Table 3

Subject characteristics and hip function assessments; hip osteoarthritis patients with MJS ≤/> 2 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
Age (years) 60.0 9.56 57.8 9.46 2.2 (−3.42 to 7.80) 0.437(□)
Height (cm) 173.5 9.36 170.5 6.57 3.0 (−0.02 to 0.08) 0.224(◊)
Weight (kg) 75.3 12.12 70.3 12.03 5.0 (−2.12 to 12.12) 0.164(□)
Body Mass Index 24.9 3.23 24.1 3.48 0.8 (−1.14 to 2.79) 0.404(□)
Target joint MJSa 1.2 0.71 2.9 0.43 −1.7 (−2.08 to −1.37) <0.001(◊)
Harris Hip Score 77.3 8.26 79.5 8.02 −2.2 (−6.98 to 2.65) 0.370(□)
WOMACb
 WOMAC pain 27.7 18.69 22.1 17.07 5.6 (−5.01 to 16.26) 0.272(○)
 WOMAC function 25.9 17.96 17.5 12.76 8.4 (−1.05 to 17.83) 0.152(○)
 WOMAC stiffness 34.5 23.0 28.7 22.96 5.8 (−7.78 to 19.31) 0.305(○)
HIP ROM (°)
 Flexion 117.7 17.46 126.7 16.58 −9.0 (−19.01 to 1.14) 0.081(□)
 Extension −0.3 7.95 2.5 9.32 −2.8 (−7.84 to 2.23) 0.267(□)
 Abduction 21.5 10.68 26.3 8.69 −4.8 (−10.55 to −1.13) 0.026(○)
 Adduction 21.9 7.02 25.7 7.49 −3.8 (−8.06 to −0.45) 0.049(○)
 Internal rotation 28.9 14.87 35.9 14.80 −7.0 (−15.84 to 1.65) 0.094(○)
 External rotation 22.0 11.65 27.5 14.17 −5.5 (−12.97 to 2.07) 0.151 □)
Muscle strength (Nm/BW*100c)
 Hip flexion 118.9 43.66 123.2 24.57 −4.3 (−26.07 to 17.53) 0.669(○)
 Hip extension 195.1 82.11 200.2 46.55 −5.1 (−46.20 to 35.89) 0.784(○)
 Knee flexion 90.2 31.69 84.3 22.30 5.9 (−10.84 to 22.57) 0.483(○)
 Knee extension 141.1 43.05 146.9 24.71 −5.8 (−27.47 to 15.85) 0.806(□)

a: Minimal joint space.

b: The Western Ontario and McMaster Universities Osteoarthritis Index.

c: Newton meter/body weight*100.

: 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

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