Knock Knees Treatment

What is Knock Knee: Knock knee means touching of medial side of knee during standing and walking. In this problem, both side of leg goes outside.

What are the Causes of Knock Knees: Knock knee occurs because of decrease in growth of distal femoral physis on outside. Mostly knock knee occur because of weak bone in children which occur mostly because of vitamin D deficiency. Other causes are trauma, infection affecting the growing distal femoral physis.

What are the Symptoms of Knock Knees: In knock knee child will complain of touching of medial portion of femoral condyle (medial side of knee joint bone). it causes awkward wide based gait, pain. In long term, individual will develop flattening of lateral femoral condyle, osteo-chondritis & ultimately arthritis of knee joint mostly in lateral compartment of knee.

How Knock Knees can be Diagnosed: clinically by touching of medial aspect of knee and increase in normal distance between both ankle joint. Normal distance between medial malleolus is less than 8 cm but if it is more, then treatment should be started.

Tests needed for Knock Knees: Full length X-ray both lower limb AP VIEW is needed in standing position to confirm the diagnosis & to measure the angle of deformity. Vitamin D assessment is required to see the status of Vit-D deficiency.

How Knock Knees can be treated: Knock Knees Treatment depends on the cause and severity of the condition. Knock problem is physiological between 2-5 year of age and it correct naturally with age. But sometime due to vitamin D deficiency, its severity may exaggerated so child should be given VIt-D supplements. Dose and duration will be decided by pediatric orthopedic surgeon & pediatrician. Many braces are prescribed but not of much use. After age of 7 year and even in younger age with sever deformity, child may need surgery to modulate growing physis by the use of transphysial screw/ guided growth plate application. This principle can only be used if child have sufficient growth remaining with child. By this method deformity gradually correct with increase in height of child.  But if child don’t have much remaining growth potential in adolescent near maturity and adult, then deformity need surgery by the osteotomy ( by cutting the bone & correcting the deformity in one go. ). Physical therapy is an essential part of knock knees treatment, particularly when surgery has occurred.

Knock Knees Treatment X-Ray - Before
Knock Knees Treatment - Before
Knock Knees Treatment X-Ray - After
Knock Knees Treatment - After

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Dr. Jitendra Kumar Jain
Trishla Orthopedic Clinic & Rehab center, 182C / 350A, Tagore Town, Prayagraj (Allahabad) U.P-211002, India

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