|
Capsule Of Hip Joint
The articular capsule (capsular ligament) is strong and dense. 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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acetabulum
The acetabulum (), also called the cotyloid cavity, is a concave surface of the pelvis. The head of the femur meets with the pelvis at the acetabulum, forming the hip joint. Structure There are three bones of the ''os coxae'' (hip bone) that come together to form the ''acetabulum''. Contributing a little more than two-fifths of the structure is the ischium, which provides lower and side boundaries to the acetabulum. The ilium forms the upper boundary, providing a little less than two-fifths of the structure of the acetabulum. The rest is formed by the pubis, near the midline. It is bounded by a prominent uneven rim, which is thick and strong above, and serves for the attachment of the acetabular labrum, which reduces its opening, and deepens the surface for formation of the hip joint. At the lower part of the ''acetabulum'' is the acetabular notch, which is continuous with a circular depression, the acetabular fossa, at the bottom of the cavity of the ''acetabulum''. The re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acetabular Labrum
The acetabular labrum (glenoidal labrum of the hip joint or cotyloid ligament in older texts) is a ring of cartilage that surrounds the acetabulum of the hip. The anterior portion is most vulnerable when the labrum tears. It provides an articulating surface for the acetabulum, allowing the head of the femur to articulate with the pelvis. Acetabular labrum tear Mechanisms of Injury It is estimated that 75% of acetabular labrum tears have an unknown cause. Tears of the labrum have been credited to a variety of causes such as excessive force, hip dislocation, capsular hip hypermobility, hip dysplasia, and hip degeneration. A tight iliopsoas tendon has also been attributed to labrum tears by causing compression or traction injuries that eventually lead to a labrum tear.Smith, M., Panchal, H., Ruberte, R., & Sekiya, J. (2011). Effect of acetabular labrum tears on hip stability and labral strain in a joint compression model. The American Journal of Sports Medicine, 39, 103S-110S. Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transverse Acetabular Ligament
The transverse acetabular ligament (transverse ligament or Tunstall’s ligament) is a portion of the acetabular labrum, though differing from it in having no cartilage cells among its fibers. It consists of strong, flattened fibers, which cross the acetabular notch, and convert it into a foramen through which the nutrient vessels enter the joint. It is an intra-articular structure of the hip. Function The transverse acetabular ligament prevents inferior displacement of head of femur The femur (; ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates. The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with .... Additional Images File:Slide2DAD.JPG, Hip joint. Lateral view. Transverse acetabular ligament File:Slide2DADA.JPG, Hip joint. Lateral view. Transverse acetabular ligament References External links * Ligaments of the lower limb {{l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obturator Foramen
The obturator foramen (Latin foramen obturatum) is the large opening created by the ischium and pubis (bone), pubis bones of the pelvis through which nerves and blood vessels pass. Structure It is bounded by a thin, uneven margin, to which a strong membrane is attached, and presents, superiorly, a deep groove, the obturator groove, which runs from the pelvis obliquely medialward and downward. This groove is converted into the obturator canal by a ligamentous band, a specialized part of the obturator membrane, attached to two tubercles: * one, the posterior obturator tubercle, on the medial border of the ischium, just in front of the acetabular notch * the other, the anterior obturator tubercle, on the obturator crest of the superior pubic ramus, superior ramus of the pubis (bone), pubis Variation Reflecting the overall sex differences in human physiology, sex differences between male and female pelvises, the obturator foramina are oval in the male and wider and more triangular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neck Of The Femur
The femoral neck (femur neck or neck of the femur) is a flattened pyramidal process of bone, connecting the femoral head with the femoral shaft, and forming with the latter a wide angle opening medialward. Structure The neck is flattened from before backward, contracted in the middle, and broader laterally than medially. The vertical diameter of the lateral half is increased by the obliquity of the lower edge, which slopes downward to join the body at the level of the lesser trochanter, so that it measures one-third more than the antero-posterior diameter. The medial half is smaller and of a more circular shape. The anterior surface of the neck is perforated by numerous vascular foramina. Along the upper part of the line of junction of the anterior surface with the head is a shallow groove, best marked in elderly subjects; this groove lodges the orbicular fibers of the capsule of the hip joint. The posterior surface is smooth, and is broader and more concave than the anter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intertrochanteric Line
The intertrochanteric line (or ''spiral line of the femur''White (2005), p 256 ) is a line located on the anterior side of the proximal end of the femur. Structure The rough, variable ridge stretches between the lesser trochanter and the greater trochanter forming the base of the neck of the femur, roughly following the direction of the shaft of the femur. The iliofemoral ligament — the largest ligament of the human body — attaches above the line which also strengthens the capsule of the hip joint. The lower half, less prominent than the upper half, gives origin to the upper part of the Vastus medialis. Just like the intertrochanteric crest on the posterior side of the femoral head, the intertrochanteric line marks the transition between the femoral neck and shaft.Platzer (2004), p 192 The distal capsular attachment on the femur follows the shape of the irregular rim between the head and the neck. As a consequence, the capsule of the hip joint attaches in the reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intertrochanteric Crest
The intertrochanteric crest is a prominent bony ridge upon the posterior surface of the femur at the junction of the neck and the shaft of the femur. It extends between the greater trochanter superiorly, and the lesser trochanter inferiorly. Anatomy The intertrochanteric crest is a prominent smooth bony ridge upon the posterior surface of the femur at the junction of the neck and the shaft of the femur; together with the intertrochanteric line on the anterior side of the head, the intertrochanteric crest marks the transition between the femoral neck and shaft. The intertrochanteric crest extends between the greater trochanter superiorly, and the lesser trochanter inferiorly; it passes obliquely inferomedially from the greater trochanter to the lesser trochanter. An elevation between the middle and proximal third of the crest is known as the quadrate tubercle. Relations The distal capsular attachment on the femur follows the shape of the irregular rim between the head and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zona Orbicularis
The zona orbicularis or annular ligament is a ligament on the Femur neck, neck of the femur formed by the circular fibers of the Capsule of hip joint, articular capsule of the Hip, hip joint. It is also known as the orbicular zone, ring ligament, and zonular band. Structure The zona orbicularis forms a ring around the neck of the femur. The articular capsule is much thicker above and in front of the joint, where the greatest amount of resistance is required, and thin and loose behind and below the joint. The capsule consists of two sets of fibers, circular and longitudinal. The circular fibers, the zona orbicularis, are most abundant at the lower and back part of the capsule where they form a sling or collar around the femoral neck. Anteriorly, they blend with the deep surface of the iliofemoral ligament, and gain an attachment to the anterior inferior iliac spine.''Gray's Anatomy'' (1918), 7a3 Function The zona orbicularis and proximal hip joint capsule are poorly understoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femur
The femur (; ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates. The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia (shinbone) and patella (kneecap), forming the knee joint. By most measures the two (left and right) femurs are the strongest bones of the body, and in humans, the largest and thickest. Structure The femur is the only bone in the upper leg. The two femurs converge medially toward the knees, where they articulate with the proximal ends of the tibiae. The angle of convergence of the femora is a major factor in determining the femoral-tibial angle. Human females have thicker pelvic bones, causing their femora to converge more than in males. In the condition ''genu valgum'' (knock knee) the femurs converge so much that the knees touch one another. The opposite extreme is ''genu varum'' (bow-leggedness). In the general populatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iliofemoral Ligament
The iliofemoral ligament is a ligament of the hip joint which extends from the ilium to the femur in front of the joint. It is also referred to as the Y-ligament (see below). the ligament of Bigelow, the ligament of Bertin and any combinations of these names. With a force strength exceeding 350 kg (772 lbs), the iliofemoral ligament is not only stronger than the two other ligaments of the hip joint, the ischiofemoral and the pubofemoral, but also the strongest ligament in the human body and as such is an important constraint to the hip joint. Structure Arising from the anterior inferior iliac spine and the rim of the acetabulum, the iliofemoral ligament spreads obliquely downwards and laterally to the intertrochanteric line on the anterior side of the femoral head. It is divided into two parts or bands which act differently: the transverse part above, is strong and runs parallel to the axis of the femoral neck. The descending part below, is weaker and runs parallel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anterior Inferior Iliac Spine
Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and anatomical axes. The meaning of terms that are used can change depending on whether an organism is bipedal or quadrupedal. Additionally, for some animals such as invertebrates, some terms may not have any meaning at all; for example, an animal that is radially symmetrical will have no anterior surface, but can still have a description that a part is close to the middle ("proximal") or further from the middle ("distal"). International organisations have determined vocabularies that are often used as standard vocabularies for subdisciplines of anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pubofemoral Ligament
The pubofemoral ligament (pubocapsular ligament) is a ligament on the inferior side of the hip joint. This ligament is attached, above, to the obturator crest and the superior ramus of the pubis; below, it blends with the capsule and with the deep surface of the vertical band of the iliofemoral ligament. This ligament prevents hyper-abduction of the hip joint. References External links * () *hip/hip%20ligaments/ligaments5at the Dartmouth Medical School The Geisel School of Medicine at Dartmouth is the graduate medical school of Dartmouth College in Hanover, New Hampshire. The fourth oldest medical school in the United States, it was founded in 1797 by New England physician Nathan Smith. It is o ...'s Department of Anatomy Ligaments of the lower limb {{ligament-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
