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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

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

Fig. 2

Linear mixed model describing changes in ankle kinematics associated with postoperative improvement in total knee range of motion (ROM). The sloping lines indicate estimated changes in ankle kinematics according to the improvement of total knee ROM. For instance, one patient demonstrated 30° total knee ROM, 5° ankle dorsiflexion at initial contact (a), 20° peak ankle dorsiflexion in the stance phase (b), 15° peak ankle dorsiflexion in the swing phase (c), and 23° dynamic ROM of the ankle (d). If total knee ROM increased to 40° after the knee surgery, estimated ankle dorsiflexion at initial contact, peak ankle dorsiflexion in the stance and swing phases, and dynamic ankle ROM will be 1° (a), 14° (b), 10° (c), and 21° (d)

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