(1) Thirteen patients had had a posterior dislocation with an associated fracture of the femoral head located either caudad or cephalad to the fovea centralis (Pipkin Type-I or Type-II injury), one had had a posterior dislocation with associated fractures of the femoral head and neck (Pipkin Type III), two had had a posterior dislocation with associated fractures of the femoral head and the acetabular rim (Pipkin Type IV), and three had had a fracture-dislocation that we could not categorize according to the Pipkin classification.
(2) The dimensions of the acetabular wall were thinner in the hips that had the thirty-two-millimeter component than in those that had the twenty-two-millimeter component (p less than 0.05).
(3) Forty metal femoral cups were matched with a cemented acetabulum, while with 46 the acetabular implant was cementless.
(4) Fifty-eight displaced central acetabular fractures treated surgically were followed from one to 12 years.
(5) The wear noted in the majority of components was much greater than that noted in wear studies of acetabular components in total hip prostheses.
(6) Endogenous factors such as acetabular dysplasia, increased anteversion of the femoral neck, capsular laxity support the genetic theory but they are neither constant nor necessary and are only facilitating factors.
(7) We concluded that the acetabular component of the Wagner prosthesis is prone to early loosening and that the early loosening is potentiated by a foreign-body response to debris resulting from arthroplastic wear.
(8) The reduction in the rate of aseptic loosening of the socket in our series, compared with the higher rates reported in similar long-term studies in which other acetabular components were used, supports the conclusion that there is enhanced longevity of acetabular fixation when a metal-backed acetabular component is used in cemented total hip arthroplasty.
(9) In cases with an acetabular index higher than 35 degrees acetabuloplasty is more effective.
(10) In this article, the improvements in cementing technique and cemented acetabular component design, as well as the evolution of noncemented acetabular cups, are reviewed.
(11) From these data, three-dimensional resultant forces on the hip and muscular forces around the hip were calculated through the computer in the normal and the postoperative states of Salter pelvic osteotomy, Chiari pelvic osteotomy and rotational acetabular osteotomy.
(12) The correction of the limb's position allows the subsequent correct development of the acetabular roof.
(13) In all cases high viscosity cement was used, but not under pressure; acetabular cartilage was removed, but the femoral canal was not plugged.
(14) In the hips with acetabular protrusion, preoperative values of the force were less than in that the trochanter united and postoperative increase in the abductor force was noted.
(15) In particular, pain was reduced in cases of mobilisation of the acetabular component, and persisted when mobilisation was in the femoral component.
(16) The initial injury had been a posterior dislocation without associated fracture of the acetabular wall, and the hip had not been immobilised or protected from weight-bearing during treatment.
(17) If the criteria for success of major superior acetabular allografts include incorporation of the graft and long-term stability of the implant, then the success rate in this series is very low.
(18) This preoperative acetabular index of 46 degrees improved to 28 degrees postoperatively, and proved to be the most reliable indicator for need of an added pelvic osteotomy.
(19) Major clinical findings include: asymmetric bilateral cryptophthalmos, unilateral orbital cyst of the nasofrontal area, bilateral anophthalmos, right choanal atresia, right microtia, right auditory canal atresia, hypodontia, ankyloglossia, cartilaginous synchondroses of the cervical vertebrae, and bilateral acetabular dysplasia.
(20) Quantification of acetabular coverage is important and can be expressed by superimposition of cartilage tracings on the maximum cross-sectional area of the femoral head.
Acetabulum
Definition:
(n.) A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc.
(n.) The bony cup which receives the head of the thigh bone.
(n.) The cavity in which the leg of an insect is inserted at its articulation with the body.
(n.) A sucker of the sepia or cuttlefish and related animals.
(n.) The large posterior sucker of the leeches.
(n.) One of the lobes of the placenta in ruminating animals.
Example Sentences:
(1) In patients with spastic paraplegia presenting with recurrent dislocation of the hip, operative treatment combining a soft tissue repair and a bone block to augment the acetabulum is recommended.
(2) The purpose of this paper is to know how to correct the maldirection of the acetabulum.
(3) Metastatic involvement of the pelvis, and in particular the acetabulum, is a common finding among patients with metastatic osseous disease.
(4) Forty metal femoral cups were matched with a cemented acetabulum, while with 46 the acetabular implant was cementless.
(5) Because of destructive wear of the acetabulum, this eventually required revision total hip arthroplasty 12 years after the original surgery.
(6) This paper describes a simple linear intertrochanteric osteotomy which aims to centre the femoral head correctly in the acetabulum.
(7) The results are reported of 44 consecutive Chiari innominate osteotomies performed on 39 adult patients aged between 18 and 55 years for symptoms arising from disproportion between the acetabulum and the femoral head.
(8) The acetabulum must be totally reconstructed and relocated as near as possible to its original orientation.
(9) We have used the technique in more than 500 patients with injuries to the skull, spine, acetabulum, sternoclavicular joint, shoulder, knee, and calcaneus and are able to demonstrate the benefit of special investigation protocols.
(10) A radiolucent line was present in the acetabulum in 40.6% of cases; cortical hypertrophy at the tip of the stem was present in 48.8% of cases.
(11) With reference to cartilage, the lesions of Paget's coxopathies presented several specific characteristics compared with those of common arthrosis : (1) the presence of particularly numerous cupshaped defects on the remaining cartilage; (2) a very basophilic, intra- and extra-cytoplasmic substance impregnated the chondroplasts of the bottom layer, nine times out of twenty-six, an anomaly not observed in cases of arthrosis; (3) pseudo-angiomatous vascular outgrowths from the bone, flush with the articular surface of the acetabulum are a source of bleeding during surgery.
(12) The frequency of radiological demarcation of the cement-bone junction in the acetabulum after total hip replacement has been examined in 141 Charnley low-friction arthroplasties followed for an average of 10.1 years.
(13) The bolt penetrated deeply into the pelvis, through the acetabulum, the joint cavity and the head of the femur leading to fixation of the hip.
(14) The uterus is short, convoluted between the anterior testis and the acetabulum, containing 0-6 eggs.
(15) This report deals with findings related to the acetabulum.
(16) In twelve such patients we did an extensive resection of the proximal part of the femur, down to below the lesser trochanter, and constructed a capsular flap across the acetabulum.
(17) The acetabulum fractures more frequently showed difficult forms than otherwise reported.
(18) The post-operative natural change observed by radiography and scintigraphy at the site of the roof of acetabulum was statistically significant (p less than 0.01) by the chi-square test.
(19) Radiographs often show cystic radiolucent defects in the acetabulum and femoral head, but the joint space remains preserved until late.
(20) This bone disease is defined by a rapid chondrolysis with total obliteration of the joint space in the superolateral segment of the joint in an average period of one year, followed by rapid bone destruction of the femoral head and the roof of the acetabulum.