Saber shin
Saber shin is a malformation of the tibia. It presents as a sharp anterior bowing, or convexity, of the tibia.

Causes
Periosteal reaction along the shaft of the tibia.
It can result from congenital syphilis, yaws, Pagets disease of bone, vitamin D deficiency or Weismann-Netter–Stuhl syndrome. It can be due to osteomalacia.

Prognosis
Etymology
Saber refers to the tibias resemblance to the curve of a saber sword.

See also
Saddle nose
List of cutaneous conditions
Rickets

References
Bibliography
Mosbys Medical, Nursing, & Allied Health Dictionary.  Edition 5, 1998 p7B49.