Defining the reference range of the Plateau-patella angle in Taiwanese patients with osteoarthritis - PubMed
7 days ago
- #Patellar height
- #Osteoarthritis
- #Plateau-patella angle
- The plateau-patella angle (PPA) is a new method for assessing patellar height, with a currently accepted normal range of 21°-29° established in Western populations.
- Ethnic differences in knee morphology may affect PPA, and no data exists for the Taiwanese population.
- This study aimed to define the reference range of PPA in Taiwanese patients with osteoarthritis using preoperative lateral radiographs of 334 knees undergoing total knee arthroplasty.
- PPA was compared with conventional indices (ISI, CDI, BPI), showing moderate to high correlations.
- A PPA range of 16°-24° (±1 SD) was found to be more appropriate for Taiwanese osteoarthritic patients, differing from the Western range of 21°-29°.
- The study suggests that PPA should be interpreted carefully, considering ethnic differences in knee morphology.