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Published on: March 23, 2019
[Roentgenographic stereogrammetric analysis after total knee arthroplasty]
1Ortopaedkirurgisk Klinik 2161, Rigshospitalet, DK-2100 København Ø. m.therbo@tdcspace.dk
Ugeskrift for Laeger
|March 13, 2009
Summary
Marker-based roentgenographic stereogrammetric analysis (RSA) remains the most reliable method for measuring orthopaedic implant migration. Future standardization and routine use in Danish orthopaedic units are recommended.
Area of Science:
- Orthopaedic biomechanics
- Medical imaging analysis
Context:
- Roentgenographic stereogrammetric analysis (RSA) was introduced in 1974.
- Marker-based RSA is a highly accurate technique for measuring 3D orthopaedic implant migration.
Purpose:
- To review the evolution and current status of RSA techniques.
- To highlight the reliability of marker-based RSA and the need for standardization.
Summary:
- Novel RSA techniques (model-based, image-based, fluoroscopic) have emerged, some validated.
- Marker-based RSA is currently the most reliable method.
- A standardization protocol for RSA studies is necessary.
Impact:
- Recommends routine use of RSA for implant testing in selected Danish orthopaedic units.
- Highlights the importance of accurate implant migration measurement for patient outcomes.