8 days post op ALIF/PSIF T10-S1. They say sit no more than 40", but what then? How long can one stand? Admittedly by end of day I'm racked with sitting/muscle pain from brace restrictiveness, but what alternatives are there to sitting? Fatigue easily when standing more than 10min, and what can be done standing? Walking with a walker is limited to lack of flat space outdoors, small house. Wondering if anyone has tried the old ergonomic forward knee resting chairs to relieve pain on lower back. All suggestions welcome.