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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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At final followup two years postoperatively, the patient was pain-free.

Clinical photographs showing functional outcome a walking down the stairs b sitting cross legged. She was pateella out her daily activities without much pain or symptoms, but she was never symptom free during this period. Comparative weight-bearing X-ray lateral view: When patella or femoral condyles show severe degenerative changes, patellectomy is advocated Macnab, She recalled a childhood surgery over middle third of left thigh incision and drainage.

The fibrosis was evident as low signal intensity cords on T2 weighted images.

A number of reconstructive procedures have been described in the literature for the management of patellar instability. 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.

Habituwl articles by Ji Hoon Kwak. The diagnostic relevance of Q angle as an indication for distal realignment was not established in our case and we recommend tibial tuberosity-trochlear groove distance TTTG as measured by CT scan as a better tool. The injuries had not affected skeletal development during growth.

It is also termed as obligatory dislocation as the patella dislocates completely with each flexion and extension cycle of the knee and the patient has no control over the patella dislocating as he or she moves the knee. The lateral patellar retinaculum and the synovium were divided and vastus lateralis was detached from the quadriceps tendon, leaving a rim of tendon for suturing. Several factors predisposing to patellar instability have been described such as trochlear dysplasia or a patella alta [ 4 ].


The trochlear morphology groove and depth was normal as well as the height of the patella with Caton-Deschamps index equal to 1 [ 8 ].

Surgical Treatment of Habitual Patella Dislocation with Genu Valgum

Hnevkovsky O, Prague, Czechoslovakia Progressive fibrosis of the pateloa intermedius muscle in children: Reconstruction of the medial patellofemoral ligament for the treatment of habitual or recurrent dislocation of the patella in children. Once the knee joint flexion starts, patella tends to xislocation laterally.

At 4 months of follow-up, the patient was able to work normally as construction worker in public works. A skyline view of the knee showed lateral dislocation of the patella. Distal femoral varus osteotomy. Therefore, there was no indication for recentering the patella or lowering the tibial tubercle by osteotomy. Preoperative patellofemoral X-ray, tangential view in disocation rotation: A discussion on the etiology and relationship to recurrent dislocation of the patella.

Disorders of patellofemoral joint. Treatment A number of reconstructive procedures have been described in the literature for the management of patellar instability.

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 patepla extension of the knee, and it usually presents without pain or patella.

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. Combined proximal and distal realignment procedures to treat the habitual dislocation of the patella in adults. Numerous studies have had good midterm results at least 1-year follow-up with MPFL reconstruction. Combined proximal and distal realignment procedures to treat the habitual dislocation of the patella in adults.

Placing weight on one foot resulted in lateral patellar dislocation, habktual squatting was impossible.

Case Reports in Orthopedics

Sometimes it is associated with angular deformity such as genu valgum. Quadriceps strength was rated 4 MRC grade. We believe that the soft tissue surgery as primary procedure will buy additional time for patient to delay the TKA and proper soft tissue balancing will dislodation the longevity and clinical outcome of the definitive procedures. A year-old man, construction worker, presented a habitual patellofemoral dislocation which was pateella by direct trauma to the knee as a child.


Scoring of patellofemoral disorders.

He noted that in recurrent dislocation, the medial stabilization of the patella was poor because of weakness of the vastus medialis, dysplasia, generalized joint laxity, or post traumatic medial capsular laxity.

Weak activity of vastus medialis and fair dislocaion of the vastus lateralis was seen in patients with habitual dislocations. This article has been cited by other articles in PMC. Lengthening of the rectus femoris tendon was also required in many cases in their series. Knee Surg Sports Traumatol Arthrosc. If full flexion is still not possible, either the vastus intermedius tendon requires division or the tendon of rectus femoris needs elongation.

There were no scars on the knee. 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.

Habitual dislocation of patella: A review

Very little literature is available on habitual dislocation of patella as most of the studies have combined cases of recurrent dislocation with habitual dislocation. They believed that even in the presence of severe ligamentous laxity, development of the trochlear groove could be expected during the remaining growth when the patella is realigned at a young age. Abstract Habitual dislocation of patella is a rare disorder.