The traumatic factor plays a prominent rôle in this condition. Two types of cases are noted: (1) the. Academic Surgeons. Upstate Orthopedics, LLP – Upstate Medical University Department of Orthopedic Surgery in Syracuse, NY is seeking a BC/BE Surgeons in. Habitual dislocation of patella – surgical technique. Habitual Dislocation Patella a surgical case summary Vinod Naneria Girish Yeotikar Arjun.

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Dislocatio prevent this, always lateral release is combined with medial augmentation. There was no leg-length discrepancy. In case of no retraction of the knee extensor apparatus or predisposing bone factors, isolated MPFL reconstruction seems effective in treating confirmed patellar instability. We believe that clinical improvement of habitual dislocation of the patella can be obtained with correction of soft tissue imbalance and contracture and realignment of the patello femoral and tibiofemoral joints.

Lateral dislocation or subluxation of the patella in children can present in three different forms. Permanent patellar dislocation, either congenital or acquired, is diagnosed at an early age in childhood and numerous surgical techniques have been introduced for its treatment.

He also put forward the idea that quadriceps contracture may sometimes give rise to dislocation of the patella.

He advocated division of abnormal attachment of the fascia lata to the patella followed by division of dense contracted bands within the tendon of attachment of vastus didlocation. Raghuveer K Reddy and Vamsi Kondreddi 1.

A year-old man, construction worker, presented a habitual patellofemoral dislocation which was caused by direct trauma to the knee as a dislocatioj. Reconstruction of the medial patellofemoral ligament for the treatment of habitual or recurrent dislocation of the patella in children.

Very little literature is available on habitual dislocation of patella as most of the studies have combined cases of recurrent dislocation with habitual dislocation. Patella reduced after release of Iliotibial tract and vastus lateralis. To our knowledge, no other cases of habitual patellofemoral dislocation in young adults secondary to trauma which occurred in childhood have been described in the literature. In habituak and permanent dislocations of patella, the supero-lateral muscle contracture was the primary pathology.


Presentation Lateral dislocation or subluxation of the patella in children can present in three different hagitual.

Proximal soft tissue realignment procedures including lateral release and medial reefing and distal realignment procedures are commonly used in adults.

Treatment of habitual dislocation of patella in an adult arthritic knee

If full flexion of knee is possible at this stage, vastus is repaired and the wound is closed. View at Google Scholar T. No single procedure has shown to be effective in the management of habitual dislocation of patella and a combination of procedures involving proximal and distal reconstruction are recommended. At re-exploration in each case, recurrent contracture was apparent in the line of the original vastus lateralis, and there had been incomplete elongation of rectus femoris or vastus lateralis.

In our case, we have done medial patello-femoral ligament reconstruction using semi-tendinosus tendon. Please review our privacy policy. The main difficulty which could have been encountered during surgery was identifying a flexion deficit after performing reconstruction because of the secondary retraction of the quadriceps.

Habitual or recurrent dislocation of the patella is common in children unlike adults. In case of stiffness or associated bone anomalies trochlear dysplasia, patella alta other therapeutic procedures would be necessary.

The patient was 1. A variety of surgical techniques have been introduced for the treatment of habitual dislocation of the patella.

Case Reports in Orthopedics

The rest of the clinical examination, in particular the neurological, muscular, and tendon results were normal. The graft was placed into the drill holes then secured to the suture anchor and doubled back on itself as described by Thaunat and Erasmus [ 1011 ].

However, late presentation of habitual patellar dislocation with osteoarthritis is rare and treatment plan has not yet been established. A quadricepsplasty was considered unnecessary because he had no contracture of the quadriceps femoris.


Surgical Treatment of Habitual Patella Dislocation with Genu Valgum

Other abnormalities including a shallow femoral groove, hypoplastic lateral femoral condyle, and lateral insertion of the patella tendon were also noted.

This generally comprised a dense, fibrous band running along its lower border. An MRI or ultrasound might have shown features of the MPFL and the attachment of the vastus medialis internus on the patella, but these results were not available for the preoperative work-up. Gradual flexion exercises were started postoperatively. National Center for Biotechnology InformationU. During surgery the tight lateral bands were released from the patella and the incision was continued proximally, lateral to the rectus femoris tendon, thus fully releasing the vastus lateralis.

Case Presentation A year-old man consulted for limping. Corrective osteotomy for genu valgum associated with lateral dislocation of the patella, often failed to control the dislocation; and many patients with severe genu valgum did not suffer from dislocation of the patella.

Habitual dislocation of the patella in flexion.

Two holes were drilled into the patellar bone by a medial parapatellar approach. If full flexion is still not possible, either the vastus intermedius tendon requires division or the tendon of rectus femoris needs elongation. The preoperative Kujala et al.

Find articles by Jae Ang Sim. Permanent dislocation is usually congenital and refers to an irreducible dislocation present since birth and associated with a lateral position of the entire quadriceps mechanism. Although the patella was in the femoral trochlear groove in extension, it dislocated laterally with 25 degrees of knee flexion. MPFL reconstruction alone seems effective in habitual posttraumatic patellar dislocation in adults without any associated bone anomalies.

Early results in patients with severe generalised ligamentous laxity and aplasis of the trochlear groove.