Bilateral Valgum deformity can result from condition which softens bone tissue. It may be due to-
- Rickets
- Osteomalacia
- Rheumatoid Arthritis
- Muscular paralysis of semimembranosus or semitendinosus
- Fracture
- May be secondary to flat foot,osteoarthritis
The degree of knock knee is measured by the distance between the medial malleoli at the ankle when the child lies down with the knees touching each other.
Diagnostic Test
The Q angle which is formed by a line drawn from the anterosuperior iliac spine through the center of the patella and a line drawn from the center of the patella to the center of the tibial tubercle, should be measured next. Inwomen, the Q angle should be less than 22 degrees with the knee in extension and less than 9 degrees with the knee in 90 degrees of flexion. In men, the Q angle should be less than 18 degrees with the knee in extension and less than 8 degrees with the knee in 90 degrees of flexion.
Treatment of Genu Valgum
Degree of deformity, muscle chart and ROM are measured. In mild cases of Genu Valgum in young children, wearing of boots with the inner side of heel raised by 3/8" inch and elongated forward heel (Robert Jones heels) corrects the deformity.
In more complicated cases, the child requires a supracondyles closed wedge osteotomy.
Post operative Physiotherapy
- Gradual knee mobilization is the main part of the treatment.
- Some heat modalities may be given for relief of pain.
- Strengthening exercises for quadriceps, hamstrings and gluteus muscles are given.
- When the patient is able to walk, he is given correct training for standing, balancing, weight transferring and walking.
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