I recently sold a home that had some basement problems.  The seller and I were aware that the rear wall had bowed and probably needed support.  I called our basement specialist and he confirmed our diagnosis.  He also showed us the front wall had moved and also needed support.  
 I see all sorts of amateur attempts of reinforcing basement walls.  I've seen angle irons, bed rails, 4" wide carbon fiber glued to the walls and one basement actually had wood 2x4s!  The proper way is to use 4" I-beams set on the foundation and torqued and bolted to the floor joists.  
 The best way to maintain basement walls is to keep a positive slope draining water away from the house and don't allow tree roots to put pressure on the walls.  (Cheri, that's why I keep pruning your red bud  and river birch tree that you planted too close to our house... well that and I don't want leaves in the gutters.  I just cringe seeing you up on that ladder cleaning gutters!)