1. An Association Between Functional Second Metatarsal Length and Midfoot Arthrosis by James S. Davitt, Nancy Kadel, Bruce J. Sangeorzan, Sigvard T. Hansen, Sarah K. Holt, and Emily Donaldson-Fletcher J Bone Joint Surg Am Volume 87(4):795-800 April 1, 2005 ©2005 by The Journal of Bone and Joint Surgery, Inc.

2. The length of the first metatarsal is measured from A to B and the length of the second metatarsal is measured from C to D on this anteroposterior radiograph of the foot. James S. Davitt et al. J Bone Joint Surg Am 2005;87:795- 800 ©2005 by The Journal of Bone and Joint Surgery, Inc.

3. The technique for measurement of the intermetatarsal angle on a weight-bearing anteroposterior radiograph of the right foot of a patient in the study group. James S. Davitt et al. J Bone Joint Surg Am 2005;87:795- 800 ©2005 by The Journal of Bone and Joint Surgery, Inc.

4. Schematic diagram of the measurement of the functional lengths of the first and second metatarsals. James S. Davitt et al. J Bone Joint Surg Am 2005;87:795- 800 ©2005 by The Journal of Bone and Joint Surgery, Inc.

5. Graph showing the greater functional length of the second metatarsal compared with that of the first metatarsal ([functional second metatarsal length × 100]/first metatarsal length). James S. Davitt et al. J Bone Joint Surg Am 2005;87:795- 800 ©2005 by The Journal of Bone and Joint Surgery, Inc.

6. Graph showing the length of the first metatarsal as a percentage of the length of the fourth metatarsal ([first metatarsal length × 100]/fourth metatarsal length). James S. Davitt et al. J Bone Joint Surg Am 2005;87:795- 800 ©2005 by The Journal of Bone and Joint Surgery, Inc.

7. Graph showing the length of the second metatarsal as a percentage of the length of the fourth metatarsal ([second metatarsal length × 100]/fourth metatarsal length). James S. Davitt et al. J Bone Joint Surg Am 2005;87:795- 800 ©2005 by The Journal of Bone and Joint Surgery, Inc.