HABITUAL DISLOCATION PATELLA PDF

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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They recommended that distal procedures alone are certain to fail, and if the procedure involves distal advancement of the tibial tendon the condition will actually be made worse. The patellar height was restored to normal by distal advancement of patellar tendon. Support Center Support Center.

If it was not possible to fully flex the knee at this stage, rectus femoris with or without vastus intermedius was lengthened to achieve reduction in full flexion of the knee. An anatomic radiographic study. Recurrent dislocation of the patella due to abnormal attachment of the ilio-tibial tract.

Placing weight on one foot resulted in lateral patellar dislocation, and squatting was impossible. The patient was 1. Scoring of patellofemoral disorders.

He noted that habitual dislocation was not seen in all cases in which vastus lateralis and the iliotibial tract were contracted. Preoperative radiographs anteroposterior a and lateral view b of left knee joint showing degenerative changes. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License http: Further flexion is then possible only if the patella is allowed to dislocate, when a full range of motion is readily obtainable.

During surgery we adjusted graft tension with a pin in the medial epicondyle attachment.

Habitual dislocation of patella: A review

In the physical examination, the apprehension test was positive. Four months after surgery the patient has begun working normally. In case of no retraction of the knee extensor apparatus or predisposing bone factors, isolated MPFL reconstruction seems effective in treating confirmed patellar instability.

He said that tibial tuberosity transplant might be useful in adults, but in children it could causes genu recurvatum from premature closure of the anterior part of the epiphysis and distal migration of the tibial tubercle and traction spur. Depending on the pathology; medial plication, advancement of vastus medialis across the anterior surface of the patella, patellar tendon transfer or transfer of sartorius to the patella was added.

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He noted that a number of bony deformities can be associated with dislocations of the patella, but may not be the actual cause. He also put forward the idea that quadriceps contracture may sometimes give rise to dislocation of the patella.

Therefore, we thought proximal soft tissue realignment alone was not sufficient to realign the patella and payella a femoral supracondylar osteotomy in addition. Many surgical procedures using proximal realignment and distal realignment have been reported to treat HDP in children with satisfactory results.

A number of patients had history of intramuscular injections in the thigh in the neonatal period leading to contractures later on. When lateral dislocation of the patella in flexion was no longer observed, a bone graft was inserted into the osteotomy site.

The patella has been stabilized with extensive proximal release and vastus medialis advancement. Upper tibial osteotomy for osteoarthritis. Combined proximal and distal realignment procedures to treat the habitual dislocation of the patella in adults.

Surgical Treatment of Habitual Patella Dislocation with Genu Valgum

A year-old man consulted for limping. 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. 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.

Traditionally, habitual dislocation has been treated in pqtella same way as recurrent dislocation except for the need for lengthening of the quadriceps tendon.

J Bone Joint Surg Br. Am J Sports Med.

Treatment of habitual dislocation of patella in an adult arthritic knee

She was carrying out her daily activities without much pain or symptoms, but she was never symptom free during this period. Progressive fibrosis of the vastus intermedius muscle in children. The failed TKA was revised by using constrained-type prosthesis. Nil Conflict of Interest: Combined proximal and distal realignment procedures to treat the habitual dislocation of the patella in adults. In a study of 14 patients Drez et al. Habitual dislocation of the patella in flexion.

Determination of the factors permits an effective elective treatment plan and it has been known that satisfactory or significant treatment results can be obtained with combined procedures,[ 6 ] not with a single procedure.

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B Distal femoral varus osteotomy was performed. In recurrent dislocations, there were no contractures of the soft tissue lateral to the patella, but medial stabilisation was found to be weak.

Radiographs showed well reduced patella dislocaation both lateral, anteroposterior view and skyline view [ Figure 2 vislocation. Abnormal bands and connections in the tendinous insertion of the quadriceps were found, and hanitual thought to be of congenital origin. The corrective surgery for habitual dislocation involved release of any superolateral contracture, until the patella remained in the intercondylar groove in the fully flexed position of the knee.

Discussion The causes of habitual patellar dislocation include contracture and fibrosis of the quadriceps femoris, vastus lateralis, and lateral retinaculum, abnormal iliotibial band attachment, repeated habitusl injections into the thigh, patella alta due to the abnormal position of an elongated patellar tendon, systemic ligament laxity, dysplastic lateral femoral condyle, and genu valgum 2 – 4.

Habihual report shows that a case of neglected traumatic patellofemoral dislocation in childhood can progress to habitual patellofemoral dislocation in young adult. The lateral retinaculum was thickened while the medial retinaculum was thinned.

On the postoperative radiograph, the congruence angle, sulcus angle, Q-angle, and Insall-salvati ratio was They performed arthroscopy in all cases and found that chondromalacia of the patella grade III to grade IV was present in all cases.

Case Reports in Orthopedics

Criteria which allowed him to return to work were no pain, stability of the patella, no swelling, and full range of motion. Contracture of the Quadriceps Dislocatino. Considering that the risk of joint stiffness would be high in our patient because of the complex procedures including lateral retinacular release and medial reefing, we used an open osteotomy technique and took care not to damage the joint capsule during surgery.

A variety of surgical techniques have been introduced for the treatment of habitual dislofation of the patella with genu valgum.