Not sure exactly what's wrong. It could be from the initial injuries or it may have developed metabolic bone disease (MBD).

Is it still eating / interested in food? I'd dust the crickets with calcium at every feeding (without religious supplementation als are very prone to MBD). You'll probably have to hand feed. Make sure your calcium supplement contains vitamin D3 and is phosphorus free (no calcium phosphate etc). Make sure there are no wandering crickets as the dust falls off rapidly (feed only as many crickets as your al can eat in a sitting and remove any uneaten after 15 minutes). I'd also recommend getting a UVB light. This will enable your lizard to synthesize some of its own vitamin D3. Make sure you place it so that it is within the manufacturer's recommended distance from your lizard (usually 10-12 inches).

Good luck,
Alice