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Flexion contracture

A flexion contracture or flexion deformity is when someone is not able to fully straighten their leg either actively or passively.

Flexion contractures can be caused by -

• A piece of bone or othe tissue getting in the way and blocking movement.
• Knee replacement components in the wrong position.
• Scar tissue restricting any further straightening.
• Extreme tightness in the hamstring muscles that cross the back of the knee.

If someone has a flexion contracture they are likely to limp as they walk and they will find normal everday activities more demanding in terms of the energy needed.