Journal: Journal of Experimental Orthopaedics
Article Title: Speaking the same language? A direct cartography between functional knee phenotypes and CPAK
doi: 10.1002/jeo2.70801
Figure Lengend Snippet: Distribution of functional knee phenotypes according to the Hirschmann and MacDessi (CPAK) classifications in osteoarthritic (OA) and non‐osteoarthritic (NO) populations. CPAK distributions obtained from the Hirschmann functional phenotype cohort are compared with those reported in the original CPAK cohort (MacDessi) in NO and OA populations. Four attribution strategies were applied: mean, using the central FMA and TMA values; interval, considering the full angular ranges (±1.5°) of each phenotype; stochastic, using Monte Carlo sampling within these intervals; and rare, selecting CPAK types located at the margins of the compatible aHKA–JLO space. aHKA, arithmetic hip–knee–ankle angle; CPAK, Coronal Plane Alignment of the Knee; FMA, femoral mechanical angle; JLO, joint line obliquity; TMA, total knee arthroplasty.
Article Snippet: The present study aimed to establish a theoretical mapping between the FKP described by Hirschmann and the CPAK classification by analytically deriving the arithmetic HKA angle and JLO from FMA and TMA.
Techniques: Functional Assay, Sampling