Correction of posture, medications, and external fixation braces are considered for minor deformities and during growth and development. Pathological deformity, developmental maturity, should be timely surgical treatment.
O-shaped leg, i.e. “knee inversion”, refers to the deformity in which the inner ankles of the two feet can touch each other when the two lower limbs are naturally straightened or standing, while the two knees can not be close to each other as the main manifestation of the deformity.
Heredity and calcium deficiency are the main causes of the deformity, while the more direct causes are related to the posture of sitting, standing and walking on weekdays, such as walking with an outward bow, wearing high-heeled shoes for a long time, sitting in a tray, kneeling and other postures that pull the lateral collateral ligament of the knee joint to make it loose, and then the relatively large force of the medial collateral ligament of the knee joint pulls the tibia bone inwardly rotating, resulting in the occurrence of “inversion of the knee”.
With the improvement of smoothness in the physiological process, the correction of posture, calcium and vitamin D supplementation, the slight angulation can be corrected.
If O-shaped leg is combined with other diseases such as rickets, trauma, inflammation, etc., if the distance between the inner knee or inner ankle joints of the two feet is more than 3cm, or if the walking is unstable, or if the two legs often touch each other and are prone to fall, then it is necessary to consider that the skeleton is pathologically angular deformity, and the patient is in the period of growing up and development, and can consider the treatment of external fixation frame.
If the patient is already mature or the bones are already fully developed, osteotomy surgery is needed, together with functional exercise and rehabilitation treatment to correct O-shaped legs.
The correction of O-shaped leg needs to be considered in conjunction with the degree of deformity and whether it is during the growth and development period, and the choice of postural correction, medication, external fixation brace treatment, and if necessary, surgical treatment.