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Table 2 Changes in gait parameters after surgery involving tendons around the knee

From: Influence of surgery involving tendons around the knee joint on ankle motion during gait in patients with cerebral palsy

  Kinematics aReference value in children [15, 16] Preoperative value(°) Postoperative value (°) Changes in parameter after the surgery (°)
Mean value CI P value
Knee Knee flexion at IC 3.4–14.4 31.9 (SD 12.7) 22.8 (SD 9.7) −9.1 (SD 14.1) −12.9 – −5.3 < 0.001
Peak knee flexion during swing 55.6–61.6 55.4 (SD 14.3) 58.3 (SD 11.0) 2.9 (SD 16.1) −1.5 – 7.2 0.194
Total knee ROM 46.8–57.2 38.9 (SD 14.0) 50.2 (SD 11.4) 11.2 (SD 14.6) 7.3–15.2 < 0.001
Minimum knee flexion in the stance 7.6 16.5 (SD 14.9) 5.1 (SD 1.5) −8.4 (SD 16.8) −12.9 – −3.8 0.001
Ankle Ankle dorsiflexion at IC 4.2 4.8 (SD 19.8) 3.5 (SD 8.7) −1.2 (SD 19.5) −6.5 – 4.0 0.641
Peak ankle dorsiflexion during stance 9.0–14.8 21.6 (SD 21.2) 18.6 (SD 8.2) −3.0 (SD 20.3) −8.5 – 2.5 0.277
Peak ankle dorsiflexion during swing 2.1–5.6 17.2 (SD 9.8) 15.2 (SD 7.3) −2.0 (SD 10.2) −4.8 – 0.7 0.142
Dynamic ROM of the ankle 26.6–31.7 14.9 (SD 25.2) 11.5 (SD 7.5) −3.4 (SD 22.7) −9.6 – 2.7 0.269
  1. aReference value in children is the range of mean values of previous studies