Gimbernat Ligament Detail

ligamentum lacunare (Gimbernat) detail

Gimbernat ligament (lacunar ligament) is the medial expansion of the inguinal ligament curving posteriorly to attach to the pectineal line, forming the sharp medial boundary of the femoral canal.

Region: Abdomen

Biomechanics

Function & Actions

Forms the unyielding medial wall of the femoral ring through which femoral hernias protrude and become strangulated. Its sharp medial edge is the structure that traps a strangulated femoral hernia.

Clinical Relevance

Clinical Notes

The lacunar ligament is the structure requiring division to reduce a strangulated femoral hernia — its sharp medial edge must be incised to release the constricting ring. The aberrant obturator artery (corona mortis — present in 20%) curves around the medial edge of the lacunar ligament and must be identified before division to prevent catastrophic haemorrhage.

Pathology

Common Injuries & Conditions

Lacunar Ligament Division for Strangulated Femoral Hernia

Incision of the unyielding lacunar ligament to release the constricting femoral ring and reduce strangulated bowel, with care to identify the aberrant obturator artery beforehand.

Corona Mortis at Lacunar Ligament

Aberrant obturator artery (corona mortis) curving around the lacunar ligament present in 20% of patients, at risk of injury during femoral hernia repair requiring pre-operative awareness.