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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Habitual dislocation of patella: A review

Distal femoral varus osteotomy. There was no associated leg dysplasia. Find articles by Beom Koo Lee. National Center for Biotechnology InformationU. Nil Conflict of Interest: Among them, osteotomy combined with proximal soft tissue realignment procedures including lateral release and medial reefing has been dislocaiton performed.

J Bone Joint Surg. An anatomic radiographic study. Habitual patellar dislocation is a rare condition where the patella dislocates during flexion and relocates during extension unlike chronic patellar dislocation that occurs during both flexion and extension of the knee, and it usually presents without pain or swelling.

This case was original because of the habitual dislocation and of the excellent functional results obtained after simple surgery and a short postoperative follow-up. Benoit published their series of 12 cases of habitual dislocation of patella with patella alta. He noted that habitual dislocation was not seen in all cases in which vastus lateralis and the iliotibial tract were contracted. It can be recurrent when dislocation is episodic, habitual when it occurs during each flexion movement of the knee and permanent when it persists in all positions of the knee.

The histological studies in cases of habitual dislocation of patella have consistently shown degeneration of striated muscle and replacement with varying amounts of fibrous and adipose tissue.


Subscribe to Table of Contents Alerts. Genu valgum, defects of the patella and femoral condyles were also present in a few cases of habitual dislocations.

In other words it is essential to lengthen the quadriceps above the patella rather than dislovation shorten it below the patella. The postoperative course was simple with no complications. Abstract Habitual dislocation of patella is a condition where the patella dislocates whenever the knee is flexed and spontaneously relocates with extension of the hahitual. Habitual dislocation of patella is a condition where the patella dislocates whenever the knee is flexed and spontaneously relocates with extension of the knee.

Habitual dislocation of patella: A review

Journal List Indian J Orthop v. Proximal soft tissue realignment procedures including lateral release and medial reefing habiyual distal realignment procedures are commonly used in adults. Support Center Support Center. The lateral tether is released by dividing the fibrous adhesions, which extended along the lateral intermuscular septum. A discussion on the etiology and relationship to recurrent dislocation of the patella.

A year-old man visited our institution due to lateral dislocation of the left knee in flexion and instability that had persisted for 7 years Fig. Scoring of patellofemoral disorders.

Bakshi described the difference in the pathology of recurrent and habitual dislocations. Habitual dislocation of the patella in flexion.

Treatment of habitual dislocation of patella in an adult arthritic knee

Treatment A number of reconstructive procedures have been described in the literature for the management of patellar instability. The etiology of patellar instability is multifactorial. They recommended that distal procedures dislocatkon are certain to fail, and if the procedure involves distal advancement of the tibial tendon the condition will actually be made worse.

There were no scars on the knee. Bone factors probably had only a small role in the dynamic stability of the patella.

The initial medial femoropatellar injuries never healed. Patella reduced after release of Iliotibial tract and vastus lateralis. Two-staged procedure was planned, first with patellar realignment and later with definitive total knee arthroplasty. Tight fibrous bands between Iliotibial tract and patella.


Radiological examination revealed evidence of patella alta as defined by Paetlla and Salvati,[ 7 ] and Q angle was 18 degrees. No single procedure is fully effective in the surgical treatment of payella dislocation of patella and a combination of procedures is recommended.

Isolated repair of MPFL was possible because there was no retraction of the knee extensor apparatus or predisposing bone factors, which would have required further surgical procedures. He reported that quadriceps contracture patients may present in a variety of ways. Quadriceps strength was rated 4 MRC grade.

Abstract Habitual dislocation of the patella HDP is a common presentation in pediatric age unlike adults. In our case, the patient was a year-old female with moderate degeneration and an active lifestyle. B Distal femoral varus osteotomy was performed. Combined proximal and distal realignment procedures to treat the habitual dislocation of the patella in adults.

In case of stiffness or associated bone anomalies trochlear dysplasia, patella alta other therapeutic procedures would be necessary. Progressive fibrosis of patela vastus intermedius muscle in children.

Once the knee joint flexion starts, patella tends to dislocate laterally. Realignment procedures can be performed additionally to reduce the joint. Case Presentation A year-old man consulted for limping. Two holes were drilled into the patellar bone by a medial parapatellar approach.

Unconstrained TKA with extensive soft tissue release in the right knee failed after 14 months. Vastus lateralis fibrosis in habitual patella dislocation: