Can you grow taller (post puberty) via microfractures?

Basically. Doing a session of jumping, sprinting, squats, etc before bed then stretching your legs via ankle weights over the bed or tying an elastic band to your ankles to stretch your legs. This stretches the microfractures to create length in the bone.

Plastic deformation occurs after the yield point, yield point on a stress strain curve is the point at which elastic deformation ends and plastic deformation begins, up to the yield point, bone behaves elastically, it deforms under stress but returns to its original shape when the stress is removed.
Beyond the yield point, bone enters the plastic region where deformation becomes permanent, and the bone does not fully recover its original shape, even after unloading.

When a long bone (mainly tibia for us) is subjected to axial tensile loading with something like OTB (over the bed stretching) it experiences longitudinal tension along its diaphyseal axis, this longitudinal tensile loading predisposes cortical bone to microcrack expansion because there is a favorable alignment of structural weaknesses which requires Low resistance to crack advancement, and decreased
effectiveness of extrinsic toughening mechanisms like crack bridging or deflection.