| ILIO TIBIAL BAND SYNDROME - ("friction syndrome")
What
is it?
The ilio tibial band runs from the hip to the lateral side of
the proximal end of the tibia. It's function is to resist internal
rotation of the tibia as well as to maintain the lateral integrity
of the leg. Ilio tibal band "friction syndrome" is a condition wherein
the ilio tibial band is stretched and torqued and the distal end
rubs across the lateral condyle of the femur.
What are the common symptoms/complaints? Patients complain
of pain on the lateral side of the knee often extending up the lateral
side of the thigh as high as the hip.
How is it caused?
Overstress of the ilio tibial band. During a normal gait cycle,
the femur and the tibia rotate in unison (i.e. internally during
pronation and externally during supination). However, when a person
over-pronates, the tibia is locked into the Talus by the saddle
joint and therefore continues to rotate internally past the end
of the contact phase while the femur receives its orders from the
brain and begins to rotate externally at the beginning of midstance.
The resulting counter rotation of the femur and the tibia causes
a shearing force to occur in the ilio tibial band which becomes
torqued and stretched. The result is that the distal end of the
band rubs across the lateral condyle of the femur.
How is it treated?
Since the problem is the over-pronation, the patient should be
fitted with orthotics, to correct the counter rotation between the
femur and the tibia.
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