Final answer:
Range of motion exercises are typically the leading therapy for lateral tibial torsion, aiming to improve flexibility and strength without the need for surgery. Surgical options such as a tibial osteotomy are less common and used in severe cases.
Step-by-step explanation:
The optimal management for lateral tibial torsion generally involves non-surgical treatments, especially in children, where there is a potential for spontaneous resolution as they grow. Such treatments usually involve range of motion exercises designed to improve flexibility and strength in the leg and foot. Therefore, the correct answer to the student's question is option 4) Range of motion exercises. This approach typically integrates exercises that help in stretching and strengthening the muscles around the tibia to improve alignment and function. In more severe cases, or if non-surgical methods fail, a tibial osteotomy may be considered, but this is much less common and typically reserved for adults with significant deformity or discomfort that impairs daily activities.