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Journal of Experimental Orthopaedics
Fig. 2 | Journal of Experimental Orthopaedics

Fig. 2

From: Definitions and consequences of current alignment techniques and phenotypes in total knee arthroplasty (TKA) – there is no winner yet

Fig. 2

The measured angles: hip–knee–ankle angle (HKA, the angle is formed by the lines connecting the centers of the femoral head, the knee and the talus), femoral mechanical angle (FMA, the angle between the femoral mechanical axis and a tangent to the distal femoral condyles) and tibial mechanical angle (TMA, the angle between the tibial mechanical axis and a tangent to the proximal tibia joint surface). Image reproduced from original work with permission from Prof. Dr. Michael Hirschmann

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