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Capsule of hip joint

Field	Value
Name	Capsule of hip joint
Latin	capsula articularis coxae
Image	Gray343.png
Caption	Capsule of hip-joint (distended). Posterior aspect.
Image2	Gray342.png
Caption2	Hip-joint, front view. The capsular ligament has been largely removed. (Capsular ligament visible at center.)

The capsule of hip joint, articular capsule, or capsular ligament is strong and dense attachment of the hip joint.

Anterosuperiorly, it is attached to the margin of the acetabulum 5 to 6 mm beyond the labrum behind; but in front, it is attached to the outer margin of the labrum, and, opposite to the notch where the margin of the cavity is deficient, it is connected to the transverse ligament, and by a few fibers to the edge of the obturator foramen.

It surrounds the neck of the femur, and is attached, in front, to the intertrochanteric line; above, to the base of the neck; behind, to the neck, about 1.25 cm above the intertrochanteric crest; below, to the lower part of the neck, close to the lesser trochanter.

From its femoral attachment some of the fibers are reflected upward along the neck as longitudinal bands, termed retinacula.

The capsule is much thicker at the upper and forepart of the joint, where the most resistance is required; behind and below, it is thin and loose.

It consists of two sets of fibers, circular and longitudinal.

The circular fibers, zona orbicularis, are most abundant at the lower and back part of the capsule, and form a sling or collar around the neck of the femur.

Anteriorly they blend with the deep surface of the iliofemoral ligament, and gain an attachment to the anterior inferior iliac spine.

The longitudinal fibers are greatest in amount at the upper and front part of the capsule, where they are reinforced by distinct bands, or accessory ligaments, of which the most important is the iliofemoral ligament.

The other accessory bands are known as the pubofemoral ligament and the ischiofemoral ligament.

The external surface of the capsule is rough, covered by numerous muscles, and separated in front from the psoas major and iliacus by the iliopectineal bursa, which not infrequently communicates by a circular aperture with the cavity of the joint.

Pathologies

Hip Capsule Contracture

This pathology is similar to the frozen shoulder. It may be caused by arthritis or by a long period of immobilization

Capsular Pattern :

According to Cyriax : ROM of Medial rotation, flexion and abduction are more reduced than extension

End-Feels

The end-feel is abnormal when there's a capsule contracture.
you may feel a firm capsular end-feel, but it's before the complete ROM.
it may be empty, caused by severe pain

References

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

ligaments-of-the-lower-limb

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