What is coxa vara and coxa valga?
Coxa valga is a deformity due to an increase in the angle between the head and neck of the femur and its shaft (normally 135 degrees). Coxa vara is the opposite: a decreased angle between the head and neck of the femur and its shaft. Coxa vara is usually indicated when the angle is less than 120 degrees.
Can coxa valga be fixed?
In many cases, coxa valga is a symptom of another medical condition. Treating coxa valga should be part of treating the underlying cause. In kids who were born with coxa valga, surgery may correct the condition, but can lead to problems and is typically only done as a last resort.
Is coxa valga serious?
Some cases of coxa valga cause no symptoms and don’t need treatment. Moderate to severe cases are generally treated with physical therapy and the use of canes, walkers, or crutches to make walking easier.
What does coxa vara mean?
Coxa vara is an unusual hip condition in which there is a discrepancy of growth in the round ball of the hip (femoral head) and the upper end of the thigh bone. This discrepancy leads to a shepherd’s crook deformity of the hip.
What happens in coxa valga?
Coxa valga occurs when the angle formed between the neck of the femur and its shaft (also known as the caput-collum-diaphyseal (CCD) angle or the femoral angle of inclination) is increased beyond >140º. Normal is between 125-135º in adults, but can be 20-25º greater at birth and 10º greater in children.
How does coxa valga effect on knee?
Coxa valga can be associated with genu varum and lead to increased stress and early degenerative changes in the medial compartment of the knee.
How is coxa valga diagnosed?
Coxa valga Diagnosis Your doctor will manipulate your hip in many positions and check to be sure that both of your legs are even in length. X-ray imaging will also be necessary to observe joint angle and make appropriate measurements.
What is the effect of coxa vara in hip joint?
Coxa vara is a deformity of the hip, whereby the angle between the head and the shaft of the femur is reduced to less than 120 degrees. This results in the leg being shortened and the development of a limp. It may be congenital and is commonly caused by injury, such as a fracture.
What does coxa vara cause?
Does coxa vara cause knee valgus?
Operative correction of coxa vara acutely moves the mechanical axis farther laterally, causing the occult genu valgum to become clinically apparent.
What happens in COXA Valga?
How do you measure coxa vara?
Measurements used to define the degree of coxa vara are the head-shaft angle, neck-shaft angle, and Hilgenreiner-epiphyseal (H-E) angle. The head-shaft angle is a more reproducible measurement of varus deformity than the neck-shaft angle for severely deformed hips.
What does coxa valga mean in radiography?
Plain radiograph. Coxa valga occurs when the angle formed between the neck of the femur and its shaft (also known as the caput-collum-diaphyseal (CCD) angle or the femoral angle of inclination) is increased beyond >140º.
What is the incidence of coxa vara and coxa valga?
Due to the low incidence of coxa vara and even lower for coxa valga, there is little literature currently available. There are 3 types Coxa Vara, acquired, congenital and developmental, usually displaying greater acetabular dysplasia and an abnormal acetabulum.
What is the treatment for Coxa valga?
Coxa valga can be associated with genu varum and lead to increased stress and early degenerative changes in the medial compartment of the knee. Coxa valga can be treated with varus derotation osteotomy (VDRO) and angled blade-plate fixation 2 . 1.
How is coxa vara associated with spondylometaphyseal dysplasia?
A review on the development of coxa vara by Currarino et al showed an association with spondylometaphyseal dysplasia, demonstrating that stimulated corner fractures were present in most instances. Ashish Ranade et al also showed that a varus position of the neck is believed to prevent hip subluxation associated with femoral lengthening.