Many children consult doctors because their guardians are worried about their children's TF angle. Knowing the average range of knee angle is of utmost importance to avoid unnecessary radiation therapy and therapeutic procedure (orthotics or braces). The reassurance of the attending physician helps alleviate the stress of parents worried about seeing their children “bow their knees”. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay TF angles across different age groups differ and ethnic variations are likely to be present. The physician must be aware of these variations in their local population to create applicable treatment options. There are many studies regarding the normal development of knee angle in Nigerian, Korean and Turkish children. Several methods have been used to measure TF angles in children. Commonly used radiographic methods are time-consuming and pose ethnic problems related to unnecessary radiation exposure in children. In addition, malrotation of the limb, if not taken into account, can lead to significant errors in the TFA measurement. Clinical methods for measuring TF angles are acceptable and reproducible, with the advantage of being inexpensive and radiation-free. We used fixed bone points to calculate TFA as well as ICD and IMD using a goniometer. Palpation of fixed bony landmarks is practical and easy. Additionally, measurements are less likely to be erroneous, even in obese children and in children with marked femoral curvature, which could rule out the exact location of the femur. The development of TFA could be divided into three phases: the first phase, during which the knee alignment changes from physiological infantile varus to maximal valgus; second phase, when the valgus knee alignment decreases in quantity; and the third phase, during which the knee alignment remains stationary. Regardless, the age ranges at which these phases occur in children are found to be varied among children of different ethnic groups. In our present study, we found that none of the subjects tested negative. TFA in the 2-year age group, the average TFA was positive in Saudi children even at the age of 2 years. This was in contrast to the findings of the larger study by Cheng et al. In the Chinese population, which reported a mean varus TFA at the age of 2 years. the authors noted a rapid decline in mean IMD in Chinese children, reaching 0 cm at age 8 years, with a normal range of ±3 cm. Conversely, we observed that ICD and IMD varied with age. We also found that the maximum mean TFA (9.70) was observed in the age range between 13 years, while in boys the maximum mean TFA (11.75) was observed in the same age range. age. Subsequently, the average TFA stabilized between 5 and 9 in most children. Saudi girls had a maximum valgus of 18° recorded in normal girls at ages 5 and 8, and in normal boys at 8 years. Our results were contrary to those of Oginni et al. , who estimated the knee angles of 2,036 normal Nigerian children aged less than 12 years. In their study, they noted the huge proportion of flexed (varus) knees during the first 6 months. Between 21 and 23 months, the distribution of angles became strongly bimodal: approximately half in varus and the other half in valgus (knock-knee). After this it was noted that the knee angle was valgus.