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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Treatment of habitual dislocation of patella in an adult arthritic knee

He reported that his patients with habitual dislocation had contractures of all parts of quadriceps except vastus medialis. No limitation of joint motion was noted. Realignment procedures can be performed additionally dislocatiob reduce the joint. J Clin Orthop Trauma.

Habitual dislocation of patella: A review

All patellae were small, hypoplastic and hypermobile but no patient had patella alta. In a later publication, Williams said that habitual dislocation of the patella always required releases proximal to the patella and quadriceps lengthening was an essential part of treatment and must be performed proximally.

Recurrent dislocation of the patella in the adult: Most authors have reported habitual dislocation in association with shortening of the quadriceps muscle, and consider that lengthening of the tendon is an essential part of the procedure to allow the patella to remain reduced after the realignment.

Imaging of the soft tissues might have provided more specific information. During surgery, he found that there were well defined bands, or muscular contractures within the quadriceps in each case. Proximal soft tissue realignment procedures including lateral release and medial reefing and distal realignment procedures are commonly used in adults.


A year-old man consulted for limping. A year-old man, construction worker, presented a habitual patellofemoral dislocation which was caused by direct trauma to the knee as a child. Shen performed combined proximal and distal procedure in 12 adult patients with habitual dislocation of patella.

However, it has been known that combined procedures, not one single procedure, should be performed to achieve relatively satisfying treatment results. Total knee arthroplasty in a patient with congenital dislocation of the patella: They also recommended that various soft tissue procedures are necessary in combination for the correction of habitual dislocation of patella in adults with high grade patella-femoral chondromalacia. There was full range of motion Figures 4 and 5. He noted that habitual dislocation was not seen in all cases in which vastus lateralis and the iliotibial tract were contracted.

Treatment of habitual dislocation of patella in an adult arthritic knee

Contracture of the quadriceps muscle. Support Center Support Center. J Bone Joint Surg Br.

At birth they may present with a stiff extended knee or congenital recurvatum or congenital dislocation. At 4 months of dislocatiln, the patient was able to work normally as construction worker in public works. There was no recurrent dislocation or apprehension. No predisposing factor was found [ 4 ].

Patella reduced after release of Iliotibial tract and vastus lateralis.


A variety of surgical techniques have been introduced for the treatment of habitual dislocation of the patella with genu valgum. Patella is dislocated when the knee is flexed and reduced in extension.

Abstract Habitual dislocation of patella is a rare disorder. Preliminary experience with a method of quadricepsplasty in recurrent subluxation of the patella.

In our patient, genu valgum and lateral femoral condyle hypoplasia following a growth plate fracture were thought as the cause of the dislocation.

Habitual dislocation of patella: A review

B Distal femoral varus osteotomy was performed. Contracture of the deltoid muscle in the adult after intramuscular injections. Am J Sports Med.

Therefore, there was no indication for recentering the patella or lowering the tibial tubercle by osteotomy. Published online Oct Habitual dislocation of patella is never obvious in the young, fat-covered knee and may be missed unless actively sought.

Nil Conflict of Interest: Successful results require combination of these procedures, depending on clinical and intraoperative findings on an individual basis. Author information Copyright and License information Disclaimer. A number of patients had history of intramuscular injections in the thigh in the neonatal period leading to contractures later on.

Histological examination in these cases revealed inflammatory cell infiltration, fibrosis and muscle fibre degeneration.

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