The distal metatarsal angle (DMAA) is a measurement of the relationshi
p between the longitudinal axis of the first metatarsal and the articu
lar surface of the metatarsal head. We measured the DMAA on radiograph
s with and without markers on the articular edges and compared them wi
th measurements of the anatomic specimens. Based on the studies, the s
ignificance of the radiographic measurements to the actual DMAA and th
e normal distribution of the measurement were determined.