Table 1.
Journey Bi-Cruciate Stabilised (BCS) knee system fluoroscopy data [12]
| Stair climbing | Chair rising/sitting | Step up/down | |
|---|---|---|---|
| AP medial CP (mm) | 9.7 (−6.0 to 3.7) ± 3.0 | 10.0 (−7.7 to 2.3) ± 2.6 | 6.9 (−7.4 to ±0.5) ± 3.5 |
| AP lateral CP (mm) | 14.3 (−10.6 to 3.5) ± 3.5 | 18.5 (−15.3 to 3.1) ± 3.0 | 13.9 (−10.8 to 3.1) ± 3.8 |
| AP medial CP (% tibia size) | 23.3 (35.2 to 58.5) ± 6.4 | 23.0 (32.9 to 55.9) ± 6.1 | 16.5 (32.1 to 48.6) ± 7.7 |
| AP lateral CP (% tibia size) | 32.7 (25.1 to 58.8) ± 8.0 | 43.8 (14.0 to 57.8) ± 6.5 | 33.3 (23.6 to 56.9) ± 9.0 |
| AP medial CP (% tibia size) | |||
| At maximum extension | 58.5 ± 4.8 | 55.9 ± 7.9 | 48.7 ± 7.9 |
| At maximum flexion | 38.9 ± 5.9 | 35.8 ± 5.6 | 33.9 ± 6.5 |
| AP lateral CP (% tibia size) | |||
| At maximum extension | 57.3 ± 7.3 | 57.8 ± 6.7 | 55.4 ± 11.0 |
| At maximum flexion | 25.6 ± 6.3 | 14.2 ± 4.7 | 23.8 ± 7.6 |
| Range of contact-line internal rotation | 13.0 (5.6 to 21.6) ± 4.0 | 15.8 (7.3 to 21.7) ± 4.4 | 15.2 (7.9 to 26.2) ± 5.7 |
| Contact-line rotation (+ internal) | |||
| At maximum extension | 4.0 ± 1.0 | 4.2 ± 5.3 | 5.1 ± 8.0 |
| At maximum flexion | −6.5 ± 4.8 | −11.0 ± 6.0 | −10.0 ± 5.6 |
| Medial PFR (mm) | 8.5 ± 2.0 | 8.9 ± 3.5 | 5.6 ± 3.4 |
| Lateral PFR (mm) | 14.3 ± 3.4 | 18.5 ± 2.6 | 13.9 ± 3.2 |
Mean ± standard deviation, range (in parentheses). Translations in percentage and contact-line rotations are values at 0° and maximum flexion
AP anteroposterior, CP contact points, PFR posterior femoral rollback