Infrapatellar branch of saphenous nerve

Infrapatellar Branch of Saphenous Nerve

The infrapatellar branch of the saphenous nerve is a sensory nerve that innervates the skin overlying the infrapatellar region of the knee. It is a branch of the saphenous nerve, which is a major branch of the femoral nerve. The infrapatellar branch plays a crucial role in providing sensation to the anterior aspect of the knee joint.

Anatomy

The saphenous nerve originates from the femoral nerve in the thigh. It descends along the medial aspect of the thigh, passing through the adductor canal. Within the adductor canal, the saphenous nerve gives rise to the infrapatellar branch.

The infrapatellar branch emerges from the adductor canal and courses anteriorly, passing beneath the sartorius muscle. It then descends along the anterior aspect of the knee joint, supplying sensory innervation to the skin overlying the infrapatellar region.

Function

The primary function of the infrapatellar branch of the saphenous nerve is to provide sensory innervation to the skin overlying the infrapatellar region. This region includes the area just below the patella (kneecap) and extends towards the tibial tuberosity.

The sensory information carried by the infrapatellar branch is crucial for proprioception and pain perception in the knee joint. It allows for the detection of touch, pressure, temperature, and pain in the infrapatellar region.

Clinical Significance

Injury or irritation of the infrapatellar branch of the saphenous nerve can result in sensory disturbances in the knee region. Common causes of such injuries include trauma, surgical procedures, or compression due to prolonged kneeling or pressure on the knee.

Patients with infrapatellar branch neuropathy may experience symptoms such as numbness, tingling, or a burning sensation in the infrapatellar region. They may also have decreased sensitivity to touch or temperature changes in the affected area.

Treatment options for infrapatellar branch neuropathy depend on the underlying cause and severity of symptoms. Conservative management may include rest, physical therapy, and pain management. In some cases, surgical intervention may be necessary to decompress or repair the nerve.

Related Topics

• Saphenous Nerve
• Femoral Nerve
• Knee Joint
• Proprioception
• Neuropathy

References

1. Standring, S. (Ed.). (2016). Gray's Anatomy: The Anatomical Basis of Clinical Practice (41st ed.). Elsevier.

2. Moore, K. L., Dalley, A. F., & Agur, A. M. R. (2014). Clinically Oriented Anatomy (7th ed.). Lippincott Williams & Wilkins.

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