Table 4

Comparison of Day 4 Range of Movement, TUG and pain scores prior to TUG, for patients with and without a FNC

Functional mobility, Day 4 post operatively

FNC (n = 27)

PCA only (n = 25)

Statistical significance

AROM Flexion Day 4 (degrees)

70.8 ± 17.3*

82.6 ± 15.8

p < .006

Effect size medium, r = .38

AROM Extension Day 4 (degrees)

-11.9 ± 7.0

- 8.38 ± 4.4

p < .040

Effect size small, r = .29

TUG test post op (secs)

45.23 (31, 67)

58.0 (39.5, 71)

NS (outliers removed)

Pain score at TUG test

4.69 ± 2.3

3.67 ± 2.5

NS

Time elapsed since last analgesia at TUG test (hours)

*3.6 ± 1.6

2.0 ± 1.1

p < .003

Effect size medium r = .42

*Mean ± SD, or median (IQR: 25,75), reported according to normality

Fetherston and Ward Journal of Orthopaedic Surgery and Research 2011 6:7   doi:10.1186/1749-799X-6-7