Periprosthetic Fractures Workup
- Author: Steven I Rabin, MD; Chief Editor: Jason H Calhoun, MD, FACS more...
Laboratory Studies
- No special laboratory studies are required for most periprosthetic fractures. A sedimentation rate and CBC count with differential is useful if infection is suspected.
Imaging Studies
- Radiographs of the entire bone are required to assess the condition of the joint above and below the fracture, condition of the implant, presence of deformity or lesions that may influence surgical options, and axial alignment of the bone. Two views perpendicular to each other, most often an anteroposterior (AP) and lateral view of the bone, are always required.
- CT scan and MRI have limited use because of scatter artifact caused by the metallic implant. Bone scans are not specific.
Diagnostic Procedures
- Aspiration of a failed joint replacement may help if infection is suspected.
Histologic Findings
Biopsy at the time of surgery is indicated if pathologic fracture or infection is suspected.
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