Retinaculum
A retinaculum is a band of thickened deep fascia around tendons that holds them in place. It is not part of any muscle and primarily functions to stabilize tendons. The term retinaculum is Neo-Latin, derived from the Latin verb retinere. Specific retinacula include:
- In the wrist:
- * Flexor retinaculum of the hand
- * Extensor retinaculum of the hand
- In the ankle:
- * Flexor retinaculum of foot
- * Superior extensor retinaculum of foot
- * Inferior extensor retinaculum of foot
- * Superior fibular retinaculum
- * Inferior fibular retinaculum
- In the knee:
- * Lateral retinaculum
- * Medial patellar retinaculum