Limb alignment is the alignment of the leg when standing and weight-bearing.

mechanical axis
Long-leg weightbearing X-rays will allow computation of the distance between the mechanical axis (yellow) and the anatomical axis (blue). Here on the one side the patient is shown to have a varus (bow-leg) deformity because the two lines do not match up in the centre of the knee joint.

 

Varus and valgus deformity

When the legs are bowed, it is called a varus deformity. When they are knock-kneed it is called a valgus deformity.

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Discussion of changes to limb length caused by damage to the growth plate before puberty.

Article with photos about the rotational deformities involved in the condition of miserable malalignment.

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CLINICAL PUBLICATIONS

How accurate is anatomic limb alignment in predicting mechanical limb alignment after total knee arthroplasty? SLee SA, Choi, S-H and Jong M. BMC Musculoskelet Disord. 2015; 16: 323.


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