Pectineal ligament

The pectineal ligament (a.k.a. the Coopers ligament), is a strong fibrous extension of the lacunar ligament that runs laterally along the pectineal line (pecten pubis) of the superior pubic ramus. Its fibres are derived from the inguinal ligament, lacunar ligament, and periosteum of the pubic bone, creating a dense fibrous band firmly attached to the pecten pubis.

Relations of pectineal ligament

• The pectineal ligament lies posterior to the femoral canal and forms part of the posterior boundary of the femoral ring. Anteriorly, it is closely related to the femoral canal and femoral vessels,

• Posteriorly, it is attached to the superior pubic ramus and pectineus fascia.

• Medially, it is continuous with the lacunar ligament, and

• Laterally, it blends with the fascia covering the psoas and pectineus muscles.

Due to its dense fibrous composition and strong periosteal attachment, the pectineal ligament provides important reinforcement to the medial groin region.

Clinical correlates

The pectineal ligament contributes to the containment of femoral hernias. In surgical repair of inguinal and femoral hernias, sutures may be anchored to the pectineal ligament because of its strength and fixed attachment to bone.