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Why Bow Legs and Knock Knees Lead to Deforming Arthrosis

Author: Doctor Vitaliy Veklich Orthopaedic surgeon and Doctor of Medicine - Ladisten Orthopaedic Clinic - Kiev, Ukraine(i) : Contact: doctorveklich.com

Published: 2010-06-21 : (Rev. 2018-05-25)

Synopsis and Key Points:

Bow legs and knock knees are deformities that can lead to knee-joint movement abnormality and result in deforming arthrosis.

Main Digest

Bow legs and knock knees are deformities that can lead to knee-joint movement abnormality and result in deforming arthrosis.

Bow legs (genu varum) and knock knees (genu valgum) are deformities that are not only cosmetic defects. But they can also lead to knee-joint movement abnormality that may result in deforming arthrosis.

If we look at picture 1 we find out that normal body weight distribution is when the leg axis go straight through femoral head, center of the knee-joint and center of articulation of foot. In this case the body weight distributes naturally and articular cartilage of knee-joint have equal weight distribution at full surface. There is a natural position of knee-joint that allows to save the articular cartilage in health during years.

When a Person Has Bow Legs or Knock Knees

Picture of bow legs and knock knees
Picture of bow legs and knock knees

Look at picture 2. You can see that the leg axises go still straight through the femoral head and center of articulation of the foot but do not go through center of the knee-joint. So body weight distribution change and regarding the knee-joint one part of the knee have more loading than another.

So articular cartilage of knee-joints have different weight distribution at surface that leads to its attrition in the part where the loading is maximum. In time the articular cartilage attrition leads to deforming arthrosis and a person feels pain in knee-joints.

Appearance of deforming arthrosis usually happens in senior years - but sometimes it happens in middle age depending on individual health of each person.

The only way to protect yourself from appearance of knee-joint deforming arthrosis is the surgery for bow legs and knock knees correction.

With the surgery the leg axis become natural position so articular cartilage of knee-joint get equal weight distribution at full surface and keeps its health in years. Also there is a cosmetic effect that lets a person feel more comfortable around other people.

(i)Source/Reference: Doctor Vitaliy Veklich Orthopaedic surgeon and Doctor of Medicine - Ladisten Orthopaedic Clinic - Kiev, Ukraine. Disabled World makes no warranties or representations in connection therewith. Content may have been edited for style, clarity or length.

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