What is the retinaculum Extensorum?
Anatomical Parts
The extensor retinaculum (dorsal carpal ligament; posterior annular ligament) is an anatomical term for the thickened part of the antebrachial fascia that holds the tendons of the extensor muscles in place. It is located on the back of the forearm, just proximal to the hand.
What is retinaculum made of?
Structurally, the retinaculum consists of three layers. The deepest layer, the gliding layer, consists of hyaluronic acid-secreting cells. The thick middle layer consists of interspersed elastin fibers, collagen bundles, and fibroblasts.
What is the function of the retinaculum?
A retinaculum (plural retinacula) is a band of thickened deep fascia around tendons that holds them in place. It is not part of any muscle. Its function is mostly to stabilize a tendon. The term retinaculum is New Latin, derived from the Latin verb retinere (to retain).
What is the function of retinaculum in foot?
A retinaculum is a band of thick deep fascia that holds the long tendons of your ankle (those that cross the ankle) in place. Retinaculum also acts as a pulley system increasing mechanical advantage. Retinaculum are a major source of neurological receptors involved in balance and proprioception.
What is the purpose of retinaculum?
Retinacula are thickenings of tissue underneath your skin that serve to bind down tendons of muscles so they don’t “bowstring” at certain joints, meaning pop up when the joint is flexed or extended.
What is the function of a retinaculum?
Can retinaculum repair itself?
Background: Superior peroneal retinaculum tears are often mistaken for lateral ankle instability. These tears often do not heal readily by themselves and must be identified so that proper treatment can begin.
Is retinaculum a ligament or tendon?
How is retinaculum treated?
TREATMENT. Restrictions of the retinacula can be treated quite effectively with Manual Therapy and a series of corrective exercises. Treating with manual therapy involves breaking restrictions between the retinaculum and the tendon.
What happens if you tear your retinaculum?
A rupture of the extensor retinaculum could result in a loss of dorsiflexion power, prominent tendons in the anterior aspect of the ankle and local inflammation due to lack of appropriate tracking or sliding disturbance of the tendons.
Is the retinaculum a tendon or ligament?
A retinaculum refers to any region on the body in which tendon groups from different muscles pass under one connective tissue band. Wrist retinacula include the flexor and the extensor retinacula of the hand.
How long does it take for retinaculum to heal?
Recovery from surgery requires a moderately long period, usually in the order of 2-6 weeks of immobilization, in order to allow the retinaculum and any bony procedures to heal. This is followed by four to six weeks of fairly graduated and intensive rehabilitation.
How long does it take retinaculum to heal?
Can you damage your retinaculum?
With injury (trauma, repetitive strain), the retinaculum can become a site of tendon restriction, nerve impingement, and circulatory compression. Injury to the retinaculum will cause mechanical and neurological damage.