Table 4

Sagittal plane gait characteristics of hip osteoarthritis patients with MJS ≤/>2.0 mm
MJSa≤2.0 mm(n=28) MJSa>2.0 mm(n=20) MEAN DIFFERENCE(95% CI) P-VALUE(TEST USED)
Mean SD Mean SD
VELOCITY (m/sec) 1.56 0.122 1.50 0.159 −0.05 (−0.138 to 0.033) 0.223(□)
KINEMATIC PARAMETERS (°)
Hip excursion 35.5 8.03 40.0 6.76 −4.5 (−8.95 to −0.08) 0.046(□)
Knee excursion 42.5 6.26 39.3 5.40 3.3 (−0.24 to 6.74) 0.067(□)
Ankle excursion 19.3 3.48 20.7 4.20 −1.5 (−3.72 to 0.76) 0.190(□)
Initial contact
 Hip joint angle 28.7 5.53 29.7 4.65 −1.0 (−4.04 to 2.07) 0.520(□)
 Knee joint angle 3.2 4.17 2.8 3.48 0.4 (−1.87 to 2.73) 0.709(□)
 Ankle joint angle −0.4 3.09 1.6 3.00 −2.0 (−3.83 to −0.23) 0.028(□)
Midstance
 Hip joint angle 6.9 5.24 5.7 5.41 1.2 (−1.89 to 4.37) 0.431(□)
 Knee joint angle 12.1 3.85 9.2 4.46 2.9 (0.46 to 5.30) 0.021(□)
 Ankle joint angle 4.3 2.58 3.21 3.2 0.8 (−0.87 to 2.50) 0.336(□)
Peak hip extension
 Hip joint angle −6.8 7.41 −10.3 7.60 3.5 (−0.88 to 7.94) 0.114(□)
 Knee joint angle 22.9 8.34 17.2 6.94 5.7 (1.09 to 10.28) 0.016(□)
 Ankle joint angle 6.4 4.11 6.8 4.76 −0.4 (−2.94 to 2.23) 0.782(□)
Toe-off
 Hip joint angle −1.6 6.26 −4.3 6.55 2.7 (−1.04 to 6.5) 0.152(□)
 Knee joint angle 45.7 4.81 42.1 5.22 3.6 (0.74 to 6.62) 0.015(□)
 Ankle joint angle −12.8 4.97 −13.9 3.69 1.1 (−1.53 to 3.77) 0.398(□)
KINETIC PARAMETERS (Nm/BWb)
Initial contact
 Hip joint moment −0.189 0.0609 −0.220 0.0813 0.031 (−0.0111 to 0.0714) 0.149(□)
 Knee joint moment −0.127 0.0338 −0.147 0.0431 0.020 (−0.0036 to 0.0411) 0.098(□)
 Ankle joint moment −0.004 0.0143 −0.007 0.0102 0.003 (−0.0038 to 0.0112) 0.092(○)
Midstance
 Hip joint moment −0.119 0.0874 −0.083 0.0811 −0.036 (−0.8631 to 0.1371) 0.431(□)
 Knee joint moment −0.037 0.0769 −0.037 0.0912 0.000 (−0.4901 to 0.4896) 0.452(○)
 Ankle joint moment −0.304 0.1142 −0.274 0.0863 −0.029 (−0.0908 to 0.0311) 0.315(○)
Peak hip extension
 Hip joint moment 0.235 0.1419 0.352 0.1465 −0.117 (−0.2022 to −0.0327) 0.001(○)
 Knee joint moment 0.076 0.0771 0.075 0.0707 0.001 (−0.0428 to 0.4497) 0.961(□)
 Ankle joint moment −0.539 0.1450 −0.601 0.1667 0.062 (−0.0307 to 0.1544) 0.186(□)
Toe-off
 Hip joint moment 0.225 0.0579 0.227 0.0587 −0.002 (−0.0364 to 0.0322) 0.903(□)
 Knee joint moment 0.058 0.0174 0.057 0.0227 0.001 (−0.0103 to 0.1296) 0.822(□)
 Ankle joint moment 0.009 0.0087 0.007 0.0073 0.002 (−0.0029 to 0.0067) 0.432(□)

a: Minimal joint space.

b:Newton meter/body weight.

: Student’s t-test.

: Welch’s t-test.

: Mann–Whitney U-test.

Eitzen et al.

Eitzen et al. BMC Musculoskeletal Disorders 2012 13:258   doi:10.1186/1471-2474-13-258

Open Data