From: Radiological anatomy of foramen rotundum and its surgical implications
 | Right side (n = 100) | Left side (n = 100) | MH | p | ||
---|---|---|---|---|---|---|
No. | % | No. | % | |||
FR type | ||||||
 Type 1 | 4 | 4.0 | 3 | 3.0 | 85.0 | 0.758 |
 Type 2A | 12 | 12.0 | 19 | 19.0 | ||
 Type 2B | 46 | 46.0 | 33 | 33.0 | ||
 Type 3 | 38 | 38.0 | 45 | 45.0 | ||
FR position | ||||||
 Lateral position | 3 | 3.0 | 5 | 5.0 | 65.50 | 0.139 |
 Online position | 22 | 22.0 | 27 | 27.0 | ||
 Medial position | 75 | 75.0 | 68 | 68.0 |