Broken Shin Bone Anatomy
To better understand tibia fracture, it helps to understand the anatomy of the leg.
The entire leg contains four bones:
The thigh contains the largest bone in the body, called the femur. The femur begins at the hip and ends at the knee. The muscles of the thigh control movement of the knee and hip. The patella, or kneecap, protects the front of the knee.
The lower leg contains two long bones, called the tibia and fibula. The muscles of the lower leg control movement of the foot and ankle.
Leg anatomy examples:
- Cullen MC, Roy DR, Crawford AH, Assenmacher J, Levy MS, Wen D. Open fracture of the tibia in children. J Bone Joint Surg Am. 1996 Jul;78(7):1039-47. 
- Francisco AC, Nightingale RW, Guilak F, Glisson RR, Garrett WE Jr. Comparison of soccer shin guards in preventing tibia fracture. Am J Sports Med. 2000 Mar-Apr;28(2):227-33. 
- Jensen A, Dahl S. Stress fracture of the distal tibia and fibula through heavy lifting. Am J Ind Med. 2005 Feb;47(2):181-3. 
- Roder F, Schwab M, Aleker T, Morike K, Thon KP, Klotz U. Proximal femur fracture in older patients--rehabilitation and clinical outcome. Age Ageing. 2003 Jan;32(1):74-80.