Conversation so far:
Any interesting information?
Berry overcame several physical ailments during his football career, a fact he became famous for.
What were some of his ailments?
bruised nerves near the sacroiliac joint occasionally caused misalignment in his back, which in turn affected his legs.
How did it affect his legs?
caused one to become slightly shorter; it was not a permanent condition.

Question: How was it fixed?
Self-contained rewrite: How were Raymond Berry's legs fixed?