– See: – operative considerations for hip dyplasia – reaming technique: – component insertion: – component position: – screw placement: – acetabular component revision: – bone grafting for acetabular defects: – … Read more
– Patient Position: – ensure that patient has not rotated anteriorly, for this may allow acetabular component to be placed in retroverted position; – ensure that patient’s torso is not tilted inferiorly (as can occur from a bean bag), as this can cause reaming in an excessive … Read more
– Discussion: – considerations: – removal of press fit components can often be complicated by heavy bone ingrowth, insertion of under-reamed components, or insertion of oversized peripherally oversized cups; – acetabular exposure: … Read more
– See: Transverse Fractures of the Acetabulum – Discussion: – compared to other types of acetabular frx, the T Shaped – Posterior Wall Frx may have the highest prevalence of poor clinical results; – T shaped fractures which are known to be especially … Read more
– Discussion: – indicated for SI joint disruptions and for some sacral fractures; – Operative Technique: – radiographs: – surgical stratedgy: – if anterior pelvic injury: – note that the biggest … Read more
– Discussion: – semitubular Plates are designed in the shape of half tube; – they are only 1 mm thick and have low rigidity; – plate is used only in areas where they are subject to tensile forces; – oval plate holes allow some axial compression if … Read more
– See: Acetabular Component Menu Discussion it is controversial as to whether screws are necessary in THR, and there are relative advantages and disadvantages; cups should be designed with only 2-3 holes so as to maximize the porous coating surface and to minimize conduit for osteolysis; acetabular cup insertion: advantages of screw insertion: theoretically, screw … Read more
– See: – Posterior Pelvic Injuries – Sacral Fractures – cresent fracture: (iliac fracture) – Fixation Techniques: – SI joint dislocation: posterior screw fixation: – Kellum et al 1987, unstable SI joint dislocations can produce long term pain in 60% that are treated non operatively … Read more
– See: Chiari osteotomy – Discussion: – most of these pts will require open reduction; – usually involves open reduction combined with femoral shortening; – femoral shortening: – aids in reduction; – decreases potential complications; … Read more