Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The relationship between the anterior pelvic plane (APP) angle and the number of measurement errors greater than 2.5° is shown. When the APP angle was within ± 5°, the number of measurement errors was substantially less than when the APP angle was within ± 10° to ± 20°.
