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Total knee arthroplasty: postoperative radiologic findings
1Department of Radiology, University of Utah School of Medicine, Salt Lake City 84132, USA.
AJR. American Journal of Roentgenology
|October 1, 1995
Summary
Modern total knee arthroplasties, or total condylar arthroplasties, closely mimic natural knee function, achieving a 90% success rate. This review details their normal imaging and complication findings.
Area of Science:
- Orthopedic surgery
- Medical imaging
Background:
- Early total knee arthroplasties (TKAs) had high failure rates due to design flaws.
- Current total condylar arthroplasties (TCAs) offer improved anatomical replication, motion, and stability.
Purpose of the Study:
- To describe the typical imaging presentation of TCAs.
- To outline radiographic findings associated with TCA complications.
Main Methods:
- Review of literature on TCA imaging and complications.
- Description of normal radiographic anatomy and biomechanics.
Main Results:
- TCAs achieve 90% success over 10 years, cemented or uncemented.
- Normal imaging includes specific anatomical and motion parameters.
- Common complications have distinct radiographic signs.
Conclusions:
- TCAs represent a significant advancement in knee replacement surgery.
- Understanding normal and abnormal imaging is crucial for managing TCA patients.