee

Clinical Relevance

Clinical Notes

Tibial articular branch blocks targeting the posterior knee are used in genicular nerve ablation protocols for knee osteoarthritis pain management. The posterior knee capsule is richly innervated and contributes significantly to the total pain burden in knee osteoarthritis. MRI-guided or ultrasound-guided posterior capsular injections address this component specifically. Arthroscopic posterior capsule release in knee contracture involves these branches.

Pathology

Common Injuries & Conditions

Posterior Capsular Pain Syndrome

Nociceptive sensitisation of the posterior knee capsule and PCL via tibial articular branches in posterolateral corner injuries and knee osteoarthritis, producing deep posterior knee pain with full flexion and direct popliteal pressure.