There are isoheight points that measure constant femoral condyle heights along the knee flexion path.
Zhitao RaoChaochao ZhouQidong ZhangWillem A KernkampJianping WangLiming ChengTimothy E FosterHany S BedairGuoan LiPublished in: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA (2020)
IV.