Saber shin is a malformation of the
tibia
The tibia (; ), also known as the shinbone or shankbone, is the larger, stronger, and anterior (frontal) of the two bones in the leg below the knee in vertebrates (the other being the fibula, behind and to the outside of the tibia); it connects ...
. It presents as a sharp
anterior bowing, or convexity, of the tibia.
__TOC__
Causes
Periosteal reaction along the shaft of the tibia.
It can result from congenital
syphilis,
yaws
Yaws is a tropical infection of the skin, bones, and joints caused by the spirochete bacterium ''Treponema pallidum pertenue''. The disease begins with a round, hard swelling of the skin, in diameter. The center may break open and form an ulce ...
,
Paget's disease of bone
Paget's disease of bone (commonly known as Paget's disease or, historically, osteitis deformans) is a condition involving cellular remodeling and deformity of one or more bones. The affected bones show signs of dysregulated bone remodeling at the ...
,
vitamin D deficiency
Vitamin D deficiency or hypovitaminosis D is a vitamin D level that is below normal. It most commonly occurs in people when they have inadequate exposure to sunlight, particularly sunlight with adequate ultraviolet B rays (UVB). Vitamin D defic ...
or
Weismann-Netter–Stuhl syndrome. It can be due to
osteomalacia
Osteomalacia is a disease characterized by the softening of the bones caused by impaired bone metabolism primarily due to inadequate levels of available phosphate, calcium, and vitamin D, or because of resorption of calcium. The impairment of bon ...
.
Prognosis
The bone looks like a boomerang from an early age.
Etymology
Saber refers to the tibia's resemblance to the curve of a
saber
A sabre (French: sabʁ or saber in American English) is a type of backsword with a curved blade associated with the light cavalry of the early modern and Napoleonic periods. Originally associated with Central European cavalry such as the ...
sword.
See also
*
Saddle nose
Saddle nose is a condition associated with nasal trauma, congenital syphilis, relapsing polychondritis, granulomatosis with polyangiitis, cocaine abuse, and leprosy, among other conditions. The most common cause is nasal trauma. It is characteri ...
*
List of cutaneous conditions
*
Rickets
Rickets is a condition that results in weak or soft bones in children, and is caused by either dietary deficiency or genetic causes. Symptoms include bowed legs, stunted growth, bone pain, large forehead, and trouble sleeping. Complications ma ...
References
Bibliography
* Mosby's Medical, Nursing, & Allied Health Dictionary. Edition 5, 1998 p7B49.
Musculoskeletal disorders
Bacterium-related cutaneous conditions
Syphilis
{{Cutaneous-infection-stub