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A new and simple method for patellar height measurement: Fibula-condyle-patella angle
Fatih Günaydin, Öner Kilinç, Mahmud Aydin1
1Haseki Eğitim ve Araştırma Hastanesi, Ortopedi ve Travmatoloji Kliniği, 34096 Fatih, İstanbul, Türkiye. mahmut_aydn@windowslive.com.
Joint Diseases and Related Surgery
|May 10, 2024
Summary
The fibula-condyle-patella angle demonstrates excellent inter-observer reliability for patellar height measurement, outperforming other common techniques. This finding supports its clinical use and future research into reference values.
Area of Science:
- Orthopedic surgery
- Radiographic imaging analysis
Background:
- Accurate patellar height measurement is crucial for diagnosing and managing knee conditions.
- Various radiographic techniques exist, but their inter-observer reliability can vary.
Purpose of the Study:
- To assess the inter-observer reliability of the fibula-condyle-patella angle (FCPA) for patellar height measurement.
- To compare the FCPA method with Insall-Salvati, Caton-Deschamps, Blackburne-Pell, and plateau-patella angle (PPA) techniques.
Main Methods:
- Retrospective analysis of 108 knee lateral radiographs (30° flexion).
- Measurements performed by two blinded orthopedic surgeons using five different techniques.
- Inter-observer reliability assessed using concordance correlation coefficients.
Main Results:
- The fibula-condyle-patella angle exhibited the highest inter-observer concordance.
- Insall-Salvati showed the second-highest concordance.
- Plateau-patella angle (PPA) demonstrated the highest concordance correlation between the two researchers.
Conclusions:
- The fibula-condyle-patella angle is a reliable and reproducible method for measuring patellar height.
- This technique shows promise for clinical application and warrants further research for establishing reference values.
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