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Congenital dislocation of patella with ipsilateral hip flexion-abduction deformity: a case report.

Iliotibial band tightness and its abnormal insertion on patella is one of the contributing factors in congenital dislocation of patella. Although hip flexion-abduction deformity is caused by a tight iliotibial band, as frequently seen in postpolio residual paralysis, an association of hip flexion-abduction deformity with congenital dislocation of patella has never been reported previously. Such a case was presented to us, and surgical repositioning of the patella was carried out by means of release of the tight iliotibial band from the patella besides other tight lateral structures along with medial augmentation and distal realignment of the quadriceps mechanism. The hip deformity was corrected spontaneously after release of the tight iliotibial band from the knee without need for additional surgery at the hip.