BACKGROUND The adverse consequences of impingement, dislocation, and implant wear have stimulated increasing interest in accurate component orientation in total hip arthroplasty and hip resurfacing. The aims of the present study were to define femoral and acetabular orientation in a cohort of patients with primary hip osteoarthritis and to determine whether the orientation of their native hip j...

BackgroundAnterior and posterior pelvic tilt appears to play a role in total hip arthroplasty (THA) stability. When changing from the standing sitting position, pelvis typically rotates posteriorly while hips flex this affects femoro-acetabular positions. This case-control study compares changes 3-D acetabular cup orientation during functional between THA dislocations vs stable THAs.MethodsStan...

This study examined the relationship between the cross-over sign and the true three-dimensional anatomical version of the acetabulum. We also investigated whether in true retroversion there is excessive femoral head cover anteriorly. Radiographs of 64 hips in patients being investigated for symptoms of femoro-acetabular impingement were analysed and the presence of a cross-over sign was documen...

conclusion dt-sfp can improve the detection of relatively early bone abnormalities in acetabular and proximal femur compared with conventional radiography. dt-sfp can also observe the abnormal impact between acetabular and proximal femur. patients and methods ninety-four consecutive patients with discomfort around the hip joint underwent dt-sfp and conventional radiography. the imaging features...

conclusions we recognized this type of fracture and treated it similarly to both column fractures. we recommend that the classification of acetabular fractures be modified to include this type of fracture. introduction acetabular fractures are a common problem among young males. an acetabular fracture with disruption of the joint surface, if untreated, will rapidly lead to post-traumatic osteoa...