PMC5299169_01
Presurgery anterior and medial radiographs (a) and coronal and sagittal MRIs (b) of the affected left knee.
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fig1
A 26-year-old male (height: 1.93 m; weight: 95 kg) presented with neutral limb alignment, painful tibiofemoral kissing lesions, and severe knee OA-related activity limitations due to pain in the left knee of one-year duration (Kellgren-Lawrence grade 2) (Figure 1).
The assembled Atlas Knee System, designed to reduce loading on the affected medial compartment of the knee joint, consists of a load absorber located between femoral and tibial bases.
CRIOR2017-5020619.002.jpg
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fig2
The Atlas System consists of a cylindrical, polycarbonate urethane (PCU) load absorber located between femoral and tibial bases (Figure 2).