الفهرس 
Radiological AnatomyOnly 14 pages are availabe for public view
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Abstract
Background: Hip arthroplasty is a common and effective operation with a high success rate. The purpose of this thesis is to demonstrate the role of computed radiography and multi-slice CT imaging in the assessment of the complicated hip arthroplasty.
Results: In our study we compare between DR and CT findings in symptomatic cases in 30 patient who presented post-operative hip arthroplasty whether immediate or delayed post-operative in order to direct the patient and clinician to optimum method of radiological examination. CT examination added a new findings to the radiography as it detected 1 case of osteolysis not detected by radiography, it also detected 1 case of fracture (medial acetabular fracture), 2 cases of infection, 2 cases of fluid collection and 3 heterotopic ossification. On the other hand finding were the same in both radiography and CT in 5 normal cases, 10 cases of osteolysis, 9 cases of fractures, 2 cases of polyethylene wear, 2 cases of dislocation, 2 cases with heterotopic ossification, 2 cases of protrusion acetabuli and one case of cement herniation.
Conclusions: Postoperatively, serial plain radiographs remain the modality of choice to evaluate patients following arthroplasty. With proper imaging modification techniques, CT with its superior resolution and increased sensitivity can evaluate the joint and surrounding osseous and soft tissue structures. CT scan assess subtle fractures and extent of osteolysis better than radiographs.