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Percentage of acetabular walls crossing. Normal acetabulum is oriented in anteversion. Its value ranges from 15 to 20° in the equatorial plane of the acetabulum and decreases gradually towards the acetabular roof, where normal values range from 0 to 5°. Retroversion of the upper part of the acetabulum has been related with pincer type ...
The perforate acetabulum is a cup-shaped opening on each side of the pelvic girdle formed where the ischium, ilium, and pubis all meet, and into which the head of the femur inserts. [ 8 ] [ 9 ] The orientation and position of the acetabulum is one of the main morphological traits that caused dinosaurs to walk in an upright posture with their ...
This line is used to measure the acetabular angle and as a reference for Perkin line. (B) Perkin line is perpendicular to Hilgenreiner line, touching the lateral margin of the acetabular roof. [5] This leads to four quadrants and a normal femoral head has to be located in the inferomedial quadrant.
Protrusio acetabuli is an uncommon defect of the acetabulum, the socket that receives the femoral head to make the hip joint. The hip bone of the pelvic bone/girdle is composed of three bones, the ilium, the ischium and the pubis. In protrusio deformity, there is medial displacement of the femoral head in that the medial aspect of the femoral ...
Osteosclerosis is a disorder characterized by abnormal hardening of bone and an elevation in bone density. It may predominantly affect the medullary portion and/or cortex of bone.
A teardrop-shaped lower portion gives origin to the iliofemoral ligament of the hip joint and borders the rim of the acetabulum. [ 1 ] Anteromedially and inferiorly to the AIIS is the iliopsoas groove , the passage for the iliopsoas muscle as it passes down to the lesser trochanter of the femur .
Mönckeberg's arteriosclerosis, or Mönckeberg's sclerosis, is a non-inflammatory form of arteriosclerosis (artery hardening), which differs from atherosclerosis traditionally. Calcium deposits are found in the muscular middle layer of the walls of arteries (the tunica media ) [ 1 ] with no obstruction of the lumen .
The iliac wings are small and squared, with a narrow sciatic notch and horizontal acetabular roof. [30] [31] The tubular bones are short and thick with metaphyseal cupping and flaring and irregular growth plates. [30] Fibular overgrowth is present. The hand is broad with short metacarpals and phalanges, and a trident configuration.