Congenital dislocation of the knee surgical management

الملخص EN

ongenital dislocation of the knee (CDK) is a rare disorder Congenital dislocations of the knee are classified as physiologic or pathologic.

Dislocation of the knee has been described in children with arthirogrypusis multiplex congenital in those with spina bifida, and in others suffering from joint laxity syndromes, this paper reports twelve complete congenital dislocations of the knee eight children.

The average age at presentation was nine months.

Patient's age at time, of surgery ranged between three months and three years with an average of nine months, it was not possible in any case to flex the knee beyond zero degree of extension A deep anterior transverse skin fold at the level of the joint was found in all cases.

Surgery is generally-required for congenital pathologic subluxation and dislocation.

The essential abnormality needing operative correction was ever fibrosis of the distal quadriceps with subsequent shortness and contracture.

The operation was performed with the patient in the supine position without a tourniquet The incision was a long anterior incision that extended from the distal half of the thigh to the proximal part of the tibia to expose the distal two thirds of the quadriceps mechanism and the knee joint The patients were followed up from one year to five years following operation, with a mean follow of three years All patients were able to walk freely without an external aid.

Several series in the literature report a spectrum of Hypcextcnsion deformities of the knee varying from simple or physiologic hyperextension lo complete pathologic dislocation, h is difficult to correct the equinovarus deformity of the fool caused by tension on the gastronomies when the knee cannot be flexed sufficiently.

Thus, a reduction of the knee faint first is considered to be essential for producing the correct alignment of the lower limb.