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Abstract

BACKGROUND:

Prosthetic loosening and infection is a frequent cause of failure of artificial joint replacement, therefore, it is important to distinguish between prosthetic loosening and infection. Because, most of the patients have no typical clinical presentation and the tresting and confirming methods of other laboratories are very limit, radionuclide bone imaging, CT and magnetic resonance imaging and X-ray inspection have become the commonly used method for the diagnosis of prosthetic loosening and infection. But which method can be more effective to check out the lesions, there has been a controversy.

OBJECTIVE:

To analyze the literatures on the radionuclide bone imaging, CT and magnetic resonance imaging and X-ray in the diagnosis of prosthetic loosening and infection after artificial joint replacement, to optimize these methods in order to provide basis for the selection of clinical treatment options and the diagnosis of prognosis.

METHODS:

The literatures on the radionuclide bone imaging, CT and magnetic resonance imaging and X-ray in the diagnosis of prosthetic loosening and infection after artificial joint replacement were selected, and its imaging performance was retrospective analyzed. The advantages and disadvantages of several methods of imaging diagnosis were compared.

RESULTS AND CONCLUSION:

The clinical manifestations of prosthesis loosening and infection after artificial joint replacement are not easy to distinguish, and not yet form the abnormal periprosthetic bone structure in the early loosening of the prosthesis and the periprosthetic smaller translucent band is obscured which affect the X-ray or CT diagnosis, so the diagnosis is often misdiagnosed. In addition, the joint prostheses are mostly metallic materials, and CT or magnetic resonance imaging may form artifacts which also affect the judgment of prosthetic loosening and infection. Radionuclide bone imaging can accurately position and qualitative diagnose the patients with prosthesis loosening and infection after artificial joint replacement, and has more clinical significance in prognosis.

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