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.
Findings Associated With PAIS a
| Overall | |||
|---|---|---|---|
| n (%) | Female, n | Male, n | |
| Anatomic variants at the posterior ankle | |||
| Os trigonum | 5 (8) | 3 | 2 |
| Stieda process | 8 (13) | 4 | 4 |
| Posterior intermalleolar ligament | 31 (50) | 12 | 19 |
| MRI features of PAIS | |||
| Bone marrow edema | |||
| Os trigonum | 2 (3) | 1 | 1 |
| Stieda process | 0 (0) | 0 | 0 |
| Synchondrosis high signal in os trigonum | 2 (3) | 1 | 1 |
| Posterior synovitis | 11 (18) | 4 | 7 |
| Posterior capsular thickening | 6 (10) | 3 | 3 |
MRI, magnetic resonance imaging; PAIS, posterior ankle impingement syndrome.
