Fig. (1a).
Plain radiograph taken at the onset of severe right hip joint pain showing KL grading I hip OA. Joint space narrowing is seen in the right hip joint (black arrows).
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.