Total Hip Replacement Complications Radiology

Interactive cases are presented in the menubar to test your knowledge on hipprostheses.

Total hip replacement complications radiology.

This revision rate corresponds to a survival rate of 93 6 after 5 years and 87 1 after 10 years. Potter hg nestor bj sofka cm ho st peters le salvati ea. Total hip arthroplasty tha or total hip replacement thr is an orthopedic procedure that involves the surgical excision of the femoral head and cartilage of the acetabulum and replacement of the joint with articulating femoral and acetabular components. Total hip arthroplasty tha is among the most successful procedures for relieving pain and improving function in the arthritic hip the reported incidence of complications ranges from 6 5 7 6 radiologists must be knowledgeable of the diverse imaging appearances of these complications understand the advantage and limitation of each imaging modality and provide cost effective evaluation.

In total hip replacement the femoral head and stem and the acetabular cup must all be well positioned. Complications of total hip arthroplasty. White lm 1 kim jk mehta m merchant n schweitzer me morrison wb hutchison cr gross ae. Abductor tendons and muscles assessed at mr imaging after total hip arthroplasty in asymptomatic and symptomatic patients.

Features of loosening that can be seen on radiographs are shown in table 30 7. Complications of total hip arthroplasty are common and it is essential for the radiologist to be aware of them in the assessment of radiographs of total hip replacements. It is a commonly performed procedure usually with very good results and return to function. Complications are many and can occur at various time intervals following the initial surgery.

The mean revision rate for total hip arthroplasty tha based on national joint replacement registry datasets from six countries finland sweden norway denmark new zealand and australia is 1 29 revisions per 100 observed component years. Late aseptic loosening is the most common reason for implant failure. Complications of total hip replacement loosening. Considered to be the most common indication for revision surgery 1 2 4.

This overview focusses on the normal findings and complications of cemented versus non cemented hip arthroplasties. Radiography is the primary imaging method for the evaluation of total hip arthroplasty. 1 dept of medical imaging mount sinai hospital and the university health network university of toronto ontario canada. Magnetic resonance imaging after total hip arthroplasty.