Complications of hip arthroplasty simulating pelvic or bladder pathology: sonographic and radiographic findings.
BACKGROUND
The purpose of this paper was to describe the imaging features of intrapelvic complications of total hip arthroplasty.


METHODS
The clinical presentation, ultrasound, and radiographic findings of three cases were reviewed.


RESULTS
Intrapelvic extrusion of cement or medial migration of prosthetic hardware caused extrinsic compression of the bladder.


CONCLUSIONS
Intrapelvic complications due to the mechanical effects of total hip arthroplasty are rare but may simulate intrinsic pelvic or bladder pathology on sonography. Plain radiographs and contrast studies provide clues to the correct diagnosis.
Department of Medical Imaging, University of Toronto, Ontario, Canada.
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D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D005260:Female; D006801:Humans; D008875:Middle Aged; D017699:Pelvic Pain / Q000175:diagnosis; D011183:Postoperative Complications / Q000175:diagnosis; D001745:Urinary Bladder Diseases / Q000175:diagnosis*