retinaculum


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Related to retinaculum: lateral patellar retinaculum, extensor retinaculum

retinaculum

 [ret″ĭ-nak´u-lum]
a structure that retains an organ or tissue in place.
flexor retinaculum of hand a fibrous band forming the carpal tunnel, through which pass the tendons of the flexor muscles of the hand and fingers.
retinaculum morga´gni a ridge formed by the coming together of segments of the ileocecal valve.
retinaculum ten´dinum a tendinous restraining structure, such as an annular ligament.

ret·i·nac·u·lum

, gen.

ret·i·nac·u·li

, pl.

ret·i·nac·u·la

(ret'i-nak'yū-lŭm, -lī, -lă), [TA]
A frenulum, or a retaining band or ligament.
[L. a band, a halter, fr. retineo, to hold back]

retinaculum

/ret·i·nac·u·lum/ (ret″ĭ-nak´u-lum) pl. retina´cula   [L.]
1. a structure that retains an organ or tissue in place.
2. an instrument for retracting tissues during surgery.

extensor retinaculum of foot, inferior  a thickened band of the crural fascia passing from each malleolus across the front of the ankle joint, there crossing the other and passing onto the dorsum of the foot.
extensor retinaculum of foot, superior  the thickened lower portion of the fascia on the front of the leg, attached to the tibia on one side and the fibula on the other, and holding in place the extensor tendons that pass beneath it.
extensor retinaculum of hand  the distal part of the antebrachial fascia, overlying the extensor tendons.
fibular retinaculum, inferior  inferior peroneal r.
fibular retinaculum, superior  superior peroneal r.
flexor retinaculum of foot  a strong band of fascia that extends from the medial malleolus down onto the calcaneus, holding in place the tendons of the posterior tibial and flexor muscles as they pass to the sole of the foot, and protecting the posterior tibial vessels and tibial nerve.
flexor retinaculum of hand  a fibrous band forming the carpal canal through which pass the tendons of the flexor muscles of the hand and fingers.
peroneal retinaculum, inferior  a fibrous band that arches over the tendons of the peroneal muscles and holds them in position on the lateral side of the calcaneus.
peroneal retinaculum, superior  a fibrous band that arches over the tendons of the peroneal muscles and helps to hold them in place below and behind the lateral malleolus.
retinaculum ten´dinum  a tendinous restraining structure, such as an annular ligament.

retinaculum

(rĕt′n-ăk′yə-ləm)
n. pl. retinacu·la (-lə) Biology
A band or bandlike structure that holds an organ or a part in place.

ret′i·nac′u·lar (-lər) adj.

retinaculum

[ret′inak′yələm] pl. retinacula
Etymology: L, halter
1 a structure that retains an organ or tissue.
2 an instrument for retracting tissues during surgery.

ret·i·nac·u·lum

, pl. retinacula (ret'i-nak'yū-lŭm, -lă) [TA]
A frenum, or a retaining band or ligament.
[L. a band, a halter, fr. retineo, to hold back]

retinaculum

A fibrous band, strap or ligament that holds another part in place. The flexor retinaculum prevents the flexor tendons from springing away from the front of the wrist when it is bent.

retinaculum

  1. a hook-like structure on the forewings of moths that contacts the bristlelike frenulum on the hindwing, thus linking the two.
  2. the hook-like structure that retains the springing organ (furcula) in Collembola.

retinaculum

pl. retinacula [L.]
1. a structure that retains an organ or tissue in place.
2. an instrument for retracting tissues during surgery.

carpal retinaculum
a superficial transverse ligament passing obliquely across the palmar aspect of the carpus, completing the carpal tunnel.
hock retinaculum
one of three transverse ligamentous bands across the dorsal aspect of the hock, holding the digital extensor tendons in place.
retinaculum morgagni
a ridge formed by the coming together of segments of the ileocecal valve. Called also frenulum of ileocecal valve.
patellar retinaculum
medial and lateral patellar ligaments.
retinaculum tendinum
a tendinous restraining structure, such as an annular ligament.
References in periodicals archive ?
These include flexor retinaculum thickening, colles fracture, carpal bone fractures, rheumatoid arthritis, osteoarthritis, Paget disease, neoplasms, tenosynovitis, and osteophytes, scarring resulting from tendon trauma.
When they swell they may put pressure on the median nerve against the flexor retinaculum.
Each section describes common disorders, relating these to the anatomy of joints and soft tissue, including fascia and retinaculum.
Carpal tunnel syndrome, involving compression of the median nerve deep to the flexor retinaculum, is one of the most common nerve compression syndromes encountered in musculoskeletal medical practice, and has a variety of causes and disease associations.
After locating the strongest pulse sensation, which is just proximal from the wrist retinaculum, use your index finger to roll back and forth over the artery to fix its position in your mind.
This recording was performed on patients undergoing surgical section of flexor retinaculum for decompression of carpal tunnel at the Vanderbilt University Medical Center.
A curvilinear incision was made directly over the peroneal tendons from the fibular malleolus to the fifth metatarsal base and the peroneal sheath and inferior peroneal retinaculum were incised.
The lateral canthus or retinaculum is not fully anchored to increase the lateral visual field.
On palpation, clinicians may feel a tight lateral retinaculum.
Intraoperative findings revealed edematous median nerves compressed under the flexor retinaculum.
A great variety of abnormalities have been suggested: an imbalance between flexor and extensor forces, abnormal insertions or strength of the lumbrical muscle, shortening and thickening of the collateral ligaments, anomalous flexor digitorum superficialis or profundus, faulty development of the dorsal extensor aponeurosis, and malformations of the retinaculum cutis in the palmar fascia and natatory ligaments (13).