Fluoroscopy Knee There is insufficient evidence to support the use of fluoroscopy for the assessment of periprosthetic fractures. MRI Knee Without and With IV Contrast IV contrast is not helpful for CT or MRI assessment of periprosthetic fracture. MRI Knee Without IV Contrast Radiographically occult fractures may be detected on MRI [22] when metal artifact reduction techniques are used. US Knee There is insufficient evidence to support the use of US for the assessment of periprosthetic fractures. WBC Scan and Sulfur Colloid Scan Knee There is insufficient evidence to support the use of In-111 WBC and Tc-99m sulfur colloid studies for the assessment of periprosthetic fractures. Variant 5: Pain after total knee arthroplasty. Measuring component rotation. Additional imaging following radiographs. Malposition of femoral and tibial components may affect patellar alignment [139]. Excessive combined internal rotation of tibial and femoral components has been shown to be associated with patellar complications [139]. Moreover, Berger and Rubash [140] found that the amount of excessive combined internal rotation is directly proportional to the severity of patellofemoral complications. Abdelnasser et al [141] noted an internal rotation of the tibial component in TKA can lead to postoperative extension deficit. 3-Phase Bone Scan Knee There is insufficient evidence to support the use of bone scans for the assessment of rotational alignment of a TKA. CT Arthrography Knee Intraarticular contrast is not helpful in the CT assessment of rotational alignment. CT Knee With IV Contrast IV contrast is not helpful in the CT assessment of rotational alignment. Imaging After Total Knee Arthroplasty CT Knee Without and With IV Contrast IV contrast is not helpful in the CT assessment of rotational alignment.
Imaging After Total Knee Arthroplasty. Fluoroscopy Knee There is insufficient evidence to support the use of fluoroscopy for the assessment of periprosthetic fractures. MRI Knee Without and With IV Contrast IV contrast is not helpful for CT or MRI assessment of periprosthetic fracture. MRI Knee Without IV Contrast Radiographically occult fractures may be detected on MRI [22] when metal artifact reduction techniques are used. US Knee There is insufficient evidence to support the use of US for the assessment of periprosthetic fractures. WBC Scan and Sulfur Colloid Scan Knee There is insufficient evidence to support the use of In-111 WBC and Tc-99m sulfur colloid studies for the assessment of periprosthetic fractures. Variant 5: Pain after total knee arthroplasty. Measuring component rotation. Additional imaging following radiographs. Malposition of femoral and tibial components may affect patellar alignment [139]. Excessive combined internal rotation of tibial and femoral components has been shown to be associated with patellar complications [139]. Moreover, Berger and Rubash [140] found that the amount of excessive combined internal rotation is directly proportional to the severity of patellofemoral complications. Abdelnasser et al [141] noted an internal rotation of the tibial component in TKA can lead to postoperative extension deficit. 3-Phase Bone Scan Knee There is insufficient evidence to support the use of bone scans for the assessment of rotational alignment of a TKA. CT Arthrography Knee Intraarticular contrast is not helpful in the CT assessment of rotational alignment. CT Knee With IV Contrast IV contrast is not helpful in the CT assessment of rotational alignment. Imaging After Total Knee Arthroplasty CT Knee Without and With IV Contrast IV contrast is not helpful in the CT assessment of rotational alignment.