1. Ultrasound Measurements of Torsions in the Tibia and Femur by David Hudson, Todd Royer, and James Richards J Bone Joint Surg Am Volume 88(1):138-143 January 1, 2006 ©2006 by The Journal of Bone and Joint Surgery, Inc.

2. Photograph showing the distal end of the tibia as seen during the anatomical measurements. David Hudson et al. J Bone Joint Surg Am 2006;88:138-143 ©2006 by The Journal of Bone and Joint Surgery, Inc.

3. Photograph showing the position of the ultrasound transducer equipped with the inclinometer during the in vitro measurement of the distal part of the tibia. David Hudson et al. J Bone Joint Surg Am 2006;88:138-143 ©2006 by The Journal of Bone and Joint Surgery, Inc.

4. Photograph showing the position of the transducer/inclinometer during the in vivo measurement of femoral torsion. David Hudson et al. J Bone Joint Surg Am 2006;88:138-143 ©2006 by The Journal of Bone and Joint Surgery, Inc.

5. Photograph showing the position of the transducer/inclinometer during the in vivo measurement of distal tibial torsion. David Hudson et al. J Bone Joint Surg Am 2006;88:138-143 ©2006 by The Journal of Bone and Joint Surgery, Inc.