Table II.
Comparision of tibial tuberosity-trochlear groove (TT-TG) in varying flexion angles and weightbearing simulation.
| Author | Year | Knees imaged, n | Sex | Age, yrs, mean (SD) or median (IQR) | Modality | NWB TT-TG 0°, mm (SD) | NWB TT-TG 15°, mm (SD) | NWB TT-TG 30°, mm (SD) | WB TT-TG 0°, mm (SD) | WB TT-TG 30°, mm (SD) |
|---|---|---|---|---|---|---|---|---|---|---|
| Izadpanah 29 | 2013 | 8 | 7 F, 1 M | 35 (7) | MRI | 11.6 (4.4) | N/A | 7.3 (2.9) | 6.3.(3.2) | 4.9 (3.9) |
| Hircshman 30 | 2015 | 26 | 31 F, 28 M | 57 (15.9) | CT | 13.8 (5.1) to 13.9 (3.9) | N/A | N/A | 10.5. (5) to 10.9. (5.2) | N/A |
| Dietrich 31 | 2012 | 30 | 15 F,15 M | 28.7 (5.3) | MRI | 15.1 (3.2) to 14.8 (3.3) | 10.0 (3.5) to 9.4 (3.0) | 8.1 (3.4) to 8.6 (3.4) | N/A | N/A |
| Seitlinger 32 | 2014 | 66 | N/A | 20.5 to 23.1 | MRI | 14 (6) to 10 (3) | 13 (6) to 9 (4) | 12 (6) to 10 (4) | N/A | N/A |
N/A, not applicable; NWB, non-weightbearing; TT-TG, tibial tubercle-trochlear groove; WB, weightbearing.