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Table 2 Myogenic vs. arthrogenic components of extension deficit (ED). Angles are presented as means ± standard deviation. Contracture is displayed as the difference in extension deficit between intervention group and the respective control

From: A novel rat model of stable posttraumatic joint stiffness of the knee

  Extension deficit (ED) Arthrogenic extension deficit (AED) Myogenic extension deficit (MED)
Group I (n = 9) 95.4° ± 15.1° 74.9° ± 17.0° 20.5° ± 11.9°
Group Ic (n = 6) 43.3° ± 7.4° 19.7° ± 3.4° 23.6° ± 8.1
Contracture 52.1°, p < 0.01 55.2°, p < 0.01 − 3.1°, p = 0.99
Group II (n = 10) 66.6° ± 6.8° 46.0° ± 12.4° 20.6° ± 14.0
Group IIc (n = 6) 41.5° ± 4.9° 20.3° ± 5.6° 21.2° ± 4.8
Contracture 25.1°, p < 0.01 25.7°, p < 0.01 − 0.6°, p = 1.0
Group III (n = 10) 63.5° ± 12.1° 50.1° ± 15.4° 13.4° ± 7.7
Group IIIc (n = 6) 43.7° ± 3.2° 23.6° ± 7.3° 20.1° ± 7.8
Contracture 17.4°, p < 0.01 26.5°, p < 0.01 − 6.7°, p = 0.64