Objective
To evaluate the therapeutic effect of the tibia counter rotator orthosis for tibial internal torsion children. Method: The 16 limbs included in this study were both lower extremities of 6 subjects and unilateral ones of 4 subjects (7 female and 3 male), ranging in age from less than 3 year to 11 years. These subjects were diagnosed as in-toeing gait with tibial internal torsion and had no history of forefoot adductus or other musculoskeletal abnormality. Tibial torsion was evaluated by thigh-foot angle and computed tomography before and after applying the Tibia Internal BraceⰒ (TIBⰒ). Results: Thigh-foot angle and computed tomography showed significant improvement of tibial internal torsion before and after applying the TIBⰒ (p<0.05). There was no significant correlation between duration of the TIBⰒ application and improvement of tibial internal torsion (p>0.05). And there was no significant correlation between age and improvement of tibial internal torsion (p>0.05). Conclusion: TIBⰒ was effective for in-toeing gait children with tibial internal torsion. (J Korean Acad Rehab Med 2009; 33: 470-476)