Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 .
From: Patellar mobility can be reproducibly measured using ultrasound
Mean ± SD | ICC (95 % CI) | Mean difference | Limits of agreement | ||
|---|---|---|---|---|---|
Intra-observer | Day 1 | Day 2 | |||
Patella–tuberosity distance (mm) | |||||
Rest | 44.2 ± 5.3 | 44.4 ± 5.2 | 0.99 (0.96–1.00) | −0.22 | −1.88 to 1.43 |
Contraction | 47.3 ± 5.4 | 47.5 ± 4.7 | 0.98 (0.94–1.00) | −0.2 | −2.1 to 1.8 |
Patellar mobility (mm) | 3.1 ± 1.2 | 3.1 ± 1.2 | 0.97 (0.91–0.99) | 0.03 | −0.55 to 0.61 |
Mean ± SD | ICC (95 % CI) | Mean difference | Limits of agreement | ||
|---|---|---|---|---|---|
Interobserver | Observer 1 | Observer 2 | |||
Patella–tuberosity distance (mm) | |||||
Rest | 44.2 ± 5.3 | 44.0 ± 5.2 | 0.98 (0.93–0.99) | 0.2 | −2.2 to 2.5 |
Contraction | 47.3 ± 5.4 | 47.1 ± 5.4 | 0.98 (0.94–0.99) | 0.2 | −2.0 to 2.3 |
Patellar mobility (mm) | 3.1 ± 1.2 | 3.1 ± 0.9 | 0.93 (0.77–0.98) | 0.02 | −0.82 to 0.85 |