If the previous article was a bit difficult, try this one. Pseudo' means 'false'. Gout - Questions and answers. Crystal arthropathies - A sophisticated article, albeit a bit complicated. TB and the knee - Quite common in third world countries.
Bow legs is called a 'varus deformity' and knock knees a 'valgus deformity'.
Check the section on osteotomy when you have gone through these references. Bow legs in children - Usually ends up curing itself, but some cases may warrant surgical correction. Knock knees and bow legs - Good pictures of wedge osteotomy.