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): April 1, 2005 ©2005 by The Journal of Bone and Joint Surgery, Inc.
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: ©2005 by The Journal of Bone and Joint Surgery, Inc.
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: ©2005 by The Journal of Bone and Joint Surgery, Inc.
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: ©2005 by The Journal of Bone and Joint Surgery, Inc.
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: ©2005 by The Journal of Bone and Joint Surgery, Inc.
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: ©2005 by The Journal of Bone and Joint Surgery, Inc.
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: ©2005 by The Journal of Bone and Joint Surgery, Inc.