Figure 1From: Quantitative analysis of the reversibility of knee flexion contractures with time: an experimental study using the rat model Study design with internal fixation and spontaneous recovery durations and sample size per group. Angle of extension in rat knee joints for the 24 groups at torque = 12.5 N-cm. *P ≤ 0.05 for difference between the mean ranges of knee extension of contracture versus contralateral knees. All P > .001 identified. #P ≤ 0.05 for gain in knee extension angle after recovery duration half, equal to, double, or quadruple the duration of surgical fixation compared to the previous duration. Error bars = 1 standard error of the mean.Back to article page