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Studies showing TTTG distance measurement.
| Author | Year | Modality | Sample size | Mean TTTG distance | TTTG distance for males | TTTG distance for females |
|---|---|---|---|---|---|---|
| Pandit, Frampton, Stoddart and Lynskey | 2011 | MRI | 100 | 10 ± 1 mm | 9.91 mm (95% CI 8.9–10.8 mm) | 10.04 mm (95% CI 8.9–11.1) |
| Wittstein, Bartlett, Easterbrook and Byrd | 2006 | MRI | 20 | 9.4 ± 0.6 mm | – | – |
